baber/WOPTO huggingface dataset:
Patent GB-1246523-A (GB)
Title: Improvements in a power operated unit for drilling and similar purposes
IPC: B23Q5/26
Filed: 1969-08-19
Abstract: 1,246,523. Drilling machines. ATLAS COPCO A.B. 19 Aug., 1969 [10 Sept., 1968], No. 41337/69. Heading B3C.  A drilling machine comprises a drill chuck 15 Fig. 1, rotated by a sliding vane air motor 16, and moved at a fast approach rate, and a low drilling rate, by a combined pneumatic and hydraulic feed system 14. A cylinder 26, Fig. 3, is filled with hydraulic fluid and is connected to an annular hydraulic fluid reservoir 28 via conduits 45-48 and valves 49-53. Cylinder, 26 and reservoir 28 are separated by an elastic membrane 29 forming an air chamber 27, which, along with an air cylinder 32, is connected to an air supply 35 by a valve 33. The rear end of motor 16 constitutes a feed piston which has a rod 18 carrying an hydraulic piston 19, an adjustable cam 68, and a plate 67. Air is supplied to motor 16 from a fitting 23, through rod 18, and the valve supplying the air is controlled by cam rod 22 when in its retracted position. In operation, air is supplied to cylinder 32 and exhausted from chamber 27, so that piston 19 forces the hydraulic fluid to flow from cylinder 26 through conduit 45 and one or both conduits 46 and 47, 48, into reservoir 28. The feeding rate of piston 19, and therefore drill 10, is controlled by the valves in the hydraulic feed system. The drill is retracted when plate 67 actuates a valve 42 so as to move valve 33, and air is supplied to chamber 27 and exhausted from cylinder 32. Hydraulic fluid is forced from reservoir 28, through conduits 48, 46, 47, 45 to cylinder 26, so that piston 19 is moved upwardly. Valve 53 is closed when the fast approach brings drill 10 into contact with the workpiece 9, and the slow drilling feed is determined by the flow through conduit 46 and valve 49, which is adjustable. To provide for change to drilling feed before the drill engages the work, cam 68 engages a spring biased ball 69, which retards the movement of parts 15, 16, 18, 19, 22 instantaneously, so that valve 53 closes. Several such machines may be fixed to a frame.
Patent GB-1008696-A (GB)
Title: Apparatus for feeding cigarettes from cigarette-making machines to packing machines
IPC: A24C5/35
Filed: 1962-11-01
Abstract: 1,008,696. Cigarette reservoirs. A. K. McCOMBIE, and THE MOLINS ORGANISATION Ltd., Oct. 30, 1963 [Nov. 1, 1962], No. 41394/62. Heading B8A. Cigarettes from a cigarette making machine are transferred by a catcher band to the upper surface of endless conveyer 4 and fall between the partitions 5 thereof so as to be transferred to the left. They then fall over the end of the conveyer and are moved as shown to the right along a band 15 till they fall down shoot 11 into a compartment formed by one of the partitions 20 20 of endless belt conveyer 6. Each compartment is filled by the cigarettes and is then discharged down shoot 21 towards a packing machine. The compartments formed by the partitions 20 of belt 6 form a reservoir R the capacity of which may be varied by varying the position of shoot 11. Thus shoot 11 is carried by said band 15, an aperture in which band forms the inlet 12 for filling the compartments, so that band 15 constitutes both the inlet and the shoot 11, and is wound at each end upon a spring drum so that by movement of the band the position of shoot 11 and inlet 12 is varied to vary the capacity of the reservoir. Specification 1,008,695 is referred to.
Patent GB-1044579-A (GB)
Title: Method of producing precision bore glass tubing of uniform wall thickness
Inventor: ADAMS REGINALD VICTOR
IPC: C03B19/04
Filed: 1964-10-12
Abstract: To produce glass tubing of uniform bore and wall thickness and of true circularity, the glass at a temperature above its softening point is centrifuged on a layer of molten tin inside a hollow cylindrical container, the container then being cooled and the glass tube withdrawn. The inner bore of the molten tin will not have the irregularities of the container.  The tin and glass may be introduced together as a powdered mixture, the denser tin forming the outer layer, or the tin tube may be preformed and the glass added separately as a powder or as molten glass.  Ply or composite glass tubing may be made by the introduction of a second glass after the first glass tube is formed, the container being cooled before significant diffusion of the two glasses takes place.  With suitable modification a continuous process can be achieved with molten glass fed from a glass tank into the rotating container and molten tin, the glass being solidified in its passage along the metal float by a temperature gradient along the container and the solidified tube being rotated as it is withdrawn.  Induction heating of the container is preferably used and heating of the container is in an atmosphere, for example, of forming gas.  The container may be of graphite, metal or ceramic.
Patent GB-1203330-A (GB)
Title: Printing-hammer mechanism
Inventor: BODEN HORST
IPC: B41J9/26
Filed: 1968-08-30
Abstract: 1,203,330. Selective printing. ELEKTRONISCHE RECHENMASCHINEN WISSENSCHAFTLICHER INDUSTRIEBETRIEBKARL-MARX-STADT, VEB. 30 Aug., 1968, No. 41599/68. Addition to 1,194,275. Heading B6F.  A print hammer 117 is operated by epicyclic gearing, a planet wheel 115 being rotated within a fixed ring gear 116 of a diameter a whole number multiple thereof greater than two by means of a block 113 within which a shaft 114 bearing the hammer 117 and the planet wheel 115 is rotatably mounted, the block 113 being fixed to a shaft 110 rotated by a shaft 107 through bevel gears 108, 109. Owing to the 3: 1 ratio of the diameters of the ring gear 116 and planet wheel 115, the hammer describes a three cusped hypocycloid (Fig. 2, not shown), one cusp occurring at the striking station. The hammer co-operates with a type carrier 122 to print on paper 121 fed between guides 120. The hammer mechanism is carried by a baseplate 101 supported for motion along the type carrier under the action of a spindle 106 passing through a nut 105, by rails 104.
Patent GB-1318263-A (GB)
Title: Electroconductive agents
IPC: H01B1/00
Filed: 1970-08-28
Abstract: 1318263 Electrophotographic element TOMOEGAWA PAPER MFG CO Ltd 28 Aug 1970 [27 Dec 1969 13 March 1970] 41611/70 Heading H1K [Also in Divisions C3 and D2] A support for an electrophotographic element comprises anti-static paper obtained by impregnating paper with an aqueous solution of a sulphonated polystyrene in which more than 60% of the styrene residues are sulphonated and neutralized with all ammonium or all lithium cations, followed by drying.
Patent GB-1175253-A (GB)
Title: Improvements in or relating to Optical Viewing Systems in Photogrammatic Plotting Apparatus.
Inventor: KNAUF JACK WILLIAM
IPC: G01C11/00
Filed: 1967-09-12
Abstract: 1,175,253. Photo-grammetry. J.W. KNAUF. Sept.12, 1967 [Oct.28, 1966], No.41669/67. Heading G1F. In a photo-grammetric plotting apparatus e.g. a Kelsh plotter, employing optical projection, light from lamps in projection mechanisms 31, 48 is directed through a stereo-pair of diapositives 26 supported in carriers to produce a stereoscopic image which may be viewed through a viewing mechanism 86, shutter mechanisms being provided to alternately shut-off and allow the passage of light to each diapositive, such that only one diapositive is illuminated at any one time, the viewing mechanism also being provided with a shutter which allows alternate viewing of the image from one diapositive and the other in correspondence with the alternate illumination thereof to increase the steroscopic effect in the viewed image. The carrier for the diapositives are gymbal mounted and carried on horizontal cross-bars 20, 21. Arms 32, 46 carry the projection mechanisms 31,48 and by way of parallelogram linkages the light from these mechanisms is always directed so that the images of the diapositives are superimposed to give the desired stereoscopic effect. Telescopic arms 78, 79 connect the diapositive carriers to a frame structure 70 supporting a viewing platen 68. The shutters are mounted in the projection mechanisms 31, 48 and are in the form of segmented drums rotated in the path of the projected light by stepping motors which ensure that light only emanates from one mechanism 31 or 48 at the time. The viewing mechanism also incorporates a shutter in the form of an apertured cylinder rotated by a stepping motor in synchronism with the drive to the shutters in the mechanisms 31, 48, this shutter allowing only one eye to view the diapositive image at the time, i.e. the right eye only views the right side diapositive and vice-versa. Provision for reversed stereoscopic vision is also incorporated as this is useful in locating the "floating point" datum. In alternative embodiments for use with other plotters, the shutters for the projection mechanisms are located beneath the diapositives and an alternative viewing mechanism described comprises a pair of spectacles having an endless film driven by a stepping motor across the fronts of the lens, the film having uniform transparent and opaque areas.
Patent GB-1461623-A (GB)
Title: Signal level indicating apparatus
IPC: G01R19/00
Filed: 1974-09-25
Abstract: 1461623 Indicating peak level and volume units SONY CORP 25 Sept 1974 [28 Sept 1973] 41720/74 Heading G1U A signal level indicating system has two circuits with selectable time constants connected in series, the first being fed via a rectifier from an amplifier receiving the input signal and the second being coupled to an indicator. In a device for indicating peak values of VU, a logarithmic amplifier 2 is followed by a full-wave rectifier 3, 4. A futher amplifier 5, has a feedback loop including a rectifying diode 7 and a circuit 8 having a time constant selectable by switch 19. The rectifier 7 output supplies the gate of a source follower FET 9 which drives a second circuit 14 having a time constant selectable by switch 20 which is ganged to switch 19. A meter 15 is connected to the circuit 14 output. As shown, circuit 8 provides rapid charging of capacitor 13 and slow discharge via resistors 11, 12. Circuit 14 only provides attenuation with switch 20 open, thus meter 15 indicates the peak level of the input 1. With the switches closed, capacitor 13 is able to discharge quickly but capacitor 18 slows the rise time of the signals applied to the meter which now gives a VU indication.
Patent GB-963585-A (GB)
Title: Improvements in or relating to control devices for automatic machines
Inventor: COX ALAN JOHN
IPC: B23B7/10
Filed: 1959-12-11
Abstract: 963,585. Controlling automatic machines; dimpling. BIRMINGHAM SMALL ARMS CO. Ltd. Dec. 5, 1960 [Dec. 11, 1959], No. 42112/59. Headings B3B and B3Q. [Also in Division F2] A control device for an automatic machine comprises a movable member for initiating, when moved, a desired operation or operations of the machine, a disc of substantially rigid but ductile material being arranged for rotation in synchronism with the machine, the disc being deformed at one or more parts in such manner that when it is rotated its deformed part or parts will engage and move the movable member so as to initiate the said operation or operations. A circular disc 1, Fig. 1, of sheet metal is mounted on a control shaft of the machine, normally one adapted to make a complete revolution for an operational cycle of the machine, a location peg 2 is provided so that the disc may be replaced in the same position. A casing 3, Fig. 2, surrounds the disc and includes a rear part having a boss for mounting on the machine around the control shaft. A front part 4 of the casing is provided with an aperture 5 in which is mounted by a hinge 6, Fig. 1, and screw 7, a plate 8 carrying a number of switches 9 for connection to electrical control circuits of the machine. The switches may control such operations as speed changes and tool and workpiece feeds. The switches are mounted in two staggered rows on opposite sides of an opening 10 in the plate 8. Levers 12, pivoted in brackets 11 secured to the plate, have rollers 15, Fig. 2, at one end and switch-operating tappets 13 at the other. The disc is deformed at various angular positions and radially to correspond to the switch locations with dimples 16 at the rear of the disc forming rolleroperating protrusions on the opposite side. Adjacent the switch-operating positions, supporting rollers 19 and 19a are provided to locate the plane of the disc. Apparatus is described for making the dimples while a plain disc is rotated in the machine, the apparatus may be either detachable or a permanent part of the device and comprises a U-shaped member (Figs. 3 and 4, not shown) for straddling the disc and carrying at the ends of its limbs a punch and an anvil. The anvil is moved towards the punch by a spanner-operated screw. Other forms of deformation such as tongues punched out and bent may be used. The control device may be supplied as a part of an automatic machine or as a separate attachment to an existing machine.
Patent GB-1085804-A (GB)
Title: Process for the manufacture of products of beryllium or beryllium alloy
Inventor: MALLEN JOSE
IPC: B21C37/00
Filed: 1964-10-15
Abstract: In a process for the manufacture of products of beryllium or beryllium alloy, particularly casings for fuel rod in nuclear reactors, cast beryllium or beryllium alloy is subjected in the course of its shaping to a thorough plastic hot working such as extrusion in one or more steps and is stress-relieved at a temperature in the range 550 DEG  C. to 750 DEG  C., i.e. below and close to the recrystallization temperature, whilst imparting a tensile force to straighten the extruded beryllium or beryllium alloy, and then subjected to controlled recrystallization annealing. There may optionally be a compression before the hot working and a warm drawing after it. The hot working may be an impact extrusion, the metal being coated with a thin layer of silver or an extrusion under a casing of soft steel. A pre-extrusion may be carried out under a thin casing followed by extrusion under a thick casing.  In an example where the process is used for the production of beryllium tubes, a cast ingot is compressed for 2 minutes at 650 DEG C. under a pressure of 10,000 bars.  Extrusion at 950 DEG C. is carried out under a casing of soft steel 2 mm. thick until the cross-sectional area of the billet is reduced by a factor of 6. The billet is cut into sections and pierced.  A second extrusion at 950 DEG C. is carried out at 27 mms. per second, the cross-sectional are of the billets being reduced by a factor of 15.  The tubes thus produced are stress relieved at 650 DEG C. for half an hour whilst a tensile force is imparted to them to straighten them and then annealed at 750 DEG C. for 4 hours.
Patent GB-1395528-A (GB)
Title: Inverters
IPC: H02M7/515
Filed: 1972-09-12
Abstract: 1395528 Inverting FIZIKO-ENERGETICHESKY INSTITUT AKADEMII NAUK LATVIISKOI SSR 12 Sept 1972 42187/72 Heading H2F In a polyphase inverter each arm comprises a plurality of series-connected thyristors 1 ... 6 and reverse diodes 7 and has a commutation choke 13 ... 18 connected between the arm and an output terminal, commutating capacitors 19 ... 21 being connected in parallel with the output terminals and a further choke 23 being connected in the D.C. line. As described, the reverse diodes 7 are avalanche diodes which equalize the voltage distribution across the thyristors of each arm. The Specification describes the commutation in some detail.
Patent GB-1523325-A (GB)
Title: Electrostatic reproduction apparatus
IPC: G03G15/09
Filed: 1975-10-15
Abstract: 1523325 Magnetic brush development XEROX CORP 15 Oct 1975 [20 Nov 1974] 42243/75 Heading B2L In a magentic brush development system the developer rolls 51-54 are mounted on a pivoted spring biased bracket that also carries a follower roll 87 bearing on the drum 15. The motion of the bracket thus follows variations in the radial run-out of the drum so that there is a constant spacing between the rolls and the drum. The housing of the system comprises two relatively-movable sections one of which includes a developer mixer see Specifications 1521775 and 1521776.
Patent GB-1182884-A (GB)
Title: Production of Polyurethane Casting Resins and Coatings.
Inventor: GRUBER HERMANN
IPC: C08G18/54
Filed: 1968-09-05
Abstract: 1,182,884. Polyurethane coating. FARBENFABRIKEN BAYER A.G. 5 Sept., 1968 [14 Sept., 1967], No. 42277/68. Heading B2K. [Also in Division C3] A coating composition comprises a polyurethane prepared by reacting a polyisocyanate with a polyhydroxyl compound which is the product obtained by boiling castor oil with a ketone-formaldehyde condensate. The composition may be used as a protective coating on iron or as a floor coating on concrete. In an Example a polyhydroxyl compound prepared by boiling castor oil with a cyclohexanoneformaldehyde condensate is mixed with barium sulphate, titanium dioxide and a dispersion of molecular sieve zeolite and to the mixture is added polyphenylpolymethylene-polyisocyanate. The composition is applied to glass plates and dried.
Patent GB-1364007-A (GB)
Title: Method and device for attenuating the noise emitted by jet engine nozzles
IPC: F02K1/34
Filed: 1972-09-12
Abstract: 1364007 Jet propulsion nozzles - silencing SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 12 Sept 1972 [23 Sept 1971] 42308/72 Heading F1J The invention relates to a method of attenuating noise emitted by the nozzle of a jet engine in which the jet stream is caused to be "flattened" in either a horizontal plane or a vertical plane by means of two pairs of panel members which are movable between a retracted position and a projected operative position. The silencing  effect is produced in the plane of the flattened stream. In a first embodiment the nozzle is of rectangular section and two pairs of panels are provided, one pair adjacent the top and bottom walls and the other pair adjacent the side walls. The latter pair of panels is shown projected to the operative position in Fig. 2, whereby the jet stream is caused to be flattened in a vertical plane so that the nozzle is effectively silenced to an observer on the ground. The other pair of panels is moved to the operative position when the aircraft is on the ground so that the nozzle is again silenced to observers on the ground.  The panels are movable by actuators, the actuators of the two panels of each pair being coupled. In Figs. 6 and 7 the nozzle is provided with a pair of angularly movable members R which constitute a thrust reverser. In accordance with the invention the members R may be moved only partly towards the closed position whereby the jet stream is flattened in the horizontal plane and effectively silenced when the aircraft is on the ground to observers on the ground. A second pair of panel members 1 is provided and are movable to an operative position in which the jet stream is flattened in the vertical plane whereby the nozzle is silenced to an observer on the ground when the aircraft is in flight. In Fig. 8 a pair of jet nozzles T are disposed side-by-side and a pair of panel members 1 is disposed one at each side of the assembly so that when the panels are moved to the operative position the combined jet stream of the two nozzles is flattened in a vertical plane. Flattening of the jet stream in a horizontal plane is effected by partial closure of the thrust reverser members R.
Patent GB-1271366-A (GB)
Title: Improvements in or relating to braking apparatus for motor vehicles
Inventor: PAGE WILBUR MILLS
IPC: B60T13/26
Filed: 1968-09-05
Abstract: 1,271,366. Brake valves. CLAYTON DEWANDRE CO. Ltd. 26 Aug., 1969 [5 Sept., 1968], No. 42318/68. Headings F2E and F2F. In motor vehicle braking apparatus in which the brakes are actuated by a motor 1 having a fluid pressure operated diaphragm piston 2 controlling a rod 5 to actuate a wedge 6 and in which the brakes are locked on for parking by a spring operated piston 8 on loss of fluid pressure entering chamber 9 from a fluid pressure release line 14, an emergency release valve 15 is interposed in the line 14 between the motor and the drivers' valve 11 whereby on failure of fluid pressure in line 14 the brakes, which are locked on by the spring 7, are disengaged by connecting an emergency line 33 to the valve, which closes off connection between ports 17, 18 connecting the motor and drivers valve, and opens communication between the emergency line 33 and brake motor 1 to release the brakes. The valve 15 has a stepped hollow piston 20 having a stem portion 24 which is moved inwardly by the union connecting the emergency line, a piston head 21 being moved into a counterbore 31 to close off the port 17. Pressure in the emergency line 33 opens a disc valve 26 embodied with the piston to allow pressure fluid to pass through radial openings 29 in the piston wall and through port 18 to chamber 9 to release the brakes. In a "lock actuator" system the emergency release valve can be interposed between the lock control valve and the lock release piston to enable the lock to be released in the event of a lockline failure.
Patent GB-1477270-A (GB)
Title: Polymerization process
IPC: C08F14/00
Filed: 1975-10-16
Abstract: 1477270 Preventing polymer scale formation during polymerization CONTINENTAL OIL CO 16 Oct 1975 [29 Oct 1974] 42505/75 Heading C3P Polymer build-up on the interior surfaces of a polymerization vessel during the aqueous dispersion polymerization of a water-insoluble monoethylenic monomer which is liquid under the polymerization conditions, is inhibited by adding benzotriazole and/or tolyltriazole and/or 2 - (2<SP>1</SP>- hydroxy - 5<SP>1</SP> - methylphenyl)benzotriazole to the dispersion prior to polymerization. Build-up may be further inhibited by additionally including (1) an alkylated copolymer of an N-vinyl lactam of the formula wherein n is an integer of 1 to 3 and R and R 1  are independently, H, CH 3  or C 2 H 5  ; and an at least C 2  alpha olefin, and/or (2) an alkali- or alkaline earth metal salt of an aminocarboxylic acid of formula (R) n -N-(A-COOH) 3-n  wherein R is -CH 2 CH 2 OH or -CH 2 CH 2 CH 2 OH, A is C 1 _ 3  alkylene and n is zero, 1 or 2, or of the formula wherein Z is C 1-4  alkylene; X is zero, 1, 2, 3 or 4; Y and Y<SP>1</SP> are independently H, -CH 2 COOH or hydroxyalkyl and Y<SP>11</SP> is H or -CH 2 COOH. The preferred amino carboxylic acid salt is the tetra sodium salt of E.D.T.A. The examples relate to vinyl chloride polymerization.
Patent GB-1531478-A (GB)
Title: Hydraulic pumping apparatus
IPC: B62D5/07
Filed: 1975-10-16
Abstract: 1531478 Rotary positive-displacement fluidmachines TYRONE HYDRAULICS Inc 16 Oct 1975 [18 Oct 1974] 42525/75 Heading F1F [Also in Division B7] In pumping apparatus for e.g. an hydraulic system 36, 37 in a motor vehicle, an unloading valve 22 for a gear-pump 10 may be depressed against the resistance of a spring 54 to obturate a suction cavity 12 by pressure transmitted to a piston 53 through a solenoid-operated pilot valve 41 from a discharge passage 27, which may contain a by-passing valve 30. A discharge cavity 13 may contain a non-return valve 22a. The pump may be driven by the engine 18 of the vehicle. Alternatively, the pump 10 is driven by the transmission gears of the vehicle and serves as an auxiliary pump for an hydraulic steering-system 71, which is normally supplied with fluid by a pump 74 driven by the engine 75 of the vehicle, the valve 22 being held in its closed position by the discharge pressure of the pump 74. If the engine fails the valve 22 rises and thus brings the pump 10 in to service, operation of this pump being sustained by the motion of the vehicle. When the vehicle is 'reversed' a valve 65 reverses the connections between the lines 68, 69, 70, 72 so that the pump 10 remains capable of feeding the system 71.