baber/WOPTO huggingface dataset:
Patent GB-1220771-A (GB)
Title: Casting and forging apparatus
IPC: B22D18/02
Filed: 1969-03-03
Abstract: 1,220,771. Forging ; casting - machines. NORTH AMERICAN ROCKWELL CORP. 3 March, 1969 [26 April, 1968], No. 11195/69. Headings B3F and B3H. A machine for casting workpieces and then forging them comprises a turntable 24 with fingers 134 to support the workpieces cast at a station 126, Fig. 2, and an hydraulic pistoncylinder unit 84, Fig. 4, to raise the turntable for indexing and to lower it to engage a locking pin 88. The turntable 24 is rotatably mounted with an annular plate 32 which has spaced holes 36, Fig. 3, which are engaged by the pin 88. The pin is mounted on a sleeve 66 on a shaft 62 about which a yoke 54, which is moved by the unit 84 to raise and lower the turntable 24, is rotatably mounted. The indexing mechanism comprises a ring 90 rotatably mounted relative to the turntable and having a pin 98 spring- biased downwards on to the plate 32. The ring 90 is rotated by an hydraulic piston-cylinder unit 116 to move the pin above the hole next to the one engaged by the locking-pin. When the turntable is raised, the locking pin 88 is disengaged to allow the unit 116 to index the table. The indexing pin 98 is pushed out of the hole by the locking pin as the turntable is lowered. The casting station 126, Fig. 2, comprises a lower mould 138 with a main cavity 139, runner 141 and four open-ended channels 142. The fingers 134 each have a T or dovetail sectioned slot into which the metal can flow so that the casting is supported by integral arms when the turntable is raised. An upper mould member or core may be used and a combination of pieces may be cast. The cast workpiece is indexed to a station between the casting and forging stations 126 and 128 for cooling. . The forging station 128 comprises an upper platen 145 with a die 144 moved by an hydraulic unit 149 and a lower die 152 mounted on a bolster 150. The bolster is mounted on a platen 154 which has arms 156 each with a sleeve 158 to allow raising and lowering of the bolster. The platen 154 is connected to table 174 by a pair of blocks 162, 166 pivoted to the platen 154 and the table 174. The table is moved horizontally by an hydraulic unit 192 to lower the lower die after forging. An ejector pin 214 is fixed to the bed 10 by rods 202 so that the workpiece is ejected as the die is lowered. The trimming station. Fig. 9 (not shown), comprises a pair of dies (217), (218) and a hollow table 215 to receive the forged parts. The scrap arms are ejected from the fingers 134 at a station 132 by a forked member (225), Figs. 10 and 11 (not shown), mounted on a bellcrank (228) moved by an hydraulic unit (248). A trough (252) on the bell-crank receives the ejected arms and deposits them into a bin upon further tilting of the bell-crank. The sequence of operation of the hydraulic units may be under manual or automatic control.
Patent GB-331883-A (GB)
Title: Improvements in the manufacture and production of aldehydes from alcohols
IPC: C07C45/00
Filed: 1929-04-11
Abstract: 331,883. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 11, 1929. Right to Patent relinquished. Hydrogen.-Aldehyde and hydrogen are produced catalytically by passing aliphatic alcohols over copper which has been prepared from its compounds by reduction at temperatures below red heat, and which is activated by an addition of oxides or phosphates or mixtures thereof, the catalyst being free from alkaline-reacting substances. Suitable activators include the oxides of chromium, manganese, magnesium and zinc, secondary sodium phosphate, tertiary barium phosphate &c. The temperatures used are at least 30‹ C. above the boiling point of the alcohol and usually range from 200‹ to 380‹ C. Slightly reduced or atmospheric pressure is employed. The dehydrogenation process may be combined with a hydrogenation of other bodies e.g. unsaturated bodies, crotonic or butyric aldehydes or acetone. Specification 2306/14. [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-315736-A (GB)
Title: Improved means for inflating pneumatic tyres
IPC: F04B33/00
Filed: 1928-04-17
Abstract: 315,736. Mitchell, J. April 17, 1928. Tyre valves. - A device for use in inflating pneumatic, tyres comprises a flexible tube, 1 having one end 2 adapted for connection to a pump 3 and having two or more branches 4 for the simultaneous connection to two or more tyres, each of which is provided with a manually-actuated valve. The pump or the part of the tube prior to the point where it branches is fitted with a non-return valve and with a pressure-gauge 5. The manually-actuated valves comprise a cap 10 provided with an offset aperture 11 and screwed on to the valve stem so as to co-operate with a centrally perforated washer 8 on the end of the stem. Leakage is prevented by a washer 12 held in a groove in the stem and engaging the cap. The cap may be extended to form a dust-cap, or a separate dust-cap may be fitted. The cap may be knurled to facilitate actuation or a pivoted handle may be provided and provision made for clipping it to the stem. In a modification, the 'top of the cap is made conical.
Patent GB-1072275-A (GB)
Title: Wide range frequency measuring device
IPC: G01R23/00
Filed: 1965-03-17
Abstract: 1,072,275. Selective signalling. BECKMAN INSTRUMENTS Inc. March 17, 1965 [April 9, 1964], No. 11258/65. Heading G4H. In a frequency measuring system the unknown frequency is mixed with a sequence of reference frequencies until a difference frequency within a desired range is produced which is then digitized by counting its cycles for an appropriate period. The count reached together with the value of the reference give the unknown frequency. The reference frequencies may be produced by a voltage controlled oscillator controlled either by a relay counter and a potentiometer or by a step-by-step motor and a potentiometer. The difference frequency is identified as being in the desired range by means of an appropriate filter. In a different use of the apparatus frequency analysis of an input signal can be effected by initially heavily attenuating the signal and then sweeping through the entire range of the reference frequencies, printing the value of any components that are detected, and repeating the process for successively smaller attenuations of the input signal. Ideally, the attenuation factor also would be printed.
Patent GB-1174108-A (GB)
Title: Spectrometer, particularly for Electronic Paramagnetic Resonance
Inventor: HEUER KLAUS
IPC: G01R33/60
Filed: 1967-03-10
Abstract: 1,174,108. Gyromagnetic resonance spectrometers. CARL ZEISS JENA, VEB. March 10, 1967, No. 11299/67. Heading G1N. In an electron paramagnetic resonance spectrometer comprising a frequency modulated U. H. F. source 1 and a reflection cavity resonator 17 for the sample being investiaged, the phase of the reference signals for two phase-sensitive rectifiers 21, 23 is automatically controlled by an electrically variable phase shifter 19 controlled by a signal obtained from the output of the phase-sensitve rectifier 23 via an amplifier 22 and a further phasesensitive rectifier 18. The output of phasesenstive rectifier 23 is also fed, via a switch 24, to a signal recorder, which is preferably digital, or, via a variable gain amplifier 20, to the cavity 17 for automatic bridge balancing. The phasesenstive rectifier 21 receives its reference signal via a 90 degree phase shifter 11 and its output is fed, via a variable gain amplifier 16, to stabilize the frequency of the U. H. F. source 1 to the resonance frequency of the cavity 17. A frequency conversion stage (not shown) may preceed the detection stage. In use, the resonance spectrum is repeatedly scanned and the individual spectra summed. In the intervals between scans, an automatic zero balance of the bridge takes place. Alternate scans may be in opposite directions. The magnetic field may be stabilized on a nuclear magnetic resonance line during the intervals between scans and by induction voltage stabilization during scans.
Patent GB-1425654-A (GB)
Title: Waveform generator
IPC: H03B27/00
Filed: 1973-03-08
Abstract: 1425654 Pulse and sinusoidal wave generators GENERAL ELECTRIC CO 8 March 1973 [8 March 1972] 11301/73 Heading H3T [Also in Division H2] An approximate sine wave is produced from two higher frequency "rectangular" waves having a difference frequency equal to the desired sine wave frequency and each rectangular wave being synchronized to a higher frequency clock, by integrating the difference between a first wave derived by a logic circuit producing an output when the two waves have the same level and a second wave which is the complement of this, one of the rectangular waves having a quiescent level dwell period during each transition so that the harmonic content of the sine wave is reduced. Dwell periods in one or both waves can provide trapezoidal and modified trapezoidal waves (full and dash lines of Fig 5, not shown) and if the dwell in one is preceded and succeeded by high frequency interruption of the wave (Fig. 4b) the harmonics are further reduced (dotted line, Fig. 5, not shown). The embodiment includes three integrators applied with the rectangular waveforms timed to provide three-phase outputs at a frequency of 400 Hz. Push-pull circuitry is used to reduce harmonics. The two waves 4(a) and 4(b), both having a dwell period, are derived by a logic circuit Fig. 6-I and Fig. 6-II (the latter not shown). To produce wave 4a the clock 1 is divided by 174 in dividers 36, 37 and 38 dividing respectively by 29, 3 and 2. By combining outputs, phase displaced pulses are produced at 50 and 52 and inverted forms of these at 51 and 53. The waves are subtracted in the succeeding circuit to provide wave 4a. Waves 4b is produced in a circuit comprising dividers 31, 32 and 33 dividing by 8, 11 and 2. At 70 the half clock frequency is gated out in bursts Fig. 8À70 and split into two portions at 72 by a gating wave from 71 (Figs. 8À71 and 8À72). The outputs from 33 and 73 are combined at 60-63 to produce erect and inverted waves 8À64 and 8À65 which when subtracted in the succeeding subtracting and integrating circuit provide wave 4b. The subtracting and integrating circuits (Fig. 6II, not shown) are separate for each of the three phases of the output waves and each comprises an R.C. circuit, and a differential amplifier, the final output being extracted via further R.C. filters (12, 13 and 14).
Patent GB-294685-A (GB)
Title: Improvements in water tube boilers
IPC: F22B37/26
Filed: 1927-04-28
Abstract: 294,685. Wood, W. R. April 28, 1927. Priming, preventing.-A boiler steam drum 12 is extended beyond the generating tubes 4, 6 and is fitted with transverse baffles 21 arranged like louvre slats through which the steam passes in a downward direction into the drum extensions before entering the steam outlet pipe 22. The tubes 4, 6 form the walls of the boiler furnace, and the steam drum is connected to a lower drum by downcomers 15 outside the furnace.
Patent GB-294922-A (GB)
Title: New azo dyestuffs and their application
IPC: C09B35/08
Filed: 1927-04-28
Abstract: 294,922. British Dyestuffs Corporation, Ltd., Baddiley, J., Chorley, P., and Brightman, R. April 28, 1927. Disazo dyes are obtained by coupling tetrazotized 2-nitro- or 2 : 2<1>-dinitrobenzidine with two molecular proportions of a 2 : 8-aminonaphthol sulphonic acid or an N-derivative thereof or with one molecular proportion of such acid or derivative and one molecular proportion of any coupling component. The products in some cases yield even dyeings on regenerated cellulose silk, and in some cases yield dyeings fast to milling on wool. The following examples are specified :- (1) a dyestuff yielding red shades on viscose silk and wool is obtained by coupling 1 mol. of tetrazotized 2-nitrobenzidine with 1 mol. of salicylic acid (alkaline coupling) and 1 mol. of 2 : 8 . 6-acid (acid coupling); (2) a dyestuff yielding yellow-brown shades on viscose silk and wool is obtained by coupling 1 mol. of tetrazotized 2- nitrobenzidine with 1 mol. of 1-(2<1> : 5<1>-dichloro- 4-sulpho) phenyl-3-methyl-5-pyrazolone (neutral coupling), and 1 mol. of 2: 8: 6-acid (alkaline coupling), and a dyestuff yielding redder shades is obtained from the same tetrazo compound with 2: 8: 6-acid and 1-(4<1>-sulpho) phenyl-3-methyl-5- pyrazolone ; (3) a dyestuff yielding maroon shades on viscose silk and copper-brown shades on wool is obtained by coupling 1 mol. of tetrazotized 2- nitrobenzidine with 1 mol. of naphthionic acid (faintly acid coupling) and 1 mol. of phenyl- 2 : 8 : 6-acid (alkaline coupling) ; (4) a dyestuff yielding violet-brown shades on viscose silk and wool is obtained by coupling 1 mol. of tetrazotized 2-nitrobenzidine with 1 mol. of 2:8:6- acid (alkaline coupling) and 1 mol. of resorcinol or m-phenylenediamine, a dyestuff yielding violet shades on viscose silk and wool by replacing the second coupling component by 1 : 4-naphtholsulphonic acid, and a dyestuff yielding claret shades on viscose silk and reddish-brown shades on wool by coupling the tetrazo compound with 2 mols. of 2 : 8 : 6-acid; (5) a dyestuff vielding yellow-brown shades on viscose silk is obtained by coupling 1 mol. of tetrazotized 2 : 2<1>-dinitrobenzidine with 1 mol. of salicyclic acid (alkaline coupling) and 1 mol. of 2 : 8 : 6-acid (alkaline coupling). A table is also given showing the shades on viscose silk with dyestuffs from tetrazotized 2-nitrobenzidine and various pairs of coupling components, other specified components being o- and p-cresotinic acids. 2 : 3-oxynaphthoic acid, benzoyl-2 : 8 : 6-acid, the glycine of 2 : 8 : 6- acid, ethyl-2: 8 : 6-acid. 2<1> : 4'-dinitrophenyl- 2 : 8 : 6-acid, 4<1>-chlorophenyl-2 : 8 : 6-acid, and m-xylyl-2 : 8 : 6-acid. 2-(4<1>-chlorophenyl)amino-8-naphthol-6-sulphonic acid is obtained by condensing p-chloraniline with 2 : 8 : 6-acid in presence of bisulphite.
Patent GB-1031140-A (GB)
Title: Preparation of ashless lubricant additives additives thus prepared and lubricants containing them
IPC: F02B3/06
Filed: 1965-03-17
Abstract: Additives for mineral or synthetic lubricating oils or for lubricating greases contain an oleophilic hydrocarbon chain and at least two polar groups and are obtained by reacting an olefine polymer which carries as substituents at least two succinic acid groups, succinic anhydride groups or succinic halide groups, with a polyhydric alcohol.  The polymer containing the succinic substituents may be obtained by reacting a chlorinated ethylene-propylene copolymer with maleic anhydride, or an isobutene-isoprene copolymer may be reacted with maleic anhydride.  The polyhydric alcohol preferably has at least three hydroxyl groups. Other additives such as antioxidants, detergent additives, viscosity index improvers, anticorrosives, anti-fouling agents, pour-point reducers and oiliness agents may be added to the lubricating oils.  In the example the additive consisting of the reaction product of chlorinated ethylene-propylene rubber treated with maleic anhydride and then with pentaerythritol is tested in diesel and gasoline engines using as the base oil a solvent-refined paraffinic lubricating oil distillate.ALSO:Ashless lubricating additives containing an oleophilic hydrocarbon chain and at least two polar groups are obtained by reacting a polyolefine which carries as substituents at least two succinic acid groups, succinic anhydride groups or succinic halide groups, with a polyhydric alcohol.  The polyhydric alcohol preferably has at least 3 hydroxyl groups and the preferred ones are pentaerythritol and mannitol.  To obtain a polymer carrying the desired succinic substituents the starting material may either be a homo- or copolymer in which active functions are present which render a reaction with maleic acid, anhydride or halide possible in such a way that a polyolefine is formed with the desired succinic groups, e.g. a chlorinated ethylene-propylene copolymer may be reacted with maleic anhydride or an isobutene-isoprene copolymer may be reacted with maleic anhydride. The esterification reaction with the polyhydric alcohol is preferably carried out at 100 DEG  to 250 DEG C.  In the example, a chlorinated ethylene-propylene rubber is treated with maleic acid and then reacted with pentaerythritol.
Patent GB-687272-A (GB)
Title: Concrete insert
IPC: E04B1/41
Filed: 1950-05-08
Abstract: 687,272. Concrete insert for attaching objects. ATTWOOD, C. W. May 8, 1950, No. 11405/50. Class 20(iv) A concrete insert 16 of the type used to facilitate the attachment of objects includes a rectangular channel member having anchor members in the form of tongues 18 punched out from one wall of the channel and extending outwardly with the outer ends 18A bent at right angles. The inserts are first placed in position in a conventional form and the concrete then cast around them. The edge portions of the channel are turned inwardly 17 and upwardly 17A and the free edges are sharpened. Sheet metal cover plates 19 with stiffening ribs 19A make a forced fit between the tongues 18 to cover the openings 18B formed thereby, and have short flanges 19B at the ends to fit into the openings and prevent lateral movement. A perforation 19c may be provided for the passage of a nail to secure the insert to the wooden form. The end closures 20 are U-shaped with wings 21 fitting into the troughs 17B in the channel 16, and upper face extensions 22. The insert is made in unit lengths and cut to size, and when a tongue 18 is not conveniently placed at the ends combined anchors and closing members 118 are used. Members 118 have wings 118A to fit into the troughs 17B and flanged portions 118D notched for nailing purposes.
Patent GB-416736-A (GB)
Title: Process and product for silvering
IPC: C23C18/16
Filed: 1933-04-19
Abstract: 416,736. Silvering. SIME, T., 14, Westmoreland Street, Crosshill, Glasgow. April 19, 1933, No. 11426. [Class 93.] A silvering-composition particularly for use on non-ferrous metals is prepared by dissolving silver in nitric or sulphuric acid, adding common salt to precipitate silver chloride, adding whiting, and mixing to the consistency of a paste. The article to be silvered is rubbed with the composition, one or more applications being made as required, is immersed in hot water, and is then polished, preferably with a soft cloth.
Patent GB-740125-A (GB)
Title: Reciprocating pumps
IPC: F04B1/16
Filed: 1954-04-21
Abstract: 740,125. Swash-plate pumps. NEW YORK AIR BRAKE CO. April 21, 1954 [June 29, 1953], No. 11471/54. Class 102(1). In a reciprocating pump, two blocks 15, 24 are secured in a casing and each contains a series of. parallel cylinders 21 in which reciprocate pistons 30 actuated by swash-plates 26, 27. A discharge chamber 35 is formed between the blocks 15, 24 and the pistons have axial bores in which are located tubes 33 joining .opposed pistons and having ports 34 open to the pressure in the chamber 35 so that this pressure acts on the pistons and keeps them in contact with the swashplates. Radial bores 32, connected to the axial bores in the pistons, are provided to lubricate the cylinder walls. Discharge valves 42 seat on the ends of the cylinders and slide in the tubes 33 and are loaded by springs 43. The inlet openings 11, 13 communicate with cylinder ports 22 by passages 23.
Patent GB-732974-A (GB)
Title: Improvements in root crop harvesting machines
IPC: A01D27/04
Filed: 1952-05-07
Abstract: 732,974. Root crop harvesters. RICHARDSON, G. W., BRIERLEY, T., and COURTLEY, A. Aug. 4, 1953 [May 7, 1952], No. 11478/52. Class 6 (3). A root crop harvester comprises crop lifting tools D which raise the crop to an arcuate passage formed by curved grids d<SP>3</SP> and d<SP>2</SP>, the crops being moved along the passage by a rotary spinner provided with tines d<SP>6</SP> which form the floor of the passage. An arm d<SP>9</SP> assists in lifting the crop into the passage. The spinner is driven through bevel gears d<SP>7</SP>, d<SP>8</SP> from a spindle a<SP>5</SP>. The machine is mounted alongside the tractor and is supported at the rear end by the tractor and by a road wheel A<SP>4</SP>. The machine is provided with topping mechanism as described and claimed in Specification 733,043.
Patent GB-1002583-A (GB)
Title: Improvements in or relating to fuel cells
IPC: H01M8/00
Filed: 1962-03-26
Abstract: 1,002,583. Fuel cells. LEESONA CORPORATION. March 26, 1962 [March 30, 1961], No. 11515/62. Heading H1B. To reduce the pressure differential across the gaskets separating adjacent bipolar electrodes of a fuel cell, the housing surrounding the electrodes is filled with an inert gas, e.g. nitrogen, which is preferably at a higher pressure than the fuel and oxidant. As shown in Fig. 1, a stack of bipolar assemblies 66 is mounted in a reinforced nickel tank 10 which is sealed at one end by an 0-ring 18 provided in a gland 12. Thermo-couples 48-50 pass through the gland to measure the temperature of the cell. The stack is insulated from the tank by a liner 62 and the left-hand end is electrically connected via a lead 57 to a cable 56 and the right-hand end is connected via lead 59 to the tank. Diametrically opposed inlet and outlet ports 28, 30 are provided for the electrolyte and communicate with axial passages formed in the stack of electrodes. An oxygen inlet and outlet 36, 38 and a hydrogen inlet and outlet 44, 46 are also provided. An inlet 60 is provided for the inert gas. Each bipolar electrode comprises (Fig. 3) an annular mount 68 to which electrodes 87, 89 are welded. A gas impermeable membrane 74 welded to the mount 68 separates the electrodes 87, 89. Each bipolar electrode has diametrically opposed hydrogen passages 76, 78, diametrically opposed oxygen passages 102, 104, and diametrically opposed electrolyte passages 88, 91. Adjacent bipolar electrodes are separated by annular gaskets 93 which also have hydrogen, oxygen and electrolyte passages therein. When assembled into a stack the various passages are axially aligned so that hydrogen may enter the spaces between membranes 74 and electrodes 87 via radial passages 80, 82, oxygen may enter the spaces between membranes 74 and electrodes 89, via passages 90, 100 and electrolyte may enter the space between adjacent bipolar electrodes through passages in the gaskets 93. The electrodes may be connected in series as shown or in parallel by insulating each of the electrodes 87, 89 from the mount 68.
Patent GB-734275-A (GB)
Title: Improvements in or relating to the manufacture of metal strip
IPC: B23K20/04
Filed: 1952-05-07
Abstract: 734,275. Coating with metals. BRENNAN, J. B. May 7, 1952, No. 11540/52. Class 82 (2). [Also in Group XXII] A method of bonding two dis-similar metal strips comprises heating adjacent faces while cooling the other faces, bringing the heated faces together and then applying pressure. Nickel powder is preferably heat bonded to the face of one strip before the strips are brought together. The upper surface of the strip of steel 1 is given a thin particle layer of nickel dust by an applicator 2 and is then heated by high-frequency coils 3 while the lower face is passed over a watercooled table 4. A strip of bronze 5 is cooled on one face by passing it around a water-cooled roll 9 and heated on its other face by highfrequency coils 3a and the two strips are then brought together under pressure between the roll 9 and table 4 with the heated faces in contact. The compound strip may then be consolidated by swaging devices 6 or by further rolls and is fed to a coiling-device 8 by sizing rolls 7. In a modification, Fig. 3, after passing the nickel applicator 22, the steel strip has applied to it for example by a spray gun 22a, a layer of metal to be bonded thereto, this layer being heated by high-frequency coils 23a and consolidated with the base strip by rolls 25.