baber/WOPTO huggingface dataset:
Patent GB-1206628-A (GB)
Title: Improvements in and relating to electrical control apparatus for machine tools
Inventor: BERGNER HORST
IPC: B23Q15/007
Filed: 1967-11-27
Abstract: 1,206,628. Honing. WERKZEUGMASCHINENFABKIK NAUMBURG VEB. 27 Nov., 1967, No. 53832/67. Heading B3D. [Also in Division G1 20 21 In an electrical control apparatus for the infinite adjustment of the limitation of the working travel of a tool carrier 1, each limitation point of the travel is associated with a resistance bridge 11, 12 connected to a null indicator 10, 13, the outputs of which are fed to respective store and erasure inputs 14, 15 of a store 16 which is followed in the circuit by an amplifier 17 for controlling the limitation adjusting member 18.  As shown, a tool carrier 1 of a honing machine is coupled for movement with a pair of sliders 2 of tandem potentiometers 3. Single potentiometers 4, 7 in the bridges 11, 12 are arranged in a control desk and are set manually to the required limitation points 5, 8. The tool carrier 1 is positioned outside the limits of travel for the starting position and upon commencing work, the potential of the bridge 11 causes the null indicator 10 to produce an L signal and the potential of the bridge 12 causes the null indicator 13 to produce an O signal. Since only an L signal at the store input 14 or 15 determines the switching condition of the store, the appearance of the L signal at input 14 causes an L signal to pass from the store to energize the limitation adjustment member 18 via the amplifier 17. The tool carrier then travels inside the limits of travel and moves the sliders 2. When the limitation point 5 is passed, the switching condition of the store 16 remains unchanged and the carrier travels onwards to pass limitation point 8 and cause an L signal to be delivered from the bridge 12 via null indicator 13 to erasure input 15 of the store, the output to the limitation adjusting member 18 changing to an O signal for reversing the movement of the carrier. Movement of the carrier back past the limitation point 8 does not change the switching condition of the store 16. When the sliders 2 pass the limitation point 5 in the reverse direction, a fresh L signal is delivered and the carrier is once again reversed. The process is repeated until the control apparatus is switched off, causing the tool carrier to return to its initial position. An additional control apparatus such as a programme control 20 or a position measurement system 21, may be plugged in at 19 to the inputs of the store 16 so as to automatically influence the working travel within the manually adjusted limits.
Patent GB-1203231-A (GB)
Title: Control of hydraulically operated equipment in underground mines
Inventor: MONKS HARRY
IPC: E21F17/00
Filed: 1966-12-02
Abstract: 1,203,231. Fluid logic and switching circuits; vacuum pumps. COAL INDUSTRY (PATENTS) Ltd. Dec. 1, 1967 [Dec.2, 1966], No.54032/66. Headings F1N and F1P. In a control system for hydraulically actuated apparatus comprising one or more electrically driven pumps each supplying fluid to said apparatus and also comprising pneumatic logical devices for controlling the supply of hydraulic fluid, a pneumatic control line 85 is provided with an exhausting device 300 which on removal therefrom of a control signal input at a port 206 and on application thereto at a port 207 of an opposed input applies suction to the output portion of line 85. In operation an air compressor 10 mounted on the main gate power pack P1 of an underground mine delivers through a regulator 17 to a low-pressure air-line 15 extending along the coal face through a series of manual onoff valves 18 and thence to a control box C and which on pressing a start button (not shown) in an air-line 102 issues a command signal through line 102, a reversing valve 301 when held in the position shown by air-pressure in a line 100 and an inlet airpressure line 106 connected through a regulating valve 108 and a manually open on-off valve 302 to the output portion of line 85. The latter terminates at a step up relay 88 which when opened connects a high-pressure air-line 16 to an air motor (not shown) mechanically coupled to the switch gear of the tail gate power pack P2. The device 300 comprises a cylinder 204 connected at one end ports 208 to a branch of line 85 and a piston 203 which is connected by a rod 202 to a double acting piston 200 within a cylinder 201 having a port 206 which when valve 301 is in the position shown is supplied with command pressure in line 102. Pistons 200, 203 are thus moved to the right and a pressure pulse is transmitted to line 85. Cylinder port 209 is open to atmosphere whilst port 207 is vented only when valve 301 is in the position shown. To close the relay 88 and to evacuate line 85, a stop button (not shown) in line 100 is pressed resulting in reversal of valve 30. Pressure in line 102 is thus transmitted through the valve to line 110 and port 207 thereby closing valve 302 and moving connected pistons 200, 203 to the left. The resulting expansion of chamber 204 serves to evacuate line 85.
Patent GB-1079790-A (GB)
Title: Composite filaments of linear polyamides
IPC: D01F8/12
Filed: 1965-12-21
Abstract: A random copolyamide consists of at least 20% by weight of polyhexamethylene adipamide units and at least 20% by weight of units of at least two of polyhexamethylene sebacamide, dodecanamide, undecanamide, and isophthalamide. In an example, the copolymer is prepared by heating an aqueous solution of the corresponding diamine-dicarboxylic acid salts containing TiO2.  In a control example a copolymer is prepared by heating an aqueous solution containing TiO2, hexamethylene diamine adipate and hexamethylene diammonium sebacate.ALSO:Composite filaments or monofilamentary yarns consist of two continuous adherent eccentrically arranged components consisting of synthetic linear polyamides, in which one component consists of a crystalline homopolyamide and the other component consists of a random copolyamide consisting of at least 20% by weight of polyhexamethylene adipamide units and at least 20% by weight of units of at least two of polyhexanethylene sebacamide, dodecanamide, undecanamide, and isophthalamide.  The copolyamide component preferably contains 30 to 70% by weight of polyhexamethylene sebacamide units or at least 10% by weight of polyhexamethylene dodecanamide units.  The term "eccentrically arranged" is meant to include both side-by-side and truly eccentric sheath-core structures. In the example, an eccentric sheath-core monofil is formed using as the sheath polyhexamethylene adipamide (6-6 nylon) of relative viscosity about 46 and as the core a copolymer consisting of 50% by weight polyhexamethylene adipamide, 41% polyhexamethylene sebacamide, 8% polyhexamethylene dodecanamide and 1% polyhexamethylene undecanamide.  The homopolymer and the copolymer both in flake form are conditioned by exposure to humidifi nitrogen at 125 DEG C and melt spun at 290 DEG C and 282 DEG C melt temperature respectively to form eccentric sheather-core hosiery monofils containing equal amounts of the copolymer and homopolymer.
Patent GB-1403598-A (GB)
Title: Conveyor and tow cart therefor
IPC: B61B10/04
Filed: 1972-11-27
Abstract: 1403598 Conveyer systems SEATECH ENG Inc 27 Nov 1972 [26 Nov 1971] 54693/72 Heading B7L A tow cart 10 for a tow line conveyer having a powered conveyer chain 146 with driving dogs 148 thereon comprises a load carrying body 12, a tow pin 46 having a free end movable between a driven position in which it is engaged by a dog 148 and a non-driven position in which the free end is raised just clear of the dogs 148, the pin 46 being mounted for free rotation in a sleeve 75 having permanently secured thereto transverse upper and lower sleeves supporting shafts 84, 94, the shaft 84 being connected by links 86, 88 to a shaft 90 on the body 12 and the shaft 94 to a shaft 102 on the body by links 100 the mounting being such that the pin 46 moves in an are of a circle between the driven and non-driven positions, as illustrated by the dotted line positions in Fig. 4, so that driving forces imparted by the dogs 148 will either bias the pin towards or away from the chain 146 depending whether the free end of the pin is disposed below or above the medial position d shown in Fig. 4, thus helping to maintain the pin in engagement with the chain or aiding positive disengagement therewith. Collars 76, 78 on the pin 46 retain it in the sleeve 75 and in the driven position the links 100 extend horizontally and the links 86, 88 which are shorter than the links 100 extend forwardly and downwardly relative to the horizontal. A bumper 44 is carried at the front of the body 12 on brackets 60 pivotally mounted on a shaft 62 and coupled by way of a link 108 to the link 88 so as to raise the pin 46 to its non-driven position when the bumper 44 contacts an actuating element 32 on the rear of a preceding cart 10, an angular recess 72 in the brackets 60 resting on the element 32 when this occurs. A stop element 54 limits movement of the brackets 60. At positions where it is desired to maintain the pin 46 in engagement with both driving and holdback dogs 148, 150 of the chain, e.g. on inclines, a cam element 138 is provided and this engages a portion 120 of a dog 118 mounted on the shaft 94 to move it to the dotted line position shown in Fig. 4, wherein an arcuate surface 122 thereof will engage a fixed stop 132 to prevent movement of the pin 46 from its driven position. Laterally projecting lugs 104 (Fig. 1) are provided on the links 100 to engage with ramps to raise the pin 46 to its non-driven position at zones where it is desired to disconnect the drive to the cart 10, a slot 116 in the link 108 allowing the pin 46 to be raised without movement of the bumper 44. The cart runs on castors 20 and wheels 22 along a floor 134 and the cart is guided by the pin 46 engaging in a slot 136 in the floor above the chain 146 with the pin in both its driven and non-driven positions. However, a toggle clamp 144 is provided on the cart 10 connected to the link 88 by a cable 140 and movement of this toggle clamp raises the pin 46 to a further raised position in which it is clear of the slot 136 so that the cast can be moved freely by hand.
Patent GB-1202940-A (GB)
Title: Improvements in or relating to information transfer circuit arrangements
Inventor: KRAUSE CHRISTIAN
IPC: H03K3/286
Filed: 1967-12-01
Abstract: 1,202,940. Digital transfer circuit. GRUNDIG E.M.V. ELEKTRO-MECHANISCHE VERSUCHSANSTALT, INH MAX GRUNDIG. 1 Dec., 1967 [3 Dec., 1966], No. 54886/67. Headings G4A and G4C. [Also in Division H3] When the base of a single transistor is marked its emitter and collector effect transfer of binary information from one stage of a counter to the corresponding stage of a store. When the base of T2 is unmarked stage T1 of the counter is isolated from the corresponding stage comprising T3, T4 of the store. When a count has been completed potential is applied at S. If terminal A of the counter stage T1 is at O the combined voltage U1 + U2 is such as to cut-off T3 and therefore the opposite conductivity type T4 and O appears at terminal A<SP>1</SP>. If, however, A is at 1 then current through the base-collector circuit is joined by current through the emitter-collector circuit to turn T3 and T4 on, so that 1 appears at A<SP>1</SP>. In the case of higher voltage conditions in the counting circuit a diode (D3) may protect T2 (Fig. 3, not shown).
Patent GB-1423755-A (GB)
Title: Catalyst for the production of acrylonitrile acrylic acid and acrolein
IPC: C07C45/34
Filed: 1973-11-27
Abstract: 1423755 Acrylonitrile; acrylic acid; acrolein SOC KALIANA RESINE SIR SpA 27 Nov 1973 [30 Nov 1972] 54944/73 Heading C2C [Also in Division B1] Acrylonitrile, acrylic acid and/or acrolein are produced by the vapour phase catalytic oxidation or ammoxidation of propylene and/or acrolein in contact with a catalyst consisting of a mixture of Ag 2 O and MoO 3  in the molar ratio 0À1 to 2À0 : 1 using a gaseous mixture comprising molecular oxygen and propylene for the production of acrolein, molecular oxygen and propylene and/or acrolein for the production of acrylic acid, and molecular oxygen, ammonia and propylene and/or acrolein for the production of acrylonitrile. The specified reaction conditions include (i) for oxidation of propylene to acrolein, a silver oxide to molybdenum oxide mole ratio of 0À25 to 0À50, a temperature of 300-450‹C., a pressure of 1 to 3 atm. and a contact time of 0À1-10 sees.; (ii) for oxidation of propylene and/or acrolein to acrylic acid, a silver oxide to molybdenum oxide mole ratio of 0À5 to 1, a temperature of 300-450‹ C., a pressure of 1 to 2 atm. and a contact time of 0À1 to 10 sees.; (iii) for ammoxidation of propylene to acrylonitrile, a silver oxide to molybdenum oxide mole ratio of 0À5 to 1, a temperature of 360-450‹ C., a pressure of 0À1 to 3 atm. and a contact time of 1 to 10 secs.; and (iv) for the ammoxidation of acrolein to acrylonitrile, a silver oxide to molybdenum oxide mole ratio of 0À25 to 0À50; a temperature of 360-450‹ C., a pressure of 0À1 to 3 atm. and a contact time of 1 to 10 sees.
Patent GB-1262388-A (GB)
Title: Liquid flow metering
IPC: C23C14/24
Filed: 1969-11-11
Abstract: 1,262,388. Valves. REPUBLIC STEEL CORP. 11 Nov., 1969 [25 Nov., 1968], No. 55181/69. Heading F2V. [Also-in Division C7] A valve, which is suitable for controlling the flow of hot and corrosive liquid metals, comprises a U-shaped frame 8, a body member 7 which is secured to the frame as by bolts 19 and which has extending therethrough a passage 14, and a valve member 9 which is retained between members 8 and 9 by means of a flange 17, is manually rotatable as by a handle 11, and has extending diametrically thereacross a slot 18, the degree of relative registration between slot 18 and passage 14 determining the amount of liquid metal which can pass through passage 14. The frame, body member and valve member are all made from refractory material such as graphite.  The valve may be used in an apparatus (Fig. 1, not shown), for vapour depositing of a layer of zinc on a steel substrate. When so used, the valve is immersed in a heated reservoir of zinc and has connected to one end of passage 14 a pipe (4) which leads to a heated vacuum chamber (5), the amount of zinc entering the other end of passage 14 and subsequently passing to the vacuum chamber being dependent upon the setting of the valve. Ingress of air into the vacuum chamber is prevented by locating the valve below the level of liquid zinc, and wetting of the valve component parts is obviated if the zinc is maintained at a temperature of between 788‹ and 1200‹ F. The vacuum chamber is maintained at a pressure of 10<SP>-3</SP> and 10<SP>-4</SP> millimeters of mercury.
Patent GB-1417289-A (GB)
Title: Apparatus for mixing gaseous flows
IPC: F24F13/04
Filed: 1973-11-28
Abstract: 1417289 Mixing gases SULZER BROS Ltd 28 Nov 1973 [28 Nov 1972] 55190/73 Heading B1C [Also in Divisions F2 F4 and G3] In an apparatus, such as a ventilating device, for mixing two gaseous flows in a variable ratio and varying the total rate of flow, a proportioning valve comprises a control element, spool 11, which is moved by drive means such as hydraulic cylinder and piston 7, to mask portions of a perforated screen 26 of a hollow cylinder 12 into which are fed the two gases such as hot and cold air, via inlets 4 and 5, so that by progressively covering and uncovering portions of the screen a variable flow ratio of the gases passes into mixing chamber 13. In moving the spool 11 from left to right in the drawing the mixture changes from totally hot air to totally cold, although the total flow rate is unaltered, after which the spool passes into a second part of its range in which the screen is completely uncovered, see Fig. 2, whereby the flow of cold air is increased to a higher rate than before. The total flow passes from chamber 13 through a flow regulator valve comprising an adjustable spring loaded restrictor member 15 cooperating with a throat 14 which is movable against a spring 22 by piston rod 10 acting through collar 18 and throat support 19 when the spool 11 moves into the second part of the range thereby opening the valve further. The device may also include thermal and acoustic insulation 2, 3 and a silencer 24.
Patent GB-1079130-A (GB)
Title: A rotary oscillator
Inventor: SCHAEFER EBERHARD
IPC: F16H27/04
Filed: 1965-12-30
Abstract: 1,079,130. Balances. KIENZLE UHRENFABRIKEN G. m. b. H. Dec. 30, 1965, No. 55205/65. Addition to 1, 020, 977. Heading G3T. [Also in Division F2] A rotary oscillator for driving a ratchet wheel comprises a staff with a stepping device having stepping projections 1, 2 for stepping the teeth of a ratchet wheel onwards, a single safety collar 3 connected at its ends to the projections 1, 2 and adapted to prevent the ratchet wheel from slipping when it is not being stepped, and spacing projections 4, 5 for moving the teeth of the ratchet wheel onwards by an amount such that they come to rest out of contact with the safety collar 3. Preferably the oscillator is made of injection moulded synthetic plastics material.
Patent GB-1453602-A (GB)
IPC: G01N21/05
Filed: 1973-11-28
Abstract: 1453602 Measuring the turbidity of different fluids GAM RAD Inc 28 Nov 1973 [14 Dec 1972] 55255/73 Heading G1A [Also in Division G2] In a device, Fig. 1, for measuring the turbidity of a fluid flowing through a tube 16 (by attenuation or scattering) at least two windows, the distance between which may be varied to accomodate different types of fluid, are provided in the tube. One window is associated with a light source 33 and the other window is on a slidable tube 49 that has a photo-resistor or the like 87 at one end so that the photo-resistor can receive light that has been attenuated by the fluid. In another embodiment Fig. 5, two sets of opposite sources 32a, 32b are used and both the sources as well as the detectors are associated with slidable tubes for varying the path length of the light through the fluid.
Patent GB-1371077-A (GB)
Title: Apparatus for obtaining statistical indices relating to particle size and analysing the same and method
Inventor: COULTER W H
IPC: G06G7/75
Filed: 1971-11-29
Abstract: 1371077 Particle analyzing apparatus COULTER ELECTRONICS Ltd 29 Nov 1971 [2 Dec 1970 23 Aug 1971] 55366/71 Heading G1N In a particle analyzing apparatus such as a Coulter counter a statistical index of an unknown sample is compared by division with the stored value of the same index of a known sample measured with the same apparatus. Blood cells may be analyzed by applying the pulses derived from the Coulter counter to three percentile discriminator circuits 2, 3, 4 the output voltages <SP>e</SP>75, <SP>e</SP>50 and <SP>e</SP>25 of which are proportional to the number of pulses in the three percentiles 75, 50 and 25. In order to obtain the coefficient of quartile variation (C.Q.V.), which is a measurement of dispersion, dividing circuit 12 divides the difference between <SP>e</SP>7.5-<SP>e</SP>25 obtained in network 9 by the sum of <SP>e</SP>75 + <SP>e</SP>25 obtained in network 8, the output voltage being applied to terminal C of switch SW1 where it can be read out. The C.Q.V. is first measured on a known sample and stored in potentiometer 22 by adjusting the slider until a null is indicated at 38 between the measured C.Q.V. voltage and the slider voltage. The unknown sample is then substituted for the known sample and the C.Q.V. measured again, the value being fed to dividing circuit 25 where it is divided by the stored value on potentiometer. The ratio of the two indices is applied to terminal f of switch SW1 from whence it may be read out. A similar procedure is carried out for coefficient of skewness S.K. indicative of the symmetry of the curve using dividing circuit 17 and amplifier 33 to operate on the output voltages of the three percentile discriminators. The value of S.K. of the known sample is applied to terminal b of SW1 and stored in potentiometer 21 Division of the known and unknown S.K. values is made in circuit 24 and the resultant applied to terminal e of switch SW1, The mean particle volume MPV or in the case of blood mean cell volume MCV is obtained at circuit 19 and MPV, MCV of the known sample stored in potentiometer 20. The known and unknown values are divided in circuit 23 and the ratio applied to terminal d of SW1 for read out.
Patent GB-1367624-A (GB)
Title: Corner-piece for inter-connecting doorway architrave strips
IPC: E06B3/964
Filed: 1970-11-26
Abstract: 1367624 Frame corner joint R BOOMER 24 Nov 1971 [26 Nov 1970] 56199/70 Heading E1J Adjacent elongate frame members forming a corner are each inserted into a respective slot 15 in adjacent sides of a unit 10, the lower surface of each slot being extended to form a tongue 16 which, in use, is located behind each respective frame member. The unit may be used in a door frame. Glue, screws and nails are not used to retain the frame members in the unit. Specification 1,301,096 is referred to.
Patent GB-1287780-A (GB)
Title: Control arrangement for apparatuses operating in parallel
IPC: G06F1/04
Filed: 1969-11-17
Abstract: 1287780 Pulse and switching circuits TELEFONAKTIEBOLAGET L M ERICSSON 17 Nov 1969 [15 Nov 1968] 56230/69 Heading H3P [Also in Division G4] Apparatus, e.g. two computers A and B, to be operated in parallel, are supplied with clock pulses from an oscillator 1 via a circuit comprising AND gates 4, 5 and a bi-stable device 6 arranged so that, if a fault is detected in the pulse train, a second oscillator 1a is substituted for the first. In the embodiment two computers A, B are operated in parallel and synchronism from the single pulse train. The oscillator 1 is followed by an emitter follower 2 to produce square pulses which are amplified at 3 and applied directly to one input a of AND gates 4, 4a. Oscillator 1a is similarly connected to AND gates 5, 5a. The other inputs to the AND gates are connected as shown to the bi-stable devices 6, 6a which are initially set to the 1 (or 0) state by a signal on line "oscillator 1 (or 1a)". The pulses are also applied to an amplifier 71 and integrator 72 and, inverted, to another amplifier 73 and integrator 74. If the pulse length or spacing exceeds predetermined limits the voltage output from integrator 72 or 74 exceeds the triggering point of a Schmitt trigger or differential amplifier 76 which changes over the bi-stable device 6 (and similar for 6a). Signals can be applied on lines 11, 12 which lengthen the pulses or spaces to test the system.