baber/WOPTO huggingface dataset:
Patent GB-1095536-A (GB)
IPC: H03D13/00
Abstract: 1,095,536. Phase discriminators; transistor pulse circuits. INTERNATIONAL STANDARD ELECTRIC CORPORATION. April 29, 1966 [April 30, 1965], No. 18863/66. Headings H3A and H3T. A phase discriminator comprises a circuit to which is fed a series of digital pulses and a reference signal from a local oscillator. The circuit develops a signal having one or other of two discrete values, and of varying duration, depending on the relative phases of the input signal. The output from the circuit is integrated and the resulting signal is used to control the phase of the oscillator. Alternate pulses in the digital signal are of opposite polarity and the reference signal is a square wave varying between ŒV. In the circuit shown, the signals are applied respectively to E1, E2. When both signals are positive transistors 51, 52 are blocked, and when both are negative transistors 61, 62 are blocked, so that a current I1 or I2 flows in transistor 53 or 63. At other times no current flows. Capacitor 50 therefore changes in one direction or the other for a period dependent upon the period during which the input signals are in phase, the potential VS developed across the capacitor controlling the oscillator.
Patent GB-1226330-A (GB)
IPC: A24F15/00
Filed: 1967-12-28
Abstract: 1,226,330. Box for dispensing articles. H. J. COLES. 30 Dec., 1968 [28 Dec., 1967], No. 58907/67. Heading B8P. A container permits access successively to enclosed articles at intervals that are predetermined by a spring-operated timing device. In the embodiment shown a strip 22 is gradually withdrawn to allow successive cigarettes 20 to be pushed by springs 21 out of holes 24 in a plate. The strip 22 is withdrawn by a drum 17 driven by a coiled spring 15 at a speed determined by adjustment of a braking mechanism 18 coupled through gearing to the drum. Alternatively the strip 22 is resilient and provides the driving power to wind itself on to the drum 17.
Patent GB-1230288-A (GB)
IPC: C07C29/132
Filed: 1969-03-21
Abstract: 1,230,288. Dodecanedioic acid - 1,12. HALCON INTERNATIONAL Inc. 21 March, 1969 [21 March, 1968], No. 14993/69. Heading C2C. Dodecanedioic acid - 1,12 is prepared from 1,5,9 - cyclododecatriene by epoxidizing with an organic hydroperoxide to 1,2 - epoxy - 5,9 - cyclododecadiene followed by (1) hydrogenating to cyclodecanol which is oxidized to the acid, (2) hydrolysing to the glycol which is hydrogenated to cyclododecanediol and oxidized to the acid or (3) hydrogenating to epoxycyclododecane which is hydrolysed to saturated glycol or isomerized to cyclododecanone, followed by oxidation to the acid. Hydroperoxides are listed for the epoxidation and catalysts may be present. Hydrogenation catalysts such as nickel cobalt and palladium may be used and the alcohols may be oxidized using nitric acid, potassium dichromate or molecular oxygen.
Patent GB-1230840-A (GB)
IPC: C07C69/82
Filed: 1968-12-16
Abstract: 1,230,840. Terephthalic acid esters. FARBWERKE HOECHST A.G. 16 Dec., 1968 [15 Dec., 1967], No. 59795/68. Heading C2C. Compounds of the formula where R is H, alkyl of 1-6 carbon atoms or #-hydroxyethyl are prepared by reacting ethylene oxide with terephthalic acid and/or a monoalkyl ester thereof in which the alkyl group contains 1-6 carbon atoms in the presence of a sterically hindered tertiary amine capable of forming a salt with the terephthalic acid or the monoalkyl ester thereof and serving as catalyst.
Patent GB-1232067-A (GB)
IPC: B60T13/52
Filed: 1968-07-18
Abstract: 1,232,067. Valves; brake servomotors. BENDIX CORP. 18 July, 1968 [3 Aug., 1967], No. 34271/68. Headings F2F and F2V. [Also in Divisions G2-G3] In a vacuum-suspended brake servomotor 10 having a hollow-up control valve in extension 68 of piston 34, the valve comprises a moving seat 72, 82 movable axially under the control of; pedal 22 and rod 26 and co-operable with poppet 90 which, in turn, co-operates with fixed seat 66; the assembly being characterized in that the poppet 90 carries a universally pivotable ring 98 sealed at 99 and engageable with the moving seat. Alternatively, or additionally, a similar ring may be mounted in or around the end of the moving seat to co-operate with the poppet. Return spring 102 may alternatively be located between moving seat 72 and the left-hand end of the chamber.
Patent GB-1232960-A (GB)
IPC: C07C45/51
Filed: 1968-06-13
Abstract: 1,232,960. Terpenic alcohols. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH and F. H. FIRMENICH, [trading as FIRMENICH & CIE]. 13 June, 1968 [14 Dec., 1967], No. 55515/70. Divided out of 1,227,243. Heading C2C. The novel compounds sec-ocimenol (cis- and trans-isomers) and sec-myrcenol of formulµ respectively, are prepared by reacting ocimene epoxide (cis- or trans-) with an acid or myrcene epoxide with a base (e.g. metal dialkylamides).
Patent GB-1234459-A (GB)
IPC: H03F1/42
Filed: 1968-09-20
Abstract: 1,234,459. Transistor amplifier circuits. KEITHLEY INSTRUMENTS Inc. 20 Sept., 1968 [26 Sept., 1967], No. 44745/68. Heading H3T. A transistor amplifier comprises an insulated gate field effect transistor, a pair of oppositely biased semi-conductor junctions connected in series with each other to the input of the transistor for by-passing from the latter excessively high input signals, and means coupled to the output of the transistor to minimize the voltage across the junctions and hence the input leakage current through them. In the figure a first voltage amplifier comprises FETs Q5 and Q6 protected against high input signals by emitter coupled transistor pairs Q1, Q2 and Q3, Q4 having open circuited collectors with their base/ emitter paths connected in series across the respective inputs 10, 11. A high positive input at 11 sees a high impedance path via Q5 and a relatively low impedance path via forward biased Q3 and reverse biased Q4, which passes Zener breakdown current, through resistors 53a, 54 to the negative terminal 26. A high negative input at 11 results in Zener breakdown of Q3, the path being through Q19 which can saturate, to the terminal 21. Similarly Q1, Q2 by-pass any high input signals on input 10. The leakage current through the by-pass circuits is not high under normal common mode signal conditions as the voltage at 53 follows the common mode input signal due to the combined effects of the constant current source transistor Q18 and transistor Q19 in emitter follower configuration. The output of the first voltage amplifier is connected to a second voltage amplifier, Q7, Q8 a current amplifier Q 11, Q12 and a third voltage amplifier Q13, Q14 supplying an emitter follower transistor Q 15 and push-pull output transistors Q16, Q17. Feedback is provided from the output 39 of Q13, Q14 to a constant current source control transistor Q9 via transistor Q10. Compensating capacitors 42, 43, 52 are connected to prevent oscillatory conditions in the amplifier.
Patent GB-1238284-A (GB)
IPC: B65G33/04
Filed: 1967-10-27
Abstract: 1,238,284. Screw conveyer for lowering bottles &c. BAR EQUIPMENT & REFRIGERATION CO. Ltd. 28 Oct., 1968 [27 Oct., 1967], No. 49016/67. Heading B8A. Empty bottles from floor 26 are inserted by hand into the top portion of vertical screw 1 so as to rest on plate 13 pivoted at 14, the plate 13 being appropriately displaced by cam 17 to allow the bottle to fall on to plate 18 fixed to screw 1. The bottle then falls on to the screw itself, being guided thereby down to the bottom where cam 20 guides the bottle on to platform 22 and thus into tray 19, past spring fingers (not shown). Screw 1 (Fig. 3).-The screw may be formed as a plurality of identical end-to-end plastic segments 28, each of which has protrusions 30, 31 which mate with corresponding cavities 29, 32 (not shown) to make the completed screw.
Patent GB-1238662-A (GB)
IPC: H01R39/04
Filed: 1968-08-30
Abstract: 1,238,662. Injection moulding. INTERELECTRIC SACHSELN A.G. 30 Aug., 1968 [15 Sept., 1967], No.41432/68. Heading B5A. [Also in Division H2] In a commutator for a miniature motor comprising segments 8 and connecting tags 9 formed of bent wire embedded in plastics material, the segments are stressed towards the commutator axis. Fig. 1 shows a two-part mould 1, 11 containing a core 6 in which the segments are located prior to injecting the plastics material through a conduit 13. Pins 16 on the part 11 align the, two parts of the mould and hold the tags 9 against part 1 so that the segments are urged radially inwardly of the cores the angle between the tags and segments being slightly greater than 90 degrees. The plastics material forces the segments into engagement with the wall of the core and when set retains them in this stressed condition.
Patent GB-1250574-A (GB)
IPC: B23Q3/157
Filed: 1969-05-30
Abstract: 1,250,574. Tool changers; boring machines. LUDWIGSBURGER MASCHINENBAU G.m.b.H. 30 May, 1969 [1 June, 1968], No. 27480/69. Headings B3B and B3C. A programme controlled machine tool includes a headstock 24 movable on a base; a tool conveyer mechanism comprising an endless conveyer; a tool selection device mounted on the headstock for movement therewith, the said device including drive means for moving the conveyer relative to the headstock to bring a selected tool to a transfer position; detecting means to detect when a selected tool is in the transfer position, and a looking device to lock the conveyer and headstock against relative movement when the selected tool is in the transfer position; transfer means to transfer the selected tool from the transfer position to the tool holding spindle; and fine adjustment means allowing relative movement between a part of the conveyer carrying the tools and the remainder of the conveyer after the selected tool has been detected to enable the selected tool to be accurately positioned in the transfer position before the locking device locks the said part and headstock against relative movement, the drive means including means to prevent relative movement between the headstock and the said remainder of the conveyer. The headstock 24 is movable vertically along a column 10, a chain conveyer 30 carrying tools 42 in carrier 36 is mounted on the side of the column 10 and its driving mechanism 48 is mounted in a housing 50 on the side of the headstock 24. The driving mechanism 48 operates through an irreversible worm drive 56 and sprocket to a drive chain 52 so that when switched off the sprocket acts as a drive member to move the chain 52, and hence the chain conveyer 30, in synchronism with movement of the headstock. To move the chain conveyer 30 relative to the headstock 24 during movement of same, the driving mechanism 48 is activated. The drive from the chain 52 to the conveyer 30 passes through a disengageable reduction gear 54 to ensure that the speed of the chain conveyer is the same as the speed of the headstock when the driving mechanism 48 is switched off. The tools 42 are held in holders having coded rings engaged by elements to enable a required tool to be selected by the programme control means for transfer to the spindle 26 by a transfer device (not shown). At a required position the chain conveyer 30 is locked by a locking pin operated by a device 46, the locking pin having a tapered end and the chain conveyer 30 being allowed to move relative to the chain 52 to facilitate the fine adjustment.
Patent GB-1251513-A (GB)
IPC: G03C1/74
Filed: 1968-10-28
Abstract: 1,251,513. Coating sheet material. EASTMAN KODAK CO. 28 Oct., 1968 [30 Oct., 1967], No. 51054/68. Heading B2E. A web consisting of at least two lengths of material joined end to end by a spliced joint is coated by forming or treating the joint so as substantially to prevent air from being entrained in the coating material. The spliced joint may be formed from a splicing tape which has its downstream edge bevelled or the downstream edge of the tape and the adjacent web surface may be treated to form a tapered transition, which may be filled with oilyhydropholeic material or rubber cement. The spliced joint may be treated by a coating not easily wetted by the coating material, such as felt-tipped marker pen solution, an oily material, such as a solution of oil and methyl ethyl ketone and rubber cement.
Patent GB-1252320-A (GB)
IPC: C07D453/02
Filed: 1969-06-20
Abstract: 1,252,320. Dibenzazepine derivatives. SOC. GENERALE DE RECHERCHES ET D'APPLICATIONS SCIENTIFIQUES. 29 May, 1970 [20 June, 1969], No. 31241/69. Heading C2C. Novel compounds of Formula I in which each of X 1  and X 2  is H, halogen or C 1-4  alkyl and x is 0 or 1 when the -(CH 2 ) x - group is attached to the 3-position of the quinuclidine ring and is 1 or 2 when the -(CH 2 ) x - group is attached to the 2-position of the quinuclidine ring, and their acid addition, and quaternary salts, are prepared by reacting a compound of the Formula II with a compound of Formula III in which Z is a halogen atom or reactive ester radical. 2 - (2 - Chloroethyl) - quinuclidine hydrochloride is prepared from 2-chloromethyl-quinuclidine (itself obtained from the hydrochloride) via the following intermediates 2-cyanomethyl-quinuclidine hydrochloride, 2 - carboxymethylquinuclidine hydrochloride, 2 - ethoxycarhonylmethyl - quinuclidine hydrochloride, 2 - ethoxycarbonylmethyl - quinuclidine and 2 - (2 - hydroxyethyl) -quinuclidine. Pharmaceutical compositions having spasmolytic, antihistaminic, anticholinergic and antidepressant activity comprise one or more of the above novel compounds and a pharmaceutical carrier. The compositions may be administered orally, parenterally or rectally.
Patent GB-1252982-A (GB)
IPC: A22C21/00
Filed: 1969-02-24
Abstract: 1,252,982. Trussing poultry. P. L. STOCKDALE. 22 May, 1970 [24 Feb., 1969], No. 9703/69. Heading A2U. A clip of spring or stainless steel wire for trussing poultry comprises a cross-piece 3 adapted to lie under the body of a fowl near the head end, limbs 1, 2 adapted to pass on either side of the body to trap the upper joints of the wings and to lie under the legs, inwardly curved parts 8, 9 to pass over the legs near the knuckles, and ends formed as loops 10, 11 to bear against the body of the fowl.
Patent GB-1253001-A (GB)
IPC: B01D25/127
Filed: 1970-01-28
Abstract: 1,253,001. Filter press. K. I. KURITA. 28 Jan., 1970, No. 4106/70. Heading BID. A filter press comprises alternate plates 1 and frame units 2, each frame unit comprising two sections hinged together at 15 so as to open out when the plates 1 are moved successively rightwards to discharge filter cake from the frame interiors 18. The lower ends of the frame sections are hingedly connected in various ways to the adjacent plates 1. Plates 1 run along press side bars 4. In Fig. 4 (not shown) the lower ends of the frame sections have supporting rollers running on separate side bars (21), and each side of each filter plate 1 is fixedly covered with filter cloth 6. In other embodiments, including Fig. 1, a single length of filter cloth is wound in zigzag fashion round hinges 15, rollers 14 and between succesive plates and frame units. A length of cloth is replaced by joining a new length to one end and winding the old length out. In Fig. 7 (not shown) an endless band of cloth 6 passes from the plates and frame units through a washing vessel with sprays and round a hydraulically movable tension roller mounted on the movable end plate of the press. The band is moved by hand or a motor.
Patent GB-1264394-A (GB)
IPC: C07C69/155
Filed: 1969-10-17
Abstract: 1,264,394. Allyl acetate. BP CHEMICALS Ltd. 16 Sept., 1970 [17 Oct., 1969], No. 51093/69. Heading C2C. Allyl acetate is made by reacting in the gaseous phase a mixture of ethylene and propylene with O 2  at 160-200‹ C. over a catalyst comprising palladium metal and an acetate salt (of, e.g., an alkali metal, chromium or cobalt) deposited on a support (e.g. heat treated alumina) in the presence of a gaseous diluent (nitrogen, argon, or steam) which is inert under the reaction conditions.
Patent GB-1288383-A (GB)
IPC: H02H9/00
Filed: 1969-01-28
Abstract: 1288383 Semi-conductor diode circuits DAVY & UNITED INSTRUMENTS Ltd 16 Jan 1970 [28 Jan 1969] 4554/69 Heading H3T [Also in Division G1] A barrier device suitable for protecting a hazardous environment from electrical danger comprises an enclosure 7 within which a first path of low impedance interconnects input and output terminals 5<SP>1</SP>, 8<SP>1</SP> and a second path connects the first path with a third terminal 10<SP>1</SP>, the second path including at least one antiparallel pair of semi-conductor diodes 13 other than of the Zener type which present a high impedance for signals below a predetermined level and a low impedance for signals above that level. The device is for connection in low signal circuits, such as the output from strain gauges or thermocouples, to prevent excessive voltages therein. The diodes breakdown at about half a volt and may be duplicated (shown dotted) for reliability and there may be a second protected low impedance path from 6<SP>1</SP> to 9<SP>1</SP> In Fig. 2b (not shown) the duplicated sets of diodes are separated by resistors like 12, the purpose of which is not stated, and in Fig. 2c (not shown) additional diodes in series increase the breakdown voltage. Strain gauges.-In Fig. 1(not shown) four sets of strain gauges are connected in series with each other and the terminals 5<SP>1</SP>, 6<SP>1</SP> of the device, each set comprising four bridge connected strain gauges supplied from an A.C. source from a transformer, and used for weighing.
Patent GB-1288429-A (GB)
IPC: B21B37/38
Filed: 1970-04-03
Abstract: 1288429 Rolling mills SCHWERMASCHINENBAU-KOMBINAT ERNST THALMANN MAGDEBURG VEB 3 April 1970 15977/70 Heading B3M [Also in Division G1] In a strip rolling mill, an electrical signal dependent on the rolling force is applied through a two-stage amplifier with variable feedback and variable bias to control an hydraulic pump supplying fluid to piston and cylinder actuators which bend the rolls and thereby regulate roll crown. As shown, an electrical signal from a transducer 1, dependent on the rolling force of a mill, is amplified at 2 and controls a regulator 3 which adjusts the output pressure of an hydraulic pump 4 supplying piston-type actuators 5 which engage the journals of the rolls so that bending forces are applied to the rolls to ensure that thickness is uniform across the width of the material being rolled. Bending forces suited to the width are selected by adjusting an amplifier feedback potentiometer 6. Initial roll crown or variations of temperature along the length of the strip may be compensated for by adjusting a potentiometer 8 to apply a suitable direct volt. age bias to the amplifier.
Patent GB-1288610-A (GB)
IPC: H05H1/50
Filed: 1969-12-30
Abstract: 1288610 Arc gas heater WESTINGHOUSE ELECTRIC CORP 30 Dec 1969 [10 Jan 1969] 63225/69 Heading H5H A process for heating gas by passing gas to be heated through an annular arc gap 14 between electrodes 12, 13 having an arc rotating therein, wherein the electrodes are maintained at a system voltage at all times sufficient to break down the gap 14 and initiate an arc and the velocity of gas through the gap 14 is high enough to elongate the arc sufficiently to raise the arc voltage required to sustain the arc above the system voltage across the electrodes, so that the arc is repeatedly elongated, extinguished and reinitiated during each heating operation. The electrodes 12, 13 are axially spaced annuli as shown, although they could comprise a pair of coaxially disposed, radially spaced electrodes with an annular gap. Field coils 18, 19 in electrodes 12, 13 rotate arc 15 and channels 16, 17 in the electrodes are provided for cooling. Gas is passed through gap 14 by way of headers 41, 42 and passage 43. Annular passages 26 between heat shields 25, 33 and electrodes 12 and 13 are provided for quenching medium or process gas. In Fig. 2 (not shown) the electrodes are axially displaceable through gearing by an electric motor. The arc gap may be automatically varied as a function of the pressure difference between arc chamber 11 and passageway 43. In Fig. 5 (not shown) pressure probes in chamber 11 and passageway 43 are connected to a differential pressure controller which controls the motor driving the electrodes. Since the pressure difference is a function of arc gap, the system described automatically compensates for changes in arc gap due to erosion. The arc voltage can be varied by altering the field coil current. In Fig. 6 (not shown) a calorimetric probe in chamber 11 senses enthalpy changes in the gas and through a process controller alters the field coil current. The two systems above described automatically maintain otpimum conditions for maximum enthalpy. Methane and nitrogen are specified process gases. The arc gap 14 is less than 0À5 inches.
Patent GB-1288720-A (GB)
IPC: F01D17/16
Filed: 1971-04-19
Abstract: 1288720 Gas turbines FORD MOTOR CO Ltd 19 April 1971 [7 May 1970] 25503/71 Headings F1G and F1T Power turbine inlet nozzle blades 132 are angularly adjustable by crank arms 128 universally connected to a disc 122 which is axially and angularly movable by respective fluid-pressure servomotor pistons 160 and 184. The spherical ends 126 of the arms 128 are movable over approximately 130 degrees in an arcuate path (138), Fig.4 (not shown), and the forces applied by the disc 122 are substantially pure tangential forces. The piston 160 is mounted directly on the disc shaft 112 and the piston 184 is connected to a lever 118 on the shaft. The chambers 166 and 168, Fig.2, defined between the stationary partition 156 and the piston members 162 and 164 are connected to a supply of fluid under the control of a shuttle valve 230 and a valve 209 formed by the shaft 182 of the piston 184. The piston chambers 190, 192 are connected to separate sources of control fluid under pressure which are also connected to opposite ends of the shuttle valve 230. The valve 209 defines chambers 208 and 216 which are vented and a chamber 210 which is connected to an independent source of fluid under pressure. In operation, a control pressure supplied through line 194 or 196 will move the piston 184 from the position shown in Fig. 5 in which the blades 132 are located in a mid position and simultaneously the valve 230 is moved to an end position connecting the supply line 214 to one chamber of the piston 160 and the other chamber to the vent line 212 or 218. The blades 32 are located downstream of a compressor turbine (24), Fig.1 (not shown), on a compressor shaft (18), the gas flow path (43) from the engine combustion chamber. Air from the compressor is fed to a central bore 116 of a central shaft 96 for passage to the space between labyrinth seals 114 spacing the disc shaft 112 within the power turbine shaft 46. The shaft 46 is coupled through gears (76, 84, 86), Fig.1, to a power take-off pulley (82) and the engine output shaft (88).
Patent GB-1295673-A (GB)
IPC: C08F8/40
Filed: 1969-01-30
Abstract: 1295673 Oligomerization BRITISH PETROLEUM CO Ltd 31 Dec 1969 [30 Jan 1969] 5193/69 Heading C5E [Also in Division C3] Polymers containing transition metal and phosphorus atoms are used as catalysts in the oligomerization of olefins. Specifically: M(acac) n  + Et 2 Al(OEt) for the cyclodimerization of butadiene where M is Fe (111), Co (111) or Ni (11), n is 2 or 3 and acac is acetylacetonate; Ni(acac) + Et 3 Al 2 Cl 3  for propylene oligomerization; (RCOO) 2 Ni + R 2 AlCl for propylene dimerization; (1,5-cyclo-octadiene) 2 Ni, [(C 6 H 5 O) 3 P] 4 Ni and [(RO) 3 P] 2 Ni(CO) 2  for the cyclo-oligomerization of butadiene; (#CH 2  = CHCN) 2 Ni (where R is an alkyl or aryl group) for the oligomerization of olefines; (#C 3 H 5 )NiBr for the dimerization of propylene and Ni(acac) 2 +Et 3 Al for the codimerization of butadiene and ethylene. The transition metal compounds refer to a phosphorus containing polymer complex of that compound.