baber/WOPTO huggingface dataset:
Patent GB-1253090-A (GB)
IPC: G01N30/86
Filed: 1969-03-04
Abstract: 1,253,090. Selective signalling. PERKIN-ELMER CORP. 4 March, 1969 [4 March, 1968], No. 11541/69. Heading G4H. In a system for analysing an electrical waveform, for example, the output, Fig. 2, of a gas chromatograph, the following operations are performed:- (1) the waveform amplitude is converted to a corresponding frequency, cycles of which are counted for N successive periods #t c , and these counts are accumulated to give a sum A 0 , Fig. 4A, representing the average waveform amplitude over the period N#t c ; (b) the average amplitude A 0 , together with the six preceding average amplitudes A 0-1 , A 0-2  ... A 0-6 , over similar periods are stored; (c) from the six preceding values A 0-1 ... A 0-6 , an average increase from period to period, is computed and used to forecast an expected value B p  for A 0 ; (d) if A 0 -B p  exceeds a preset threshold level, it is assumed that the beginning of a peak has been encountered. The system then enters a different mode of operation in order to evaluate the area under the peak relative to a base line B pp , Fig. 4c, obtained by continuing the forecast B p  of A 0  linearly into the future; (e) successive values of A less the forecast base line are accumulated; (f) successive values of A are subtrated from each other so that the slope of the waveform can be monitored, and when it drops to a low level, less than a preset threshold level, after passing the actual peak value, a test is made to decide whether the amplitude of the waveform is then less than a further preset threshold in order to determine whether a valley between two overlapping peaks has been encountered or whether the waveform has returned to the base line level; (g) if the waveform has returned to the base line the system reverts to is normal mode as in steps (a), (b) and (c) above. An outling block-diagram using serial arithmetic and conventional components is described. The evaluation of overlapping peaks is not described.
Patent GB-1257112-A (GB)
IPC: A23K10/33
Filed: 1969-11-17
Abstract: 1,257,112. Animal feed. H. E. BODE. 17 Nov., 1969, No. 56136/69. Heading A2B. An animal feed product is produced by fermenting water diluted fermentable crude carbohydrate under suitable carboxylic acid producing conditions thereby transforming the carbohydrate to an edible acidic material suitable for animal feed, neutralizing the resulting carboxylic acid containing liquor and dehydrating this liquor. A suitable crude carbohydrate is commercial molasses, com steepwater, or whey liquor, and this carbohydrate is fermented to produce preferably lactic and/or gluconic acid(s). The neutralisation may be carried out with lime. After the lime neutralisation step, the crude calcium lactate-containing liquor may be mixed with diammonium phosphate so that dicalcium phosphate is precipitated and the resultant solution contains ammonium lactate; by this means a non-ruminant feed, dicalcium phosphate, and a ruminant feed, ammonium lactate, are obtained. By using as the crude carbohydrate, a grain steepwater, a ruminant feed blend comprising ammonium lactate, ammonium gluconate and dicalcium phosphate may be obtained, the process comprising the preparation of a limeneutralised feed product as above, followed by further fermentation of residual dextrose to gluconic acid, lime-neutralising the gluconic acid, dehydrating the resultant mixture containing calcium lactate and calcium gluconate and mixing this dehydrated product with diammonium phosphate to form the above ruminant feed blend.
Patent GB-1257365-A (GB)
IPC: F21V5/00
Filed: 1969-04-03
Abstract: 1,257,365. Signal-lamps for vehicles. PROJECTEURS CIBIE. 3 April, 1969 [26 April, 1968], No. 17543/69. Heading F4R. An indicator lamp for a motor vehicle has a window provided on its inner side with at least one group of concentric arcuate ridges, one side of each ridge being located on a respective conical surface the apex of which is spaced from the plane of the window and from the axis of the lamp. The side may be arranged to refract or internally reflect the light emitted by the source, and the angle of deflection may be constant along the length of each ridge and for all the ridges of the group or may vary along each ridge.
Patent GB-1257520-A (GB)
IPC: G01S7/529
Filed: 1969-12-04
Abstract: 1,257,520. Automatic gain control; sonar systems. THOMSON C.S.F. 4 Dec., 1969 [11 Dec., 1968], No. 59370/69. Headings H3Q, H4D and H4R. An automatic gain control for signal supplied by a sonar system comprises an attenuator 1 whose loss is controlled by signals derived from the output of the amplifier 2 via two control circuits. One control circuit includes a lowpass filter 5 following a rectifier 3, to provide a rising gain to compensate for the approximately exponential fall in signal level with distance along the reflecting surface, and hence with time, while the other control circuit includes a voltage selector 11 to pass only control signals exceeding a predetermined amplitude and thus provide a fast-acting compression of signal spikes likely to saturate the amplifier. The signals from the two control circuits are fed to control the impedance of a f.e.t. S in the attenuator 1 via a maximum voltage selector formed by the diodes D 3  and D 4 . Instead of controlling the loss in the attenuator the control signal may control the gain of amplifier 2.
Patent GB-1258641-A (GB)
IPC: B21B35/00
Filed: 1969-01-27
Abstract: 1,258,641. Stretching; rolling. BWG BERGWERK UND WALZWERK - MASCHINENBAU G.m.b.H. 27 Jan., 1969 [15 Feb., 1968; 22 Nov., 1968], No. 4509/69. Headings B3E and B3M. A stretching device for continuously stretching strip comprises first and second roll stands 1, 2, each stand having a plurality of rolls 4a-4d, 5a-5d, each roll of the first stand driving a fluid pump 6a-6d and each roll of the second stand being driven by a fluid motor 7a-7d, the torques of the pumps and motors being graded, preferably in the ratios 2: 4: 8: 16 and 16:8: 4: 2 respectively, to produce a desired distribution of tensile forces in the strip. The pumps and motors have their high-pressure sides connected to a common high-pressure fluid line 8 which is fedby a pump 9 and has a pressure control means 15 associated therewith. A second pump 14 is connected to the low-pressure side of the pumps 6a-6d and has a pressure control means 16 associated therewith, this pump causing the pressure difference across the pumps 6a-6d to be lowered so that the motors 7a-7d can turn their respective rolls to draw the strip through the stands. Alternatively, the strip may be drawn through by an independent means (not shown) on the downstream side, 3b, of stand 2. A skin-pass roll stand (29) driven by the strip, Fig. 3 (not shown), may be placed between stands 1 and 2. The pressure in the high pressure line 8 is preferably controlled by sensing devices (21), (22), Fig. 3, which measure the amount of stretch imparted to the strip. A strip tensiometer (17) measures the tension in the incoming strip, directly compares it with a standard and alters the pressure in line 13 so that the motors draw the strip through faster or slower until the required tension in the incoming strip is achieved.
Patent GB-1259576-A (GB)
IPC: H01L41/107
Filed: 1970-05-05
Abstract: 1,259,576. Piezo-electric transformers. DENKI ONKYO CO. Ltd. 6 May, 1970 [8 May, 1969], No. 21750/70, Heading H3U. [Also in Division H2F] A high-voltage generator for use with a television or cathode-ray tube, employs a piezoelectric transformer 40. A horizontal deflection circuit 10 feeds an A.C. signal to a filter circuit 30. The input terminals 11 and 12 receive a horizontal synchronizing signal. The filter circuit 30 comprises a capacitor 31 and an inductor 32, which acts as a bandpass filter, resonant at the resonant frequency of the piezoelectric crystal 40. This filter prevents D.C. being fed directly on to the piezo-electric crystal, thus avoiding distortion. It also prevents frequency drift when no horizontal synchronizing signal is fed into the circuit, thus preventing excessive current being drawn through transistor 14. The output from the piezo-electric transformer is fed through a voltage rectifying and doubling circuit 50. In an alternative embodiment the filter unit 30 may be fed from a tapping point on transformer 19 and the inductor 32 may be variable. Alternatively the piezo-electric crystal may be fed from a tapping point on the inductor 32. In yet another embodiment the inductor 32 is connected to the transformer 19 on one side and to a capacitor 31 on the other side and the piezo-electric crystal is fed from a centre tap on the capacitor.
Patent GB-1264705-A (GB)
IPC: F02B75/04
Filed: 1969-06-17
Abstract: 1,264,705. Pistons; valves. CONTINENTAL MOTORS CORP. 17 June, 1969, No. 30558/69. Headings F2T and F2V. A variable compression ratio piston for an I.C. engine comprises outer and inner relatively movable parts 12, 14 which move in response to reciprocation of the piston to vary the volume of a fluid-pressure chamber 30, and a discharge valve 64 for controlling the discharge of fluid from the chamber to the crank-case, the valve member 92 being slidably supported at 106 by the valve seat which includes a portion 94 accessible from the end of the passage for adjusting the pressure of the valve spring 96. Oil is fed through the connecting-rod and oil collector 48 as disclosed in Specification 1,232,063, and past triangular-shaped non-return valve-plates 84 to upper and lower chambers 30, 32. During each cycle of operation, the outer part 12 tends to move upwardly tending to expand the chamber 30 and contract the chamber 32 so that the lower valve-plate 84 closes oil to the chamber 32 to form an hydraulic lock between the outer and inner parts 12, 14. Since, however, an orifice 37 permits oil to escape from the chamber 32, the outer member will move upwardly a small distance on each engine cycle. When the gas pressure exceeds the upper limit, the discharge valve 64 lifts to discharge some oil from the chamber 30 through passages 108, 116 and grooves 102. One of the grooves is engaged by a spring-urged plunger 105 for locking the valve seat in its adjusted position.
Patent GB-1265961-A (GB)
IPC: B21D43/18
Filed: 1968-02-23
Abstract: 1,265,961. Coining. MINTING EQUIPMENT Ltd., and D. R. COOPER. 23 May, 1969 [23 Feb., 1968], No. 8983/68. Heading B3Q. [Also in Division B8] Apparatus for transporting disc-like objects, e.g. coins and coin blanks, comprises a tube 14 with a downwardly-extending outlet end 24, Fig. 3, of internal diameter slightly greater than the discs, the tube having ports 27 above the outlet and a vacuum chest 28 surrounding the ports, and a member 16 extending across the outlet to impede progress of the discs which accumulate at the outlet with the lowest disc on the member and the uppermost tending to be lifted by the vacuum, the member allowing the discs resting on it to escape from the tube. Discs may be sucked upwardly into the tube from an inspection table; the apparatus may also be used for feeding coins or coin blanks to an inspection table or to a counting machine. As shown, Figs. 1 and 3, coin blanks are delivered to a coining press 15 from a hopper 10. A feed belt 11 deposits the blanks in a vibrating feeder 12 which may supply a number of presses, through suction pipes 14. Tapering and reduced sections 22, 24, Fig. 3, are detachably secured to the end of the pipe 14. A vacuum main 30 is connected to the chest 20 by a pipe 29 including a valve 32 and to a point opposite the end of section 24, Fig. 3, by a tube 34. Blanks are pushed from beneath the section 24 by a feedfinger 19 on the table 16 delivering them to the dies 17, 18. In another construction, for transferring coins from a press 50, Fig. 4, to an examination table consisting of a moving belt 55, a feeder 51 moves the coins into the end of the suction tube 52 in which the vacuum chest 61 may be below the replaceable tapered section 60. A number of tubes from separate presses may deposit coins on the belt 55, Fig. 5 (not shown), which is looped past a guide 57 to reverse the coins for a lower pass 58. Coins may also be fed downwardly into the tube from a hopper. If the acceptance rate of a suction tube is too great, coins will build up to mask the ports 27, Fig. 3, and reduce the suction; an insufficient supply will result in one or a few coins remaining suspended above the outlet. A modified outlet for delivering coins to a hopper includes a plate (70), Fig. 7 (not shown), pivoted to the end of the outlet and counterbalanced to release coins in batches, the plate closing the outlet with at least one coin suspended in the tube by suction.
Patent GB-1288343-A (GB)
IPC: E04C5/12
Filed: 1971-02-03
Abstract: 1288343 Coupling cables CCL SYSTEMS Ltd 3 Feb 1971 3801/71 Heading D1T [Also in Divisions E1 and E2] A coupling plate for joining the ends of two sets of tensioned reinforcing cables S, S' in pre-stressed concrete, has a central portion 3 for locating the plate in the concrete situation and through which there are holes 4 tapered at 5 to receive conical grippers 10 for cables S, and there are a series of radial slots 6 for holding the other cables S' which have on their ends, compression fittings 11 and seating washers 12. A retaining ring 13 holds the cables S' in their slots. The spigot portion 3 may be hollowed out as at 14. The seatings 8 may be radial instead of being inclined as shown. As shown the central portion 3 projects from the plate to provide a locating spigot, but a separate ring (15, Fig. 5, not shown) may be used.
Patent GB-1289121-A (GB)
IPC: B02C19/18
Filed: 1969-02-10
Abstract: 1289121 Electrohydraulic crushing UNITED KINGDOM ATOMIC ENERGY AUTHORITY 29 Jan 1970 [10 Feb 1969] 7168/69 Heading B2A Electro-hydraulic crushing apparatus particularly for crushing samples for analysis comprises a support 16 to receive a preferably disposable sample container 28 having spaced electrodes 29, 33 therein, means to clamp the container in the support and means to connect the electrodes across a high voltage source. The sample container is supported over the whole outer surface against the explosive forces of crushing therein. The electrodes may be brass copper or titanium, and the container of plastics. As described, a toggle clamp presses a brass cap 35 over the container 28 and makes contact with a plate 11 which is earthed. Simultaneously the bottom of the container contacts an electrode 24 of an air spark gap 26, 25. Charging capacitors 13, 14 are arranged in a ring around the sample container and spark gap. E.H.T. is applied via a charging resistor and contact 15 to a plate 12 which contacts the electrode 25. The apparatus is enclosed in a safety box 37 having a lid operated switch 41, 42 which discharges the capacitors when the lid 27 is opened. In an alternative embodiment a key-operated locking mechanism and the key switches also the EHT which must be off to remove the key from the power supply.
Patent GB-1289233-A (GB)
IPC: B65H63/00
Filed: 1970-04-20
Abstract: 1289233 Feeding yarns between winding stations ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 20 April 1970 [25 April 1969] 18702/70 Heading D1F In apparatus whereby yarn 1 is unwound from one station, e.g. as represented by a cap 4, and rewound at lower take-up speed at a succeeding station, e.g. as represented by a drum-wound package 10, the (injected) yarn feed into an intermediate, temporary storage device or accumulator 7 is correctly arrested (and subsequently allowed to resume) according to the tension of yarn fed to the accumulator and/or the degree of filling thereof. A pneumatic control system comprises tension and perhaps, "accumulator-filled" sensors 8 and 12, which, through an evaluating control unit (14), operate a single- or double-bellows power unit 6 to cause swinging movement of arm 61 whereby yarn is forced into or from engagement with advancing rolls 2, 3. The bellows of unit 6 operate against a return spring which ensures that, in the event of failure of operating air supply, the yarn is removed from the nip of rolls 2, 3.
Patent GB-1289779-A (GB)
IPC: H04N5/257
Filed: 1970-09-15
Abstract: 1289779 Colour television recording COLUMBIA BROADCASTING SYSTEM Inc 15 Sept 1970 [29 Oct 1969] 44075/70 Heading H4F A transparent photographic film 10 has recorded on it a sequence of movie frames 12 followed by still frames 28a, 28b, the film also being formed with marks 30 before the still frames which are detected by a light 22 photosensor 24 and detection circuit 32 to stop the film transport so that the still frames can be viewed for as long as desired. As shown in Fig. 1 the recorded pictures are split into luminance 12 and chrominance 14 informations, the marks 30 and synchronizing marks 20 being formed between these two sets of information, with the sound information recorded on marginal tracks 18. In an alternative embodiment (Fig. 2, not not shown) two different monochrome tracks are recorded side by side, different numbers of marks 30 being provided for the still frames of the two tracks, the detection circuit 32 being switched to be responsive to the marks relating to the track being viewed. Three title frames 12<SP>1</SP>, 14<SP>1</SP> may be included for viewing while the film is being stopped prior to viewing the first still frame 28a. To view the film a flying spot scanner and photo-multiplier 66 are used, the vertical scan velocity being twice the film velocity, the film being moved continuously for movie viewing. If it is desired to view a particular movie frame a button 59 is manually depressed depressing a switch S 2  which stops the film and causes the flying spot scanner raster to collapse so as to scan a single movie frame. If however the marks 30 are detected by circuit 32, a solenoid armature 58a is pulled down which depresses the button 59 and also operates a switch 70 connected to switch S 1  which stops the film, but maintains the flying spot scanner raster at its movie size, the still frames being made twice the height of the movie frames. The button 59 remains depressed until pressed again. Circuit 32 comprises a tuned circuit which switches a thyristor via a transformer to activate the winding 58 of a solenoid in response to a signal at the resonant frequency of the circuit from marks 30.
Patent GB-1302182-A (GB)
IPC: G01L3/00
Filed: 1969-05-06
Abstract: 1302182 Digital measurement of position EMI Ltd 27 April 1970 [6 May 1969] 22927/69 Heading G4H A device for automatically reading the pointer position on a scale, and providing a digital read-out, employs a vidicon tube to scan an image of the scale. The scale may be, for example, one attached to a torque meter. The scale itself comprises a reference datum line 6, a series of inclined vernier lines 5, and a wedge mark 3 which is used for alignment. Behind the scale moves a pointer comprising a series of pointer marks 7, each identified by a number of lines 4, e.g. two lines indicate that pointer mark 7 is the second mark. The first scan of the vidicon L1, is used to align the image, by ensuring that half the scan is black and half the scan is white as the line L1 traverses wedge 3. The second scan gives no information. The third scan gives pulses corrsponding to the marker in the field of view at that time, i.e. gives a coarse reading, which is recorded on hundredths counter 48. The fourth and fifth scans give no information. On the sixth scan when the scan passes datum line 6 a gate 18 closes and an analog store 40 starts to charge. The passage of the second pulse on the scan, due to the pointer mark 7, causes the charging of the store to stop. If two pointer marks are in the field of view at the same time a second store 34 is also charged. The scans 7 to 9 give no information. On scan 10 the passage of the scan past the datum line 6 causes an analog store 28 to start to charge. When the scan passes the first fine mark 0 to 9, gate 27 is opened so that the value in the store 28 is compared with that in store 40 or 34. This is repeated every time L10 passes a scale mark, the store 28 being continuously charged during the scanning of L10. At the end of the scan store 28 is discharged via gate 31. This charging of store 28 and comparison with store 40 or 34 by comparator 42 is repeated on every tenth scan between L10 and L100. If equality between the value stored in store 40 or 34 and that in store 28 is obtained a signal is produced from the comparator 42. This signal causes counters 49 and 50 to stop counting. Counter 49 counts the number of scan lines and therefore indicates the tens, counter 50 repeatedly, for each scan line, counts the number of scale marks passed and therefore indicates the units.
Patent GB-1303642-A (GB)
IPC: B21D39/06
Filed: 1969-06-11
Abstract: 1303642 Making punches; jointing by stamping FOSTER WHEELER JOHN BROWN BOILERS Ltd 11 June 1970 [11 June 1969] 29587/69 Headings B3A and B3Q A punch for forming indentations around a bore, e.g. to secure a welding filler-ring 22 in a recess 24, comprises a head 12 with indenting tips 66 and a stem 14 expansible in the bore upon initial loading of the head so as to centre the stem before the tips 66 make their indentations. A divided sleeve 39 on the stem, the sections of which are surrounded by O-rings 54 and may be secured together by weld pips (48), Fig. 2 (not shown), is expanded by frustoconical surfaces 34, 36 on a core 30 of the stem as the core is depressed by initial manual load applied to the head. Increased load compresses a spring 67 between the head and core and the tips 66 engage the tube-plate 20, producing indentations when a power-hammer is applied to a shank 60 on the head.
Patent GB-1321870-A (GB)
Title: Activation analysis
IPC: G21K5/02
Filed: 1970-08-10
Abstract: 1321870 Activation analysis UNITED KINGDOM ATOMIC ENERGY AUTHORITY 26 July 1971 [10 Aug 1970] Divided out of 1321869 1184/73 Heading G1A The method of application Specification 1321869 when used with a single detector, is employed to monitor two substances in a flowable sample by ensuring that the flow-rate of the sample along the path is sufficiently high that the radiation activity produced by each substance is substantially independent of flow-rate.
Patent GB-1322169-A (GB)
Title: Convertiplanes
IPC: B64C29/00
Filed: 1969-07-23
Abstract: 1322169 Convertiplane A V KISOVEC 21 Oct 1970 [23 July 1969] 37068/69 Headings B7G and B7W A convertiplane is provided with a fixed wing 3 and a pair of rotors each comprising blades 19, 21, whose masts 43 are tiltable about a spanwise axis between a position in which the rotors provide lift and a position wherein the blades are feathered so that a blade 21 of each rotor forms an extension of the fixed wing. A jet engine 31, Fig. 7, in nacelle 15 at each wing tip drives the rotor through gearing 35 and shaft 45A, inside the mast 43, which carries at its end a spline 45 which meshes with rotor head 50. Pitch control of the rotor blades is by means of arms 30, 42 and swashplate 41 controlled by actuators 37. When the plane has been lifted and given sufficient forward speed by the rotors the nacelle is tilted about arm 29 by means of an electrical or hydraulic actuator 27 to a horizontal position and the plane then propelled by the jet engines. The rotor is disengaged by clutch 33 and feathered for stopping by actuator 53 and is withdrawn from the spline 45 by the swashplate actuators 37, being held in the feathered position by magnets 34 and 34A on the pitch control arms 30 and 42. As the rotor head is drawn back from position A to position B (Fig. 3) detente piston (95), Fig. 11 (not shown), engages groove 99 in the mast, which stops the rotor rotating and finally brings it to its required rest position, when the blades are stowed by means of rotary actuator (59), Fig. 9 (not shown), which also drives a screw jack (73) engaging a conical bore (57) in the inboard blade 19 to render it rigid with the wing, (position C). The chord plane of the stowed blades may deviate by a small angle (α), Fig. 10 (not shown), from the chord plane of the fixed wing 3, Means may be provided to feather the blades to be stowed with a sweptback wing (full-line position in Fig. 4, not shown).