baber/WOPTO huggingface dataset:
Patent GB-816723-A (GB)
Title: Improvements in or relating to devices for measuring the displacement of a movable member relative to a stationary member
IPC: G01B11/00
Filed: 1957-08-08
Abstract: 816,723. Photo-electric measuring apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 8, 1957 [Aug. 11, 1956], No. 25051/57. Class 40 (3). In apparatus for measuring the relative displacement of two members by passing light through two grids 1, 2 carried thereby on to photo-cells 3, 4 which are connected to an elec. tronic comparison apparatus 5 and a counter 6, the grids 1, 2 are made of slightly different pitches so that the signals received by the cells 3, 4 are of opposite phase. The grids may be in contact as shown or may be spaced apart with an optical system between them and with a prism or mirrors to direct the light on to the cells.
Patent GB-1210448-A (GB)
Title: Method of and means for stacking signatures
Inventor: STOBB ANTON RUDOLF
IPC: B65H29/14
Filed: 1968-05-27
Abstract: 1,210,448. Delivering signatures. A. R. STOBB. 27 May, 1968 [16 Nov., 1967], No. 25170/68. Heading B8R. Signatures 10 in an overlapping stream with their folded edges 16 trailing, are transferred from endless conveyer 11 to endless conveyer 22 by way of a stop member 74 which arrests the signatures and directs them on to conveyer 22 with their folded edges 16 leading. The signatures are stripped from conveyer 22 and stacked into jogger 26. A belt 47 carries the stream of signatures into box 26 until they abut floor 48. The signatures are guided on to conveyer 22 by a guide 76, and brushes 77 on pulley 21 are held against the conveyer by a drum 36. Brushes or bristles 86 on pulley 41 serve to brush sheet edges 84 to the left, as shown, to clear the way for further signatures to be stacked.
Patent GB-772348-A (GB)
Title: Improvements in or relating to typographical composing and casting machines
IPC: B41B27/10
Filed: 1955-09-02
Abstract: 772,348. Type - bar - making machines. MERGENTHALER LINOTYPE CO. Sept. 2, 1955 [Dec. 29, 1954], No. 25227/55. Class 100(3) Driving mechanism; assembling matrices; metal pots. In a typographical composing machine, a tape control device controls adjustable selective mechanism for conditioning the machine automatically for casting one or more slugs from a line of matrices. In Fig. 5, the mechanism is shown diagrammatically in plan at the upper right, in side view at the left, and in front view at the lower right. During normal operation a ratchet bar S is held in its forward position by a stop M5 on a control member M, while a clutch 13 is closed so so that the feed of the tape Y is not interrupted. When a particular perforation y is sensed in the tape by a bell-crank B1, a switch c is closed to energize a solenoid D and through a toggle F and actuator E the member M is set to the position shown in chain lines, for casting two slugs from each line, as indicated by a pointer m2. The subsequent movement of the line delivery slide operating lever releases the bar S, which is then moved by a spring S2 as far as permitted by the stop M5. Movement of the bar S mechanically operates a latch to lock the assembler in its lower position and a stop to arrest the first elevator short of its line transfer position, so that the same line will be presented twice. The movement of the bar S also allows to close a switch G to energize a solenoid 16, which moves a lever 17 to open the clutch 13 and interrupt the tape feed. Slidable on the bar S is a pawl S3 which is spring- urged rearwardly, and is moved forwardly by the forward movement of the metal pot, carrying with it a rod (not shown) which becomes locked in a forward position and prevents the machine from being stopped at the end of the first cycle. As the pawl S3 moves rearwardly, it engages a tooth S2 of the bar S and retracts it one step. After two slugs are cast, the bar S thus returns to normal position, and in doing so releases the assembler, the first elevator, and the said rod, while the switch G opens to close the clutch 13 and resume the tape feed, whereupon a protuberance b1 on the bell-crank B1 is forced out of the perforation y, the switch c is opened, and a spring d1 returns the member M to normal position. The member M is provided with a knob and a detent mechanism, and by rotating the knob it can be set manually for casting 2, 3, 4, 5 or an indefinite number of slugs from one line as described in U.S.A. Specification 2,235,482.
Patent GB-851319-A (GB)
Title: Improvements in jet propulsion nozzles having variable cross-sectional area
Inventor: LOGEROT RENE PAUL
IPC: F02K1/30
Filed: 1958-08-06
Abstract: 851,319. Controlling jet propelled aircraft. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Aug. 6, 1958 [Sept. 16, 1957], No. 25239/58. Class 4. [Also in Group XXVI] In a jet propulsion nozzle the effective area of which is varied by moving a ring 25 axially to control the effect of auxiliary jet j5, the direction of the jet may be varied by partitioning the manifold 24 into at least three equal compartments each of which may be separately fed or by permitting an oscillatory movement of an annular member 25 about two perpendicular axes.
Patent GB-1477385-A (GB)
Title: Method of and device for producing ignition pulses
IPC: F23Q3/00
Filed: 1974-06-07
Abstract: 1477385 Ignition devices G HARTIG 7 June 1974 [27 July 1973] 25313/74 Heading F1B An ignition device for generating ignition pulses across a spark discharge gap 9 in an internal combustion engine comprises a circuit having a first electrical energy store 5 of a capacitive character connected to the spark discharge gap and a second electrical energy store 2 of an inductive character also connected to the spark discharge gap a single switching device 1 via which the circuit containing both energy stores is connectible to an electrical energy source (not shown) the switching device having a first state in which it connects the circuit to the energy source and a second state in which it disconnects the circuit from the energy source and a control device 6 for controlling discharge of the energy stores in such a way that simultaneous or sequential discharge of the energy stores takes place once the switching device has assumed the second state. As shown the control device 6 is connected to a thyristor 7. In a modification the control device 6 is replaced by a Zener diode connected between the secondary winding 4 and the gate of the thyristor. In another modification the control device and thyristor are replaced by a diac connected between the capacitor 5 and the winding 16 of a transformer 8. In other modifications the transformer has two secondary windings supplying energy to the spark discharge gap 9. Further modifications are described including an arrangement comprising two spark discharge gaps and associated transformers.
Patent GB-797721-A (GB)
Title: Measuring apparatus
IPC: G05B11/01
Filed: 1955-09-02
Abstract: 797,721. Fluid-pressure servomotor-control systems. FOXBORO CO. Sept. 2, 1955 [Sept. 14, 1954], No. 25325/55. Divided out of 797,722.- Class 135. [Also in Groups XXXV, XXXVI, XXXVIII and XL (c)] The D.C. output of a thermocouple is converted to A.C. by a second harmonic converter, amplified and rectified by a phase-sensitive detector, the output current, a proportion of which is fed back through a bridge to balance the thermocouple output being also fed to a. transducer which converts it to a proportional change in pneumatic pressure for control or measurement. As shown, the output from a thermocouple 8 (Fig. 1) is fed to the signal winding 14 of a second harmonic converter 16 via a bridge 24 and a filter 28. The converter has two input windings 46, 48 fed from an oscillator 58, and are connected in opposition to give no signal in winding 14 except when a current from the thermocouple 8 unbalances the flux in the converter core, when a proportional A.C. signal having twice the oscillator frequency is induced in the signal winding 14 and, after amplification at valves 76, 112, is fed to a valve 138 which has a resonant circuit 154 from grid to earth slightly mistuned from the double frequency signal, which together with the oscillator frequency fed to the anode, causes phasesensitive detection at valve 138. The rectified output is amplified at 186 and fed through coils 190, 192 of a transducer 194 (described below) in the anode circuit, and through resistor 202 in one arm of the bridge 24, thus unbalancing the bridge, the D.C. output current of the bridge being fed through the signal winding 14 to neutralize the current from the thermocouple. Temperature compensation is effected by temperature-sensitive resistors 222 in the bridge 24, and 206 adjusting the bias on valve 186 in accordance with the temperature of the transducer 194. The transducer 194 comprises a pivoted plate 334 (Fig. 3) carrying the two coils 190, 192 in the air gaps between two magnets 316, 318 and the cases 312, 314, the intensity of the current in the coils determining the twist on the plate 334, and the amount of movement of a flap 358 from a nozzle 360 which is the outlet of pressurized air fed into a pipe 366. The resultant change in pressure in the pipe 366 due to the movement of the flap 358 is proportional to the current in the cores 190, 192.
Patent GB-1453644-A (GB)
Title: Bis-p-pivaloylbenzyl-malonic acid diethyl ester apparatus and method for purifying contaminated liquids by
IPC: C07C59/84
Filed: 1974-02-15
Abstract: 1453644 B - (p - pivaloylbenzyl)malonic acid diethyl ester SANDOZ Ltd 15 Feb 1974 [20 Feb 1973 3 Oct 1973] 25338/76 Divided out of 1453643 Heading C2C The novel compound, bis-(p-pivaloylbenzyl)- malonic acid diethyl ester, may be prepared by forming a Grignard reagent from 4-bromotoluene and reacting it with pivaloyl chloride to form p-pivaloyltoluene, subjecting this to free radical bromination to yield α-bromo-p-pivaloyltoluene which yields the required compound on reaction with diethylmalonate in the presence of strong base. Pharmaceutical compositions of the novel compound with the usual excipients show hypolipidemic, especially hypolipoproteinemic activity when administered orally.
Patent GB-834398-A (GB)
Title: A process for the recovery of ªŠ-caprolactam and ªŠ-aminocaproic acid from caprolactam distillation residues
IPC: B01J39/05
Filed: 1958-08-07
Abstract: e -Caprolactam and e -aminocaproic acid are recovered from caprolactam distillation residues containing acid, basic and neutral impurities by treating an aqueous solution of the lactam residue successively, in either order, with strongly acid and strongly basic ion exchangers at below 40 DEG  C., separating the aqueous lactam-containing solution and dissolving the aminocaproic acid from the exchanger first used.  When a cation exchanger is first used, the aminocaproic acid is dissolved from it with aqueous ammonia; when an anion exchanger is first used, the aminocaproic acid is separated from it with aqueous carbonic acid under pressure.  The exchangers may be regenerated with sulphuric acid, and the anion exchanger then activated with caustic soda.  Specifications 703,019 and 762,879 are referred to.
Patent GB-1192641-A (GB)
Title: Improvements in or relating to Vehicle Presence Detector Systems
IPC: G08G1/042
Filed: 1967-06-01
Abstract: 1,192,641. Multivibrators; automatic frequency control; switching circuits. GENERAL PRECISION Inc. 1 June, 1967 [1 June, 1966], No. 25438/67. Headings H3A and H3T. [Also in Division G4] A vehicle presence detector comprises an astable multivibrator having at its output a tuned circuit coupled to an inductive loop, a detector for generating a direct signal representing the amplitude of the signal in the tuned circuit, and means for feeding back the direct signal to control the frequency of the multivibrator The multivibrator 27/28 (Fig. 3) has extra transistors 38/39 of opposite conductivity type acting as constant-current sources for the capacitors 33/35, and which also ensure that the proper base bias is present on starting. The square-wave output of the multivibrator is rectified by diodes 47/48 and charges capacitor 45 to supply the necessary base bias. For a low-voltage supply E the transistor 44 amplifies the rectified voltage but for a higher voltage supply a link 46 is closed to cut out transistor 44. The multivibrator output is taken via a decoupling diode 37 to a constant-current driver 51 for the tuned circuit 13 which converts the square-wave output to sine waves. The amplitude of the sinusoidal signal depends on the presence or absence of a vehicle in the loop 14 coupled to the tuned circuit. The signal is rectified by transistor 58, diode 59 and capacitor 61, and compared with a reference D.C. level in a differential amplifier 63/64. Any drop in amplitude due to the presence of a vehicle in the loop causes line 19 to become less negative and diode 73 is cut off. The inputs to transistors 83 and 84 then become unequal and transistor 84 cuts off, this action being facilitated by level-shifting diodes 89/91. A Schimitt trigger 93/94 then changes over to operate a relay 24. When the vehicle leaves the loop the line 19 becomes more negative and this change is passed via Darlington transistors 75-77 to A.F.C. line 49 which controls the frequency of the multivibrator by varying the impedance of transistors 38/39 which form the discharge paths of capacitors 33/35. The inputs to transistors 83/84 then change equally and the Schmitt trigger cuts off the relay. If the vehicle remains in the loop for a considerable time the capacitor 74 slowly leaks away and the Schmitt trigger changes back. If vehicles are merely to be counted, switch 82 is closed to prevent capacitor 74 from holding a charge. At the same time switch 92 converts the Schmitt trigger into a monostable circuit so that the relay is operated only for a short time. To ensure that the A.F.C. circuit can take over immediately on switching on, a circuit 25 ensures that the multivibrator will always start at its lowest frequency. When power is switched on, transistor 103 conducts and locks point 49 to the supply -E, but as capacitor 104 changes, transistor 103 cuts off to allow the A.F.C. voltage to control point 49. Diode 105 discharges the capacitor on switching off.
Patent GB-1144633-A (GB)
Title: Improvements in or relating to wet-type dust-collectors
Inventor: JOHNSON JOHN CUNNINGHAM
IPC: B01D47/10
Filed: 1965-06-16
Abstract: 1,144,633. Venturi-scrubber. DAVIDSON & CO. Ltd. 10 June, 1966 [16 June, 1965], No. 25440/65. Heading B1R. A venturi-scrubber for cleaning dust-laden gas has water sprays 17 in a gas inlet section 11, vanes 22 to rotate gas and liquid passing through the throat-section 21 and in chamber 12 a series of interfitting frusto-conical elements 23, spaced apart to form annular passages therebetween and surrounded by baffle plates 27 the lower edges of which extend into but are above the level of liquid in a liquid discharge duct 29, clean gas leaving by an outlet 15. Water from sprays 17 may impinge upon a series of spaced-apart corrugated plates arranged in section 11 and water may be also introduced into the gas tangentially in the throat-section 21. The duct 29 discharges dust laden water into a settling tank 37 and water may also be fed into the tank from section 11 via a conduit 41. The apparatus may be mounted on skids 42.
Patent GB-1502300-A (GB)
Title: Method of making a printing plate from a porous substrate
IPC: B41C1/05
Filed: 1975-04-25
Abstract: 1502300 Printing plate LOGETRONICS Inc 25 April 1975 [2 July 1974] 25485/77 Divided out of 1502299 Heading G2C The subject-matter is identical with that of the parent Specification but the claims are concerned with a method of increasing, in an inter-connected open-celled thermoplastics plate, relief achieved over a portion of the surface of the plate previously treated so as to have greater absorption of infrared rays than the remainder of the surface by at least partial collapse of at least part of the open cell structure of said portion, by passing through the remaining inter-connected open-cell structure a cooling field which is cooler than the plate and heating the plate by exposing the surface in which there is relief to infrared radiant energy to heat said portion and thus effect further collapse of the cells.
Patent GB-446663-A (GB)
Title: Improvements in and relating to television systems
IPC: H04N5/21
Filed: 1934-09-04
Abstract: 446,663. Television. BLUMLEIN, A. D., 7, Courtfield Gardens, Ealing, London. Sept. 4, 1934, No. 25498. [Class 40 (iii)] In a television receiver, the light is maintained at a low value for received signals exceeding a predetermined amplitude. As applied to a cathode ray receiver, the rectified signals at terminals 1 are applied to control a cathode ray over a potentiometer 2 and are fed to a limiting valve 7 so that signals in the " whiter than white " sense, such as synchronizing or interfering signals, produce impulses in the anode circuit which are applied to reduce the cathode ray intensity. In a modification, the picture signals are delayed relatively to the signals from the limiting valve, and the receiver is modified to co-operate with a transmitter sending the direct-current modulation component, Fig. 2 (not shown).
Patent GB-440320-A (GB)
Title: Improvements in hand steering wheels
IPC: B62D1/08
Filed: 1935-09-14
Abstract: 440,320. Hand wheels. ASHBY & SONS, Ltd., F., and ASHBY, F. C., Bournville Stamping Works, Charlotte Road, Stirchley, Birmingham. Sept. 14, 1935, No. 25545. [Class 80 (iv)] The inner ends of the spokes of steering wheels for vehicles are encased in shockabsorbing indiarubber socket members 5, 6, which are housed under compression between a metal ring 10 and a flange 9 on the hub. A metal sheath 7, Fig. 7, is secured to the spokes inside the rubber. If the spokes are of sheet steel the inner ends are corrugated before being encased by the rubber. The invention is specially applicable to the wheels described in Specification 377,440.
Patent GB-1059019-A (GB)
Title: Variable speed position measuring transformer system
IPC: H02P5/50
Filed: 1965-06-17
Abstract: 1,059,019. Electric selective signalling. INDUCTOSYN Ltd. June 17, 1965 [June 25, 1964], No. 25656/65. Heading G4H. Polyphase position-measuring transformers with a common drive are connectable in tandem. Four resolvers with two-phase input and output windings and a common shaft for the movable windings have speeds (i.e. number of cycles of the coupling wave per revolution) in the ratio of 1 : 3 : 9 : 27 by having numbers of poles in the ratio 2 : 6 : 18 : 54. Switches are provided for passing a two-phase input voltage through a selection of the resolvers in turn and for selectively reversing one phase at each resolver. Thus the whole device can have any one of 40 resultant speeds. The input voltage may represent the desired position of the shaft and the output of the resolver series represent an error voltage used to control its position. Two series of resolvers as above, with separate shafts, may be connected in tandem.
Patent GB-246572-A (GB)
Title: Improvements in or relating to electrically-operated governors for controlling primemovers
IPC: H02P9/00
Filed: 1924-10-28
Abstract: 246,572. Tilling-Stevens Motors, Ltd., and Whitehorn, H. K. Oct. 28, 1924. Electric governors. -A governor for an engine driving a dynamo of the kind including two relatively oscillatory members having magnetic axes which tend to coincide has on one or both of them windings energized according to the volts and amperes of the dynamo circuit and having their magnetic axes angularly spaced. A yoke 2 carries a pair of shunt-wound poles 3 and a pair of series-wound poles 5, each shunt and series pole having a common shoe 7. The rotatable armature 1 is biassed by a coiled spring 8 and is connected by levers to the engine throttle valve. A dash-pot may be used in addition to or instead of the spring. The armature may have symmetrical shunt and series windings. The yoke may be laminated and the poles slotted to receive distributed windings. The air gap may he tapered and the parts may be skewed in relation to the mechanical axis.
Patent GB-1090938-A (GB)
Title: Electrical component assembly and method of manufacture thereof
IPC: H01H19/64
Filed: 1966-06-09
Abstract: 1,090,938. Inert switches. GLOBE-UNION Inc. June 9, 1966 [Aug. 9, 1965], No. 25738/66. Heading H2B. A rotary switch comprises insulating wafers 12, Fig. 1, of rigid plastic or impregnated fibre carrying radial contacts 14 and push fitted into spaced relationship on radially compressible struts 25 of slit tubular or slotted bar form. The mounting plate 21 carrying a threaded bush 21a is similarly push-fitted on to the struts 25.
Patent GB-685745-A (GB)
Title: Improvements in or connected with the springing systems of motor road vehicles
IPC: B60G11/14
Filed: 1951-10-26
Abstract: 685,745. Spring suspensions. DAIMLERBENZ AKT.-GES. Oct. 26, 1951 [Oct. 1, 1948], No. 25747/51. Class 108 (ii). In a springing system for motor road vehicles comprising springs arranged in front of and behind a respective road wheel, the springs are arranged in the plane of the wheel. In the arrangement shown, a U-shaped bearer 22 is secured to an axle 4 the links of the U embracing a wheel 5 and serving to support coil springs 16, the other ends of which abut against frame members 11 and 20. The axle 4 is located by a central V-shaped bar 9 pivoted to the frame at 10 and to a differential casing 8 by a ball joint 12 and by a pair of radius rods 13 connected to the frame and axle casing by ball joints 14, 15. The springs 16 may be replaced by guided coil springs, hydraulic springs or rubber springs and the single springs shown may be replaced by a plurality of springs.
Patent GB-795619-A (GB)
Title: Method for the esterification of 2-hydroxy-4-amino-benzoic acid with phenols
Inventor: JENSEN CARL LUND
Filed: 1955-09-08
Abstract: Phenol esters of 2-hydroxy-4-aminobenzoic acid (p-amino-salicylic acid) are produced by heating the acid and a phenol, preferably to 80-120 DEG  C., in presence of P2O5 or a polyphosphoric acid containing more than 75 per cent and preferably more than 80 per cent of P2O5.  In examples the acid and phenol react in presence of polyphosphoric acid of 82.7 per cent P2O5 and P2O5, at 100 DEG  C. Quantities of 2.5-8 mols. of the phenol and 1.5-3 mols. of P2O5 to the mol. of p-aminosalicylic acid are best. The purification of the phenyl ester is described.  Specification 737,040 and U.S.A. Specification 2,604,488 are referred to.
Patent GB-947228-A (GB)
Title: Viewers for transparencies and the like
IPC: G02B27/02
Filed: 1961-07-17
Abstract: 947,228. Viewers. D. M. PATERSON. July 2, 1962 [July 17, 1961], No. 25849/61. Headings G2A and G2J. A transparency viewer comprises a box structure with a lens unit 9, a light diffusing screen 20, a light bulb 14, a guideway 21 for a transparency, two spaces into which two battery cells may be respectively inserted and a circuitry connecting the cells to the bulb 14 via a switch 15 operable to close the circuit by insertion of a transparency into the guideway, part of the wall 6 being hingeable at 7 to the remainder of the box, and providing an operable panel whereby the battery cells are accessible, said panel having a spring catch locking device 8. The panel 6 is provided with a slot 10 for the transparency and part of the battery cell circuit.
Patent GB-1352788-A (GB)
Title: Process for the production of sheets and films for chromatography particularly thin layer chromatography and adsorbent composition for carrying out the process
IPC: B01J20/281
Filed: 1971-04-19
Abstract: 1352788 Chromatographic adsorbent M WOELM 19 April 1971 [2 April 1970] 25855/71 Heading C1A [Also in Division B1] An adsorbent composition for use in thin layer chromatography comprises an adsorption active powder and as a binder, from 1 to 50% by weight of SiO 2 , calculated dry on the weight of the adsorption active powder, in the form of silica sol. The adsorption active powder may be silica gel, aluminium oxide kieselguhr, magnesium silicate or a mixture thereof. The composition may be applied to a substrate in the form of a paste, dried and activated at a temperature between 100-120 C.