baber/WOPTO huggingface dataset:
Patent GB-1461709-A (GB)
Title: Mirror follow-up device for a film projector
IPC: G03B21/11
Filed: 1974-09-23
Abstract: 1461709 Optical compensation in projectors ERESA SA 23 Sept 1974 [24 Sept 1973] 41379/74 Heading G2E An optical compensating device for continuously moving film comprises a series of mirrors 54 mounted on a wheel 45 which is rotatable about a shaft 23, each mirror being attached to the wheel by a guide shaft 51 pivoting in a ball-and-socket joint 49, 50. Shaft 23 is one of two cranked shaft portions 22, 23, portion 22 being anchored in a stationary supporting base 20. A plate 27 is rotatably mounted on shaft 22, and driven by a worm gear arrangement. Four bolts 35, one for each mirror, are arranged round plate 27, each bolt carrying an eccentric disc 40. The upper portions 44 of the bolts act as driving elements for the mirror wheel 45. Wheel 45 has four bores 46 in which are mounted sliding blocks 48, each block carrying a guide shaft 51. The lower end of each guide shaft carries a roller 64 which is biased by a spring 65 against the eccentric disc 40. At the upper end of each guide shaft is a mirror support 52 carrying a plane mirror 54 in the shape of a sector of an annulus. (The mirrors are seen more clearly in Fig. 3). In operation, as the guide shafts rotate about shaft 23, the upper ends of the shafts, and hence the mirrors, execute a swivelling movement in addition to the rotational movement about shaft 23. The mirror drive and the film drive are synchronized so that any given point of the film frame appears on the projection screen as a motionless point. During projection, each mirror follows one of the images for more than one frame height, preferably two frame heights, so that the pictures projected are flicker-free.
Patent GB-1449292-A (GB)
Title: Castors
IPC: B60B33/02
Filed: 1973-09-04
Abstract: 1449292 Castors MARTIN-THOMAS Ltd 20 Aug 1974 [4 Sept 1973] 41536/73 Heading A4U A castor comprises a wheel 10 mounted on an axle 11 extending through elongate openings 14 in plates 16, plates 32 being pivoted at 36 on the plates 16 and having cam slots 34 engaging the axle 11 whereby by moving the plates 32 about the pivot 36 the axle 11 is moved along the openings 14 to bring the wheel into and out of engagement with a braking surface of a bar 40. A bearing sleeve 12 is interposed between the wheel 10 and the axle 11. The plates 16 are part of a fork which is rotatably mounted on a swivel spindle (25) by ball bearings, Fig. 4 (not shown), the spindle being secured to an internally threaded sleeve 29 for attachment to the leg of a builders staging or hospital bed. The plates 32 are inter-connected by a bar 39 for foot operation. The braking surface may be provided by the turned down end of the bridge of the fork instead of the bar 40.
Patent GB-1446688-A (GB)
Title: Substituted beta-keto esters and amides their preparation and use as insecticides
IPC: C07C49/255
Filed: 1974-09-24
Abstract: 1446688 Substituted #-keto esters and amides ROUSSEL UCLAF 24 Sept. 1974 [24 Sept 1973] 41548/74 Heading C2C Compounds of the formula wherein R represents a straight-chain or branched C 4-10  alkyl radical which may contain a double bond or an epoxide function and/or be substituted by a straight-chain or branched C 1-3  alkoxy radical, Z represents a -CH=CH- linkage, a -CH(OH)-CH=CH- linkage, a -C(CH 3 )=CH- linkage or a -OCH 3 - linkage, X represents hydrogen or methyl, and Y represents a straight-chain or branched C 1-5  alkoxy radical or an amine function -NR<SP>1</SP>R<SP>11</SP>, wherein each R<SP>1</SP> and R<SP>11</SP> represent straightchain or branched C 1-4  alkyl radicals, may be obtained (a) when Y is a C 1-5  alkoxy radical, X is hydrogen and R does not contain an epoxide function, by reacting a compound of formula with a compound of formula wherein R<SP>111</SP> represents a straight- or branchedchain C 1-5  alkyl radical, in the presence of an alkali metal base; (b) wherein R contains an epoxide function, by reacting a corresponding compound of Formula I wherein R contains olefinic unsaturation with an organic per-acid, (c) wherein Y represents -NR<SP>1</SP>R<SP>11</SP>, by reacting a corresponding compound of Formula I, wherein Y is a C 1-5  alkoxy radical, with a compound HNR<SP>1</SP>R<SP>11</SP>; (d) wherein X represents a methyl radical, by reacting a corresponding compound of Formula I, wherein X represents hydrogen, with a methylating agent in the presence of an alkali metal base, or (e) wherein X is hydrogen, Z is -CH(OH)-CH=CH-, Y is C 1-5  alkoxy and R does not contain an epoxide function, by reacting a compound of formula wherein 'alk' represents a C 1-5  alkyl radical and 'alk 1 ', represents C 1-4  alkyl, with an aldehyde of formula in the presence of an alkali metal base, the resulting acetylenic compound being selectively reduced by catalytic hydrogenation. The products possess insecticidal properties and may be formulated and applied in a known manner.
Patent GB-1532677-A (GB)
Title: Voltage dropping circuit
IPC: G05F3/08
Filed: 1976-10-07
Abstract: 1532677 Rectifying INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 7 Oct 1976 [9 Oct 1975] 41648/76 Heading H2F A circuit for obtaining a relatively low D.C. voltage from a relatively high A.C. voltage comprises a first capacitor 2 connected at its one side to an A.C. input terminal 1 and at its other side to the cathode of a first diode 3 and the anode of a second diode 4, the anode of the first diode 3 being connected to the other A.C. input terminal 1<SP>1</SP> and the cathode of the second diode 4 being connected to one side of a second capacitor 5 whose other side is connected to the other A.C. input terminal 1<SP>1</SP>, the D.C. output terminals 8, 8<SP>1</SP>, being connected across the second capacitor 5, the capacitance of the first capacitor 2 being sufficiently lower than the capacitance of the second capacitor 5 so that the output voltage is lower than the input voltage. A resistor 6 and a zener diode 7 may be connected between the second capacitor 5 and the D.C. output terminals 8, 8<SP>1</SP> to provide voltage stabilization.
Patent GB-1058464-A (GB)
Title: Improvements in and relating to television camera lenses
IPC: H01J31/38
Filed: 1964-10-13
Abstract: 1,058,464. Television pick-up tubes; electron microscopes. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Oct. 13, 1964 [Oct. 19, 1963], No. 41727/64. Heading H1D. A television camera tube has two or more targets 35, 36, e.g. of photoconductive or B.I.C. type, which differ in their response to received radiation and which may be selectively introduced into the path of the radiation to suit the target to the energy level of the radiation. For instance targets of B.I.C. type may be of different thicknesses. As shown, the target structures may be slid sideways by means of the actuator 39. The tube may be of the image-orthicon type and may form the end section of an electron microscope in which the target may be used as an alternative to the usual photographic plate and fluorescent screen targets. The invention may be also applied to a vidicon tube.
Patent GB-1030347-A (GB)
Title: Improvements in or relating to guiding devices in cigarette packing or handling machines
IPC: B65B19/24
Filed: 1963-10-23
Abstract: 1,030,347. Packaging cigarettes. A. SCHMERMUND. Oct. 14, 1964 [Oct. 23, 1963], No. 41800/63. Heading B8C. A guiding device on a cigarette handling machine comprises a plurality of cells having movable wall members for varying the width of the cell such that cigarettes are received into a cell at a given width and then discharged from the cell when at a smaller width. Three relatively movable parts 1, 2, 3 on mounting blocks 15, 16, 17 are movable along a slide 25 and secured to slide rods 21 (and 22, 23, not shown) connected by levers 28 and followers 31 to cams 33. In the position shown, the parts 1, 2, 3 form a wide cell 6 positioned in line with a supply path (not shown) for receiving a number of cigarettes, and a narrow cell 7, in which previously deposited cigarettes have been brought close together, positioned in line with a discharge path (not shown), a gap 13 between the parts 1, 3 permitting entry of a pusher for discharging. Operation of the cams 33 causes the parts 2, 3 to move to the right as seen relatively to the part 1 so that the cell 6 becomes narrow and the cigarettes therein are brought together, while the cell 7 becomes wider for receiving more cigarettes; in addition all the parts 1, 2, 3 move together to the right so that the cell 6 is opposite the discharge path, and the cell 7 is opposite a second supply path. Part of a machine is shown having two such guiding devices.
Patent GB-943841-A (GB)
Title: Zeolite catalyzed condensation process for producing organosilicon polymers
IPC: C07F7/21
Filed: 1960-12-06
Abstract: An organopolysiloxane is made by condensing a compound of the formula: <FORM:0943841/C3/1> as described in Specification 943,607, except that (i) the condensation catalyst used in the present process is a crystalline zeolitic molecular sieve, e.g.  Zeolite X as described in Specification 777,233; (ii) each R may also be a hydrocarbon radical with an amino, carbalkoxy or aminoalkylamino substituent, and (iii) the catalyst can be removed from the siloxane oils by filtration and from siloxane gums by dissolving the gums in a solvent and filtering the solutions so formed.
Patent GB-1386502-A (GB)
Title: Electrode for electric humidity sensor
IPC: G01N27/12
Filed: 1972-09-13
Abstract: 1386502 Electric humidity sensor PHYSCHEMICAL RESEARCH CORP 13 Sept 1972 42442/72 Heading G1N A humidity sensor comprises a base 11 having a moisture sensitive resistive layer 12, e.g. lithium chloride and electrodes 13, 14 adherent to the layer, the electrodes consisting in a mixture of carbon black and graphite bonded by a binder. The ratio by weight of carbon black to graphite is between 2:8 and 6:4. The binder comprises for example cellulose nitrate, butyl acetate, camphor, acetone, citric acid and dicyclo hexyl phthalate.
Patent GB-1190254-A (GB)
Title: Bobbin Cradle Arrangement for Vertical Twisting Machines
IPC: B65H54/553
Filed: 1967-09-20
Abstract: 1,190,254. Bobbin cradles; doffing bobbins. PALITEX PROJECT CO. G.m,b.H. 20 Sept., 1967 [27 July, 1967], No. 42733/67. Heading D1J. A cradle arrangement 3 for a bobbin 18 comprises a U-shaped bracket 6, for rotatably supporting the bobbin sleeve 12 between its arms 9a and 9b hinged to an extension arm 4 through an intermediate coupling 5 which is capable of being locked in a chosen position during winding but releasable during doffing of the fully wound bobbin, the entire arrangement pivoting about an axle 7 on the machine frame. During winding and with the coupling locked the entire arrangement pivots about axle 7 as the diameter of the bobbin increases. When the bobbin reaches its final diameter the lock is released and the distance of the bobbin from the axle 7 may then 'be increased or decreased as desired to; enable the bobbin to be positioned over a conveyor 19 by rotation of the cradle arrangement about axle 7. The. release of the bobbin from the grip of holders 10 and 11 of bracket 6 is then carried out by manually or automatically pneumatically or electrically moving the arm 9b axially away from bobbin 18. When the doffing is effected automatically an extension on arm 9b engages with an inclined surface on an extension of arm 4 such that as bracket 6 pivots about intermediate coupling 5 the extension is displaced along the inclined surface and results in the pivoting of arm 9b axially away from the bobbin. The locking mechanism may comprise (Fig. 1) a .spring urged bolt 24 carried by arm 4 engaging in a notch 25 of bracket 6 and releasably with the aid of hand lever 28. Alternatively, as in Figure 2, the locking mechanism locks a parallel motion device rather than the coupling itself. When arm 41 is pushed into U-shaped hand lever 39 42 disengages from behind notch 43 on arm 4 and the parallel motion device pivots through arm 37 about pivot 38.  Two such bobbin cradle arrangements may be positioned above two spindles of a tow for one twisting machine having a common delivery conveyor.
Patent GB-1291628-A (GB)
Title: Machine for placing in position the hands of timepieces or the needles of measuring instruments
Inventor: STUDER ERIC
IPC: G04D1/08
Filed: 1970-09-07
Abstract: 1291628 Indicating apparatus UNIVERSO S A 7 Sept 1970 [8 Sept 19691 42737/70 Heading G1J [Also in Division G3] A machine for placing in position the hands of timepieces or needles of measuring instruments comprises a base-plate 1 on which a table 2 is rotatably mounted so that watch or instrument retaining means 3 are brought successively opposite work stations 4-6 and a loading and unloading station 7. Each work station includes a pillar carrying a rod 9 on which a sleeve 10 and an arm 10a are axially and rotatably movable. Each arm 10a carries a suction member 19 for picking up a hand or needle from the top one of a stack of loaded trays 26 and placing it in position on a movement held in a corresponding retaining means 3. Each tray 26 is loaded with two rows of hands or needles and each stack is borne by a carriage 30 which is advanced longitudinally by an escapement mechanism, Fig.6 (not shown). The carriage is displaced transversely when a row of hands or needles is exhausted, and the top tray of each stack is automatically removed when empty, Fig. 5 (not shown).
Patent GB-934308-A (GB)
Title: Improvements in or relating to electrical plugs and sockets
IPC: H01R24/12
Filed: 1961-11-29
Abstract: 934,308. Two-part couplings. M. CLAUSEN, [trading as DANFOSS VED. ING. M. CLAUSEN]. Nov. 29, 1961 [Dec. 3, 1960], No. 42757/61. Class 38 (1). An electrical socket device 4 or 6 adapted to receive pins of a cooperating plug 2 has socket portions 16, the axes of which are disposed normally to the axes of supply wire receiving terminals 161, the sockets 16, the terminals 16<SP>1</SP> and parts of the supply wires being accommodated in grooves or recesses 14 (Fig. 2, not shown) in a housing 13 within which they are secured by a cover 17 formed with one or more supply wire receiving apertures 22. The embodiment shows a male plug member welded to the wall 1 of the capsule of a sealed compressor of a refrigerator and engaging two socket devices.
Patent GB-1394832-A (GB)
Title: Method for casting metal in a shell mould
IPC: B22D18/06
Filed: 1971-09-14
Abstract: 1394832 Casting in shell moulds L N HOCKING 8 Sept 1972 [14 Sept 1971] 42786/71 Heading B3F [Also in Division C7] A method of casting metal in a shell mould 6 comprises maintaining a sub-atmospheric pressure within the mould and using a reducing gas to effect reduction of any oxides of the metal while the latter is molten. The mould 6 may be contained within a vacuum chamber 1 provided with a removable base 4 and a pipe 26 through which a reducing gas, e.g. hydrogen or a hydrocarbon, optionally mixed with an inert gas, is passed. A metal charge 16 is placed within a crucible 12 and melted by an induction coil 20 in such a way that the lower portion of the charge is the last to melt, the reducing gas being directed on to the metal in the crucible 12 during the melting process. A subatmospheric pressure is maintained in the vacuum chamber 1 by a pump attached to an outlet 24.
Patent GB-1279051-A (GB)
Title: Medical vibrating device
Inventor: POST ARNOLD HENDRIK FREDERIK
IPC: A61H21/00
Filed: 1970-09-08
Abstract: 1279051 Vibrating device A H F POST 8 Sept 1970 [11 Sept 1969] 42859/70 Heading A5R A vibrating device comprises a body member 3 of soft resilient material, such as foamed plastics, and enclosing an electro-mechanical vibration source 1, such as a motor rotated eccentric weight, the member 3 having a rounded tapered front end with a two-core current supply lead 7 emerging from a rear end, and a housing 9 enclosing a current source, such as a battery, and regulator, such as a rheostat, and connected to the member 3 only by the lead 7. The member 3 may have a concave rear end and be sealed in a closed end of a rubber sleeve 4 by a rubber foil 5. Alternatively the member 3 may be covered with rubber foil by dipping and removably inserted in the closed end of a sleeve 4. A stiffening member 3a may be provided.
Patent GB-1405347-A (GB)
Title: Electronic flash device
IPC: G03B7/16
Filed: 1973-09-13
Abstract: 1405347 Flash attachments FRANKE & HEIDECKE GmbH 13 Sept 1973 [21 Oct 1972] 43082/73 Heading G2A An electronic flash device which fits on to a camera has an on-off switch with a protuberance which, in the "on" position, can extend into the camera for engagement with an exposurecontrolling means. As shown, the flash device I is secured to the camera 2 by a rod 18. Flash contacts 3, 4 can be connected or disconnected by a lug 5 of the on-off slider switch 6. This has a protuberance 7 which can enter into an opening in the camera housing, and can extend therein by a distance which can be varied by differing positions of switch 6, as located by a detent means 8. The camera has an automatic exposure-setting arrangement, in which a sensing pointer 11 is deflected according to the light received, and, just before the exposure is made, pointer 11 is clamped against a table 13 by a toothed member 14, and the transmission lever 15 sets the aperture or shutter speed accordingly. When switch 6 is in the "off" position, protuberance 7 is retracted so that it takes no part in setting the exposure. When it is in the "on" position, protuberance 7 engages against a spring-loaded lever 9 carrying a pin 17, which in turn engages another sensing pointer 12 which moves with sensing pointer 11. Thus an aperture stop corresponding to the guide number is set.
Patent GB-1279656-A (GB)
Title: A method of and apparatus for determining the moisture content of moving material
IPC: G01N25/56
Filed: 1969-09-02
Abstract: 1279656 Measuring moisture content electrically SINA A G FR INSTRUMENTIERUNG UND AUTOMATIK 2 Sept 1969 [6 Sept 1968] 43339/69 Heading G1N The moisture content of a travelling paper web 10 is measured by placing a cover 11 of a non- hygroscopic thermally insulating material close to the surface of the web and drawing air from between the cover and web past a heating or cooling device and into the measuring instrument. Preferably, the cover consists of a plastics polymer plate 12 lined with a polymeric foam 13 having closed pores, and downwardly projecting runners 15. The cover may be curved if the web is passing over a rotating cylinder. The cover is rectangular and the spacing between it and the web is less than half the width of the cover and may be as little as one hundredth the width of the cover. A blower 27 sucks air upwards through orifice 20 and pipes (28, 34) Fig. 3 (not shown) lined with non-hygroscopic thermally insulating material (31, 43) and containing a filter (32), heater (51) and/or cooling device and a hygrometer (45). A resistance thermometer (46) is connected in a circuit Fig.4 (not shown) for controlling the heater (51) to maintain the temperature of the air reaching the hygrometer constant or a constant difference, which may be zero, between the temperature of the air reaching the hygrometer and the temperature of the web. A second resistance thermometer (70) may be in a separate lined pipe (61) connected to the blower or in the inlet end of the same pipe (28). The hygrometer 45 and thermometer 70 may be connected as shown in a bridge circuit, Fig.5, which may be self-balancing. It may control a dryer. Alternatively, thermometer (46) may be connected in the bridge circuit instead of hygrometer 45, a meter being connected to hygrometer 45. For calibration purposes the cover may be placed over a bath of a saturated salt or sulphuric acid solution Figs.6 and 7 (not shown).
Patent GB-1059720-A (GB)
Title: Circuit arrangement for stabilizing a high tension voltage derived from a television line scan generator
IPC: H04N3/18
Filed: 1965-10-14
Abstract: 1,059,720. Converting. FERNSEH G.m.b.H. Oct. 14, 1965 [Oct. 15, 1964], No. 43663/65. Heading H2F. [Also in Division G3] A stabilized H.T. voltage at an output terminal UH is derived from a secondary winding 5 of a television line-scan transformer by way of a rectifier 6, the winding 5 being also connected to the secondary winding 10 of an auxiliary transformer having its primary winding 9 supplied by way of a switching transistor 11 from a further secondary winding 7 of the line scan transformer, which further winding 7 also supplies the deflector coils 8 of the television set. A control voltage derived from a voltage divider 12, 12a and proportional to the H.T. output voltage is applied to the base of transistor 11. The arrangement is such that transistor 11 is rendered conductive when the H.T. output voltage falls below a predetermined value; a current-pulse then flows in winding 9, producing in winding 10 a corresponding voltage pulse which is added to the voltage of winding 5 whereby the output at terminal UH is restored to its original value. Transistor 11 thus operates in a switching mode to stabilize the H.T. output of the line scan transformer. The winding 10 may be associated with a voltagemultiplier circuit, and the control signal may be applied to the base of transistor 11 by way of further amplifying transistors (Fig. 2, not shown).
Patent GB-873795-A (GB)
Title: Apparatus for storing, handling and/or utilizing highly radioactive materials
IPC: G21F5/02
Filed: 1959-12-24
Abstract: 873,795. Containers for radioactive materials. BERNAS, R. Dec. 24, 1959 [Dec. 30, 1958], No. 43836/59. Class 98(1) Apparatus for storing and handling a radioactive source, in which the source is movable between a protected inoperative position and an exposed operative position, comprises a radiation-sensitive element located near the protected position, with means responsive to said element for indicating that the source is or is not at said protected position. In the form shown, the radioactive source is contained in a carrier 40, which is supported at each side by rods 12, 13. When not in use, the carrier is positioned at the centre of a mass 36 of radiation-absorbing material such as lead. Surrounding it in this position is a central core 38 of tungsten. When required for exposure, the carrier is slid along a duct 14. The radiation-sensitive cell 16 is located so as to be close to the carrier 40 when in its central inoperative position. The cell is inserted through a chimney 35 in the protective mass, at the end of a rod 33 of lead. It is preferably of the type having a resistance which varies with the radiation received, e.g. cadmium sulphite or gadolinium cells. A conductor 41 connects the detector 16 to a suitable measuring instrument via terminal 42. A filter or screen 34 may be interposed between the source and the detector.