baber/WOPTO huggingface dataset:
Patent GB-1376158-A (GB)
Title: Pattern generating device and method of recording a generated pattern
IPC: G11C13/04
Filed: 1971-12-09
Abstract: 1376158 Modulating light HITACHI Ltd 9 Dec 1971 [9 Dec 1970 25 Dec 1970] 57237/71 Heading H4F [Also in Division G2] A light modulating element comprises an X, Y or Z cut plate of irregular ferroelectric material, i.e. one in which application of an electric field or mechanical stress above a threshold value results in a reversal of the electric polarization along the c-axis and an effective interchange between the a and b axes, and means for applying such an electric field along the c-axis, the plate having a thickness given by l=#/(#n)(p + ¢), where p is integral or zero, so that the phase of light incident normally thereon, with a plane of polarization parallel to the a or b axis, and having a wavelength # (#n being the difference in refractive index for light of wavelength # and having planes of polarization parallel to the a and b axes respectively, i.e. the plate thickness equals that of a #/2 Z cut plate of the material, irrespective of whether the plate is actually X, Y or Z cut) is changed by # when the plate is switched from one electric polarization state to the other. In a modification for use in a double pass system, the plate thickness is half that of a #/2 Z cut plate, Figs. 8 and 9 (not shown), The phase modulation is said to be less sensitive to deviations of the light beam from normal incidence than similar prior art intensity modulators comprising a fixed and a reversible #/4 plate in series between polarizers, the Y-cut plate being superior to the Z cut plate in maintaining the modulator depth. An array of such elements is therefore useful in holographic systems for example, and contours of light intensity, produced by such a system having a single element, are plotted as a function of deviation # from normal incidence in different planes (#) for a comparison between the present and pior art systems, Figs. 2a, 2b and 3 respectively (not shown). Apparatus for forming holograms and comprising such an array is described with respect to Figs. 7a, 8 and 9 (not shown), and also described is a method wherein a random pattern is superimposed on the information pattern generated by the matrix of elements whereby the light intensity distribution on the hologram recording medium is rendered more even. The electric field may be applied by electrodes on the c-faces of the crystal plate, or via an electron beam. The irregular ferroelectric material may be KDP Rochelle salt, ammonium cadmium sulphate, methyl aluminium sulphate dodecahydrate, but particularly Gd 2 (MoO 4 ) 3  and isomorphs of the formula R x R<SP>1</SP> 1-x ) 2 O 3 . 3Mo 1-e W e O 3  where R and R<SP>1</SP> are each rare earth elements 0#x#1 and 0#e#0À2.
Patent GB-1164480-A (GB)
Title: Aniline Derivatives and their use as Herbicides
Inventor: STEINBRUNN GUSTAV
IPC: A01N37/22
Filed: 1966-12-23
Abstract: 1,164,480. Herbicides containing acid anilides. BADISCHE ANILIN-& SODA-FABRIK A.G. 23 Dec., 1966 [24 Dec., 1965], No. 57634/66. Heading A5E. [Also in Division C2] Compounds of the general formula:- in which X is hydrogen, thiocyano, halogen, nitro, trifluoromethyl or alkyl; R is an unsubstituted or substituted aliphatic radical and R<SP>1</SP> is a substituted alkyl radical or an alkinyl radical, are used for controlling unwanted plant growth by treating the plants or soil in which they grow with the compounds in the form of solutions, emulsions, suspensions or dusts.
Patent GB-1187340-A (GB)
Title: 4-Benzylpiperidine Derivatives
Inventor: CARRON CLAUDE LOUIS CLEMENT
IPC: C07D211/16
Filed: 1968-12-05
Abstract: 1,187,340. Aminoalkyl ester of 4-benzylpiperidine-1-carboxylic acid. SOC. ANON. DES LABORATOIRES ROBERT ET CARRIERE. 5 Dec., 1968 [5 Dec., 1967; 30 Aug., 1968; 8 Oct., 1968], No. 57925/68. Heading C2C. Novel esters of formula wherein A is straight or branched alkylene, and R and R<SP>1</SP> are each H, alkyl or aralkyl or together with the adjacent N form a monocyclic saturated heterocyclic radical, and acid addition salts, are prepared either by esterification of the acid chloride or ethyl ester with an alcohol of formula HO-A-N.R.R<SP>1</SP>, or by reaction of 4- benzyl-piperidine with a haloformate of formula X-COOA-Z where X is halogen and Z is halogen or -NRR<SP>1</SP>, followed where Z is halogen by reaction of the product with the amine HNRR<SP>1</SP> and in both cases optionally followed by salt formation. 1 - Chloro - 2 - propyl 4 - benzylpiperidine - 1- carboxylate is prepared by reaction of 4-benzylpiperidine with 1-chloroisopropyl chloroformate. Pharmaceutical compositions in conventional forms for oral, rectal and parenteral administration comprise an above novel compound and a carrier or coating and are used in the treatment of disturbances of cardiac rhythm.
Patent GB-1418527-A (GB)
Title: Intelligible crosstalk protective system for time division switching centres
IPC: H04Q11/04
Filed: 1973-12-14
Abstract: 1418527 Multiplex P.C.M. systems INTERNATIONAL STANDARD ELECTRIC CORP 14 Dec 1973 [15 Dec 1972] 58011/73 Heading H4L In a time division multiplex P.C.M. switching centre, means are provided for preventing intelligible crosstalk, in which some or all of the amplitude representing bits are inverted in code conversion units at the input only when the polarity bit has a predetermined value and at the output the said bits are inverted again in similar conversion units. This prevents the production of a recognizable signal from the interfering signal at the switching centre when the correct channel signal is momentarily silent. As described, speech signals from thirtytwo subscribers' lines are sampled at 8 kHz and each sample is converted into a coded combination comprising one bit indicating polarity and seven bits defining the amplitude, these combinations being time division multiplexed into a primary multiplex group. Eight such primary groups are then supermultiplexed into a secondary multiplex group. A switching centre selects the time channels on an incoming secondary group and routes them to appropriate time channels of the outgoing secondary group, a similar path being set up simultaneously for the other direction. The outgoing secondary group is super-demultiplexed into primary multiplex groups and each of these is demultiplexed into the eight primary groups. The code conversion units are connected in the links between the multiplexers and the supermultiplexer and in the links between the superdemultiplexer and the demultiplexers, all the amplitude bits being inverted whenever the polarity bit is binary 0.
Patent GB-1208647-A (GB)
Title: Improvements in and relating to photographic processing apparatus
IPC: G03D7/00
Filed: 1968-12-09
Abstract: 1,208,647. Photographic developing apparatus. RICOH K.K. Dec.9, 1968 [Dec. 15, 1967], No.58430/68. Heading G2A. A photographic ammonia gas developing apparatus, downstream of a photo-copying machine, is provided with means for varying the total amount of ammonia pumped from a reservoir 12 to an evaporation tray 6 in dependence on the area of a photo-sensitive sheet passed through the developing apparatus. A row of switches 13 is arranged across the path of the sheet, the number of switches closed and the length of time of closure varying the time between successive discharges of a capacitor (16) Fig. 2 (not shown). Each discharge results in the closure of a circuit containing a solenoid 10 which, when energized, causes the pump 9 to supply ammonia. If the photo-sensitive sheet is relatively wide, there will be at least one pumping action as it passes through the apparatus, whereas for narrow sheets, several sheets may be fed through before the capacitor discharges.
Patent GB-1411238-A (GB)
Title: Method of determining the burn-up of nuclear fuel elements
IPC: G21C17/06
Filed: 1972-12-19
Abstract: 1411238 Testing nuclear fuel elements KERNFORSCHUNGSANLAGE JULICH GmbH 19 Dec 1972 [23 Dec 1971] 58567/72 Heading G6C  Burn-up of a nuclear fuel element, having fuel disposed in a graphite cladding or matrix, is determined (preferably by evaporating constituents of the surface of the element in an electric arc and analysing the arc), by comparing the intensities of one or more carbon lines in the U.V. spectrum and one or more beryllium lines in the U.V. spectrum. Analysis is effected by the use of electron multipliers connected to the U.V. spectrograph so that the ratio of the charge through a multplier due to the carbon line(s) to that through a multiplier due to the beryllium lines is a measure of the degree of burn-up. The beryllium results from the reaction  During irradiation of the element in a reactor. The beryllium lines used in analysis occur at 2348À61, 3130À42 and 3130À07.
Patent GB-1419390-A (GB)
Title: Pipeline inspection pig
IPC: G01M3/28
Filed: 1972-12-20
Abstract: 1419390 Pipeline flaw detectors INSPECTION TECHNOLOGY DEVELOPMENT Inc 20 Dec 1972 [27 Dec 1971] 58880/72 Heading G1N The invention relates to a pipeline inspection pig wherein the scanning signals are recorded on a film running at a speed proportional to the speed of the pig, in order to locate the position of flaws. PREFERRED SYSTEM: The scan may be ultrasonic, or eddy current, but as described is by "magnetic leakage". The recorder is of the electro-photographic type as described in U.S. Specification 3828356 and is housed in the pig. The speed of the film is controlled by a servo loop responsive to "pig velocity signals." The brightness of the writing L.E.D is related to speed by a bias generator (184) coupled to the film speed tacho (134). The speed is detected by the width of a pulse produced by two axially spaced rings of sensors triggering and resetting a flip-flop as they pass the welds between pipe lengths, and the pulse is integrated to produce a speed signal which is updated at each weld. The recorder may be stopped if an updating signal is not received within e.g. 30 seconds (indicating the pig is stuck or very much slowed perhaps by crushing of the pipe). The control may also respond to speed changes feeding an accelerometer signal to the integrator. DETAILS. As shown Fig. 1 the pig comprises a front towing section 14 housing the power-pack and shackled to the sensor carrier 16 which also houses the recorder. The two rings of sensors are oppositely skewed to inhibit rotation. Each shoe has its own U-shaped permanent magnet (96) Fig. 4 (not shown) to magnetize the pipe, with the sensor mounted between the poles. Stainless steel wear-plates are provided on the shoe-faces engaging the pipe. The skewed mounting of the shoes also ensures that at least one set will produce a flux across the flaw. (A spiral crack will be detected by onset only). Each shoe signal is separately recorded, and a pendulum attitude sensor actuates a potentiometer to record a roll signal.
Patent GB-1211265-A (GB)
Title: Improved plural pendant vehicle arresting system
Inventor: NIEMKIEWICZ J I
IPC: B64F1/02
Filed: 1968-12-13
Abstract: 1,211,265. Aircraft arresting unit. E. W. BLISS CO. 13 Dec., 1968 [13 Dec., 1967], No. 59441/68. Heading B7G. An aircraft arresting system consists of two longitudinally spaced vehicle engaging cables 16 and 20 extending transversely of the runway, two energy absorbing units 40 and 42, and automatic connecting means 74, 74<SP>1</SP>; which continuously connect cable 16 to energy absorbing unit 40 and which connects the second energy absorbing unit 42 to cable 16 or cable 20 depending upon which of the two activates the connecting means. Each automatic connecting means can consist of two hook and eye sets 100 and 104, and, 88 and 90, Fig. 2, perpendicular to one another; each hook being connected by rod or cable to one of the engaging members and both eyes being connected by way of plates 77, to the second energy absorbing unit. When one of the cables 16 or 20 is moved the corresponding hook moves and links with its eye, so connecting up the second energy absorbing unit.
Patent GB-1408709-A (GB)
Title: Retouching of photosensitive lithographic printing plates
IPC: G03F7/26
Filed: 1973-12-21
Abstract: 1408709 Photo-lithography FUJI PHOTO FILM CO Ltd 21 Dec 1973 [26 Dec 1972] 59505/73 Heading G2M Photo-lithographic plates of the o-quinonediazide type are retouched with a liquid composition which comprises at least one 3-6C lactone and removes any undesired image areas. The liquid preferably contains 30-100% of the lactone and may also contain an acid (e.g. phosphoric, lactic or levalic), a viscosity-increasing agent (e.g. polyvinyl pyrrolidone, methyl-, alkoxy- or carboxymethyl-cellulose or silica), a surfactant, a solvent (e.g. xylene or solvent naphtha) and/or a dye (e.g. Crystal Violet or Safranine).
Patent GB-1298560-A (GB)
Title: Work locating and rotating apparatus
Inventor: KHROLENKO VIKTOR FEDOROVICH
IPC: B24B41/06
Filed: 1969-12-05
Abstract: 1298560 Work-holders SPETSIALNOE KONSTRUKTORSKOE BJURO PO PROEKTIROVANIJU SHLIFOVALNOGO OBORUDOVANIA 5 Dec 1969 59576/69 Heading B3D [Also in Division H1] A device for locating and rotating a workpiece 4, e.g. a bearing raceway for grinding, comprises an abutment 21, Fig. 5, for locating the workpiece axially, supports 20 for locating the workpiece transversely of the axis of rotation, a driving element 29 for rotationally engaging the workpiece 4, and means for holding the workpiece 4 against the driving element 29 with a greater force than that acting against the abutment 21. A fixed bar 22 supports the abutment 21, and the element 29 is screwed to an axially movable part 27 of a magnetic chuck, slidably keyed to a spindle 25 having an input drive pulley 26. The part 27 and element 29 are each separated into annular portions by a non- magnetic liner 27a, and under the action of a magnet coil unit 31 the driving element portions are attracted against springs 32 into engagement with the workpiece 4; completion of the magnetic circuit through the workpiece 4 causes a strong driving engagement force. Alternatively, Fig. 7, two transverse supports 45 are provided on a bush 44 internally of the workpiece 4, three axial locating abutments 47 on a cup 46 being supported on a fixed bar 48. A magnetic driving element 53 is resiliently borne through an elastic diaphragm 57 by a rotary member 49, a coil unit 54 being provided. Further, Fig. 6 (not shown), three axial locating abutments (35) may be arranged radially outwardly of the magnetic driving element (36) limited universal pivoting of the driving element relative to the abutments (35) being allowed, or the device may be arranged to facilitate internal grinding, Fig. 9 (not shown).
Patent GB-1217058-A (GB)
Title: Improvements in or relating to window constructions
IPC: E06B3/46
Filed: 1968-12-17
Abstract: 1,217,058. Draining water from sills of sliding windows. A. KNAG A.S. 17 Dec., 1968 [20 Dec., 1967], No. 59999/68. Heading E1J. A window sill constructed to drain water from the sashless panes 24, 25 sliding in guiding grooves in a P.V.C. or other non-metallic sill of profile form located in an outer building wall 40 has its profile formed to define at the inside face of the pane 24 and adjacent the lower portion of the groove, a chamber 26 communicating with the outside atmosphere through an opening 42 adjacent the outside of the wall, the bottom of the groove having a hole 33 for directing the water to the chamber 34. The chamber 26 is formed by the width of the groove at its bottom portion being wider than the pane thickness, and its upper edges are formed with lips 30, 31 bearing against opposite sides of the pane and the chamber 26 has an upper lateral expansion 35 of the groove located below the tongue 31 and communicates with the frame chamber 34 and the outside atmosphere through the hole 36 in the wall of the said extension 35. A supporting plug 43 preferably of metal supports the weight of the panes on a lower portion of the sill which itself is supported by ribs 44 on the wall 40. The portion of the sill disposed inwardly of the groove forms an insulation chamber 38. In an alternative embodiment (Fig. 2, not shown) the chamber is an inner chamber separated from the sill opening by an outer chamber, the chambers being divided by the frame.
Patent GB-1221239-A (GB)
Title: Process for polymerizing and copolymerizing cyclic esters and the resulting polymers and copolymers
Inventor: MILEO JEAN CLAUDE
IPC: C08G63/82
Filed: 1968-12-19
Abstract: 1,221,239. Polymerizing cyclic esters. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 19 Dec., 1968 [22 Dec., 1967], No. 60484/68. Heading C3R. Cyclic esters are polymerized in the presence of a catalyst obtained by reacting a compound of formula with a compound of formula YO-M-Z, where M<SP>1</SP> is a trivalent metal, M a divalent metal, Z an OR 3  radical or an acyloxy radical, one of X and Y being an R 4  radical, the other being an acyl radical, R 1  to R 4  being monovalent hydrocarbon radicals. The catalyst may first be reacted with an alcohol or water. Preferably, M<SP>1</SP> is aluminium and M is zinc. The cyclic esters may be copolymerized with one or more comonomers of formula wherein A is an epoxide or episulphide group, and R<SP>1</SP> 1  to R<SP>1</SP> 4  are hydrogen or optionally substituted monovalent hydrocarbon radicals. The polyester may be prepared in the presence of or reacted with a diol, a polyol, or a dicarboxylic acid. The polymeric products are suitable as plasticizers for vinylic polymers or for manufactur ing polyurethanes. In the examples, the polymers were prepared from γ,γ-dimethyl-#- valerolactone, e-caprolaotone and #-propiolactone, and mixtures of the first two with 1,2- epoxypropane.
Patent GB-1286299-A (GB)
Title: Improvements in mattresses of changeable resilience
Inventor: LENZ KAROLINE
IPC: A47C27/14
Filed: 1969-12-12
Abstract: 1286299 Mattresses K LENZ 12 Dec 1969 60639/69 Heading A4M A mattress comprises upper and lower parts f, g, with thicker marginal portions f 1 , g 1 , and defining between them a cavity which receives a plurality of transversely extending, elongate slabs a of resilient framed material which are interchangeable or removable to vary the resilience of the mattress. A rubber strip d 1  extends longitudinally between the centres of the mattress ends and locates notched ends (d 2 ) Fig.5 (not shown) of the slabs d. The margins f 1 , g 1  may be reinforced, e.g. by steel strip b. A cover h for the mattress comprises separable parts interconnected by a sliding clasp fastener c.
Patent GB-1340161-A (GB)
Title: Tenter clip
IPC: B25B5/08
Filed: 1971-12-31
Abstract: 1340161 Tenter clips KANESHIGE TENTER CLIP CO Ltd 31 Dec 1971 [26 Feb 1971]  60987/71 Heading D1S [Also in Divisions E2 and E5] A tenter clip comprises a sheet support 3, a pressure element 9 movable into a clamping relationship with the support and carrying a pressure member 10 having a clamping surface 21 the member 10 being mounted for limited rotation about a longitudinal axis to present the clamping surface 21 to the support 3, whereby on moving the pressure element 9 to a clamping position to clamp a sheet 17 of material between the member 10 and support 3, the clamping pressure is applied uniformly to the sheet 17. Pressure element 9 is connected to a lever arm 7 by means of a ridge 14 through which a pin 16 passes. Pressure member 10 is located in a part circular groove 8 and is fixed against longitudinal movement by means of a pin 20 passing through a groove 19 in member 10 and an aperture in element 9. The clamping surface 21 may be a pattern saw-tooth or consist of a number of projections.
Patent GB-648018-A (GB)
Abstract: 648,018. Electric totalizators. UNION TOTALISATOR CO., Ltd., and HANDLEY, J. Nov. 8, 1948, No. 28919. [Class 106 (i)] In a totalizator wherein an assigner switch hunts for positions marked by ticket-issuing machines waiting to register bets, and in which the assigner is stopped at each marked contact until the bet corresponding thereto is registered, the hunting speed of the assigner is normally limited to a set speed but is temporarily increased immediately after a bet registration to compensate for the time of the registration and so achieve a substantially constant overall ticket issuing speed. The assigner switch comprises a rotating arm 4 carrying wipers 6, 7, 8 engaging concentric rings of contact segments 1, 2, each radial pair 1, 2 being associated with an individual ticket machine. A ticket issuing machine waiting to register a bet earths the respective segment 2 so that when the wipers 6, 7, 8 reach the position in question the earth connection is extended by wiper 7 over a further wiper 10 and slip-ring 13 to energize a latching magnet 16 which through its armature 18 and linkage 19, 20, 21 rocks a pawl 22 to stop the assigner by engaging a ratchetwheel 23 normally driven with the arm 4 through a slipping clutch 29. At the same time the earth on wiper 6 is extended to the central office to register the bet whereupon a revertive earth is applied from the office through wiper 8 to the segment 2 to initiate the ticket issuing operation after which the assigner is released to hunt for the next marking. The assigner wiper arm 4 is driven by a motor 5 through gears 27, 28, shaft 26 and slip-clutch 29. Concentric with the drive-shaft 26 is a ratchetwheel 30 driven by the motor through gearing 31-34 at a speed slightly less than that of shaft 26. The wiper arm 4 carries a pawl 37 which during normal hunting engages with a tooth of the ratchet-wheel 30, so that the arm 4 is driven by the slip clutch at the speed of the ratchet-wheel 30, the clutch slipping slightly because of the slower speed of the ratchet 30. When a bet is being registered the wiper arm 4 is held stationary but the ratchet-wheel 30 continues to rotate, so that when the arm 4 is released after registration of the bet it is driven at the greater speed of the shaft 26 until the pawl 37 catches up and again locks with the ratchet-wheel, when its speed is reduced to the normal hunting speed. Specifications 412,675, 468,381 and 572,103, [all in Group XXXVIII], are referred to.
Patent GB-713271-A (GB)
Abstract: 713,271. Bakers' ovens. VICARS, Ltd., T. & T., NAYLOR, J. F., and LEWIS, C. Y. Jan. 23, 1953 [Jan. 2, 1952; July 15, 1952], Nos. 111/52 and 17788/52. Class 51 (2) In a baker's oven in which the comestibles pass through baking zones heated directly and/or indirectly by combustion gases in a substantially closed cycle, a conveyer 11 passes between a succession of heating elements each comprising a number of superposed flow and return heating ducts 15 and 14 with fan chambers 22 and oil or gas burners 16 with shields 20 as in Specification 665,767, dampers 23 being provided to direct the hot gases either through the heating ducts 14 or through the baking chamber zone 13 or both. Auxiliary dampers 27 are provided to vary the flow from the ducts 15 into the baking zone when the dampers 23 close the ducts 14, and dampers 24 and 25 are provided in the ducts 14 and in the baking zone 13 respectively to control the passage of the gases back to the fan chambers 22. Further dampers 28 in the ducts 15 control the overspill of the circulating gases to a duct 29 and controlled outlets 30 enable baking steam to be exhausted through ducts 31, 32 by a fan 33. Pivoted deflectors 34 are provided at intervals along the baking zones 13 to direct the hot gases on to the food. In a modification, Fig. 4a (not shown); fans disposed in the middle of each oven section blow heating gases in opposite directions. Another modification, Fig. 5 (not shown) has a dual discharge fan unit in the middle of an oven section, discharging into flow ducts extending across the width of the oven and enclosing return ducts, dampered openings being provided at intervals to direct heating gases into the oven chamber as required.