baber/WOPTO huggingface dataset:
Patent GB-1378788-A (GB)
Title: Fluid flow control apparatus
IPC: B60G21/10
Filed: 1972-05-11
Abstract: 1378788 Preventing lateral canting HONDA GIKEN KOGYO KK 11 May 1972 [12 May 1971] 53151/73 Divided out of 1378787 Heading B7D [Also in Division G3] In control apparatus for controlling fluid flow in a vehicle suspension system so that rolling of the vehicle body is reduced when the vehicle runs around a curve as described in the parent Specification 1,378,787, a weight 3 is displaceable against the centring effect of springs 6, 6<SP>1</SP> by centrifugal force acting on the vehicle to cause a lever 2 to obstruct one of orifices 17 so that pressure of fluid supplied from a pump 12 and accumulator 11 increases at one end of a valve spool 8, the pressure differential thus created displaces the spool 8 against spring-loading so that pressure fluid is directed through a line 15 or 16 into one of chambers b, c in a piston and cylinder actuator 22, 23, and feedback mechanism F connected to the rod 24 of the piston 23 acts on the weight 3 through the springs 6, 6<SP>1</SP>.
Patent GB-1527442-A (GB)
Title: Process and apparatus for the manufacture of identification elements and identification elements manufactured accordingly
IPC: G03H1/04
Filed: 1976-12-21
Abstract: 1527442 Holographic identity documents HOECHST AG 21 Dec 1976 [22 Dec 1975 20 Oct 1976] 53295/76 Heading B6A [Also in Division G2] An identity document bears both indicia, and an area of photo-sensitive recording medium durably affixed thereto, the recording medium being holographically exposed to the indicia. As shown in Fig. 1 laser light is split at 2 and the object beam transmitted via semireflector 10 to the indicia 8. The light modulated by the indicia is reflected by semireflector 10 to the photo-sensitive surface 7 where it interferes with the reference beam 3. It is stated that as the holographic recording is performed subsequent to the application of both the indicia and the recording medium 7 to the substrate, there is no possibility of error in matching hologram to indicia. Many detailed constructional features of documents according to the invention are given, including embodiments wherein respective holograms record front and back surfaces of the substrate. Such multiple holograms may be separated or superimposed, and may reconstruct at separate locations for a single incident reconstruction beam.
Patent GB-1107460-A (GB)
Title: Self-levelling device for receiving, storing and dispensing articles
Inventor: MASLOW LOUIS
IPC: B65G1/07
Filed: 1966-11-29
Abstract: 1,107,460. Self-balancing platforms; spring drums; reels. AMERICAN MACHINE & FOUNDRY CO. 29 Nov., 1966, No. 53314/66. Headings B8B and B8M. A self-levelling device for maintaining the top of a stack of articles at a constant level as articles are removed from or added thereto, comprises a carrier assembly 40 vertically movable in a well 14 formed in a table top 13, and an endless suspension band 30 at opposite side ,of the carrier 40. Each band 30 passes over and is clamped to, a pair of studs 20 mounted on supporting structure 12 on the table top 13 and extends around pulleys 48 on the carrier 40 to a reel 70 on the carrier. Each reel 70 is of the squirrel-cage type and comprises two discs between which bridging bosses are clamped to form the drum of the reel and around one of which bosses the band is looped. The reel drum diameter is variable by means of the bridging bosses engaging radial slots in one disc and engaging a spiral slot in the opposite disc so that rotation of the latter disc relative to the former causes radial movement of the bosses. The spiral grooved discs at both sides of the carrier assembly are keyed together for like rotation and the two radial grooved discs are fixed together. A torsion spring coaxially extending between the two reels 70 is in connection at one end with the radial grooved discs and at the other end with the carrier assembly so that rotation of the said discs relative to the carrier initially tensions the spring to bias the carrier assembly into the elevated position.
Patent GB-538172-A (GB)
Abstract: 538,172. Sliding-clasp fasteners. SPITZ, E. Feb. 9, 1940, No. 2487. [Class 44] In a sliding-clasp fastener, the fastening elements are wire loops 16 bent at 17, 18 to interlock both longitudinally and laterally. The bends may take various forms, and the wire may be flattened. The loops may be part of a helix threaded through the tapes 14, and are all of the same shape.
Patent GB-1242596-A (GB)
Title: Stabilized aqueous enzyme preparations
Inventor: MCCARTY CHARLES BRUCE
IPC: C11D3/386
Filed: 1968-11-15
Abstract: 1,242,596. Enzyme compositions. PROCTER & GAMBLE CO. 15 Nov., 1968 [15 Nov., 1967], No. 54244/68. Heading C3H. [Also in Division C5] A stabilized aqueous enzyme preparation comprises by weight (a) from 65 to 97% water, (b) 0.001 to 1.0% protease or α-amylase or a mixture thereof, (c) 2 to 27% of one or more stabilizers selected from (1) monohydroxy alcohols containing 1 to 4 carbon atoms; (2) alkoxymonohydroxy alcohols of formula wherein R 1  is alkyl or alkoxyalkyl containing 1 to 8 carbon atoms and R 2  is an alkylene group of 1 to 4 carbon atoms; (3) dialkyl glycol ether of formula R 3 O[CH 2 CH 2 O] x R 4  wherein R 3  and R 4  are each alkyl of 1 to 4 carbon atoms and x is 1 to 10; (4) heterocyclic oxyether in which the ether oxygen, together with the carbon atoms, forms a heterocyclic ring; (5) dialky formamides of formula HCO-N(R 3 )(R 4 ) wherein R 3  and R 4  are C 1  to C 4  alkyl; and (6) dialkylketones of formula R 3 -CO-R 4  wherein R 3  and R 4  are C 1  to C 4  alkyl and (d) up to 15% of a non-ionic detergent, a zwitterionic detergent or a mixture thereof. The enzymes may be alkaline proteases, e.g. subtilisin, elastase, keratinase, carboxypeptidase, amino peptidase, aspergillopeptidase A or B, and BPN<SP>1</SP> (obtained from Bacillus subtilis); neutral proteases, e.g. collagenase, chymotrypsin and trypsin; acid proteases, e.g. pepsin, papain and bromelin; α-amylases from animal, cereal, bacterial or fungal sources. The pH may be from 5.0 to 10.0. A preservative such as phenyl mercuric acetate may be present.
Patent GB-1454149-A (GB)
Title: Electromagnetic actuator for a printer
IPC: B41J9/133
Filed: 1974-12-17
Abstract: 1454149 Selective printing COMPUTER PERIPHERALS Inc 17 Dec 1974 [7 Jan 1974] 54390/74 Heading B6F A coil-and-armature assembly, used in a printer to propel a print hammer, is attached to a rigid support member by a detachable seating member with an elastomeric member between the assembly and the seating member. In the embodiment the elastomeric member is a planar layer sandwiched between the support member and the assembly. The elastomer may be neoprene, butyl or nitrile rubber.
Patent GB-1450488-A (GB)
Title: Light districution unit
IPC: G03B27/54
Filed: 1974-12-19
Abstract: 1450488 Photographic printing apparatus GROUP COLOR (W A) PTY Ltd 19 Dec 1974 [20 Dec 1973] 54889/74 Heading G2A A light box, which may form part of contact printing, enlarging and like apparatus, comprises a light source with a continously variable light filter, a matrix of light-transmitting rods or bundles of optical fibres 1 positioned to receive lighttransmitted by the filter and to transmit the light to the printing surface, and means mounted in association with each rod or bundle of fibres to control the amount of light transmitted therethrough. The box is used for shading negatives during printing, particularly colour negatives in aerial photography. As shown in Fig. 2, the apparatus includes a number of light-transmitting rods 11  made of e.g. transparent plastics material, which converge and come together in a spherical surface to receive light from a source (not shown), comprising a filter, e.g. a dichroic filter. The upper ends of rods 11 are opposite the lower ends of similar rods 12, and a shutter 14 (see also Fig. 3, not shown) is situated between each pair of rods 11, 12. Each shutter 14 is pivoted to cut off more or less of the light passing between the corresponding rods 11, 12. Shutters 14 are adjustable through linkage by discs 15 at the side of the box. The positions of disc 15 and the degree of filtering are quoted so that they can be reproduced at need. Each rod may be replaced by a bundle of optical fibres. In a printing unit, a length of roll film may pass over the light box for printing frame by frame. Light tight storage boxes (23), Figs. 4, 5, (not shown), may be provided for light-sensitive material. Paper for printing may be carried on an inverted roll easel (24) supported in a frame (25) slidable on tracks (26). The position of shutters 14 may be controlled electronically, and the filtering and shading information may be recorded on magnetic tape.
Patent GB-1337267-A (GB)
Title: Photographic camera
IPC: G03B19/04
Filed: 1970-11-20
Abstract: 1337267 Film transport EASTMAN KODAK CO 20 Nov 1970 [21 Nov 1969] 55214/70 Heading G2A In a camera mechanism for transporting film having perforations corresponding to the respective film areas, a means for sensing these perforations actuates an externally visible signal when a perforation is being sensed. The film strip 1 has a perforation 7 corresponding to each exposure area (see) Fig. 1 (not shown). The film is wound from left to right on to a take -up spool 9 rotated manually by a winding wheel 11. A sensing finger 15, biased towards the film strip, rides along its surface Fig. 2 (not shown) until it aligns with a perforation, which it then enters. A lever 17, pivoted on a pin 19, has a slot 21 in which engages a pin 25 on finger 15. Thus as finger 15 moves downwards into the perforation, lever 17 is pivoted clockwise, and a signal tab 23 at its end, which is located in a recess in wheel 11, comes into view through a slot 13 in the camera housing. This gives a visual indication that the film has been sufficiently wound on. Finger 15 is retracted again by means coupled to the shutter-actuating mechanism.
Patent GB-1367890-A (GB)
Title: Electrical systems
IPC: H02J7/14
Filed: 1970-11-24
Abstract: 1367890 Road vehicle electrical systems C A V Ltd 4 Nov 1971 [24 Nov 1970] 55718/70 Heading H2H An electrical system comprises an alternator 10, the output of which is controlled by a regulator 15 and rectified by diodes 11, 12 to charge a battery 13, a thyristor SCR being connected so as to short circuit the alternator output when it is rendered conductive by a high voltage surge at the output terminals of the alternator, a transistor TR3 being connected in parallel with the thyristor, the transistor being effective to ensure that after a predetermined time the thyristor becomes non-conductive. In normal operation a capacitor C is charged by way of a diode D and the transistor TR3 is held non-conductive by conduction of a transistor TR2. The appearance of a high voltage surge at the alternator terminals will render the thyristor SCR conductive thereby short circuiting the alternator output, the thyristor remaining conductive unless means are provided to extinguish it and this means is provided by, inter alia, the transistor TR3. After the thyristor has become conductive, base current for the thyristor TR2 from the voltage divider R1, R2 ceases and the transistor thus becomes non- conductive. At this point transistor TR3 becomes conductive the current flow therethrough being controlled by a constant current base circuit comprising the charged capacitor C, transistor TR1, Zener diode ZD1 and resistors R3, R4. As the alternator output current falls to a point where the transistor TR3 can carry all the alternator output current the current flow through the thyristor becomes insufficient to maintain conduction thereof and therefore becomes non-conductive. After the capacitor C has become discharged transistor TR3 turns off and normal operation of the alternator is restored.
Patent GB-1170268-A (GB)
Title: Semiconductor Bulk Oscillators.
IPC: H01L47/02
Filed: 1966-12-14
Abstract: 1,170,268. Semi-conductor oscillators. HEWLETT-PACKARD CO. 14 Dec., 1966 [15 Dec., 1965], No. 56050/66. Heading H3T. [Also in Division H1] A semi-conductor bulk oscillator comprises a homogeneous crystal 21, e.g. of GaAs, with ohmic contacts 23, 25, the current-voltage characteristic of the crystal including a negative resistance region. A frequency-determining circuit is operatively connected to the crystal, the equivalent resistance 33 of the circuit being equal to or greater than the negative resistance of the crystal 21 in its negative resistance region, so that the bulk material oscillates as a whole between a high field state and a low field state at a frequency determined primarily by the external circuit. If the equivalent resistance 33 were less than the characteristic negative resistance, the device would operate as a Gunn effect oscillator, with high field domains propagating through the crystal at the electron drift velocity. The external frequency-determining circuit may comprise a tuned cavity or a length of transmission line.
Patent GB-1179260-A (GB)
Title: Oxymethylene Polymers having Lateral Amino Groups and Process for Preparing them.
IPC: C08G2/00
Filed: 1967-12-14
Abstract: 1,179,260. Preparing oxymethylene polymers with lateral amino groups. FARBWERKE HOECHST A.G. 14 Dec., 1967 [14 Dec., 1966], No. 56833/67. Heading C3P. An oxymethylene copolymer obtained by copolymerizing 60 to 99À99% of formaldehyde or trioxan, 0À01 to 30% of a comonomer containing nitro groups and 0 to 20% of a cyclic ether and/or cyclic acetal in the presence of a cation-active catalyst, suitably at a temperature of -50 to +110 C., is treated to reduce the lateral nitro groups to primary amino groups. Suitable optional comonomers include ethylene and propylene oxides, epichlorhydrin, 1,4- butane diol-, diethylene glycol- or 1,4-butenediol-formal, 1,4-butane-diol-diglycidyl ether, oxacyclobutane and 1,3-dioxolan. Suitable reducing agents are H 2 /palladium, platinum or Raney-nickel, H 2 S/NH 3  or hydrazine hydrate/ alkali, sodium dithionite or Raney-nickel. In the examples, the catalyst for the copolymerization is BF 3 -(C 4 H 9 ) 2 O, the comonomers are trioxan - p - glycidoxynitrobenzene, trioxan - ethylene oxide - p - glycideoxynitrobenzene, trioxan - ethylene oxide - 1 - glycideoxy - 2,4 - dinitrobenzene and trioxan-ethylene oxide- 1-glycideoxy - 4 - nitronaphthalene, and the reducing agent is aqueous hydrazine hydrate solution/ Raney-nicbel.
Patent GB-1286458-A (GB)
Title: Improvements in or relating to optical apparatus
Inventor: BEACH ALLAN DAVID
IPC: G02B7/182
Filed: 1968-12-10
Abstract: 1286458 Mirror mounts NATIONAL RESEARCH DEVELOPMENT CORP 8 Dec 1969 [10 Dec 1968] 58687/68 Heading G2J  In a mirror mounting arrangement, a mirror 17 with a reflecting surface 7 is mounted on a spindle 8, and two tubes 1, 2, with flanged ends 3, 4, are arranged for rotation about the axis 14 of the spindle. The spindle 8 is itself mounted to members 16 which contain balls 15 which are arranged to be in rolling contact with the outer and inner surfaces of the flanges 3, 4 respectively, and the system has the property that if one tube is rotated relative to the other then the spindle 8 and reflecting surface 7 will also rotate, but at half the relative rate between the two tubes. If therefore the tubes and mirror are initially arranged such that a beam of light travelling along one tube is reflected along the other, then the beam will continue to be reflected so even if the tubes rotate relative to each other. The balls 15 may be replaced by cylinders, the contact surfaces may be non planar, and two or more such mounting systems may be arranged in series in order to provide more degrees of freedom.
Patent GB-1373737-A (GB)
Title: Connection of lined container bodies to lined pipe lengths
IPC: B65D25/14
Filed: 1972-12-21
Abstract: 1373737 Pipe joints SIGRI ELEKTROGRAPHIT GmbH 21 Dec 1972 [30 Dec 1971] 59256/72 Heading F2G  A lined duct 5 is connected to an aperture 2 in a lined container body 1, the periphery of the aperture having a ring 3 over which the body lining 4 is drawn with uniform stress, and the lining 7 in the duct being supported against that drawn over tne ring 3 to form a seal. The linings 4, 7 are of synthetic plastics film such as P.T.F.E. or polyimide. As shown, the lining 7 extends over the end of a neck 6 on the duct 5 and this is urged by a spring 8 against the lining 4 drawn over the ring 3.
Patent GB-1418230-A (GB)
Title: Flame retardant polyester compositions
IPC: C08K5/1515
Filed: 1973-12-21
Abstract: 1418230 Polyester compositions TORAY INDUSTRIES Inc 21 Dec 1973 [28 Dec 1972] 59632/73 Heading C3R A flame retardant composition comprises (A) a polyester derived from a dicarboxylic acid comprising at least 80 mol. per cent of terephthalic acid based on the total mols. of dicarboxylic acid and a diol comprising at least 80 mol. per cent of 1,4-butanediol based on the total mols. of diol; (B) from 4-30% wt. based on the polyester of a halogenated diphenylether of the formula wherein X 1 -X 10  represent hydrogen, chlorine or bromine atoms, at least 2 X's being chlorine or bromine atoms, as a flame retardant, and (C) from 0À01-3% wt. based on the polyester of a diepoxy compound which may be represented by the formula wherein R 1  and R 2  represent hydrogen atoms, alkyl, cycloalkyl, aryl or aralkyl groups, and R 1  and R 2  may be bonded to each other, and R represents an alkylene, cycloalkylene, arylene, alkarylene or aralkylene radical optionally interrupted by ether and/or ester groups and R may be optionally bonded to R 1  and/or R 2 . The composition may also comprise decabromodiphenyl and antimony trioxide as flame retardants. The polyester may be a homopolymer or copolymer. Blends of more than 70% wt. of the polyester and less than 30% wt. of other polymers may be used examples of which are listed. Suitable diepoxy compounds are polycondensates of epihalohydrin and a diol, bis- (2,3 - epoxypropanol)dicarboxylic acid esters, and cycloaliphatic diepoxides. In Examples 1- 4 compositions are prepared from polybutylene terephthalate, bisphenol A diglycidyl ether, antimony trioxide and either (i) a mixture of decabromodiphenyl (DBB) and hexabromodiphenyl ether (HBE) or (ii) decabromodiphenylether. In Example 5 compositions are prepared from polybutylene terephthalate, antimony trioxide and either (i) DBB, HBE and bis-(2,3- epoxypropyl) terephthalate, or (ii) DBB, HBE and cyclooctadiene 1,5-diepoxide, or (iii) DBB, HBE and an epoxy resin or (iv)-(vii) bisphenol A diglycidyl ether and either DBB and dibromodiphenylether, or DBB and tetra chlorodiphenyl ether, or decabromodiphenylether alone and together with DBB. The pelleted compositions are moulded into bars and tested for flame resistance and tensile strength.
Patent GB-1287804-A (GB)
Title: Cinematographic apparatus including mechanism for removing leading end of film roll from a spool
Inventor: ORT WOLFGANG
IPC: G03B1/56
Filed: 1969-12-11
Abstract: 1287804 Cinematographic apparatus EASTMAN KODAK CO 11 Dec 1969 [12 Dec 1968] 60527/69 Heading'G2E An automatic film threading mechanism for use in a cine projector comprises means for initially driving film spool 2 in a take-up direction A until the free film end passes sensing means which actuate a switch to start a belt drive to a friction roller 7 engaging the film roll surface, roller 7 rotating the spool in the opposite direction to supply film to a film guiding mechanism. The sensing means consists of a light beam passing from source 6 to a mirror 4a on a bar 4 bearing on the film roll, and then to a photo-cell 5. The initial take-up drive is applied through a slipping clutch to spindle 11. Bar 4 and roller 7 are carried on a member 3 movable towards a cassette 1 containing spool 2.
Patent GB-1274810-A (GB)
Title: Network connection circuitry
IPC: H04B15/00
Filed: 1970-12-23
Abstract: 1,274,810. Companders. C.I.T. COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 23 Dec., 1970 [23 Dec., 1969], No. 61046/70. Heading H4R. A circuit for interconnecting a wire telephone network with a radio-telephone network includes an output circuit which accepts voice frequency signals and applies them simultaneously to the inputs of a partial amplitude compressor, a narrow band transmission amplitude detector and a syllable detector. As shown the signal on line L is connected through a termination element 10 to an output circuit at terminal 11 and an input circuit at terminal 30. The partial amplitude compressor 12 has an output signal frequency range of 300-2700 Hz and an amplitude having a residual dynamic range of 10 db. Amplitude detector 13 which has a narrow passband of 0-2 Hz and syllable detector 14 comprising a 300-2700 Hz bandpass filter in series with an envelope detector and 2-40 Hz bandpass filter have their outputs combined in circuit 15. This output is modulated at 16 and passed through a 2700-3000 Hz band-pass filter 32. The outputs of filters 31 and 32 are combined in circuit 18 and the combined signal transmitted at 19. On the receiver side the received signal passes to band pass filters 23 and 24 and in the latter case through a syllable test demodulator 26 which controls the AND gate 25 so that signal reaches expander 28. The received signal also passes, after filtering in filter 24, to amplitude demodulator 27 which is applied to a gain control input of amplifier 29. Demodulator 26 has a pass band of 2-40 Hz and demodulator 27 has a band width of 0-2 Hz. The circuit is stated to reduce the effect of interference signals.
Patent GB-1190182-A (GB)
Title: Improvements in or relating to Water Aerators
Inventor: AGHNIDES ELIE PRODROMOS
IPC: E03C1/084
Filed: 1968-12-23
Abstract: 1,190,182. Aerator. E. P. AGHNIDES. 23 Dec., 1968 [29 Dec., 1967], No. 61156/68. Heading B1C. An aerator for connection to. a water pipe or tube comprises a part 11 for connection to the pipe or tube, a transverse perforated wall 13, a sleeve 21 holding wire mesh 14, 20, and strips 23 depending from part 11 and joined to sleeve 21 so as to form inlets 24 for the induction of air into the space between wall 13 and wire mesh 14, 20 and is characterised by having is internal parts made mainly of synthetic plastics material, the parts being surrounded by a sleeve 16 made of metal matching that of the water pipe or tube. In modifications, part 11 may be extended downwardly and provided either with a metallic sleeve or layer, Fig. 2 (not shown), and a casing provided with a vapour-deposited metallic outer surface may be used for connecting the inner parts of the aerator to the end of a water pipe or tube, Fig. 3 (not shown).
Patent GB-617225-A (GB)
Abstract: 617,225. Turning. BECHLER, A. Aug. 22, 1946, No. 25113. Convention date, May 3. [Class 83 (iii)] In an automatic lathe, two tools 7, 8, are mounted on a rocking-holder 12 so as to be presented to the work from opposite sides thereof, the rocking-holder 12 being pivoted to the frame of the machine and guided along a plane perpendicular to its pivotal axis by a guideway on the centre-rest support 2 for preventing axial displacement of the holder. The guideway is constituted by the vertical face of the support 2 and a plate 20 which is secured by a bolt 18 sliding in a slot 17 in the holder. The feed of the tools for shaping, cutting-off or turning different diameters is controlled by a cam 22.
Patent GB-772548-A (GB)
Abstract: 772,548. Endless conveyers. LAPOINTE MACHINE TOOL CO., Ltd. (Lapointe Machine Tool Co.). Dec. 7, 1954, No. 35457/54. Class 78(1). Work holders H secured at their front ends to a pair of endless chains 10 by a shaft 20 having its end portions 25 extending through the links of the chains, are provided at their real ends with bushings 40 which are slotted at 50 to receive the projecting portions 55 of studs 52 on the chains so as to allow the distance between the front and rear pivotal connections to shorten as the holders pass round the terminal sprockets 11, 12.