baber/WOPTO huggingface dataset:
Patent GB-406845-A (GB)
Abstract: 406,845. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Briggs, J. A. ; 52, Wesley Avenue, Erlton, New Jersey, U.S.A.) Dec. 16, 1932, No. 35765. Convention date, Jan 16, 1932. [Class 40 (iii).] A system for the television transmission of a continuously moving kinema film in which synchronizing impulses are produced at the end of each line and picture frame, includes an arrangement by which the film may be manually moved through the scanning gate without altering the speed of the members producing the movement of the film so that the frame synchronizing impulses are produced simultaneously with the scanning of the line or space between successive frames of the film. The film 1 is scanned by circularly arranged apertures 21 of a disc 23 and synchronizing impulses are produced at the end of each line and of each picture frame by an outer ring of apertures 53 co-operating with a light source 57 and a photoelectric cell 55. A monitoring receiver is employed to determine if the picture-framing impulse is generated when the film is positioned in the scanning gate so that the line or space between successive picture frames is being scanned by the aperture 21. The motion of the film for phase adjustment and relative to that produced by the film-feeding sprockets is effected by a roller 35 engaging a loop in the film and carried on a pivoted rod 41 manually adjustable by the rotation of a screw-threaded member 45. The roller 35 rotates a fly-wheel 39 which tends to maintain uniform the speed of the film through the gate in spite of small variations in the speed of the driving sprockets. Additionally a speed controlling roller 77 and fly-wheel 82 are included between the gate 69, at which the sound portion of the film is analyzed, and the sprockets 91, 93 leading the film to the winding reels. The synchronizing impulses are reversed in phase so that when a cathode-ray receiving apparatus is employed, the return movement of the beam at the end of each line and of a picture frame is not visible on the fluorescent screen, as described in Specification 395,499.
Patent GB-1089772-A (GB)
Title: Locking means for reel case
IPC: G03B21/32
Filed: 1964-10-08
Abstract: 1,089,772. Boxes for films and tapes. AMERLINE CORPORATION. Oct. 8, 1964 [Dec. 11, 1963], No. 41126/64. Heading B8P. A moulded plastics case for tape or film has top and bottom members with rims that sealingly engage and hub portions for locking the two members together by rotating a threaded stud with respect to a nut retained in the bottom member, there being a resilient ring surrounding the nut and compressed between the hubs when the case is locked. Circular top and bottom members 12, 10 have rms 16, 14 which seal together with a gasket 18. The top member 12 is formed with a well 22 with an irregular opening 28 surrounded by a flange 30 against which a resilient ring 32 is compressed, while a disc 38 nests in the well 22 being separated from the floor 24 of the well by a pair of plastics bearing washers 42, 44 secured by pins 43. A plastics stud 34 has its head 36 fixed to the dish 38 and its threaded shank extends through the opening 28 so that it can engage a nut 46 shaped to correspond to the irregular opening 28 and having a flange 48 carrying the resilient ring 50 and located within an aperture 19 formed in a well 15 of the bottom member 14 closed by a cover 70. To close the case the top and bottom members are brought together and the disc rotated so that the stud 34 engages the nut 46 which is drawn axially into the irregular opening 28 so that the resilient ring 32 is compressed around the aperture 19 and nut 46 against the flange 30 on the top member. Rotation of the disc is limited to about 145 degrees by means of studs 60 on the top member projecting through arcuate slots on the disc. A pair of rubber ring cushions 68 surrounding the wells support the reel of tape or film.
Patent GB-862348-A (GB)
Title: Fluid-operated reciprocating devices
Inventor: LEE NORMAN
IPC: F01L25/06
Filed: 1958-12-19
Abstract: 862,348. Fluid-pressure engines. KEELAVITE CO. Ltd. Dec. 18, 1959 [Dec. 19, 1958], No. 41187/58. Class 69 (2). [Also in Group XXVI] A fluid-operated reciprocating device comprises a piston 3, Fig. 1, which is reciprocable relative to a cylinder 1 and has parts 19, 20 co-operable with parts 5, 13 of a control valve at the ends of the cylinder to restrict or prevent flow from the end of the cylinder to which the piston is moving, the resulting increase in pressure between the adjacent faces of the piston and associated valve part moving the latter to control one or more inlet and/or outlet ports to reverse the direction of movement of the piston. Fluid from an inlet 18 is permanently supplied to the right-hand end of the cylinder to urge the piston 3 to the left and, because of differential areas on the valve part 13, urge that part to its left-hand position, as shown, whereby a chamber 10 is connected to a relief 18a ; the space to the left of the piston is also connected to the relief by ports 6a in the valve part 5. Towards the end of the stroke to the left, the part 19 of the piston enters a bore 6 in the valve part 5 and restricts the flow of fluid from the cylinder to increase the pressure in the cylinder and move the part 5 to the left so that the inlet 18 is connected by the passages 6a to the left-hand face of the piston, the pressure acting on the larger area of that face moving the piston to the right. Towards the end of the stroke to the right, the part 20 of the piston enters the bore of the valve part 13 to restrict the flow from the right-hand end of the cylinder and the increase in pressure moves the part 13 to the right to connect the chamber 10 to the supply 18. The valve part 5 then moves to its initial position to re-connect the left-hand end of the cylinder to the relief 18a ; the piston thus moves to the left as also does the valve part 13. The parts of the valve may be moved by mechanical engagement by the piston during the initial starting movements. In another embodiment, the two parts 22b, 22c, Fig. 2, of the valve are connected by a sleeve 22 which is disposed within the cylinder and within which the piston reciprocates. Fluid from a supply 30 is permanently connected to the right-hand face of the piston and the left-hand face of the piston is connected to the supply 30 and relief 29 alternately by the movements of the sleeve at the ends of the strokes of the pistons. Ports in the part 23a of the piston and in the right-hand end of the sleeve damp the movements of the piston during reversal. In a further embodiment, the positions of the sleeve are determined by a mechanical stop. The cylinder may be the moving member and the piston stationary.
Patent GB-1305780-A (GB)
IPC: H03L7/02
Filed: 1970-08-27
Abstract: 1305780 Frequency demodulators; limiting Circuits SIEMENS AG 27 Aug 1970 [28 Aug 1969] 41288/70 Headings H3A and H3T A circuit for producing a limited D.C. control voltage output in response to the deviation of an input I.F. signal from a centre frequency when the deviation in either direction exceeds a given amount comprises input transistors 1, 2 and output transistors 5, 6 connected in an opposed parallel arrangement between the emitters of 1, 2. The emitter circuits also include series combinations of diodes 12-14, 16-18 so connected that when the input signals to the bases of 1, 2 applied from a demodulator are equal, the D.C. output obtained between the collectors of 5, 6 is substantially the sum of the forward voltage drops across the diodes 12, 13. When a difference in the base potentials of 1, 2 exists, a D.C. output of either polarity appears depending on the relative magnitude of the input signals. As the detuning at the demodulator exceeds a given amount, the relative magnitudes of the base potentials of 1, 2 are such that the collector emitter threshold voltage of one of the transistors 5, 6 and the forward voltage of the associated diode 16 or 14 are overcome so that one of the transistors 5, 6 starts conducting to reduce the output D.C. voltage. In the embodiment of Fig. 1 (not shown), the diodes 12-18 and resistors 11, 15 are not included.
Patent GB-923273-A (GB)
Title: Vehicle coupling system
IPC: B62D53/08
Filed: 1959-12-07
Abstract: 923,273. Tractor/trailer couplings. SOCIETE LORRAINE DES ANCIENS ETABLISSEMENTS DE DIETRICH & CIE DE LUNEVILLE. Dec. 7, 1959 [Dec. 9, 1958], No. 41472/59. Class 103(5). A tractor/trailer combination has coupling members comprising a cradle 3 mounted at the rear of the tractor and a bearer member 4 on the trailer, which members are connected by pairs of forward and rearward links which may be moved relatively to one another to vary the point of intersection M and the proportion of trailer load transferred to the tractor. A pair of forward inner links 5, are pivoted on a shaft 7 to the member 4, and through a shaft 9, to stub shafts 8 on the cradle flanges. Rear inner and outer pairs of links 5 2  and 6 2  are similarly connected to a shaft 9 2  and to stub shafts, and the forward and rearward pairs of links are constrained to lie in common respective planes. The shafts 9 1  and 9 2  are connected by nuts 9a and 9b threaded on a shaft 10 having opposite handed threads 10a and 10b so that rotation of the shaft 10 may move the shafts towards or away from one another to adjust the angle formed between forward and rear links and the position of the point M. The angular position of the links and the member 4 with the flanges 3, and the precise position of the point M relative to the tractor may be adjusted by rotating a shaft 11 pivotally mounted on an arm 14 freely rotatable about a shaft 13 fixed between the flanges 3, the shaft 11 having a nut 12 thereon which is freely rotatable about the shaft 9 2 . U.S.A. Specification 2,809,851 is referred to.
Patent GB-993185-A (GB)
Title: Driving gear for motor vehicles
IPC: B60W10/10
Filed: 1962-11-02
Abstract: 993,185. Engine turning gear. H. PAPST. Nov. 2, 1962 [Nov. 2, 1961], No. 41516/62. Heading F1K. [Also in Divisions B7 and H2] A motor vehicle includes a gearbox having an input shaft 17 which is driven by an internal combustion engine 2 through a clutch 6 and by an electric dynamotor 22 through reduction gearing 21 incorporating a free-wheel. The input shaft 17 drives change speed gearing 8 having an output shaft 20 connected to the driven wheels 12, 13, of the vehicle through a differential 9. A switch 25 is closed when the accelerator pedal 24 is depressed and, providing an isolating switch 27 is closed, the dynamotor is energized from a battery 23 to start the engine 2. When the engine 2 has reached a predetermined speed the free wheel permits the dynamotor to idle until a further increase in engine speed causes the ratio of the reduction gearing 21 to be changed automatically to increase the speed of the dynamotor which then charges the battery 23 through a voltage regulator (not shown). The dynamotor 22 may be used to propel the vehicle, in which case the clutch 6 is held out of engagement by a locking bar 41 which engages the clutch pedal 7. An hydraulic pump 40 coupled to the input shaft 17 can be driven by either the engine 2 or the dynamotor 22 to lock the door latches when the vehicle is moving or operate a windscreen wiper or hydraulic jack.
Patent GB-1236113-A (GB)
Title: Motor vehicle suspension assembly
IPC: B60G3/24
Filed: 1969-08-21
Abstract: 1,236,113. Vehicle suspensions. DAIMLERBENZ A.G. 21 Aug., 1969 [21 Aug., 1968], No. 41707/69. Heading B7D. A motor vehicle comprises a suspension assembly (Fig. 1) suspended from the vehicle superstructure by means of a carrier 11 which permits a pair of wheels 13 to swing in relation to the superstructure about two orthogonal axes A-A and B-B respectively transversely and longitudinally of the vehicle, the assembly being connected to the superstructure by one or a pair of resilient mountings (Figs. 3 and 4). The carrier comprises a ring-frame 12, which may be formed from two half-frames 12a, 12b or may be a single member (Figs. 5, 6, not shown), defining one or a pair of eyes 16, 17 locating rubber or plastics rings 18, 19 which enclose inner elements 20, 21 connected to the superstructure 10. One, preferably the rear, mounting may have similar connection to the superstructure via a spring-retained rod 33 (Fig. 4). Where only one, preferably the forward, mounting is resilient, the other or rear one comprises a rigid ball joint, and where the arrangement comprising the rod 33 is used in this instance, ball joints may be used at both ends of the rod. The carrier further comprises a transverse member 14 having either an internal rigid member 30 or internal torsionally resilient member 30 mounting swinging arms 31 having coil-spring connections 32 to the superstructure. Alternatively, the swinging arms can provide independent suspension for the wheels 13. The member 14 is supported above the plane of the frame 12, either by bent-up ends of the halfframes and bracing plates 15, or solely by bracing plates (115). An axle gear unit 25 has resilient connection 26, 27 to the frame and member 14.
Patent GB-944481-A (GB)
Title: Improvements in or relating to tedders
IPC: A01D78/00
Filed: 1961-11-22
Abstract: 944,481. Hay-making machines. PATENT CONCERN N.V. Nov. 22, 1961 [Dec. 2, 1960], No.41831/61. Class A1F. A tedder comprising a number of tine-carrying supports 13 mounted in a frame 1 so as to be rotatable about a horizontal axis is characterized in that two groups of guide members are provided which extend upwardly and rearwardly relative to the direction of travel of the tedder, the groups defining deflector surfaces arranged to guide or collect the crop displaced by the tines into two streams. A baffle 42 is disposed in front and the guides are formed in pairs 60, 61 and clamped by means of lugs. As shown in Fig. 13 the guides 111-120 are formed in pairs from spring steel. A towbar 29 is provided and is movable to a transport position shown in dotted lines. A movable drive shaft 36 is also provided and may be connected to a tractor power shaft. Specifications 944,482, 944,483, 944,484, 944,485, 944,486 and 944,487 are referred to.
Patent GB-886007-A (GB)
Title: Improvements in austenitic steel alloys
IPC: C22C38/58
Filed: 1959-12-11
Abstract: An austinitic steel alloy for use in gas turbine parts or as weld deposits has the following composition by weight:- .Cr.12 to 25%, .Mn.10 to 20%, .Ni.4 to 18%, .Mo.2 to 6%, .W.1 to 4%, .N.0,1 to 0,6%, .and C.0 to 0,6%, .with Fe.as balance, the constituent elements satisfying the following equation:-  <FORM:0886007/II/1> where y=1,6 (% Cr-12,5)+3,5 (%Mo) +1,7 (%W) and x=20 (%C+%N)+%Ni+ (%Mn-12).
Patent GB-1269964-A (GB)
Title: Process for preparing polymer dispersions
IPC: C08F2/20
Filed: 1969-08-26
Abstract: 1,269,964. Polymer dispersions. BALM PAINTS Ltd. 26 Aug., 1969 [16 Sept., 1968], No. 42384/69. Headings C3G and C3P. A dispersion of a polymer in an inert organic liquid in which the polymer is insoluble is prepared by polymerizing ethylenically unsaturated monomer in the liquid, in the presence of a polymeric dispersion stabilizer, in a two-stage reaction consisting of a seed stage and a feed stage wherein (1) in the seed stage there is added to the organic liquid the monomer and copolymerizable polymeric stabilizer (having at least one ethylenic double bond per molecule) in a weight ratio of from 1 : 10 to 15 : 1, the amount of monomer added being from 7-70% by weight of the total monomer used, (2) in the feed there is added the remaining monomer and optionally additional polymeric stabilizer (which preferably has no ethylenic double bonds), and (3) the total weight of polymeric stabilizer added is from 0À6-50% by weight of the disperse polymer formed. (The polymeric stabilizers used are those which associate with the disperse polymer and comprise one or more components which are solvated by the organic liquid and provide around the disperse polymer particles a stabilizing steric barrier). The examples use as copolymerizable stabilizers the products obtained by condensing poly( 12-hydroxystearic acid) with glycidyl methacrylate, then copolymerizing with methyl methacrylate and glycidyl methacrylate, and finally reacting with methacrylic acid to introduce polymerizable double bonds; and as additional (non-copolymerizable) stabilizers similar products as for the copolymerizable stabilizers except that the final methacrylic acid reactant is replaced by p-nitrobenzoic acid. In the examples dispersions of the following polymers in liquid hydrocarbons are prepared in the presence of azobisisobutyronitrile, octyl mercaptan and also, in some cases, butyl benzyl phthalate: (a) polymethyl methacrylate, (b) methyl methacrylate-methacrylic acid copolymer (whose acid groups are subsequently reacted with epoxide groups in the additional stabilizer), (c) methyl methacrylate-ethyl acrylate copolymer, (d) methylmethacrylate-n-butyl methacrylate copolymer, and (e) methyl methacrylate-2-ethyl hexyl acrylate copolymer.
Patent GB-1485970-A (GB)
Title: Integrated injection logic circuit structure
IPC: H01L27/02
Filed: 1974-10-01
Abstract: 1485970 Integrated circuits TEXAS INSTRUMENTS Ltd 1 Oct 1974 42545/74 Heading H1K In an I<SP>2</SP>L structure (Fig. 3) comprising a uniformly doped substrate 101 of one conductivity type which, with epitaxial layer 102 of the opposite conductivity type and regions 103- 105 of the one type, constitutes an inverted vertical multi-collector injector transistor, each collector of which forms the base of a multicollector, e.g. 106-108 logic transistor the emitter of which is formed by the epitaxial layer, a surrounding isolation region 110 is provided which is of the same conductivity type as and extends down to the substrate. External connection to the substrate is made via region 110 or by metallic contact layer 109. A stripform ohmic contact (not shown) to layer 102 extends normal to the length of regions 103-105 on an N+ region and an N+ region may be provided around each of regions 103-105 to inhibit parasitic transistor action between them.
Patent GB-978992-A (GB)
Title: Insulation
IPC: C23C14/02
Filed: 1961-11-28
Abstract: A process for forming thin films of an insulating material on a substrate comprises vapour depositing a first layer of insulating material under vacuum, raising the pressure contacting the deposited layer and then vapour depositing a second layer of insulating material under vacuum.  The second layer may be the same as the first.  The pressure is preferably raised by admitting dry nitrogen or dry helium into the vacuum chamber.  The deposition of layers of SiO, SiO2, CaF2, Al2O3, BeO and MgF2 on metallic bases such as Ta or Cu is referred to.
Patent GB-1345749-A (GB)
Title: Compositions containing coumarone-indene resins and propylated  polycyclic aromatic hydrocarbons
IPC: C08L45/00
Filed: 1971-09-14
Abstract: 1345749 Coumarone-indene resin; epoxy resin compositions KUREHA KAGAKU KOGYO KK 14 Sept 1971 [14 Sept 1970] 42813/71 Headings C3B and C3P Compositions suitable for use with epoxy resins comprise (1) 50 to 10 parts by weight of a coumarone/indene resin of molecular weight 200 to 1000 and (2) 50 to 90 parts by weight of a propylated polycyclic aromatic hydrocarbon having a boiling point of 300 to 450‹ C., a Gardner colour index of less than 10, a viscosity of less than 10,000 cps. at 25‹ C., an aromatic proton concentration of 15 to 80% as measured by NMR absorption, and an average of 1 to 4 substituent propyl groups per molecule, or a partially hydrogenated product thereof. In examples products obtained by hydrogenating and propylating residues obtained as byproducts in the manufacture of ethylene and acetylene from crude oil are blended with coumarone/indene resins, and added to conventional epoxy resin/curing agent mixtures for the production of floor materials, joint fillers and sealants.
Patent GB-1070465-A (GB)
Title: Weldable tough steel containing chromium and manganese and method of manufacturing the same
IPC: C22C38/38
Filed: 1963-10-30
Abstract: A weldable tough steel has a composition within the range C less than 0.2% Si less than 1.5% Cr 3 - 14.1% Ni less than 3.5% Mn 2 - 10.0% Cu 0.2 - 5.0% Fe and impurities the balance.  An alloy within this range which contains 0.08-1.0% Si, at least 0.1% Ni and at least 3.5% Mn, may also contain Mo 0.3-3.0% and Al 0.003-1.0% and optionally one or more of V, Nb, Ta, Ti in total amount up to 10 times the C content, N 0 to 0.2% and Be 0-0.25%. This alloy may be hot rolled, solution treated at a temperature from Ac3 to 1100 DEG C. for 1-3 hours, cooled and tempered below AC, to effect precipitation hardening. Transformation of austenite to martensite may be effected between the solution treatment and tempering by holding below 0 DEG C. for 2-3 hours or by heating above Ac3.  A further alloy containing also one or both of Mo and W 0.4-3.0%, one or more of Al, V, Nb, Ta, Ti up to 1.5% in total and N less than 0.2% is subjected only to solution treatment and tempering when the sum of Ni content and 1/2 Mn content is 3-5%.  When Ni + 1/2 Mn exceeds 5% martensitic transformation or cold rolling or sub-zero treatment is interposed between the solution and tempering.
Patent GB-1248147-A (GB)
Title: Phase locked loop with voltage controlled oscillator
IPC: H03K3/282
Filed: 1969-08-28
Abstract: 1,248,147. Phase locked loops.. SIGNETICS CORP. 28 Aug., 1969 [6-.Sept., 1968], No. 42881/69. Heading H3A. In a phase locked loop control system, the voltage controlled oscillator is a multivibrator comprising transistors Q5, Q6 which have the voltage swing at their collectors maintained at the forward junction voltage of diodes connected in the collector circuits, and the oscillation frequency is varied by controlled current sources Q10, Ql 1 connected in the emitter circuits of the transistors Q5, Q6 to give a linear voltage/ frequency characteristic. As described, the collector circuit diodes are the base-emitter junctions of transistors Ql ... Q4 which constitute the phase comparator of the loop. Incoming signals at V 1  are compared with the oscillator signal to produce an error signal V 2  which is fed via filter R1, R2, C 2 , C 3  to the bases of transistors Q9, Q10, Q11 which, together with-.constant current source I B , constitute the controlled current source feeding the multivibrator. The constant current source may be constituted by a transistor circuit as in the more detailed circuit diagram, Fig. 4 (not shown). The circuit is used as a demodulator for F.M. signals, the demodulated output V 3  being taken from the bases of Q9, Q10.
Patent GB-874779-A (GB)
Title: New steroid compounds and processes for their preparation
IPC: C07J5/00
Filed: 1959-12-17
Abstract: The invention comprises compounds of the general formula <FORM:0874779/IV (b)/1> (wherein X represents hydrogen or bromine and Ac an acyl radical, e.g. acetyl, benzoyl, hexahydrobenzoyl, m-sulphobenzoyl or b -cyclopentylpropionyl), and the preparation thereof by protecting the 20-ketone group of 3a ,17a -dihydroxy-16a -methylpregnane-11, 20-dione (e.g. by conversion to the 20-semicarbazone), reducing the 11-ketone group and liberating the 20-ketone group to form 3a ,11a , 17a -trihydroxy-16a -methylpregnan -20- one, dehydrating this to yield 3a ,17a -dihydroxy-16a -methylpregn-9(11 -en-20-one, introducing a halogen substitutent at the 21-position and reacting the product with the appropriate acylating agent to yield a 3a ,17a -dihydroxy-16a -methyl-21-acyloxypregn-9(11)-en -20- one, oxidising this to the 3,20-dione and monoor di-brominating this product.  The dehydration step may be preceded by acylation of the 3a -hydroxy group and followed by saponification.  9a -Fluoro-11b ,17a ,21-trihydroxy-16a -methylpregna-1,4-diene-3, 20-dione can be prepared from the compounds of the general formula above by subjecting them to dehydrobromination and dehydrogenation when X=H, or to di-dehydrobromination when X=Br, followed in either case by introduction of an 11b -hydroxy group and a 9a -fluorine atom.