baber/WOPTO huggingface dataset:
Patent GB-1407406-A (GB)
Title: Keyboards
IPC: H01H13/00
Filed: 1971-10-09
Abstract: 1407406 Keyboard encoders SOLARTRON ELECTRONIC GROUP Ltd 6 Oct 1972 [9 Oct 1971] 47122/71 Heading G1A [Also in Division G4] A keyboard comprises an assembly of keys 20, a first set of paths 14 along which radiant energy can be passed, a second set of paths 16, angularly disposed with respect to the first set, along which radiant energy can be passed and output devices (not shown) for providing an indication of which key has been actuated. Each set of paths is provided with light sources 32 or 36 and photosensitive detectors 34 or 38. Depression of a key 20 causes a shutter 26 attached to the stem of the key to block one path in each set. The outputs of the detectors are connected to AND gates which provide a coded representation of the actuated key. A circuit, Fig. 9 (not shown), which includes field effect transistors arranged in bridge networks is also connected to the detectors to supply an inhibit signal to the AND gates and a fault indication if the bridges become out of balance due to the simultaneous actuation of two keys. A keyboard is also described, Figs. 5, 6 (not shown), in which the shutters are replaced by mirrors and a shift register sequentially energizes the light sources, to reduce the required number of photo-sensitive detectors. Other embodiments of the keyboard are described in which the sets of light paths lie in superimposed planes, in which each key is provided with two inclined reflective surfaces, and in which the light paths are formed in segments movable by actuation of a key. Infrared or acoustic radiation may be used.
Patent GB-1418586-A (GB)
Title: Article forming moulds
IPC: C03B9/38
Filed: 1973-10-10
Abstract: 1418586 Glass blowing moulds EMHART CORP 10 Oct 1973 [6 Nov 1972] 47303/73 Heading C1M A glass forming mould comprises a mould cavity and includes an internal chamber, fluid inlet and fluid outlet openings to and from the chamber and a porous metal filler material in the chamber comprising generally spherical particles joined to one another and to at least part of the surface of the internal chamber. As shown for a split parison mould, 10, 12, each is formed of inner and outer cast iron walls 11, 13 forming between them an internal chamber filled with particles of a size between <SP>3</SP>/ 64 th and <SP>3</SP>/ 16 ths of an inch, either of "Monel" (Registered Trade Mark) or stainless steel, which are brazed together and to the wall 11, the inner surface S 1  of which forms the mould cavity. The moulds 10, 12 are mounted in mould holder arms 14, 16 pivotally mounted on a single hinge pin as in the Hartford I.S. machines. Cooling air is provided through a tube 18 having a ball-and-socket connection 20 with the mould holder arm 14 (16), the air passing through an inlet passageway 21 to the internal chamber and then through an outlet passageway 23 in the arm 14 (16). So that the air reaches the inner wall 11 of the chamber, internal passageways 22 communicate with the passageways 21, each having a top plug 32 tapered to turn the air inwardly. Upwardly open passageways 24 are provided adjacent wall 11 and have half shields 26 to assist the flow of air to the wall 11. The air passes out to passageway 23 under a top cover 28. The construction shown also includes a split neck ring mould 40, each half 42, 44 of which has an internal chamber filled with brazed metal particles 46 and has a cooling air inlet through the neck mould holder arm 48 and an outlet 50. A blowing mould, similar to the parison mould, is disclosed and this includes a bottom plate similarly with internal chamber and air inlet and outlet. A one-piece mould shown has no specific passageways through the porous metal filler and has direct air inlet and outlet openings at top and bottom.
Patent GB-1409684-A (GB)
Title: Roof guttering
IPC: E04D13/08
Filed: 1973-10-15
Abstract: 1409684 Gutter system PATENT DEVELOPMENT PTY LTD 15 Oct 1973 [31 Oct 1972] 47991/73 Heading E1B A roof gutter system comprises extruded plastics troughs 12, 13 and extruded plastics couplings 14, 15, the troughs and the coupling having complementary dovetail ribs and grooves to enable longitudinal engagement and a further dovetail ridge or groove along the top of the front wall. The couplings 15 may have down pipe spigots 16 and corner sections 14 may be formed from two extrusions connected with a mitre joint. The troughs are supported by metal or plastics brackets 31 which engage longitudinal recesses in the top of the front wall and the bottom of the back wall. A groove 27 is provided to receive the soffit plate, and dovetail ridges 35 and grooves 39 at the top and bottom of the front wall enable the addition of extruded plastics facia plates, Fig 5 (not shown). A mastic sheet disposed in the coupling element abuts the ends of two troughs and seals the joints.
Patent GB-1307093-A (GB)
Title: Process and device for changing tools on a punching or nibbling machine
IPC: B21D37/14
Filed: 1970-10-08
Abstract: 1307093 Nibbling TRUMPF VERWALTUNGS-UND BETEILIGUNGS GmbH A TRUMPF C TRUMPF H SCHWARZ B LEIBINGER [trading as TRUMPF & CO] 8 Oct 1970 [3 Nov 1969] 48015/70 Heading B3W Tools consisting of two or more parts are inserted in a punching or nibbling machine by means of a holder, the parts being then locked in the machine and the holder withdrawn. The holder may have three forked arms 2, 3, 4 of which arms 3, 4 are adjustable on a screwthreaded post (37), Fig. 5 (not shown). A punch 5, stripper 6 and a die 7 have segmental slots 12, Fig. 8, to receive the forked arms and recesses 15 for locking-pins or ball-fasteners (14, 15), Fig. 6 (not shown). One or both locking pins may be extended by a spring-loaded lever operated by hand or a control device. With the tools in position in the machine, Fig. 3, wedges 31, 32, 33 of members 26, 27, 28 lock the tools, and the holder is withdrawn. In a developement, locking devices of the holder may be released and those of the machine applied automatically if the holder, upon insertion, operates a switch, valve, or a system of rods or a lever. A number of holders may be associated with a magazine and controlled by punch cards or magnetic tape.
Patent GB-1531858-A (GB)
Title: Band sealer for sealing bag tops
IPC: B65B51/00
Filed: 1976-11-18
Abstract: 1531858 Seaming non-metallic sheet material DOMAIN INDUSTRIES Inc 18 Nov 1976 [3 Dec 1975] 48123/76 Heading B5K A band sealer for scaling filled thermoplastic bags, e.g. of polyethylene, comprises superposed endless heat transfer bands 11, 12 and conveyer chains 15, 16 with adjacent bagengaging and return runs immediately above frame plates 22, the chains 15, 16 being mounted on and driven by motor-driven sprockets 17, 18, the bands 11, 12 being driven from wheels 13 overlying the chains 15, 16, each wheel 13 being journalled in a mounting and coupled to the adjacent chain 15 or 16 so that the bands 11, 12 are driven at the same linear speed as the chains 15, 16. As shown, the sprocket 17 is driven by a motor 24 and drives the sprocket 18 through meshing pinions 17À2, 18À2. Chain guides 28, 29 are mounted on the plates 22 to guide the bag-engaging runs 15À1, 16À1 of the chains 15, 16 along the sides of a slot 20 defined by the plates 22. The guide 29 is slightly movable or spring-pressed to accommodate different bag thicknesses. Heat transfer bars 11À3, 12À3 extending along the bag-engaging runs 11À1, 12À1 of the bands 11, 12 supply, or withdraw heat from the bands and may be heated by electrical resistance heaters or cooled by chilled water. Each wheel 13 has a ring gear 30, fixed to the inside of a peripheral wall 13À6 thereof, and with which meshes a pinion 31 on a sprocket 32 meshing with the return run 15À2 or 16À2 of the chain 15 or 16. The runs 15À2, 16À2 are maintained in mesh with the sprockets 32 by guides 33 on the plates 22. Brackets 34, mounting the wheels 13, the pinions 31 and the sprockets 32, define stub shafts 34À1 extending into bearings 13À3 of the wheels 13 and have cantilever portions 34À4 in which are fixed shafts 35 extending through bearings 32À1 of the sprockets 32. Each bracket 34 is on the adjacent plate 22 by a fulcrum pin 36 and fixed thereto by screws (37), Fig. 3 (not shown), adjustable to alter the orientation of the respective wheel 13 so that the band tracks properly. Each wheel 14 is mounted on a slide 38, Fig. 5, movable by swinging a cam 38À1 upwardly against the end of the slide against the pressure of a spring 38À2 to move the wheel 14 slightly towards the wheel 13 to loosen the band for replacement thereof. The space immediately above the wheels 13 is open to facilitate this replacement.
Patent GB-987549-A (GB)
Title: Improvements in or relating to hatch structures
IPC: B63B19/197
Filed: 1963-12-11
Abstract: 987,549. Hatch covers for ships. GOTAVERKEN A.B. Dec. 11, 1963 [Dec. 20, 1962], No. 48966/63. Heading E2M. A zig-zag folding hatch cover for ships including a plurality of sections comprises two sections 1, 2 articulated by laterally-extending pivots 8, 9 to a carriage 10 carried by pivoted wheels 5, 6 running on a longitudinal rail 4, double-acting hydraulic piston-and-cylinder jacks 22, 23 being pivoted to the carriage 10 on journals 20, 21 and to the sections 1, 2 on pivots 24, 25, and energizable selectively to turn selected sections upright. A further section 3 is hinged at 13 to the section 2 and is carried by a wheel 7 running on the rail 4. A wheel 15 is articulated to the free end of the section 1 by a link 16 pivotable on a bolt 17 and lockable by a cotter 18. Normally the wheel 15 rolls in a vertical channel 19 but it can be disengaged therefrom by removal of the cotter 18, to allow rotation of the section 1 without motion of the sections 2, 3. Various arrangements of folding one or more of the sections to give uncovered portions of various sizes and positions are shown in Fig. 5 (not shown). In a modification, the jacks 22, 23 are mounted on the axles which pivot the wheels 5, 6 to the carriage. In another embodiment, Fig. 4 (not shown), the jacks 22, 23 are articulated to a pair of individual links mounted on the pivots 8, 9, and the wheels 5, 6 are carried on axles mounted on the individual links. A stop is provided on the carriage 10 so that as the jacks are initially energised, the links rotate and abut the stop, and the hatch sections are lifted bodily clear of the coaming on the wheels 5, 6.
Patent GB-1509108-A (GB)
Title: Covering for sports-ground surfaces
IPC: E01C13/06
Filed: 1976-11-25
Abstract: 1509108 Sports ground surfaces M CEINTREY 25 Nov 1976 [27 Nov 1975] 49146/76 Heading A6D [Also in Division C3] A resilient covering for sports surfaces e.g. athletic race tracks or gymnasiums or surfaces for tennis, volley - ball or basket - ball comprises a powder of resilient material having a particle size of 0.5 - 10mm and a binder said bonder being present in an amount of from 15-85% wt. with respect to the total weight of powder and binder, and having been obtained by mixing just before use (A) a prepolymer of a polyurethane having at least 2 terminal NCO groups, said terminal groups being blocked by a phenol with (B) a liquid polyamine. The preferred prepolymer (A) is linear and comprises chains of polyoxypropyilene or polyoxybutylene or copolymers thereof with polyoxyethylene having a M wt. of 1200 - 2500, terminated by a diisocyanate, preferably tolylene dusocyanate, blocked with a phenol e.g. phenol itself, a cresol or tert - butyl phenol. The powdered resilient material may be rubber powder, cork scrap or a polyurethane or a terpolymer elastomer, such as EPDM, in the form of a powder. The polyamine (B) may be an aliphatic diamine, e.g. trimethylhexamethylene diamine, a cycloaliphatic diamine, e.g. isophorone diamine, (4 - aminocyclohexyl) methyl - 4 - cyclohexylamine a heterocyclic amine e.g. aminoethylpiperazine, or an aromatic diaimine. The binder may contain as optional additives:- plasticizers e.g. anthracene oil, dioxtylphthalate or -adipate, and aromatic plasticizers from petroleum oil; organic solvents and colouring agents. A permeable covering is obtained when the binder is employed in an amount of 15-35% of the total weight of the powder and binder, and an impermeable covering is obtained when the binder is employed in an amount of 50- 85% on .the same basis. In the Examples permeable and impermeable resilient coverings are prepared from compositions comprising either EPDM rubber particles or rubber particles obtained by grinding old tyres, and a binder comprising a liquid prepolymer obtained by reacting tolylene diisocyanate with either poly (1, 4 - oxybutylene) glycol or polypropylene glycol, naphtha solvent, phenol, dibutyltindilaurate, red iron oxide, a siliceous filler, optionally dioctyl adipate, and either (4 - aminocyclohexyl) methyl - 4 - cyclo hexylamine or aminoethyl piperazine.
Patent GB-1263586-A (GB)
Title: Method of measuring the concentration and/or size of suspended particles
IPC: G01N15/02
Filed: 1969-10-07
Abstract: 1,263,586. Measuring particle size and concentration photo-electrically. DER BUNDESMINISTER FUER WISSENSCHAFTLICHE FORSCHUNG. Oct.7, 1969 [Oct.10, 1968], No.49231/69. Heading G1A. The size and concentration of particles in an aerosol are determined by illuminating the suspended particles at the point of focus of a laser beam and evaluating the forward lobe of the scattered light within an angle of 15 degrees. A laser 1 produces a beam 2 which is focused through lenses L 1 , L 2  and diaphragms B 1 , B n  to point V. A gas stream Q carries particles through point V and the forward scattered light is collected by lenses L 3 , L 4  and focused on to photo-multiplier SEV. The direct beam passes through apertures in lens L 3  and mirror S into light trap 3. The output of the photo-multiplier is taken to a logarithmic potentiometer and pulse height analyzer for determining the actual number of particles present of a given size. The output is also fed through a threshold switch to a counter to determine concentration. To avoid overloading the photo-multiplier the intensity of the laser beam can be reduced by means of Kerr or Pockel cell K energized in accordance with the value of anode current in the photo-multiplier.
Patent GB-1479627-A (GB)
Title: Colour video signal reproducing apparatus
IPC: G11B20/02
Filed: 1974-11-14
Abstract: 1479627 Colour television SONY CORP 14 Nov 1974 [16 Nov 1973] 49312/74 Heading H4F  Fields of a recorded colour television signal are reproduced alternately by magnetic heads 1A, 1B, the reproduction apparatus including a separate automatic colour control circuit for each of the heads 1A, 1B and a colour killer circuit 14 which is controlled so that the colour reproduction is disabled if the signals from either or both of the heads 1A, 1B have amplitudes below a predetermined level. The signals from the heads 1A, 1B are supplied by a switch 3, operated at the end of each field period and controlled by a shaping circuit 5 receiving a reproduced control signal from a magnetic head 4, to high-pass filter 6 and low-pass filter 11. High-pass filter 6 separates the recorded frequency-modulated luminance component which is passed via a demodulator 8 to a mixing circuit 9. Low-pass filter 11 separates the recorded, low-frequency, chrominance component which is passed to mixing circuit 9 via an amplifier 12, a frequency converter 13 and colour killer circuit 14. The output of frequency converter 13 is also supplied to burst gate 21, detector circuit 22 and a switch 24 which is operated in synchronism with switch 3, as is a further switch 25. Connected between switches 24 and 25 are two integrator circuits 23A, 23B and the output of switch 25 being connected to control the gain of amplifier 12. During the fields that head 1A is reproducing a signal, integrator circuit 23A receives the output of detector circuit 22 and controls amplifier 12, whereas during the fields that head 1B is reproducing a signal integrator circuit 23B receives the output of detector circuit 22 and controls amplifier 12. The integrator circuits 23A, 23B are connected to respective level discriminators 31A, 31B each of which provides a "1" output when its input is above a predetermined amplitude and a "0" output when its input is below the predetermined amplitude. Only when discriminators 31A, 31B both produce "1" outputs does an AND gate 32 provide a "1" output to colour killer circuit 14 to disable its killing operation. In a second embodiment (Fig. 5, not shown) switch 25 is omitted, the outputs of integrator circuits 23A, 23B being connected to control the gains of amplifiers 2A, 2B, respectively.
Patent GB-1398159-A (GB)
Title: Flexible coated material
IPC: G03C8/52
Filed: 1972-10-26
Abstract: 1398159 Flexible opaque photographic supports EASTMAN KODAK CO 26 Oct 1972 [26 Oct 1971] 49425/72 Heading G2C [Also in  Division B2] A photographic element comprises a flexible support having thereon a first opaque layer having a binder comprising casein, an opaqueing pigment and a compatible film-forming organic polymer, and a second layer contiguous thereto, the second layer being non-pigmented and having a binder comprising casein and a compatible film-forming organic polymer. The support may be a polyester, e.g. polyethylene terephthalate, paper, polyethylene coated paper, polycarbonates, polyacetals, polystyrene, cellulose organic esters, polyethylene. The support may be given a subbing treatment, with a flame, oxidizing agent, corona discharge or ultraviolet radiation or by coating with a mixture containing colloidal silica. The opaque pigment is preferably carbon black. Suitable film-forming polymers are polyvinyl acetate, polystyrene, copolymers of styrene, copolymers of vinyl chloride, copolymers of vinylidene chloride and copolymers of alkyl acrylates, polymers of monoethylenically unsaturated nitrogenous monomer, alkylene oxide polymers. The coating compositions may also include hardeners for casein, matting agents such as polymethylmethacrylate beads, silica, starch or glass particles. The coatings may be applied by dipping, brushing, extrusion coating. The elements may be used as image-receiving elements which comprise a support having the opaque coating on the back and being coated on the face side with an image-receiving layer for a silver image comprising a silver precipitating agent or with an image-receiving layer for a dye image comprising any suitable hydrophilic colloids containing a basic mordant for mordanting acid solubilized diffusible dyes. A hydrophobic resin layer may be provided between the support and the image-receiving layer. Suitable hydrophobic resins are polyethylene terephthalate, polyethylene, polypropylene, poly(3-methylbutene-1), poly(octene-1), poly(decene-1), polyamides, polyacetate, polycarbonates, cellulose triacetate, cellulose acetate butyrate and ethyl cellulose. Preferred silver precipitating agents are the noble metals such as silver, gold, platinum and palladium. The element may also be used as a support for a light-sensitive silver salt or colour diffusion transfer element. The second layer reduces pinholes and cracking of the opaque first layer.
Patent GB-1093172-A (GB)
Title: Improvements in or relating to the levelling of railway tracks
IPC: E01B27/17
Filed: 1964-12-08
Abstract: 1,093,172. Track levelling apparatus. AMEBA A.G. Dec. 8, 1964 [Dec. 9, 1963], No. 49940/64. Heading B7N. Railway track levelling apparatus comprises a mobile chassis 1 carrying track lifting and packing machines 3, 2, a light receiver 5 which responds to light received via tube 8 which is maintained parallel to the track by support members 6, 17, a sighting telescope 16 secured parallel to the tube 8, a first advance vehicle 11 carrying a light transmitter 9 for co-operation with receiver 5 and a second vehicle 14 positioned further in advance of the machine which carries a target 15 which can be sighted via telescope 16. The light transmitter and receiver constitute a first reference line used for checking and correcting the position of the track and the target and sighting telescope constitute a second, more exact reference line against which the inclination of the first line is checked, and corrected if necessary by adjusting the height of the light transmitter, before track correction.
Patent GB-1476949-A (GB)
Title: Imidazo-1,2-a-benzimidazole and pyrimido-1,2-a-benzimidazole derivatives their preparation and their pharmaceutical compositions
IPC: C07D487/04
Filed: 1974-11-20
Abstract: 1476949 N-Phenyl dihydroimidazobenzimidazoles and tetrahydropyrimidobenzimidazoles, their preparation and their pharmaceutical compositions JOHN WYETH & BRO Ltd 30 Oct 1975 [20 Nov 1974] 50178/74 Headings C2C and C2P The invention comprises compounds of general Formula (I) and their pharmaceutically acceptable acid addition salts, in which R<SP>1</SP> to R<SP>4</SP> are independently H, halogen, CF 3 , OH, NH 2 , C 1-6  alkyl, C 1-6  alkoxy or mono- or di(C 1-6  alkyl)amino and n is 2 or 3 which may be prepared by (a) cyclizing a compound of Formula IV or an acid addition salt thereof in which X is halogen and if necessary converting the produced base to an acid addition salt (b) reacting a compound of Formula VI with a dihaloalkane of formula where Y is halogen, or when n is 3 by (c) cyclizing a compound of general Formula VIII or an acid addition salt thereof, in which X is halogen Y, if desired, converting the free base to an acid addition salt or (d) reacting the hydrochloride of a compound of Formula X with 3-amino-2-propanol at elevated temperature. (1 - Phenylbenzimidazol - 2 - yl)phosphodichloridate and [1 - (4 - chlorophenyl)benzimidazol - 2 - yl]phosphodichloridate of Formula X (above), wherein respectively R<SP>1</SP> to R<SP>4</SP> are H and R<SP>1</SP>-R<SP>3</SP> are H and R<SP>4</SP> is 4-Cl, are prepared as their hydrochlorides by reacting 1-phenyl (or 1 - (4 - chlorophenyl))benzimidazolin - 2 - one with phosphorylchloride and are reacted with 3- aminopropan - 1 - ol to obtain 2 - (3 - hydroxypropylamino) - 1 - phenyl(4 - chlorophenyl)- benzimidazole which are in turn reacted with thionyl chloride to produce 2-(3-chloropropylamino) - 1 - phenyl(and 4 - chlorophenyl(benzimidazole. 2,3 - Dihydro - 2 - imino - 3 - phenyl - 1H- benzimidazole - 1 - ethanol and the corresponding 3 - (3 - chlorophenyl) compound are prepared by reaction of 2 - amino - 3 - phenyl [or 3 - (3 - chlorophenyl)] benzimidazole with 2- bromoethanol and are reacted with thienyl chloride to prepare 2,3-dihydro-2-imino-3-phenyl - 1H - benzimidazole - 1 - ethylchloride and its 3-(3-chlorophenyl) analogue. Pharmaceutical compositions having hypotensive and hypoglycaemic activity for parenteral or oral administration comprise a compound of Formula I or a pharmaceutically acceptable acid addition salt thereof together with a pharmaceutically acceptable carrier.