baber/WOPTO huggingface dataset:
Patent GB-787321-A (GB)
Title: Improved feeding mechanism
Inventor: BREEBACK RUDOLPH HENRY
IPC: B67C7/00
Filed: 1956-08-09
Abstract: 787,321. Endless-chain conveyers, rotary conveyers. CROWN CORK & SEAL CO., Inc. Aug. 9, 1956, No. 24424/56. Class 78 (1). Articles travelling in a row on a conveyer 10, Fig. 1, are formed into two rows on slower conveyers 12, 14 by a pair of pocketed rotary members 20, 22 on each of which is means 32 operable in sequence positively to eject an article from one member while it is carried by the other member towards one of the rows. The conveyers 12, 14 comprise flat plates carried by endless chains and the conveyer 10 may be a rotary table or an endless chain with supports. Each rotary member 20, 22 has the same number of pockets 28 and is rotated so that the pockets are in register at the point X. Another pair of rotary pocketed members 24, 26 receives the articles from the first pair and transfers them to the conveyers. A curved guide 30 deflects articles from the conveyer 10 into the pockets 28 of the member 22 and a guide 34 cooperates with the ejectors 32 to direct the articles to the members 24, 26. Alternate pockets 28 on each member 24, 26 are provided with an ejector 32 and the arrangement is such that at any time only one ejector is at the point X. Each ejector is at an angle to the radius of the member which passes through the centre of the pocket. Each ejector is a double-acting airoperated piston working in a cylinder to which air is supplied in timed sequence. The conveyers 12, 14 transfer the articles to labelling, mixing or casing machines. When one of these machines becomes jammed, articles will accumulate on the conveyer feeding it and cause a plate 236 to turn on its pivot 238. This movement actuates switch mechanism 240 which stops the divider mechanism and preferably stops also the machine feeding it. If a lag occurs between the actuation of the switch and the stoppage of the divider mechanism, safety gates 230 turn about their pivots 232 and the oncoming articles are deflected on to the table 16.
Patent GB-813133-A (GB)
Title: Improvements in and relating to pump impellers
IPC: F04D29/22
Filed: 1956-08-09
Abstract: 813,133. Centrifugal pumps. SMART, R. E. Feb. 19, 1957 [Aug. 9, 1956], No. 24436/56. Class 110 (1). A pump impeller comprises separate front and rear shrouds, and vanes formed wholly integrally with the front shroud or each formed of parts one integral with one shroud and another integral with the other shroud, the front shroud having a central boss, and all the vanes or parts of vanes integral with the front shroud running into the boss, the two shrouds being adapted to be held firmly together on the impeller shaft by screw-threaded means. In the impeller shown, the front shroud 1, the vanes 4 and the hub 3 are formed as a single casting, and the rear shroud 8 is formed separately. The two parts of the impeller are clamped together against a shoulder 14 on the impeller shaft by means of a cap or nut 16 fitting over a reduced portion of the shaft. The cap 16 may be held in place by a screw 17 threaded into the end of the shafts A key (not shown) engages keyways formed in the shaft, the hub 3 and the shroud 8. In a modification, a radially inner part only of each vane is formed integral with the front shroud 1 and hub 3, the remaining part of each vane being formed integral with the rear shroud 8. Specification 694,637 is referred to.
Patent GB-388758-A (GB)
Title: Improvements relating to electric switchboard indicators
IPC: H02B15/00
Filed: 1931-08-31
Abstract: 388,758. Indicators for switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and GOFF, W. R., Bryn Euryn, Kenton Lane, Harrow Weald, Middlesex. Aug. 31, 1931, No. 24449. [Class 38 (v).] An indicator for use with illuminated circuit diagrams such as are mounted on switchboards, and in which an illuminated vertical line becomes horizontal, or vice versa, on the operation of a switch, comprises 3 lamps only arranged in a row, together with suitable shielding means. As shown diagrammatically, a centre lamp is mounted in a metal case 7 having a horizontal rectangular opening in front, and serves to illuminate the 3 square openings 5 forming a horizontal line in the mask 4 mounted on the switchboard. The outer lamps 2, 3 each illuminate an outer square 5 of those forming the vertical line, and together illuminate the centre square through openings 20 in the case 7, vertical screens 8 preventing illumination of the outer horizontal squares 5. Suitably disposed screens 10 prevent illumination of the outer vertical squares by the centre lamp.
Patent GB-243861-A (GB)
Title: Improvements in exteriorly applied draught excluders for doors
IPC: E06B7/20
Filed: 1924-10-16
Abstract: 243,861. Slater, S. M. Oct. 16, 1924. Draught excluders.-A draught excluder for doors oi the kind comprising a sliding bar or strip mounted in a recessed moulding on the bottom of the door, and actuated by a sliding rod engaging the jamb when the door is closed, has a spring 12 connecting the sliding bar to the actuating rod 10 and a fixed rod 11 in the door moulding by means of screws and loops 14 - - 16. The loops 16 are elongated and situated near the middle of the bar to allow tilting &c. on an uneven floor. In a modification, two springs are used, each connected at one end to the operating rod and connected by staples &c. to the strip at the middle and connected at opposite ends to the door. The bar or strip is carried by two or more slotted plates on the moulding and screws engaging the slots, and the springs are secured in slots or recesses in the operating and fixed rods 10, 11.
Patent GB-745471-A (GB)
Title: Noise killer for frequency-modulated radio receivers
IPC: H03G3/34
Filed: 1953-09-04
Abstract: 745,471. Radio receiving, muting and limiting systems. STANDARD TELEPHONES & CABLES, Ltd. Sept. 4, 1953 (Nov. 15, 1952], No. 24536/53. Class 40 (5). In a receiver the demodulator 1 is connected to the output circuit 2 through a network, including a biased rectifier G1 normally non- conducting, but rendered conducting to short circuit the received demodulated signal, on excessive noise interference, by an auxiliary circuit comprising a filter 3 responsive to noise frequency components lying outside the signal frequency band, amplifier 4 and rectifier 5 which rectifies the noise components and applies an opposing bias to the rectifier G1 to short circuit it. Another biased rectifier G2 may be in series with the received signal channel normally blocking the signal in the absence of a received carrier, but rendered conducting on receipt of the carrier, e.g. by the bias received from the limiter 6 in the case of an F.M. receiver.
Patent GB-1385109-A (GB)
Title: Lacquer
IPC: C08L67/02
Filed: 1972-05-24
Abstract: 1385109 Polyester lacquer DYNAMIT NOBEL. AG 24 May 1972 [26 May 1971] 24545/72 Heading C3R  A lacquer comprises a solution of the following components in an organic solvent: (a) 70-95 parts by weight of a copolyester having a glass transition point of from 30‹ to 50‹ C. derived from terephthalic and isophthalic acids and a glycol, (b) 5 to 30 parts by weight of a triazine resin and/or a hexa (alkoxy methyl) melamine, and (c) from 0À5 to 2% by weight, based on (b), of a catalyst which is a mineral acid, a monoalkyl- or monoaryl-substituted polybasic mineral acid or a salt thereof. The examples describe lacquers containing (a) copolyesters derived from (i) terephthalic acid, isophthalic acid, ethylene glycol 2,2-dimethylpropanediol and adipic acid or 1,3,3-trimethyl. adipic acid or 1,6-hexanediol or sebacic acid and diethylene glycol, or (ii) terephthalic acid, isophthalic acid, ethylene glycol and 2,2,4- trimethylhexamethylene glycol, (b) a benzoquanamine resin or hexamethoxymethyl melamine and (c) morpholine salt of p-toluene sulphonic acid. The lacquer may also contain titanium dioxide, chalk, silica or magnesium oxide. The lacquer may be coated on steel plate.
Patent GB-1023000-A (GB)
Title: Process for the production of isocyanates
IPC: C07C263/10
Filed: 1964-06-12
Abstract: Organic isocyanates are produced by continuously introducing preheated liquid phosgene and a 5-25% by weight solution of a primary amine in an inert organic solvent into a reactor at super-atmospheric pressure and 110-195 DEG  C., at least 1.75 moles of phosgene being employed per NH2 group, continuously withdrawing from the reactor an inert organic solvent solution of the resulting isocyanate together with the HCl and the excess phosgene, and continuously recovering the isocyanate.  Examples prepare tolylene diisocyanates and methylene bis-(4-phenyl isocyanate).  Suitable amines and solvents are listed.
Patent GB-317482-A (GB)
Title: Improvements in or relating to air and gas pumps
IPC: F04B33/00
Filed: 1929-08-12
Abstract: 317,482. Spira, L. Aug. 17, 1928, [Convention date]. Portable hand pumps. -The barrel 1 is surrounded by a jacket 5 in which a spiral tube 6 forms an air vessel communicating through a valve 8 with the outlet of the pump and having an outlet 11 in the cover. A normally sealed duct 13 fitted with a valve allows the the vessel 6 to be filled with compressed air from an inside independent source. The tubular vessel 6 may be dispensed with. The handle 2 is removable for packing. A foot or .support 9 is provided.
Patent GB-463943-A (GB)
Title: Improvements in or relating to photographic cameras and to attachments therefor
IPC: G03B19/04
Filed: 1935-09-04
Abstract: 463,943. Photographic roll - film cameras. BILLING, N. P. Sept. 4, 1935, No. 24693. [Class 98 (i)] A photographic rollfilm camera or a rollfilm back has a presser member mounted to engage behind the portion of the film in exposure, a film winding device having a manually operable rotatable spindle and a film spool winding element, ar operative connectior between the spindle anc the presser member to retract the latter from the film and to permit its return at or near the commencement and end respectively of a movement of the spindle rendering an adjacent part of the film ready for exposure, and an operative connection between the spindle and the spool winding element to cause them to engage and disengage during that movement of the spindle effected intermediate the retraction and return movement of the presser member. The roll-film back is hinged at the bottom to the camera body, for example a body as described in Specification 423,035. Arms hinged to the top of the body co-operate with recesses at the top of the back to secure the latter in closed position. As shown in Fig. 6, recesses 19, 20 in the back accommodate the film spools, and a recess 21 accommodates a presser member 22 urged by springs 24 to press the film against a raised frame in the camera body. Co-operating ridges in the back and body prevent light entrance. The film-winding mechanism, Fig. 5, comprises a ratchet wheel 33 and a gear wheel 36 having projections 34, 37 engaging recesses in the spools. Ratchets 35, 38 engage the wheels 33, 36. Engaging gear 36 is gear 39 rotatable by the mutilated gear 40 on a spindle 41, the central part of which is formed as a cam 43, Fig. 6, passing through holes 45 in the sidewalls of the presser member 22. A projection 42 on gear 40 is adapted to engage a star wheel 143 engaged by a spring detent 145, and carrying a drum with externally visible numbers. Secured to the end of spindle 41 is an external crank adapted to be located in normal position by a spring click. On turning the handle, the presser member 22 is retracted, then the mutilated gear 40 engages gear 39 to rotate the take-up spool. At the end of the rotation of spindle 41 the projection 42 engages starwheel 143 to change the indication on the drum. In a modification the spindle 41 may be rotated by bevel gearing, a series of spring click devices being provided to locate the bevel gear at the appropriate positions. Specification 277,420, [Class 98 (i)], also is referred to.
Patent GB-1055494-A (GB)
Title: Improvements in rockets, particularly solid fuel rockets
Inventor: ERNST ADOLPHE OTTON GONTIER
IPC: F02K9/12
Filed: 1964-06-15
Abstract: 1,055,494. Rocket motors. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. June 15, 1964 [June 18, 1963], No. 24694/64. Heading F3A. A rocket motor having a casing 1, Fig. 3, separated from the main propellant 9 (Fig. 1, not shown), by a protective liner 2 is provided with an auxiliary propellant 12 arranged in an annular groove 11 in the thickened end 3 of the liner adjacent the discharge nozzle. The auxiliary charge is such that it produces gases, which are cooler and less erosive than those from the main propellant. The discharge nozzle 6 is connected to the casing 1 by a sleeve 7, which is separated from a refractory throat member 5 by insulation 8. The propellant 12 may be 50 to 75% by weight ammonium nitrate with 50 to 25% of a binder such as a polysulphide polyisobutadine, polyurethane or vinyl polyester together with a plasticizer.
Patent GB-1376041-A (GB)
Title: Anti-skid control system for motor vehicles
IPC: B60T8/50
Filed: 1972-05-25
Abstract: 1376041 Anti-skid control systems ALFRED TEVES GmbH 25 May 1972 [27 May 1971] 24694/72 Heading F2F An anti-skid control system for controlling fluid pressure actuated brakes of at least one wheel 4 of a motor vehicle by controlling the fluid pressure of a motor vehicle by controlling the fluid pressure applied to the wheel brake cylinder 3 in response to signals from a wheel sensor 12 indicative of the state of deceleration/reacceleration of the wheel and/or of the vehicle and initiating a skid-control cycle, comprises a source 14 of fluid pressure medium, a pedaloperated modulation valve 1 for controlling the fluid pressure applied to the wheel brake cylinder via a pressure medium line 2, an input valve 5 in series with the line 2 and responsive directly or indirectly to signals from the sensor to open or close the line to the brake cylinder, an electromagnetically-actuable output-valve 7 responsive to signals from the sensor to close or open a shunt path 6 from the line 2 to a brake fluid reservoir communicating with the pressure medium source 14, and an electromagneticallyactuable throttle element 10 arranged in the system to control build-up of pressure gradually in the brake cylinder whenever a skid-control cycle, initiated by signals from the sensor, is terminated. The throttle element 10, following its de-energization at the termination of a control cycle, reverts to its initial condition. As shown, the valve 1 transmits the pressure of an accumulator 14 which is charged by a pump 9 via a valve 13, and the valves 5, 7 and element 10 are electromagnetically operated upon receipt of signals from a control unit 11 connected to the sensor 12. In the rest position of the valves 5, 7 and element 10, pressure is built up in the brake cylinder 3 via the valve 1 and if, due to excessive brake pressure, wheel 4 tends to lock, signals from the unit 11 causes valves 5, 7 and element 10 to adopt their switched positions whereby pressure medium in that section of the line 2 separated from the valve 1 expands through line , 6 into the reservoir 8, the pressure increase in the brake circuit and the new deceleration of the wheel 4 being brought about in a delayed manner due to throttle element 10; upon re-acceleration of the wheel, valve 5 returns to its open position but element 10 remains in its throttled position for a certain period until the pressure in the brake cylinder 3 has gradually adapted to the pressure predetermined by the valve 1 when the element 10 returns to its initial full open position. In a modification, the line 6 is connected via the throttle element to a cylinder having therein a spring-loaded piston which operates the input valve in the cylinder, the chamber being also connected to the reservoir via the output valve.
Patent GB-1434894-A (GB)
Title: Aluminium etching
IPC: C23F1/36
Filed: 1974-06-04
Abstract: 1434894 Etching PENNWALT CORP 4 June 1974 [1 March 1974] 24700/74 Heading B6J A chromate-free etching solution for aluminium or alloys thereof comprises an aqueous solution containing: 15-200 gms./litre of alkali metal hydroxide, 0À5-15 gms./litre of a chelating agent effective to suppress the precipitation of alumina; and 0À0001-1À0 gms./ litre of an oxidizing agent. When using the solution in an etching process the oxidizing agent concentration is maintained throughout. The chelating agent may be sorbitol, gluconic acid, glucoheptonic acid, mannitol, ascorbic acid, sorbore, tannic acid, ethylendiamine tetracelic acid, sodium chrom glycosate, diglycolic acid, picatinic acid, aspartic acid, dithiooxamide, d-gluconolactone or l-rhamnose. The oxidizing agent may be a persulphate, peroxide perborate periodiate, chlorite, chlorate, perchlorate iodate hypochlorite, nitrite, bromate, peroxyphosphate or nitrate. Other suitable oxidizing agents are oxygen and chlorine dioxide gases. Oxygen may be generated by electrolysis of the etching solution using the aluminium to be etched as anode. Etching is at 75-190 F.
Patent GB-263928-A (GB)
Title: Improved construction of lock nut for bolts and the like
IPC: F16B35/00
Filed: 1925-10-05
Abstract: 263,928. Bamburg, G. Oct. 5, 1925. Locking nuts.-The bolt is engaged by one or more righthanded grub screws D and by one or more left-handed grub screws C.
Patent GB-501188-A (GB)
Title: Improvements in film-feeding devices for cinematographs
IPC: G03B1/22
Filed: 1938-08-24
Abstract: 501,188. Kinematograph apparatus. BOSCH GES., R. Aug. 24, 1938, No. 24868. Convention date; Aug. 24, 1937. [Class 97 (i)] The claw arm of an intermittent feed mechanism wherein the arm embraces a cam, and the arm and cam have different coefficients of expansion, comprises two or more plates side by side, and resiliently connected in a manner tending to reduce the effective size of the cam aperture. The arm may comprise two plates a<1>, a<2>, each of synthetic resin containing textile fabric, and having apertures b embracing a steel cam d. The plate a<1> has an extension el carrying claws f, and a lug i<1> linked by a compression spring h to a lug i<2> on the plate a<2>, the'plate a<2> being carried by a pivot pin g on the plate a<1>. The plates have slots w engaging a fixed, but rotatable, bush x, eccentrically mounted, and have weightreducing holes z ; the hole in the plate a<2> receiving the pin g may be of larger diameter than the pin. The cam may be screwed to discs k m, the disc m being secured to a driving shaft o, and being provided with a knob v, covered with heat-insulating material, to permit hand adjustment. A groove for lubricant may be provided round the aperture b in the face of the plate a<3> contacting with the plate a<1>, and lubricating grooves r u may also be provided, the .groove u being in a ring t pressed by a spring s. A third plate may be provided on the side of the plate a<1> remote from the plate a<2> and be connected to the plate a<1> by a spring tending to displace it in one direction or the other.
Patent GB-1035196-A (GB)
Title: Bobbin gear for a trawl net
Inventor: MOSS FRANK ARTHUR STAVUS
IPC: A01K75/06
Filed: 1962-06-29
Abstract: 1,035,196. Bobbin gear for trawl nets. PELTERS CO. Ltd. March 29, 1963 [June 29, 1962], No. 24959/62. Heading A1A. A bobbin gear for a trawl net in which at least the larger bobbins in the bosom of the net are of solid rubber and made by laminating layers of uncured carbon-reinforced natural rubber mix in a mould and vulcanizing the laminated assembly by heating under pressure. The bobbin gear comprises two outer sections of flexible wire carrying rubber rollers, two next inner sections carrying rubber bobbins alternating with wooden or laminated rubber becket bobbins, and a middle section carrying the large laminated rubber bobbins alternating with becket bobbins.
Patent GB-1474132-A (GB)
Title: Photographic materials containing blocked development  restrainers
IPC: G03C8/16
Filed: 1974-06-05
Abstract: 1474132 Photographic material containing blocked development restrainer EASTMAN KODAK CO 5 June 1974 [5 June 1973]  24959/74 Heading G2C  A photographic material comprises a support and (i) at least one layer thereon containing a silver halide emulsion and/or (ii) an image-receiving layer, and also comprising a blocked development restrainer of the formula:- where Z completes a non-metallic 5- or 6-membered heterocyclic ring which may be substituted or fused with another ring, the heterocyclic ring, taken together with the S atom shown, providing a silver halide development restrainer upon cleavage from the remainder of the molecule. The heterocyclic ring may be a tetrazole, triazole, imidazole, benzimidazole, pyrimidine, benzoxazole or benzothiazole. The only specified blocked development restrainer is 1-phenyl-5-(#-cyanoethylthio)-tetrazole. The silver halide material may contain a dye image providing material e.g. an oxichromic compound (see Ex 1-3). Examples 4 and 5 illustrate photographic materials containing negative silver halide emulsions having associated therewith positive-working, initially immobile, dye-releasing compounds which undergo a nucleophilic displacement reaction to release a diffusible dye in the undeveloped areas. The blocked development restrainer is preferably incorporated in a silver halide emulsion layer. The photographic material may be a colour diffusion transfer film unit (see Ex 2, 3 and 5). Generally, the release of the development restrainer is achieved by contact with alkali, but it is possible to aid or achieve cleavage by elevating the temperature.
Patent GB-302959-A (GB)
Title: Improvements in and relating to road paving and like blocks
IPC: E01C5/22
Filed: 1927-09-22
Abstract: 302,959. Universal Rubber Paviors, Ltd., and Gaisman, L. Sept. 22, 1927. Block paving.-A roadway or other paving is formed of parallel and continuous, or substantially continuous, lines a of rubber or the like alternating with parallel and continuous lines b of relatively hard material running in the normal direction of traffic, the rubber &c. lying in grooves in the harder material. The dimensions and spacing of the rubber are such that the wheels of most vehicles run wholly or partly on the rubber. The roadway is usually formed of blocks of hard mouldable material, such as brick, terra cotta, metal, or concrete, with one or more inlaid rubber strips, and such blocks may be arranged in staggered relation or in line with each other. The rubber-receiving grooves c in the blocks are formed with vertical or undercut sides, as in Fig. 3, and the floor of each groove is provided with three undercut recesses d' - d<3>, the central recess d<2> being circular and the end recesses segmental in plan. Each recess may be provided with one or more sinkings c. A rubber strip a may be moulded into each groove so as to fill completely the groove, recesses, and sinkings, and it mav project above the top face of the block. Notches c' may be formed in the sides of the grooves, and furher sinkings c<2> may be provided on the floor of the grooves as shown in Fig. 11. Instead of the recesses d<1> - - d<3>, projections may be formed in the floor of the groove c, the recesses being in the rubber. The floor of each groove may be flat, concave, convex or corrugated, and the tread surface may be flat, ribbed or studded. The base-block mav be moulded on to the rubber strips. The rubber strips may have a hard lower layer and a relatively resilient upper portion. At cross roads, the blocks are formed with the rubber strips running in two directions, for example at rightangles as shown in Fig. 16. In the modification shown in Fig. 8, the grooves c do not extend the full length of the block and a thin wall of block material is provided at each end of the rubber strip. Specifications 194,618, 214,433, 247,009, [all in Class 87 (i), Bricks &c.], and 248,898, [Class 87 (ii), Moulding plastic &c. substances], are referred to.