baber/WOPTO huggingface dataset:
Patent GB-413038-A (GB)
Title: Improved means of control for regenerative electric motors
IPC: B60L15/12
Filed: 1933-01-31
Abstract: 413,038. Control of D.C. motors. GUY MOTORS, Ltd., Fallings Park, Wolverhampton, and STEVENS, W. A., Castlemaine, London Road. Maidstone. Kent. Jan. 31, 1933, No. 2930. [Class 38 (iii).] Regenerative braking.-In a control system for a compoundwound traction motor b with regenerative braking and means for shunting the series field winding c during motoring and regeneration, a magnetic system controlled by the armature current is provided for automatically increasing the resistance of the said shunt whenever the armature current exceeds a predetermined maximum. In the arrangement shown, movement of the driving pedal to its first position closes contactors e, el, short-circuits a resistance m in series with the shunt field winding k, and connects the motor to the line through the main series resistance d. Further movement of the driving pedal closes contactors f and successively short-circuits sections of the resistance d, after which a contactor h closes to insert a shunt i across the series field winding c. Further forward movement of the pedal successively short-circuits sections of the shunt field resistance l until the motor attains a high speed. On allowing the pedal to return towards the middle position, with resulting strengthening of the shunt field, the machine acts as a generator and returns current to the line through the series field winding c. When this happens, a polarized relay controlled by windings a<1>, j closes a contactor n, which inserts a variable shunt across the winding c, to reduce the demagnetizing effect of the latter. This shunt comprises a resistance o and a series of parallel resistances s<1>-s<4> adapted to be cut in or out by movable contact arms q<5>-q<8> carrying armatures q<1>-q<4> mounted above an elongated core p magnetized by a winding p<1> in series with the armature b. The contact arms are normally held in engagement with fixed contacts r<1>-r<4> by adjustable springs r. As long as the current through the winding p<1> is below the predetermined value, the series winding c is practically short-circuited through s<1>, but as soon as the current exceeds this value the circuit is opened at s', with the result that the series winding will set up a field opposing that of the shunt winding k and tending to reduce the current. If the current is still excessive, one or more of the shunt resistances s<2>-s<4> is cut out by attraction of the corresponding armature q<2>-q<4> to increase still further the demagnetizing effect of the series winding. In a modification, Fig. 4 (not shown), the contacts r<2>-r<4> following the contact connected to the short-circuiting piece s<1> are of carbon, and the resistance at the contacts increases when the pressure is reduced by the action of the armature current.
Patent GB-113160-A (GB)
Title: Improvements in Apparatus for Supplying a Mixture of Gas and Air or the like.
IPC: B01F23/10
Filed: 1917-02-28
Abstract: 113,160. Lights of London, Ltd., and Docking, A. Feb. 28, 1917. Fluid-actuated valves; closure members, compound.-Relates to apparatus for supplying a mixture of gas and air and of the kind described in Specification 18130/10 in which the two gases are drawn in by means of a rotary compressor through two inlets controlled by independent valves, these inlet valves and the by-pass valve which controls the circulation of the mixture to compensate for the partial closing of the inlet valves being all connected to and controlled by a diaphragm which is subject to the service pressure. The gas and air inlets are now controlled by a single diaphragm-controlled valve which is adjustable to increase the area of one inlet and decrease that of the other, and means is provided for independently adjusting the area of the port in connexion with the by-pass valve. The vertical cylindrical mixing chamber G is fitted with a liner M formed with gas and air inlets H, J which are controlled by a hollow cylindrical piston-valve N operated by a diaphragm F in a chamber E, which com. municates by a small port C' with a chamber C situated above the compressor A and connected bv a branch D to the service pipe B. The valve N slides on a vertical spindle O which is adjustable angularly to cause the valve N to vary the effective width of its ports N', N<2>. The pipe L leading from the outlet K of the chamber G to the compressor A is connected to the pipe B by a by-pass valve D<1>, which is carried under the chamber C and fitted with a cylindrical valve R operated by the stem F<1> of a diaphragm F. The liner S in which the valve R works can be ad. justed angularly in the valve casing Q, or be raised and lowered by means of a screw S<2> to regulate the area of the port S<1>.
Patent GB-1208662-A (GB)
Title: Quick access high voltage packaged contactor
IPC: H01H31/00
Filed: 1968-01-19
Abstract: 1,208,662. Electromagnetic contacts; highvoltage switches. GENERAL ELECTRIC CO. 19 Jan., 1968 [27 Feb., 1967], No. 2974/68. Heading H1N. A high-voltage contactor assembly comprises support frames 29, 31, having mounted therebetween mutually insulated fixed contacts 11, 12, 13 and coacting pivotally mounted movable contacts 14, 15, 16, arc chutes 91, 92, 93, on a pivotal support 119 so that the complete arc chute assembly may be pivoted aside to expose the contacts, Fig. 1, and three magnetic blowout coils 34, 35, 36, connected to the fixed contacts 11, 12, 13, and providing for connections thereto, e.g. at 55 and 57. Within each blow-out coil, e.g. 36, the iron core 43 is rotatable to move polepieces 49, 50, from the inspection position, Fig. 1, to the operating position, Fig. 2. Energization of contactor coil 19 attracts a solenoid armature 21 attached to a main shaft 23 supporting the movable contacts 14-16 such that the co-operating contacts engage, and compression of each spring 70 causes further pivotal movement of the movable contact supporting member 65 on rocker shaft 67 and sliding or wiping of the contacts 13, 16 against each other. Arcing horns 64, 66, are provided to receive the arc directed thereto by the magnetic field produced by blow-out coil 36 and polepiece 49 during opening. The pivotal support 119 also mounts fuses 82, 98, earthing clips 101, 102, and terminal clips 103, 105, 107, for connecting the fuses to busbars such as 175, Figs. 4, 5 (not shown), when an operating handle (not shown) is moved to connect the contactor to the power supply bus-bar, such movement disengaging the earthing clips 101, 103 from earthing fingers such as 177, Figs. 4, 5 (not shown). The contactor assembly is placed into its enclosure by means of a sliding channel 41, a handle and lever arrangement 151 then forcing the contactor into its operating position, Fig. 3.
Patent GB-1059336-A (GB)
Title: A new or improved form of credit totalising unit
Inventor: MAXWELL STEWART ALFRED
IPC: G07F5/22
Filed: 1964-11-04
Abstract: 1,059,336. Counting-apparatus; coin-freed mechanisms. FISHER & LUDLOW Ltd. Nov. 4, 1964, No. 3005/66. Divided out of 1,059,335. Headings G4D and G4V. The description and drawings are identical with those of the parent Specification but the claims differ.
Patent GB-1418727-A (GB)
Title: Glass container inspection machines
IPC: B65G47/24
Filed: 1973-01-19
Abstract: 1418727 Photo-electric flaw detection EMHART ZURICH SA 19 Jan 1973 [19 Jan 1972] 3011/73 Heading G1A A detachable, optical sensing head for faulttesting glass containers is made by adjustably mounting 96 light emitters and sensors on support rods attached 98b to a grid 84a aligned with a container in the testing apparatus or in a mock-up, removing the emitters and sensors and linking 93a Fig.6 the rods 92a to transfer rods 92b held in an auxiliary grid 84b, removing the rods 92a and grid 94a and aligning further support rods to the auxiliary assembly, casting their free ends in a mould, Fig.7, (not shown), and re attaching emitters and sensors to produce a fixed replica of the first setup which can readily be fitted into the testing apparatus without further alignment. In the apparatus Fig.1 (not shown), containers on conveyer (102) are diverted (47), decelerated by belt (37) and fed by belt (39) at equal intervals to a testing station where the container is rotated at least once on its axis by a co-operating driven roller (57) and solenoid-operated pressure rollers (42, 43) which wrap part of a drive belt (38) about the container periphery. Further guide rollers coupled to the arms (44, 46) locate the container neck whilst light is directed onto the neck and detected by the emitters and sensors which are coupled by light guides to light sources and photodetectors in a control panel. The tested container is then transported by conveyer (53) and the belt (52) either back to the main conveyer or is rejected by an air blast. The sequence of operations is controlled by proximity switches. The testing apparatus forms the subject of Specification 1418728.
Patent GB-809488-A (GB)
Title: Carbazole derivatives and process for the production thereof
IPC: C07D401/06
Filed: 1957-01-28
Abstract: The invention comprises carbazole derivatives of the general formula <FORM:0809488/IV (b)/1> (wherein X1 and X2, which may be the same or different, are hydrogen or halogen atoms, or lower alkyl or lower alkoxy groups having from 1 to 4 carbon atoms, x is 0, 1 or 2, the piperidine radical being substituted in the 3- or 4-position when x is 0 and in the 2-, 3- or 4-position when x is 1 or 2, and R is an alkyl group), their acid addition salts, and their preparation by condensing a carbazole of the general formula (II) <FORM:0809488/IV (b)/2> with an N-alkylated-piperidyl derivative of the general formula <FORM:0809488/IV (b)/3> (substituted as above).  The reaction is carried out in the presence of an alkali metal condensing agent, e.g. an alkali metal or hydride, amide or oxide thereof, in an inert organic solvent, e.g. an aromatic hydrocarbon, or high-boiling ether (preferably having a boiling-point between 120 DEG  and 150 DEG  C.); alternatively, an N-alkylatedpiperidyl derivative of the general formula above is condensed with a Grignard derivative of a carbazole of the general formula (II).  The products may be converted into acid addition salts if desired.  Examples describe the preparation of 9 - (N - methylpiperidyl - 3 - and - 4)-carbazole, 9 - (N - R - 3 - piperidylmethyl)-carbazole (R=methyl, ethyl, n-propyl), 9-(N-R-4-piperidylmethyl)-carbazole (R=methyl, ethyl), 9 - (N - methyl - 2 - piperidylmethyl) - carbazole, 9 - [b  - (N - methylpiperidyl - 2) - ethyl] - carbazole, 9 - (N - methyl - 21 - piperidylmethyl) - 3 - methyl-, -3-methoxy- and -2-chloro-carbazole.
Patent GB-1197551-A (GB)
Title: Treating Minute Capsules to Reduce the Permeability of the Capsule Walls
IPC: B01J13/14
Filed: 1969-01-20
Abstract: 1,197,551. Treating microcapsules. NATIONAL CASH REGISTER CO. 20 Jan., 1969 [29 Jan., 1968], No. 3075/69. Heading B8C. [Also in Division C3] Microcapsules having walls of hydrophilic polymeric material are treated to reduce their permeability to fluids by effecting free radical polymerization of a monomer within the interstices of the wall material whereby a polymer is formed and permeates the wall material. The wall material may be any hydrophilic polymer, e.g. gelatin, gum arabic, carageenan, polyvinyl pyrrolidone, poly vinyl alcohol, poly acrylate or maleic anhydride co-polymers which contain chemically bound or complexed transition metal ions (Fe, Co, Ni, Cu, Cr (III), U or V (III or IV) which are thought to be necessary for the reaction to occur. The monomer (e.g. a free-radical polymerizable olefin, acrylate or vinyl-type monomer) may be introduced into a liquid in which the capsules are suspended together with an initiator (e.g. a peroxide, azo compound or peracid) and the conditions adjusted so that polymerization occurs, the transition metal ions inducing the reaction within the capsular wall material.
Patent GB-605844-A (GB)
Title: Arrangement of the work table for clamping work pieces on the base plate of radial boring machines and fixation of the arm support on the base plate
IPC: B23Q1/28
Filed: 1946-01-31
Abstract: 605,844. Drilling-machines. WEISS, A. Jan. 31, 1946, No. 3118. [Class 83 (iii)] A radial arm drilling - machine with an arm support 6 has a base-plate 1 provided with recessed bearing surfaces 8 for a displaceable worktable 10, and with a front side which is concentric with the pillar 3 and is formed with angularly-spaced grooves 16, 21 for guiding the arm support horizontally and vertically, the arm support being locked in position by at least one wedge-shaped bar 25 and two clamping eccentrics 40. The arm-support 6 carries rollers 18 and 22 running in the guidegrooves 16 and 21, and an electromagnet which is actuated to turn shafts 42 by means of levers to allow springs 26 to advance the wedges 25 and to rotate the eccentrics 40, thus clamping the support to the base 1.
Patent GB-395775-A (GB)
Title: Process for the preparation of un-vulcanised india-rubber in crumb or powder form
IPC: C08C1/00
Filed: 1932-02-03
Abstract: Rubber in the form of powder or crumb is made by adding a salt of nitrous acid, such as sodium nitrite, to latex, coagulating with an acid, lightly pressing the coagulum, and disintegrating. 1-50 per cent of sodium nitrate may be added to latex, and the amount of acid added should be sufficient to coagulate the rubber, and also to react with the nitrite, and to neutralize any ammonia &c. present.  If the latex has been preserved with ammonia, it is desirable to add a protective colloid such as casein to ensure gradual coagulation. According to an example, to 1000 gm. ammonia preserved 40 per cent latex is added 50 ccm. of a solution containing 10 gm. casein per 100 ccm. of 10 per cent ammonia, and 10 gm. sodium nitrite in 100 ccm. of water.  Coagulation is effected by the addition of 50 gm. glacial acetic acid in 500 ccm. of water.  The coagulum is washed in a filter cloth, and pressed into a slab, which is rubbed through a sieve.  The powder obtained is dried in thin layers.  Specification 395,774 is referred to.
Patent GB-1177832-A (GB)
Title: Mail Sorting Letter or Flat Article Diverter
IPC: B07C3/06
Filed: 1967-01-23
Abstract: 1,177,832. Delivering sheets; sorting postal mail. TELEPHONE & ELECTRICAL INDUSTRIES PTY. Ltd. 23 Jan., 1967 [27 Oct., 1966], No. 3300/67. Addition to 1,051,204. Headings B8A and B8R. The mail sorting letter diverter disclosed in Specification 1,051,204 is modified in that the air pressure within the traps is reduced by a pump communicating with ports in the trap walls, or valve means may be provided so that the pressure within a selected trap may be reduced when the trap is open, whereby a letter may be moved along a shoot by suction or gravity or both. The traps may be above the driving belt.
Patent GB-275870-A (GB)
Title: Improvements in packages for cigarettes and like articles
IPC: B65D75/54
Filed: 1926-05-06
Abstract: 275,870. Molins, W. E. May 6, 1926. Fittings, internal; contents, facilitating access to.-Relates to packages, for cigarettes and the like, formed by folding a wrapper into a U-shaped block-ended container having a rigid rectangular frame internally disposed so as to reinforce four sides. The package, which mav be formed on a machine as described in Specification 275,705, [Class 94 (i), Packing &c.], comprises an outer wrapper 9 folded as shown in Fig. 6 about the contents and about a cardboard &c. strip 3 - - 7, Fig. 2. The base 3 of the strip may thus be inclined by pulling on one of the parts 6, 7 to permit the cigarettes to be exposed at the end of the packet in stepped formation for facilitating removal, and the base may be returned without catching the folds of the wrapper.
Patent GB-141453-A (GB)
Title: Improvements relating to course indicators and recorders
Filed: 1919-02-11
Abstract: 141,453. Hartnett, J. T. Feb. 11, 1919. Course-recording apparatus.-Apparatus for indicating or recording the course of a motor-vehicle etc. comprises a map and pointer movable in directions at right-angles to each other and operated from a running-wheel of the vehicle, and electricallyoperated means whereby the relative speeds of the map and pointer are varied according to the position of the steering-wheel. The apparatus consists of a wormwheel 12 having a friction surface and driven by a worm 13 on the shaft 14 connected by gearing 15 - - 20 to a flexible shaft 21 driven from a running-wheel of the car. Mounted above the wheel 12 are two friction wheels 25, 25' carried by squared shafts 22, 23, along which they can be moved by a bracket 35 carried by a screwed shaft 37. The shaft 22 is connected by gearing 27, 28 to rollers 2 carrying the map 3, and the shaft 23 is connected by gearing 29 - - 32 to a screwed shaft 10 to move the pointer &c. 6 over the map. The shaft 37 is rotated to displace the wheels 25, 25<1> across the disk 12 by means of a motor 50, Fig. 5, which drives a shaft 38 connected by gearing to the shaft 37. The circuit of the motor 50 includes variable resistances 51, 52 operated by an arm 74 turning with the steering-wheel, and also a reversing-switch 76 also operated by the steering-wheel. A variable resistance 53, controlled by an arm 54 actuated by a governor according to the speed of the car, is included in the motor circuit; the speed and direction of rotation of the motor are thus dependent on the position of the steering-wheel and on the car speed. In order to reverse the directions of the movements of the pointers &c. at the necessary intervals, so that the apparatus may function for all directions of travel of the car, cam-disks 58, 60, 62 are provided to actuate clutches 16, 49, 34 in order to operate reversing- gears carried by the shafts 14, 37, 10. Indicators may be provided to show whether the disks 58, 60 are correctly adjusted to the particular direction in which the car is travelling. To allow of initial adjustment of the disks 25, 25<1> the shaft 37 carries a hand-wheel 37' and a worm 65 operating a worm-wheel 66 having compass graduations which are read against the pointer 67, the wheel 37' being turned until the reading of the pointer 67 corresponds with the compass bearing of the course on which the car is started. The pointer &c. 6 can also be set initially by hand.
Patent GB-965866-A (GB)
Title: Graft copolymers of vinyl esters and process for making same
IPC: C08F271/02
Filed: 1963-01-28
Abstract: Graft copolymers are made by polymerizing one or more vinyl esters in admixture with poly-(N-vinylpyrrolidone) under the action of a free radical-forming polymerization initiator and/or ultra-violet light. Vinyl esters specified are vinyl acetate, propionate, butyrate, isooctanoate, isononanoate, stearate and benzoate, which may be used with comonomers such as vinyl chloride, maleic and fumaric esters and crotonic acid. Free-radical initiators specified are organic and inorganic peroxy compounds, redox systems and azo compounds. The polymerization is preferably carried out with the poly(N-vinylpyrrolidone) in solution, e.g. in an organic solvent, water, or the vinyl ester itself.  The examples describe the graft polymerization of poly(N-vinylpyrrolidone) in systems comprising: (1-5) vinyl acetate, methanol and azobisisobutyronitrile; (6) vinyl acetate, water, isopropanol and mixture of ferrous ammonium sulphate and hydrogen peroxide; (7) vinyl acetate, isopropanol and dibenzoyl peroxide; (8) vinyl acetate, vinyl benzoate, methanol and azobisisobutyronitrile; (9) vinyl propionate, crotonic acid, isopropanol and azobisisobutyronitrile; (10) vinyl acetate, vinyl isononanoate, ethanol, tert. butanol and azobisdimethylvaleronitrile; and (11) vinyl isononanoate, dibutyl maleate, water, diacetyl peroxide and azobisisobutyramidine hydrochloride. Depending upon the relative proportions of the poly(N-vinylpyrrolidone) and vinyl ester components the exemplified graft copolymers are soluble in water or organic solvents.  The product of (9) is soluble in aqueous ammonia.
Patent GB-104541-A (GB)
Title: Improvements in Hand Grenades and other Explosive Shells.
Inventor: ASBURY HARRY ELIAS
IPC: F42B30/04
Filed: 1916-03-09
Abstract: 104,541. Asbury, H. E. March 9, 1916. Projectiles; projectile fuses. - Relates to grenades and other explosive projectiles provided with percussion fuses comprising a spring striker held cocked by a pair of triggers maintained by a distance-piece until a projecting member is forced inwards by the target. The invention consists mainly in mounting the triggers in a slotted plate. In the rifle grenade shown in Fig. 1, the triggers 28 pass through slots in the plate 25 and bear thereon with heels 31. The distance-piece 43, which maintains the triggers, is made in one with the projecting member 35, which is pressed outwards by a spring 36, and is locked before use by a cotter pin 37. The striker 8 is made hollow and contains the percussion cap 11, the detonator 10, and a cotton packing 44. The front of the grenade is made heavy, and the base of light stampings, to which the rod 17 is secured. The grenade body is cast with grooves, and washers are interposed between various of the screwed parts. The distance-piece 43 may be a ring separate from the projecting member 35. The projecting member may be provided with a large head, in which case the cotter pin is inserted through this head from the front and bent to form a distance-piece between the head and the nose of the projectile. The striker may be solid and with a striking point; the percussion cap and detonator are then beneath the striker.
Patent GB-401639-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F16J10/04
Filed: 1932-02-08
Abstract: 401,639. Cylinders. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Feb. 8, 1932, No. 3634. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 3, 1932]. [Class 7 (ii).] Liners, made of steels capable of withstanding chemical action by combustion products, and having a tensile strength of 100 kilograms per square millimetre when annealed at about 600‹ C., are combined with light metal pistons made of an aluminium alloy having a heat conductivity which is greater than that of the liners and which increases with temperature. Suitable steels are : (a) Chromium steel alloys having about 10 to 14 per cent chromium; (b) steel alloys, resembling high speed steels, having 8 per cent tungsten, or (c) steel alloys having not more than 2 per cent vanadium and less than 8 per cent tungsten, chromium, molybdenum, titanium, beryllium, or mixtures thereof.
Patent GB-1205499-A (GB)
Title: Improvements in coupling devices for interconnecting straddle slings to cargo containers
IPC: B66C1/66
Filed: 1968-01-24
Abstract: 1,205,499. Stud and socket fastenings. HUTSONS Ltd. and A. C. LOUDON. 18 April, 1969 [24 Jan., 1968], No. 3655/68. Heading E2B. A coupling device for joining a shackle linked to a cable or chain of a straddle sling to a corner block of a cargo container 22 comprises a one piece casting or stamping forming a boss 10, an arm 11 extending radially from the boss, the arm at its free end having a hole 13 for the reception of a shackle pin 14, a neck 17 projecting from the boss and two arms 18, 19 extending across the neck such that when the arms are inserted in an elongated slot 20 in a corner block and a load taken by the shackle the arm 11 pivots with the cable or chain and the arms 18, 19 rotate to lie across the slot 20 to secure the device to the container.
Patent GB-108820-A (GB)
Title: Improvements relating to Bullets.
Inventor: DYMOCK JOHN
IPC: F42B12/72
Filed: 1917-03-14
Abstract: 108,820. Dymock, J. March 14, 1917. Materials, special, cords of. -A paper core for jacketed bullets consists of a twisted rod a of paper which is covered by one or more spiral layers of paper strips b. The rod is weighted to the required weight by means of a size of litharge, or red or white lead, or by twisting or plaiting metal wire round it before the paper strips bare coiled round. The completed rod is cut into the desired lengths and pressed to shape. The twisted paper rod a may be made on the machine described in Specification 8968/14.