baber/WOPTO huggingface dataset:
Patent GB-913492-A (GB)
Title: Improvements in or relating to processes for improving the surface adhesion strengthof plastic materials
IPC: B29C59/14
Filed: 1960-02-11
Abstract: <PICT:0913492/IV(a)/1> A process for improving the surface adhesion and adhesive strength of plastic material in respect of a layer for example of printing ink or lacquer to be applied thereto comprises treating the plastic material in a treatment chamber containing gas under low pressure by exposing the surface of the material to a plasma of a low pressure electrical gas discharge in said chamber, the plasma being caused to act simultaneously on the exterior and interior surfaces of a hollow body composed of said plastic material and having at least one aperture therein.  Hollow bodies 8 having an opening of small cross-section are supported in a negative pressure chamber 1 on insulating caps 7 covering a number of rod-shaped electrodes 2 connected by a support 3 surrounded by an insulating sleeve which also surrounds the lower parts of the electrodes.  The support 3 is connected by an insulated lead-in conductor through a load resistance 5 to one pole of a D.C. or A.C. source 6, the other pole of which is connected by an insulated lead-in conductor 10 to a common laminar electrode 9.  A glow discharge fills the bodies 8 and the spaces between them.  When the bodies 8 have large openings, the insulation of the support 3 and the lead-in conductor may be omitted. Air pressure (oxygen for treating polyethylene) is 0,1-1 mm. mercury, operating voltage several hundred volts, and current density several milliamperes per square centimetre.  When using D.C., the electrodes 2 should be negative.  Ignition electrodes 11 are provided to reduce the ignition voltage required.  The common electrode may be replaced by a second series of individual electrodes each supporting a body. Auxiliary insulating members, perforated plates, grids or tubes, may be placed between the electrodes to alter the form of the discharges. When high frequency discharge is used, the electrodes need not extend into the interiors of the bodies, each body being supported on an insulating member and disposed between a co-operating pair of electrodes or within a coil.  The field strength may be 30-40 volts/cm. in the case of air at a pressure of 0,1 mm. Hg and with a frequency of 40 megacycles per second.  When using a coil, in the case of an electromegnetic discharge, the bodies are supported near the inner surfaces of the coil, or a plurality of coils may be used, or a coil may be combined with a pair of parallel electrodes for H.F. electrical discharge for treatment of bodies near the coil axis. Glow discharge and H.F. apparatus may be combined within a single chamber.
Patent GB-343310-A (GB)
Title: Improvements in ventilating and air supply systems
IPC: G05D23/275
Filed: 1930-02-14
Abstract: 343,310. Ventilating and heating apparatus ; valves. NEILSON, T. and MARSHALL, J., 11, Cogan Street, Pollokshaws, Glasgow. Feb. 14, 1930, No. 4955. [Class 137.] Forced ventilation ; air, heating.-In a ventilating and air supply system in which the air supply is maintained within given temperature limits by a tempering medium such as steam supplied through valves automatically controlled by a temperaturesensitive element, such element is located in a low tension electric circuit and the valves are operated by electric means located in a relatively high tension circuit, the two circuits being coupled by means of a relay. Air is drawn into a casing 1 by a fan or blower 2 and delivered through a steamheated casing 4 to an air trunk 7. When the tempered air reaches a given temperature a contactmaking thermometer 8 associated with the trunk 7 is adapted to close a low tension circuit including the primary of a relay 9. The secondary of the relay is connected in a relatively high tension circuit which includes the windings 10e of an electromagnet associated with a valve 10 controlling the supply of steam to the casing 4. The valve 10 includes a plunger 10a associated with the valve discs 10b. On the excitation of the windings 10c an auxiliary valve 10d of the needle type opens and admits steam through the byepass 11 so as to act on the plunger 10a to close the valve. A push-button 20 is provided for testing the electric circuits. In a modification two trunks are provided for supplying air at different temperatures, the nozzles by which the air is admitted to the enclosures being adapted to allow a mixing of the air from the two trunks.
Patent GB-1262801-A (GB)
Title: Improvements in centrifuge
IPC: B04B11/05
Filed: 1970-02-03
Abstract: 1,262,801. Sugar centrifuge. SALZGITTER MASCHINEN A.G. 3 Feb., 1970 [4 Feb., 1969], No. 5016/70. Heading BID. [Also in Division F2] The drum 1 of a sugar centrifuge has a lower opening for discharging the sugar, which opening is normally closed by a frusto-conical sleeve-like hood 7, which is made of rubber and can be raised by rams 9 to open the opening, the hood sliding up spindle 6 and into rigid bell 10 which causes the hood to deform, reducing its effective cross-section to minimise obstruction to the discharging stream and to any auxilliary washing and discharging means in the drum. Bell 10 may be adjustable along spindle 6 compress hood 7 further. The lower edge of bell 10 may be undulating and radiused to help the hood to slide in.
Patent GB-927991-A (GB)
Title: Improvements in or relating to the production of semi-conductor arrangements
IPC: C30B25/12
Filed: 1961-02-10
Abstract: <PICT:0927991/III/1> <PICT:0927991/III/2> A plurality of semi-conductor devices is produced by placing semi-conductor bodies on a metallic support in an atmosphere of a gaseous compound of the semi-conductor, heating to join the bodies to the support and to decompose the compound to deposit a semi-conductor layer on the bodies which are then separated by cutting the support.  Fig. 1 shows a reaction chamber with a molybdenum support 24 carrying semi-conductor discs 23.  The support is heated by direct current, or alternatively by induction "loss angle" or radiation.  In the production of a rectifier, P-type silicon discs of low resistivity are placed on a molybdenum plate, etched and heat treated in hydrogen, and a P-type, 2m , 3 ohm. cm. layer is deposited on the discs from an atmosphere of hydrogen, silicon chloroform and boron bromide or another boron halogenide.  A low resistivity, 10m , N-type layer is then deposited on the P-layer and a molybdenum plate or gauze joined to the N-type layer.  Fig. 4 shows a transistor similarly produced comprising a low resistivity P-type layer 7 on molybdenum plate 6, a higher resistivity (5 ohm. con.), 1m , P-type layer 8, a high resistive (50 ohm. con.) P or N or intrinsic layer 9, a 0,5 ohm. con. 5m , N-type layer 10 and a very low resistivity, 50m , P-type layer 11.  A low melting point metal plate 12 is joined to layer 11.  Layer 8 constitutes the collector, layer 10 the base and layer 11 the emitter.  The base support 6 may be of gauze and may first be silicized and may consist of tantalum, carbon or a supported iron layer instead of molybdenum.  Deposition of the various layers may be restricted by masking to form, for example, an upwardly decreasing cross section, and layers other than the first may be produced by alloying or diffusion.  Germanium may be used in place of silicon, deposition being obtained by using germanium tetrachloride or germanium chloroform.  Phosphorus and boron are favoured impurities.
Patent GB-859798-A (GB)
Title: Multiple unit storage file
IPC: A47B81/00
Filed: 1958-02-17
Abstract: 859,798. Filing papers. SHELLY, R. S. Feb. 17, 1958, No. 5100/58. Class 146(1). A storage device comprises an inner tube 13, preferably of spirally wound paper board strip, and a longer outer container 14 having walls 14a tangential to the inner tube. The tube 13 is secured, by glue, at its points of contact with the walls 14a. Metal end caps 11 and 12 fit over the ends of the container 14, the cap 11 providing a permanent closure while the front cap 12 has a door 17 to permit insertion in and removal of rolled-up drawings or the like from the device. Fillets 12d provide a funnel-like opening from the square cross-section of the cap 12 to a circular cross-section opening 20. The door 17 has lugs 17c serving as a handle and as a support for the open door of a storage device immediately above. A leaf spring 23 normally retains the door 17 in closed position. A slideway 25 may retain a card to provide a visual index of the contents. The caps 11 and 12 may be provided with dovetail parts 26, 27 such that the devices may be locked together to form multiple units having horizontal tiers 31, Fig. 8 (not shown). Strips of cardboard, not shown, may fit in vertical slots formed between adjacent containers to prevent relative horizontal movement of the tiers 31. Alternatively, or in addition slots 34, Fig. 1, receive locking rods 36, Fig. 11 (not shown) for the same purpose. A zig-zag folded insert 38, Fig. 3, may be used where the drawing to be filed is much shorter than the tube 13, thereby preventing the drawing being pushed too far into the tube.
Patent GB-252446-A (GB)
Title: Improvements in or relating to clutch mechanism, specially suitable for use in telegraphic tape punching, transmitting, receiving and printing apparatus
IPC: H04L13/04
Filed: 1925-02-24
Abstract: 252,446. Creed & Co., Ltd., and Creed, F. G. Feb. 24, 1925. Clutches, friction and ratchet; gearing for stopping and starting machinery.-In contracting-coil friction clutches for coupling a rotary body, such as a cam or group of cams, to a driving-shaft, the stresses due to their disengagement by a positive detent are diminished by placing the abutment for engaging with the detent at a distance from the free end of the coil, and by providing another abutment connected to the coil near the end secured to the rotary body and arranging a second detent to engage this abutment shortly after engagement of the first. The clutches may be used in telegraphic tape-punching, transmitting, receiving, and printing apparatus, such as described in Specifications 165,820 and 185,170 [both in Class 40 (iii), Telegraphs, Electric], 191,093, [Class 31 (ii), Punching and perforating machines &c.]. 204,398, 224,563, 228,610, and 228,842, [all in Class 40 (iii), Telegraphs, Electric]. A driving-shaft 2 carries on its reduced end 2<a> a sleeve 3 provided with cams 3*, the clutch coil 1 normally gripping both the parts 2, 3 and being anchored to the sleeve 3 by an internal pin 1<b> situated at a distance from its end. A spring-ring 8, carrying an abutmennt 6, engages the coil 1, at about one convolution from its free end, by a rivet head 7<a>, and a ring 11, carrying an abutment 11<a>, engages a non-circular part 3<c>, 3d of the sleeve 3. Detent levers 4, 12, mounted on a common spindle 13, are actuated by a link 15, either mechanically or by an electric relay responsive to line signals, to engage the abutments 6, 11<a> successively.
Patent GB-585560-A (GB)
Title: Amination of dibenzanthrone
IPC: C09B3/30
Filed: 1945-03-02
Abstract: Grey or black vat dyestuffs are obtained by interacting hydroxylamine, its N- or O-sulphonic acids, or their salts, with dibenzanthrone in sulphuric acid at a temperature not higher than 130 DEG  C. in the presence of vanadium or molybdenum or compounds thereof, e.g. ammonium molybdate, vanadyl sulphate and ammonium vanadate.  In examples, dibenzanthrone in sulphuric acid is heated with hydroxylamine sulphate at 97-100 DEG  C. in the presence of ammonium molybdate or vanadium pentoxide to obtain a product which dyes cotton in greenish-grey shades from a blue vat. Specifications 204,241, [Class 2 (iii)], and 564,610 are referred to.
Patent GB-470788-A (GB)
Title: Improved method of casting deoxidised copper
IPC: B22D21/02
Filed: 1936-02-21
Abstract: 470,788. Casting deoxidized copper. AMERICAN METAL CO., Ltd., and HEWGILL, R. Feb. 21, 1936, No. 5312. Addition to 439,002. [Class 83 (i)] Moulds ; mould materials. -In casting deoxidized copper containing a small amount of deoxidizer, such as phosphorus, water is introduced into the mould A as soon as a pool of molten metal has formed therein. The water is preferably introduced as at M in a stream parallel to that of the metal and in sufficient quantity to maintain a pool of water on the metal until the mould is filled. The mould is watercooled, is dressed with oil before pouring, and producer gas or other non-oxidizing gas is introduced at L, as described in the parent Specification.
Patent GB-426091-A (GB)
Title: Improvements in coke and like breakers
IPC: B02C4/00
Filed: 1934-02-19
Abstract: 426,091. Roller-and-breast mills. WEST, F. J., WEST, E., and WEST'S GAS IMPROVEMENT CO., Ltd., Albion Ironworks, Miles Platting, Manchester. Feb. 19, 1934, No. 5389. [Class 59] A coke &c. breaker comprises picks b upon a rotary roll a which turns on its own axis and has a movement from and towards a hopper shoot c<1> from which the coke to be broken slides onto a breast c, the roller breaking the coke on the forward stroke and allowing fresh coke to fall onto the breast in the return stroke. The roller a may have side teeth f engaging a rack g on the breast c. The breast may be perforated and is supported on springs n. The roller is driven by a connecting rod j<1> attached to a crank-pin k and the distance between the picks and breast is adjusted by the movement of a fulcrum pin i attached to the radius link h. Sets of spikes of different pitch may be arranged over parts of the roll, a set being brought into operation in accordance with the size of the broken product required. The roller may be balanced.
Patent GB-1026333-A (GB)
Title: Feeding device for films for use in composing machines in which matter composed is photographed
Inventor: DREYER PAUL
IPC: B41B21/40
Filed: 1963-02-11
Abstract: 1,026,333. Film feeding device. P. DREYER. Feb. 11, 1963, No. 5468/63. Heading G2A. [Also in Division B6] A film feeding and clamping device, especially for use in type composing machines in which composed matter is photographed, comprises a reciprocable slide 2 mounted on a main frame 1 carrying a feeding device and clamping device for arresting the film during exposure. As shown, the slide 2 is supported on guide rails 4 of circular cross section by means of rollers 5, supported in brackets 6 on the slide. The slide has a shaft 10 driven by a motor 11 through reduction gearing 12 both supported on the slide. Springs 13 pull the slide 2 into contact with adjustable abutment screws. The shaft 10 has a cam 16 which by engagement with an adjustably mounted roller 17 displaces the slide against the action of springs 13, the position of the roller 17 and thus the stroke of the slide being adjusted by knurled head 20 on screw 18. Rollers 25, 26, Fig. 2 (not shown) grip the film 27 during rearward displacement of the slide to prevent rewind on roll 28 within casette 29. The roller 25 is depressed by a resilient arm 24 engaged by a cam 23, Fig. 1, at the left hand end of shaft 10. A similar mechanism, actuated by a cam 30 is provided at the right hand end of shaft 10. A cam 32, Fig. 5 (not shown) depresses a stud 33 against the action of a spring 37 to cause a needle 35 to penetrate the film within a slot 36. Cams 32 and 16, Fig. 1, are so timed that needle 35 penetrates the film before forward movement of the slide 2, and permits retraction before return of the slide. Cams 38 actuate a pressure plate 39 Fig. 4 (not shown) which when depressed holds the film flat and in correct position over an opening 40 through which the film is exposed. Discs 21 and 22 on the shaft 10 control flash and the camera shutter for such exposure.
Patent GB-608414-A (GB)
Title: Improvements in or relating to the curing of polymeric materials
IPC: C08K5/14
Filed: 1946-02-22
Abstract: A material comprising a substantially saturated uncured resin and substantially no unsaturated resin, said saturated resin having a polymeric hydrocarbon chain with substituent groups of the class consisting of -X, -SO2X, -COX, -COOH and -COOR, where X is a halogen atom and R is a saturated organic radical, is cured by heating in the presence of a peroxy compound, under pressure at a temperature between 80 DEG  C. and the decomposition temperature of the resin. Saturated resins specified are halogenated, carboxylated and halosulphonated polythenes, acrylic and alkacrylic ester polymers and interpolymers, chlorinated and chlorosulphonated polyisobutylene, ethylene - butyl methacrylate interpolymers, chlorinated and chlorosulphonated ethylenevinyl acetate interpolymers, reaction products of phosgene and hydrocarbon polymers, chlorinated acrylic resins, polymeric chloracrylates, chlorination and chlorosulphonation products of polymethylenes (hydrogenation products of carbon monoxide), and chloropolythene treated with ethandithiol dissolved in benzene.  Peroxy compounds specified are urea, benzoyl, lauroyl, acetyl, acetyl benzoyl, dicamphoryl, succinyl, phthalyl, diethyl and acetone peroxides, perbenzoic and peracetic acids, ethyl percaphorate, hydroxy alkyl hydroperoxide, tert.-butyl hydroperoxide and bis-hydroxyalkyl peroxides. Mercaptobenzothiazole, diphenyl guanidine, benzothiazyl disulphide, zinc and magnesium oxides, sulphur, charcoal, high boiling phenolic compounds, solvents such as ethanol and carbon tetrachloride, fillers and plasticisers may be added to the uncured resin.  The curing process may be used in making plywood, abrasives, laminated glass, filaments, shoe soles, bottle closures, electric insulation, battery separators and Venetian blinds.  Specifications 542,414, 593,929 and 593,930 are referred to.
Patent GB-525428-A (GB)
Title: Improvements in projectiles for firearms the barrel of which tapers from the breech to the mouth
IPC: F42B12/06
Filed: 1939-02-20
Abstract: 525,428. Projectiles. SOC. ITALIANA E. BREDA PER COSTRUZIONI MECCANICHE. Feb. 20, 1939, No. 5670. Convention date, Feb. 19, 1938. [Class 9 (i)] Deformable projectiles for discharge through barrels having tapering bores, have a hard-metal nose-portion 1 and a deformable bodyportion 2 of a malleable but not soft metal attached thereto, at least one cavity 5 being provided within the body portion to permit of the progressive drawing down of the portion 2 as the projectile passes through the gun. The form prior to discharge is shown by the left halves of the Figures and the form on leaving the barrel by the right halves thereof. The sleeve portion 4, Fig. la, is pressed down and rearwardly extended on to a central stem 9, whereas the projectile shown in Fig. 3a is hollow, the cavity 5 being in the form of a blister. One or more rearwardly inclined centring rings 6 may be provided. Specifications 18601/04. [Class 9], and 437,152 are referred to.
Patent GB-567983-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G21/06
Filed: 1943-04-08
Abstract: 567,983. Conveyers. C.-W. ENGINEERING CO., Ltd., and SEED, E. C. April 8, 1943, No. 5672. [Class 78 (i)] In conveyers of the type comprising an endless moving belt carried by a plurality of lower frame units detachably connected together in line and a plurality of upper frame units which are detachably carried by the lower units by joint members received by joint devices of the lower units, the connection is by pins 66, 68 carried by the upper units, one at each corner, and sockets 54 carried by one end of each lower unit and coupling pins 56 extending horizontally from the mating end of the adjacent lower unit. The lower units 12 are in the form of troughs which may be inverted supporting rollers 16 over which rides the lower traverse of the belt. One end of each trough carries on its upper surface two triangular webs, each terminating at the trough side in an upright 32 topped by a slotted shelf 36. The other end of each trough has a butt strap 26 from which project the pins 56, which are recessed along the greater part of their inner faces. In assembling, the pins 56 are first passed into the sockets 54, which are welded to the uprights 32, and the pins 66, 68 are then inserted through the slot in the shelf 36 and through vertical slots 60, 62 in the socket 54 to engage the recess in the pins 56. The spill plates 14 forming one side of the upper units are U-shaped and are slotted to take over the shelves 36 at their bottom corners. The tops of the uprights 32 support journals for the outer ends of the upper roller axles, the inner ends of which ride in inclined bearing plates so that the upper traverse of the belt forms a shallow vee. Specification 405,021 is referred to.
Patent GB-734224-A (GB)
Title: Improvements in electric wall brackets made of plastic
Inventor: SADLER ALFRED
IPC: F21V21/10
Filed: 1953-03-02
Abstract: 734,224. Brackets. BRITISH GENERAL MANUFACTURING CO. (1941), Ltd. Feb. 10, 1954 [March 2, 1953], No. 5768/53. Class 52 (5). A wall bracket for an electric lamp comprises two plastic mouldings shaped as open channels which fit together to form a tubular arm. As shown, the curved arm 1 is moulded in two semicircular halves 2, 3, the edges having engaging tongues and grooves and an external rib 8 on the part 3 camouflaging the junction. The parts are secured together by dowels and by a bolt and nut at one end which is formed with a threaded projection on which a lampholder may be screwed, the other end being formed as a base 10 having an external base ring 11 with projections 12 and held to a wall fixing plate 13 by a ring 14.
Patent GB-405124-A (GB)
Title: Wireless and like receiving systems
IPC: H03G3/26
Filed: 1933-02-25
Abstract: 405,124. Valve circuits for wireless reception. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Johnson, J. K. ; 61, Halls Lane, Rye, New York, U.S.A.) Feb. 25, 1933, Nos. 5804 and 5805. Convention dates, April 6, 1932. [Class 40 (v).] In a wireless or like receiver signals below a pre-determined level are suppressed by means as by an auxiliary suppressor valve 14, to remove a prohibitive bias from low frequency amplifier 13 under control of rectifier 12. The Figure shows an arrangement in which the direct current voltage developed across the load resistance 22 is wholly applied to the grid of the valve 14 through smoothing condenser 18 and resistance 17 and in part used for the control of the grid bias of preceding amplifying valves to regulate their gain. The audio-frequency sig nals are applied through condenser 31 to th potentiometer 32 and the amplifier 13. With no signal anode current of the valve 14 will produce voltage in resistances 28, 32 which with the voltage drop between points 53, 54 will bias valve 13 to cut-off. Signal voltage will bias valve 14 to cut-off and permit the operation of valve 13 with normal bias. Adjustment of the screen grid voltage of the valve 14 serves to adjust the signal cut-off level. Specification 398,882 is referred to.