baber/WOPTO huggingface dataset:
Patent GB-1411192-A (GB)
Title: Photodiode
IPC: H01L31/109
Filed: 1973-03-08
Abstract: 1411192 Cadmium selenide INTERNANATIONAL BUSINESS MACHINES CORP 8 March 1973 [8 May 1972] 11275/73 Heading C1A [Also in Division H1] A photodiode comprises an N-type layer of CdSe on a P-type Si substrate. Fig. 1 shows apparatus suitable for vapour-depositing the CdSe layer from separate resistively heated sources of Cd 10 and Se 24. Baffles 14, 16 associated with the boat 12 containing the Cd 10 prevent Cd particles from entering the chamber 2, which is evacuated to a pressure of 10<SP>-7</SP> to 10<SP>-8</SP> mm. of mercury. A rotatable shutter 20 regulates the evaporation of Cd on to the target, which consists of Si substrates 8 inserted in recesses in a holder 6 of boron nitride. The source temperatures are controlled such that the ratio of Se : Cd vapour fluxes at the Si substrates 8 is in the range 10-15 : 1, the substrates 8, from which any oxide film has been removed prior to insertion in the apparatus, being maintained at a temperature of about 250‹ C. during deposition.
Patent GB-1000960-A (GB)
Title: Process for preparing cyclododecatriene-(1,5,9)
IPC: C08F4/64
Filed: 1964-03-17
Abstract: Cyclododecatriene-1,5,9 is obtained by cyclopolymerization of butadiene in the presence of at least one dialkyl aluminium chloride and at least one compound of the formula Ti(NR2)n-Cl4-n in which R is alkyl or aryl and n is an integer from 1-4 in catalytic amounts.  The ratio of titanium to aluminium may be 1 : 1-100. The catalyst may be formed in an inert solvent or the butadiene reactant or cyclododecatriene product.  Reaction is effected at 0-150 DEG  C. and sufficient pressure to maintain the liquid phase.  Mixtures of trans, trans, trans and trans, trans, cis isomers are formed.ALSO:A catalyst for the conversion of butadiene to cyclododecatriene comprises a mixture of a dialkyl aluminium chloride and a compound of the formula Ti(NR2)nCl4-n in which R is alkyl or aryl and n is an integer of 1-4. The ratio of titanium to aluminium may be 1 : 1-100.  The catalyst components may be premixed in an inert hydrocarbon or halogenated hydrocarbon solvent.
Patent GB-473664-A (GB)
Title: Improvements in or relating to means for mechanically closing lined cartons
IPC: B65B7/18
Filed: 1936-04-20
Abstract: 473,664. Packeting-machines. NAYLOR. W. H., and DAY & SONS, Ltd., J. April 20, 1936, No. 11294. [Class 94 (i)] The mouth of a carton lining and the closure flaps of the carton are closed by a series of operations which result in a bellows formation of the lining mouth and its subsequent folding upon one of the flaps before this is turned over finally to lock the lining between the flaps. As shown, a filled carton A, Fig. 1, of oblong cross-section, slit at the corners to provide four flaps B, C, D, E and containing a liner F closed at the corners and longer than the carton, is advanced to a closing position at which claws G<2>, G<3> enter between the lining and the flaps B, C, and bend the flaps down horizontally outwards. A vertically reciprocating bracket H, Fig. 4, descends and engages the sides of the liner by means of folders I, J, at the same time bending out the flaps D, E. Simultaneously, pivoted plates m<1>, m<2> pass into the liner and are opened out into parallelism, while side plates K, L, Fig. 6, move inwards to form bellows folds about the plates m<1>, m<2>. The folders I, J approach each other to flatten the whole top of the liner, the plates m<1>, m<2> and K, L remaining in position as long as possible to control the bellows folds. The flattened portion f<1> of the liner is folded flat upon the flap E as shown in Fig. 10 by a pivoted folder, horizontal plates having been moved inwards to define the crease. The flaps B, C are turned over to cover partially the part f<1> as shown in Fig. 12, and the flaps D, E turned upon them to interlock the part f<1> between the flaps. Either of the flaps E, D may be the last to be turned over. Adhesive may be applied to any or all of the flaps at any suitable stage. Some of the folding movements may be effected by means of fixed cam parts during the movement of the carton from one station to another.
Patent GB-1042072-A (GB)
Title: Electromagnetic relays
Inventor: BERNIER RAYMOND
IPC: H01H50/56
Filed: 1964-03-17
Abstract: 1,042,072. Electromagnetic relays. SOC. CIVILE D'ETUDES DE PROTOTYPES DE TECHNIQUE ELECTRONIQUE SOPROTEKEL. March 17, 1964, No. 11295/64. Heading H2B. Contact springs 10 are inserted into slots 16a, 16b on opposite sides of a resilient insulating block 14 and are clamped in position by the compression of the block produced by tightening a mounting bolt 17 which acts through a metal plate 18 on the block. The slotted sides of the block, the metal plate, and the contact springs have V-shaped notches which allow the contact springs to be accurately located before clamping in an apparatus (Figs. 4 and 5, not shown). The base and upper surface of the block are slotted longitudinally at 20, 21 so that the compression of the block is concentrated at the springs. The base has groove 30 which houses the pivot-pin 31 of an armature 4 (Fig. 1, not shown). The terminal end of the block has extensions 31 which engage in slots in a base plate 32 of the relay.
Patent GB-859450-A (GB)
Title: Improvements relating to thermionic valves
Inventor: BAWDEKAR VAMAN SHANTARAM
IPC: H01J19/42
Filed: 1958-04-10
Abstract: 859,450. Thermionic cathode constructions. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 10, 1958, No. 11427/58. Class 39(1). A tubular cathode sleeve 1 which passes through an aperture in a supporting mica spacer 3 has an annular projection 9 which is held against the spacer by a wire 10 welded to the sleeve and extending into engagement with an insulator 15 positioned within another aperture in the spacer. In Fig. 3 the projection is held firmly against the spacer by means of cantilever action by the wire 10 and the reaction of insulator 15 against the anode 8 In Fig. 2 the wire 10 is welded to the sleeve at 11, and one free end is bent down to engage against the spacer 3. The other end has one branch engaging in the insulator 15 and another branch extending upwards to form a cathode connection 12 passing through the tube envelope. The cathod is described as embodied in a booster diode, Fig. 1 (not shown).
Patent GB-888601-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1957-04-09
Abstract: 888,601. Refrigerating. HARLEY, J. July 3, 1958 [April 9, 1957], No. 11467/57. Class 29 In a continuous cycle absorbtion system using an inert gas, the rectifier 4, evaporator 7, and absorber 15 contain a helical wire 23, 24 or 25 in contact with the pipe walls. Weak solution is precooled by cold gases in heat exchanger 22. The gas heat exchanger comprises a casing 10 traversed by inert gas flowing to the evaporator, a hollow, annular duct 9 traversed by mixed gases leaving the evaporator and a central liquid refrigerant feed pipe 8. The evaporator may be disposed in 3 planes as shown in Fig. 2, the bottom coil carrying a fin 26, and a partition may be disposed between the central and bottom coils. The rectifier has fins 5 and similar fins may be mounted on the absorber and on the weak solution pipe 18 between the liquid heat exchanger 19 and heat exchanger 22.
Patent GB-317503-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: H03F1/36
Filed: 1928-04-18
Abstract: 317,503. Igranic Electric Co., Ltd., and Charman, F. J. H. April 18, 1928. Thermionic amplifiers.-In a highfrequency amplifier a resistance is provided to feed back voltage to neutralize the voltage fed back due to conductive coupling other than that due to the common impedance of the battery. The Figure shows an amplifier the capacitative coupling of which is neutralized by the circuit 6, 7, 8, while the conductive coupling is neutralized by a resistance 10 in series with a blocking condenser 11. In a modification the resistance 10 is arranged in parallel to the condenser 8.
Patent GB-822764-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: DERBYSHIRE ROBERT ANTHONY
IPC: H01R12/72
Filed: 1957-04-09
Abstract: 822,764. Two-part couplings. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 23, 1958 [April 9, 1957], No. 11476/57. Class 38(1). A moulded socket connector for a printed circuit card 2 has double-wire spring contacts 3 moulded therein and separated by fingers 5 which form integral parts of the plastic moulding 1. The cord is held and supported in the connector by end guides 7 and 8 and the connector is provided with a mounting rib 11 slotted at 12 by which it is secured to a slotted mounting- plate 4. Printed terminals may replace the contact studs 10. The spring contacts are located off-centre with respect to the fixing lugs 16 to facilitate connection of terminals 6 of corresponding connectors in alternate rows when connectors in adjacent rows are mounted back to back.
Patent GB-335154-A (GB)
Title: Improvements in kilns or ovens for baking pottery and the like
IPC: F27B9/02
Filed: 1929-04-15
Abstract: 335,154. d'Arleux, R. M. and Violette, E. April 15, 1929. Addition to 254,023. Tunnel kilns. - In the kiln of the parent Specification additional sand seals for preventing escape of gases to the underside of the trucks are provided, the trucks are provided, and the longitudinal profile of the tunnel and the arrangements for utilizing the air from the cooling zone are also modified. In addition to the sand seals 42 previously provided sand is fed on to the floors of the trucks and is progressively swept off by projecting bricks 52, which are gradually brought closer to the trucks as the latter proceed through the kiln. The sand so swept off falls on to ledges 53, where a further seal is made by the sharp corners 54, and the sand finally passes to the seals 42. The tunnel is formed with an initial horizontal stretch 57, and upward slope 58 to an apex S at the point where the air bye-passed from the cooling-zone through the conduit 39 re-enters the kiln, and a gentle downward slope to a point P beyond the firing-zone L, followed by a steeper slope 60. The firing-zone is divided into two or more sections by one or more depressions B<1> of the roof, and the first section L<1> has a larger number of burners 19 than the remaining sections. At the sides of the bye-pass conduit 39 are arranged further conduits 33, 33<1>, through which a portion of the air from the cooling-zone and a portion of the gases from the firing-zone can be passed to a chimney 30. In these conduits are arranged pipes 34, in which the air and gas, or a combustible mixture for supply to the burners is heated. The burners 19 are arranged to deliver transversely into the tunnel.
Patent GB-610756-A (GB)
Title: An improved spinning bait for fishing purposes
IPC: A01K85/12
Filed: 1946-04-16
Abstract: 610,756. Fishing. ROGERS, G. F. April 16, 1946, No. 11599. [Class 48] [Also in Group XXII] A spinning bait has a fin plate a formed by a pressing and slitting operation so that integral inwardly facing channels a<2>, a<3> are presented to constitute a bearing wherein a rod b is accomodated with its axis coincident with the plane of the plate.
Patent GB-332204-A (GB)
Title: Process for the manufacture of tanning agents
IPC: C14C3/10
Filed: 1929-04-15
Abstract: 332,204. Carpmael, A.., (I. G. Farbenindustrie Akt.-Ges.). April 15, 1929. Tanning with special chemicals. - The dried chlorinated product of degraded lignite &c. obtained by the process of Specifications 284,670, [Class 2 (iii), Dyes &c.], or 323,781, is extracted with an organic solvent, and the resulting solution is evaporated or precipitated by the addition of the salt of a weak acid, a base, or an organic precipitant. Suitable organic solvents are lowboiling carbonyl compounds such as acetone, aliphatic alcohols such as methanol and ethanol, and also lower fatty acid esters. A small quantity of water is preferably present. Benzene is mentioned as an organic precipitant. In an example, a solution of the dried starting material in acetone containing 3 per cent of water is filtered and evaporated to dryness using slightly reduced pressure: the residue is then heated for 10 hours in an air oven at 55‹ C. Other examples are given in which a solution of the starting material in crude wood spirit containing 3 per cent of water is evaporated and the product dried, and in which a similar solution is treated with gaseous ammonia. The precipitate obtained in the latter case is dried firstly in vacuo and then in the air oven.
Patent GB-330061-A (GB)
Title: An improved machine for making pipes of clay and the like
IPC: B28B21/52
Filed: 1929-04-16
Abstract: 330,061. Sabine Bros., Ltd., and Sabine, A. E. April 16, 1929. Extrusion machines. - A machine for making pipes of clay &c. has a feed worm b below which a boss c is provided carrying three or more knives or blades a. The boss is secured to the worm shaft. A flange b<1> is provided on the outer periphery of the feed worm, preferably on the lower side.
Patent GB-580802-A (GB)
Title: Improvements in and relating to the nitration of hexamine and hexamine dinitrate
Filed: 1940-07-15
Abstract: In the production of cyclotrimethylenetrinitramine by the nitration of hexamethylenetetramine, hydrogen peroxide or other peroxide is added to the reaction mixture before or during dilution, so as to stabilize the residual solution and enable the formaldehyde and nitric acid to be recovered safely by distillation.  Any organic or inorganic peroxide which is soluble in the residual acid may be employed.
Patent GB-651223-A (GB)
Title: Improvements in and relating to magneto-electric machines
IPC: H02K21/38
Filed: 1948-04-29
Abstract: 651,223. Ignition magnetos. BRITISH THOMSON-HOUSTON CO., Ltd. April 29, 1948, No. 11794. Convention date, April 29, 1947. [Class 35] In an ignition magneto which is designed to operate without a contact breaker the stator comprises four polepieces 5, 6, 7, 8, of which opposite polepieces have the same tooth position with respect to the rotor teeth and which are alternately joined by magnets 14, 15 and cores 12, 13 carrying the ignition coils 10, 11. Each stator core member has several teeth which are narrower than the rotor teeth. Specification 651,219 is referred to.
Patent GB-1015909-A (GB)
Title: Method of and product for packaging electronic devices
IPC: H01L23/057
Filed: 1964-03-20
Abstract: 1,015,909. Etching. GENERAL MICRO-ELECTRONICS Inc. March 20, 1964 [Dec. 30, 1963], No. 11797/64. Heading B6J. [Also in Division H1] Fig. 1. Station A. Metal strip 20, e.g. " Kovar " (Registered Trade Mark), is drawn from spool 21 and washed in tank 44. Station B. Strip 20 is coated with photo-sensitive resist material in tank 50 and exposed to ultra-violet light from a source 23 through apertures in an endless patterned mask 22 driven in synchronism with strip 20. The resist is developed in tank 55, rinsed or further developed in tank 66, then the strip is passed through an etchant (HCl, or iron chloride, or a mixture thereof) in tank 70. The etched strip (Fig. 2, not shown), which is next rinsed in tank 75, now comprises marginal perforations 26, 27 and sets 30, 31, 32 &c. of lead conductors. Station C. Strip 20 is sandwiched between layers 33, 34 of borosilicate glass, which are narrower than strip 20 and centrally located thereon, and furnaced at 35 to embed the strip in the glass, then annealed and cooled at 36. Station D. Patterned resist tape 90 is applied to glass layer 33, so that, when the composite strip passes through an etchant, e.g. a 49% solution of HF, in tank 96, apertures 40 (Fig. 9) are etched in layers 33 to expose the inner ends of the leads. The composite strip is scored for division into units (each comprising a plurality of housings) by scoring and notching devices 100, 101, or by etching, and is rinsed at 110. Station E. The leads are gold-plated in tank 120. The strip is divided along its score lines into units by device 121. A semi-conductor device 42 is placed into each aperture 40 with its solder dots in contact with the leads, heat being applied to cause the solder to adhere to the leads. A metal strip, glazed on one side, is heatsealed over each aperture 40. Finally each unit is divided into its individual housings.
Patent GB-551953-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/224
Filed: 1941-09-15
Abstract: 551,953. Condensers. STANDARD TELEPHONES & CABLES, Ltd., LENO, J. A., and STRAY, W. J. Sept. 15, 1941, No. 11818. [Class 37] A number of rolled condenser units 3 are mounted end-to-end, preferably on an insulating support 5 in an oil &c. filled casing 1, which has each end sealed both by an external cap 2 and an endwise abutting disc 7. Rubber gaskets 9, 10, 11 assist in the sealing. The series electrical connection between the units may be effected by soldered tags 4. Screwed rods at the ends of the central support serve for fixing the end closures and for connecting external leads.
Patent GB-657987-A (GB)
Title: Bread cutting machine
IPC: B26D7/06
Filed: 1949-05-03
Abstract: 657,987. Slicing-machines. MELPOLDER, J. May 3,1949, No. 11827. [Class 28(ii)] A bread slicing machine has a vertical motor-driven disc knife 30 mounted tangentially to the curved transverse edge 55 of a T-shaped support 48 manually oscillated by a handle 68 to move arcuately in a horizontal plane about a fixed vertical bolt 46 in a pedestal 44, the whole being mounted on a base plate 20. The bread rests on a flat support 58 which has a curved front edge and has lower guide rails 62 at the edges sliding in the support 48, which has side wings 54, one of which is recessed at 64 to receive a pivot 66 on a guide rail 62. A shaft 79 is mounted in a spindle 68 forming the operating handle on the other side wing 54 and has a pinion 72 at its lower end engaging a gear 76 rotating on a pin 78 en the support 48. A lever 80 fixed to the gear 76 is pivoted at its other end 82 to a link 84 connected to the pivot 66 on the support 58, which is thus moved by operation of a handle 74 on top of the shaft 70 to advance the support 58 and obtain a desired slice thickness. The bread is held between side clamps 92 which are laterally adjusted by bolts 86 on lower flanges 90 thereof engaging slots 88 in the wings 54. A graduated slice measure 96 is secured to an upper flange 94 of a clamp 92. A slotted flange of a bracket 100 is adjustably secured by bolts 102 to the bread support 58 above the pivot 66, and a gauge 104 is bolted at 106 to a horizontal slot in the vertical flange of the bracket 100. The gauge 104 has a flat base 108 and a side flange 110 secured to a vertical end plate 112 against which the end of the loaf rests. A lateral finger 118 at the top of the plate 112 co-acts with the measure 96 on the clamp 92 to indicate the slice thickness. A knife guard 32 has shoulders 42 and an inclined flat part 32 on which the slices are delivered.
Patent GB-1070085-A (GB)
Title: Fluid flow control valves
IPC: F16K3/36
Filed: 1965-03-19
Abstract: 1,070,085. Valves. A.S.VOLPIN. March 19, 1965 [April 27, 1964], No. 11841/65. Heading F2V. The annular spring-loaded seats 24 of a gate valve embody grooves 28 that are each supplied with sealant from the upstream one of two reservoirs 60 when the valve is closed. The sealant supports a piston 61 open to the associated flow passage 18 and a non-return valve 70 is disposed upstream of the grooves 28. The latter are supplied with sealant via recesses 75 in the opposite faces of the gate, which recesses are connected by a passage through the gate and its operating stem connection that is lined with a flexible sleeve 77. The reservoirs may be filled through external connections. The valves casing 11 is made of welded standard tubing 10, 17 and is provided with a manually-openable vent-valve 82. The gate may be solid or be in two parts, as shown, with a bolt 38 therebetween which spaces the parts and permits of relative angular movement therebetween. The stem is threaded for operating purposes and is sealed by a stuffing box 42.
Patent GB-974580-A (GB)
Title: Pallet magazine for load-handling pallets
IPC: B65G60/00
Filed: 1963-03-26
Abstract: 974,580. Dispensing load handling pallets. HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. March 26, 1963 [March 29, 1962], No. 11846/63. Heading B8S. Pallets 1, 2, 3 in a stack are dispensed singly from below by means of an apparatus including supports which, while the lowermost pallet is being dispensed, hold the remainder of the stack clear of it. The same apparatus may be used to assemble the stack. The invention is characterized by the feature that the supports, which are arranged along two opposite sides of the stack, are each movable in two mutually perpendicular directions. Each support 5 consists of a rod which is insertable into the space beneath the load board of the pallet and is horizontally movable by means of an hydraulic thruster 25. The set of supports on each side of the pallet stack is carried by a frame 8 vertically movable by a cable 10 or 11. To dispense the lowest pallet 1 the supports are moved to engage and slightly lift the next pallet 2 and the pallet 1 discharged by a horizontal conveyer which may be a rollerway but, in the form shown, comprises pushers 30 attached to chains driven by sprockets 32.
Patent GB-437272-A (GB)
Title: Improvements in tobacco cutting machines
IPC: A24B7/10
Filed: 1934-04-19
Abstract: 437,272. Cutting tobacco. LEGG, Ltd., R., and SCHREIBER, P. Q. R., Eagle Wharf Road, Hoxton, London. April 19, 1934, No. 11851. [Class 5 (i)] [See also Group XXIII] A tobacco-cutting machine comprises a mouthpiece R towards which tobacco is urged by conveyers C, H and compression rollers G, J1, J2, J3, a revolving cutter having a knife or knives with spiral cutting edge 5 which is, as the cutter revolves, advanced across the mouthpiece R, a means for sharpening the knife during rotation and means for adjusting the cutter in relation to the mouthpiece to compensate for the wear of the knife. The knife may consist of a strip, in the form of a spiral, held between two disc-shaped plates 7, 8, or of two strips each of spiral shape. Each blade is formed with such minimum and maximum radius as will give a " throw ' slightly greater than the normal depth of the mouthpiece R, the maximum radius being continued over a definite angle to allow for the result of continued sharpening. The cutter is mounted on a shaft 9 mounted in bearings in a housing 17, movable longitudinally by means of a screw 20 continuously driven by the main driving means. At a point diametrically opposite to the mouthpiece a knife grinding wheel 24 of cup-form is mounted on a shaft 25 arranged so as to be slidable to take up wear of grinder. The knife edge passes continuously over the sharpening wheel 24, and the grinding wheel is dressed by means of a diamond 27 on an arm 30 rotated by a shaft 28. The grinding wheel is advanced automatically by a screw feed operated by a ratchet wheel driven from a cam on the end of shaft 28. A suction fan 49 withdraws particles of steel and grinding material into an appropriate dust collector. Provision is made for revolving the knife independent of the feed. The mouthpiece R has a fixed lower edge 1, the upper edge 2 being movable and attached to hinged side frames carrying also the pressure rollers J1, J2, J3.