baber/WOPTO huggingface dataset:
Patent GB-1380207-A (GB)
Title: Method and apparatus for opening letter envelopes
IPC: B43M7/00
Filed: 1973-07-18
Abstract: 1380207 Cutting-open envelopes KENEMATIC CO Inc 18 July 1973 [27 July 1972] 34194/73 Heading B4B [Also in Divisions B3 and B8] Envelope opening apparatus comprises a feed hopper 12 adapted to receive a stack of unopened envelopes which are individually transported by a conveyer means 16 past a cutter 36, the envelope being urged firmly against a guide 32, 34 during transport to ensure substantially complete cutting of the envelope. The conveyer comprises a belt 22 which passes over a vacuum manifold 24 and is driven by a motor 60; the belt is formed with holes 26 so that suction may be applied via the manifold to the bottom envelope of the stack so as to remove it therefrom and maintain it on the belt as the envelope is carried past the cutter 26. A raised frictional member 27 on the conveyer is provided which serves to joggle the pack as the lowermost envelope is removed. The conveyer is angled, Fig. 4 (not shown), relative to the guide 32, 34, so that the envelope is pressed firmly thereagainst during cutting. The suction is applied to the manifold 24 via conduits 84, 86 and to a housing 88, Fig. 2 enclosing the cutter thereby removing paper waste; suction is also applied to a wall of an output hopper 14 in order to correctly position a carton 98 for the opened envelopes. In a modification, a vacuum pump (128), Fig. 10 (not shown), is adapted via a conduit (130), to apply a high suction to a portion of the manifold 24 immediately below the supply hopper. The pump also communicates with a chamber (131) in which a bleed valve (135) is located; by suitably adjusting the valve a lower suction may be applied to the remaining portion of the manifold 24. A second low-vacuum pump (145) is provided for applying suction to the cutter housing, the waste paper being drawn into a bag (144), for disposal. In order to open non-standard size envelopes, a second cutter 40, Fig. 2, is provided, the cutter projecting into a guide groove (42) Fig. 1 (not shown), so that the oversize envelope may be manually moved past the cutter 40.
Patent GB-1356759-A (GB)
Title: Process for the preparation of n -beta-chloro-ethyl-dinitrotri fluoromethyl-anilines
IPC: C07C211/52
Filed: 1972-07-21
Abstract: 1356759 N - (# - chloroethyl) - dinitrotrifluoromethylanilines FARBWERKE HOECHST AG 21 July 1972 [23 July 1971] 34214/72 Heading C2C A process for the preparation of N-(#-chloroethyl) - dinitrotrifluoromethylanilines of Formula I  in which Rx and Ry are independently H, alkoxy, alkyl, alkenyl, alkynyl, cyanoalkyl, hydroxyalkyl, N-formylaminoalkyl, carboxyalkyl, carbalkoxyalkenyl or alkoxyalkyl groups each having from 1 to 8 carbon atoms or an aralkyl group having from 7 to 18 carbon atoms optionally substituted on the ring by one or more substituents selected from halogen, nitro, amino, hydroxy, C 1-4  alkyl or haloalkyl, and R represents H or Cl; provided that when the amino group is ortho to the CF 3  group R is H, comprises reacting a compound of Formula II wherein n is 1 or 2 and Cl is o- and/or pto the CF 3  group with a compound of Formula III Rx and Ry being as defined above at 20-120‹ C.
Patent GB-1483466-A (GB)
Title: Catalytic hydrocracking process and catalyst for use in the process
IPC: B01J23/88
Filed: 1974-08-02
Abstract: 1483466 Hydrocracking catalyst W R GRACE & CO 2 Aug 1974 [3 Aug 1973] 34282/74 Heading B1E [Also in Division C5] A hydrocracking catalyst comprises (a) alumina, (b) an oxide or sulphide of Cr, Mo or W and an oxide or sulphide of Fe, Ni or Co another and (c) an amorphous inorganic gel having the molar formula wherein M is at least in part Ca, Mg or Group VIII metal, optionally together with ammonium or hydrogen, and may include residual potassium or potassium and sodium. The catalyst may be formed by blending the alumina and the gel, shaping, impregnating with salts of the active metals and calcining. The Examples describe compositions containing molybdenum, nickel and calcium or magnesium.
Patent GB-808032-A (GB)
Title: Improvements in or relating to ordnance
IPC: F41A21/18
Filed: 1956-11-09
Abstract: 808,032. Ordnance. MANUFACTURE DE MACHINES DU HAUT-RHIN S.A. Nov. 9, 1956 [Nov. 10, 1955 and March 9, 1956], No. 34284/56. Classes 9(1) and 92 The inner tube of a gun is provided with conventional twisted grooves 18, Fig. 2, and with supplemental grooves 20 extending parallel to the axis of the tube or with a slight pitch in a direction opposed to the twist of the conventional grooves. If the grooves 20 are given a slight pitch, this may be in the order of 1 degree while the pitch of the conventional grooves may vary from 7-15 degrees. The depth of the grooves 20 is equal to or slightly smaller than that of the grooves 18. The gun is used with a missile made of inner and outer sections 1, 11, Fig. 1, the outer section 11 having driving bands 13, 14 co-operating with the grooves 18 to rotate the missile during flight while the inner section is revolubly carried in the outer section 11 by means of needle bearings 12 and has guiding members 5 slidably engaging the supplemental grooves 20. The inner section 1 encloses the shaped charge 2 with its cover 3 and is fitted with a cap 4 carrying blades or fins 5 and an electrically ignitable fuze 6 connected with the igniting system 8 which controls a relay 9 so as to produce deflagration of the charge 2. A spring 16 is interposed between the sections and urges forwardly the inner section 1 by means of a piston 17. The missile may f6rm part of a cartridge. The grooves 20 intersect the lands 19 at different points but the arrangement of the driving bands 13, 14 is such that any forward leaking of the propelling gases at the moment of firing is prevented. The relative rotary motion of the inner and outer sections of the missile may be used for releasing the safety system associated with the ignition means at a predetermined point of the path of the missile or where the inner section 1 is stabilized by means of fins it can be used to urge them outwardly in a uniform manner when the missile passes out of the gun.
Patent GB-426575-A (GB)
Title: A new or improved device for silencing the passage of a fluid through an orifice or conduit
IPC: F02M35/12
Filed: 1933-12-07
Abstract: 426,575. Exhaust and like silencers. BLUNDELL, A., 361, Walsgrave Road, Coventry. Dec. 7, 1933, Nos. 34392/33 and 15732/34. [Class 7 (ii)] [See also Group XXI] Silencers for the air or gas intakes or the exhaust of internal-combustion engines, also applicable to intakes and outlets of air and gas compressors and to firearms, are composed of or include one or more tubular elements formed by spirally winding a metal strip of a cross section such that the edges of adjacent convolutions interlock with, but are free to move axially relatively to, one another. The strip is preferablyof Z- or S-section so as to form a continuous spiral passage a<5>, and may be perforated as at a<4>. The coiled elements may be combined with a perforated tube placed internally or externally, with or without a winding of asbestos cord or tape, or a layer of wire mesh ; or there may be two concentric coiled strips with asbestos cord incorporated between the convolutions. Fig. 10 shows a carburetter intake composed of a series of coiled elements A open to the air at their free ends, their other ends being connected to a chamber d with a socket d<1> for connection to the carburetter. The elements A may be held together by a plate e and surrounded by a casing of wire gauze f. For silencing exhaust gases, an element may form the tail pipe of an ordinary expansion chamber, or inlet and outlet elements A, A<1>, Fig. 13, may enter from opposite ends of an expansion chamber g so as to give the gases a tortuous path before entering the outlet chamber g<1>. Or the expansion chamber to which the elements are connected may itself be formed of coiled strip in the same way as the elements. One or more coiled elements may also be provided between the exhaust manifold and the exhaust pipe, in addition to the usual silencer at the tail end.
Patent GB-1327015-A (GB)
Title: Air velocity measuring system and method for its calibration
IPC: G01F1/46
Filed: 1971-07-22
Abstract: 1327015 Measuring fluid-flow ILLINOIS TESTING LABORATORIES Inc 22 July 1971 [24 July 1970] 34448/71 Heading G1R An air velocity measuring system arranged to match a pitot standard comprises a removable pitot tube probe tip 15 for insertion orthogonally into an air-stream and is provided with a smooth tapered bore constituting a passageway 26 passing through the tip and an air shunting gate 36 perpendicular and near the mid-point of the passageway 26, the gate having longitudinal side walls 45, 46 depending from the passageway 26 transverse to its axis and spaced apart by a distance less than the axial length of the passageway. A pair of air channels 50, 52 extend from the passageway of the bore one on each side of the gate 36 and a variable height baffle 34 is mounted in the probe tip and projectable into the passageway for regulating the amount of air flowing through the passageway. In order to callibrate the probe, it and a pitot static-tube standard are independently connected to the same duct to monitor the velocity pressure of the air-stream having a substantially constant velocity the pitot static-tube standard measures the differential pressure which is equivalent to the velocity pressure of the airstream. The variable height baffle 34 is adjusted to project into the passageway until the output from the pitot probe equals that of the pitot statictube standard.
Patent GB-482623-A (GB)
Title: Improvements in cooking ranges or stoves
IPC: F24B13/02
Filed: 1936-12-16
Abstract: 482,623. Cooking-ranges. URE, G. A. Dec. 16, 1936, No. 34516. [Class 126] In a cooking-range in which an oven 4 is located beside the firebox 2 and shielded therefrom by a vertical partition 3, renewable metallic protector plates 7 are secured to the fire side of the partition 3 to prevent destructive overheating thereof. The plates 7 are formed with shanks 8 which project through holes in the partition and are apertured for the reception of cotter pins 10, the latter engaging inclined abutments 13 so that resilient washers 12 are compressed between the plates 7 and the partition.
Patent GB-655165-A (GB)
Title: Improvements in or relating to the production of compact sintered bodies by pressingand sintering metal powders
IPC: B22F3/12
Filed: 1947-12-29
Abstract: 655,165. Powder metallurgy. PRIMAVESI, D. Dec. 29, 1947, No. 34524. Convention date, May 10, 1946. [Class 83 (iv)] In a powder metallurgical process, compacting of the metal powder is facilitated by mixing therewith oxides or other metallic compounds in powder form, which compounds are sub- .sequently reduced to the metallic state during the sintering operation.
Patent GB-1274132-A (GB)
Title: Puffed instant coffee spheres
Inventor: MENZIES JAMES HARLEY
IPC: A23F5/38
Filed: 1970-07-16
Abstract: 1,274,132. Instant coffee. PROCTER & GAMBLE CO. 16 July, 1970 [17 July, 1969], No. 34540/70. Heading A2B. A moist instant coffee having a moisture content of 6-15% is heated to 150-210F and worked to give a flowable substantially uniform dough, which is, either before or after cooling, reduced to discrete particles having a size between 6 and 20 mesh (U.S. Standard Screen), which particles are heated to 100-210 F at an absolute pressure of not more than 10"Hg, whereby the moisture is driven off and the particles are puffed. The preferred product is in the form of multidimensionally puffed particles having a porous centre and a crust-like surface, the particles having a size of 6-16 mesh and a density of 0.25-0.35 gm. cm<SP>-3</SP>. Such particles may be granulated, for example in an impact mill or hammer crusher, to give fragments having curved surfaces, a particle size of 8-20 mesh and a density of 0.25-0.35 gm. cm<SP>-3</SP>.
Patent GB-1388530-A (GB)
Title: Melting and refining glass
IPC: C03B5/26
Filed: 1973-07-19
Abstract: 1388530 Melting and refining glass CORNING GLASS WORKS 19 July 1973 [20 July 1972] 34570/73 Heading C1M A furnace as shown in Figs. 1 and 2 for melting and refining glass, including a tank, batch feeder means for supplying batch to an upper part of said tank, and a bottom provided with outlet means 40 for said molten and refined glass disposed at the lower end of said tank, is characterized by the outlet means being in the form of a duct 42 in contact with a portion of at least the upper surface 48 of the tank bottom 24 extending from the vicinity of the geometrical centre 64 of the bottom to the outer surface of the side of the tank 12 not below the lower surface of the tank bottom and having an inlet 44 in the vicinity of said geometrical centre and an exit 46 at the side outer surface. The duct may be made of refractory material, e.g. abutting refractory blocks. In a preferred embodiment, (Fig. 5), conduit 42a is made up of a plurality of abutting and formed refractory blocks 58 that actually constitute a part of tank bottom wall 24. Conduit 42a is lined with a metal duct 62, preferably of platinum, and its inlet 44a is not directly at the centre of the tank bottom wall. Duct 42a is also at an angle with respect to surfaces 48 and 52. In the vicinity of the geometrical centre there is located a drain 54. Alternatively, the duct may be formed solely of metal.
Patent GB-1013548-A (GB)
Title: Artificial teeth
IPC: A61C13/00
Filed: 1962-09-10
Abstract: 1,013,548. Artificial teeth. DENTSPLY (AUSTRALIA) PROPRIETARY Ltd. Sept. 10, 1962 [Oct. 4, 1961], No. 34596/62. Heading A5R. An artificial tooth is formed with an area, visible from the front, which simulates the pearliness of natural teeth and comprises a partly reflective layer behind a translucent veneer. In one method of producing such a tooth the enamel layer 10 is first formed in a mould and an area 14 is applied to it by brushing or spraying, which comprises "pearl" pigment and may be made from comminuted fish scales or from flat-plate-like crystals such as are obtained from the lead salts of fatty acids. Thereafter the dentine portion 16 of the tooth is formed in the mould. Preferably the inner surface of the enamel layer is made irregular so that the inserted layer gives a more natural appearance in reflected light.
Patent GB-487330-A (GB)
Title: Improvements relating to paper and like bags and like containers
IPC: B65D33/24
Filed: 1936-12-17
Abstract: 487,330. Paper &c. bags &c. LOW TEMPERATURE CARBONISATION, Ltd., and STEPHENS, J. H. Dec. 17, 1936, No. 34704. [Classes 94 (ii) and 133] In paper &c. bags &c. of the kind described in Specification 445,102, at least one of the reinforced walls b of the bag is provided with a closure flap b<1>, preferably extending the width of the reinforcement, adapted to be folded over the opposing wall c and to extend no further than the upper edge of the handle slot c<1>, being maintained in position by a seating flap d threaded through the handle slots c<1>, e, then over the folded flap b<1> and finally secured upon itself by latex &c. In a modification, the closure flap b<1> is replaced by more than one flap, these flaps being arranged in staggered fashion. The sealing flap d may consist of a strip, separate from the bag.
Patent GB-446303-A (GB)
Title: Improvements in or relating to toothbrushes
IPC: A46B9/04
Filed: 1934-12-03
Abstract: 446,303. Toothbrushes. ARNDT, W., and EISENBERG, K. B., 6, Duke Street, London. Dec. 3, 1934, No. 34752. [Class 19] A toothbrush has the bristles 3, Fig. 3, set in a stock 2 of substantially conical, pear shaped or similar cross-section to facilitate drainage and provided with a coat of one or more oligodynamically active metals such as silver, &c., for sterilizing purposes. Similar metals comprise chromium, nickel, cobalt, rhodium, or copper, or alloys thereof. If desired, the bristles themselves may be made of silver or colloidal silver may be incorporated therein. When the bristles are glued in, colloidal silver &c. may be added to the glue. The bristles are preferably arranged in a single row, Fig. 3 along the apex of the stock which may be serpentine in plan, Fig. 1, zigzag or the like or even annular. The stock may be of artificial resin and may have monograms, numerals, names or the like impressed thereon.
Patent GB-1121911-A (GB)
Title: Tedder
Filed: 1965-08-13
Abstract: A hay-tedder comprises a pair of endless-chain haymaking units juxtaposed on a frame transverse to the line of travel, each unit consisting of a pair of co-axial main rotating members connected by endless tine-carrying chains to secondary rotating members of reduced diameter.  Each unit is mounted on a castor-wheel lying within the sweep of the tines, the swivel-axle of the castor extending upwardly through the main rotating members, and being vertically adjustable by a screw.  Each unit can be adjusted about the swivel-axle through 90 degrees.  When the units are aligned, they overlap and the tines scatter the hay rearwardly (Fig. 5, not shown).  When the units are parallel there is a gap between them into which the hay is fed to form a windrow (Fig. 6, not shown).  The device is mounted on tractor hitch-links and the units can be driven in either direction.
Patent GB-416315-A (GB)
Title: Improvements in and relating to corner plates, branch plates and cross plates for tongued steel walls
IPC: E02D5/08
Filed: 1932-12-08
Abstract: 416,315. Sheet piles. MEISER, J., 12, Goebenstrasse, Dortmund, Germany. Dec. 8, 1932, No. 34831. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 10, 1933]. [Class 68 (ii).] Sheet piles are connected to form " branch plates " and " cross connections " by " specially-shaped pieces with groove connections. Figs. 3 and 4 show examples. The " branch plates " are connected to the piles by welding, riveting; clamps or otherwise. A H- section piece may be interposed between the " branch plate " and the grooved parts.
Patent GB-1014011-A (GB)
Title: Garment bag roll perforating and sealing machine and method
IPC: B29C65/18
Filed: 1962-09-12
Abstract: 1,014,011. Garment bags. NATIONAL DISTILLERS & CHEMICAL CORPORATION. Sept. 12, 1962 [Sept. 20, 1961], No. 34852/62. Heading B8K. [Also in Divisions B5 and F2] Garment bags 10 (Fig. 8) can be separated from a tube 12 at perforations 20 and are welded at 22 to leave an aperture 24 for the hook of a garment hanger. The bags are produced from gussetted tube as described in Division B5.
Patent GB-990983-A (GB)
Title: Method of manufacturing a transistor for high performance at very high frequencies
IPC: H01L29/00
Filed: 1961-09-28
Abstract: 990,983. Transistors. COMPAGNIE FBANCAISE THOMSON-HOUSTON. Sept. 28, 1961 [Jan. 6, 1961], No. 34912/61. Heading H1K. A junction transistor (Fig. 4) is made from an indium doped 1 ohm cm. P-type monocrystalline wafer by the following steps. The wafer is first heated in antomony vapour to form a PN junction a few Á below the surface. After removing the junction from the edges an extension is grown on one edge of the wafer by immersing it in a germanium melt containing gallium and antimony. The resulting extension is P-type and of 0À01 ohm cm. resistivity, but during growth and, if required, in a subsequent heat treatment antimony diffuses back into the wafer to form a thin N-type base layer 8 therein. After removal of the N-layer from one face the wafer is divided into rods by cuts perpendicular to the base and remaining surface N layers. Electrodes 10, 11 are then attached to the emitter zone 16 and collector zone 17 of such a rod by indium solder 12, 13. Finally with part of the surface masked by wax or varnish 14 the remaining N-layer 9 is etched away, to leave a small portion beneath the masking to which a base contact wire of gold-antimony is subsequently alloyed. Alternatively the base contact may be attached and layer 9 removed before attachment of electrodes 10 and 11. Specifications 990,981 and 990,982 are referred to.
Patent GB-736768-A (GB)
Title: Rail vehicle for container traffic
IPC: B61D3/20
Filed: 1953-12-15
Abstract: 736,768. Railway vehicles. BASELER, W. Dec. 15, 1953 [Dec. 15, 1952], No. 34930/53. Class 103 (4). [Also in Group XXX] A rail vehicle c, Fig. 1, for container traffic is longitudinally of inverted U-shape from which one or more containers d can be suspended. Fig. 4 shows a vehicle provided with a foot plate e connecting the two arms of the vehicle. A partition h may be provided to aid in supporting the foot plate. The foot plate may be adjustable vertically. The vehicles may be pivotally connected together to form a train as shown in Fig. 8, each vehicle having one vehicle arm mounted on supporting wheels b, the other arm being narrowed to fit within cheeks forming a vertical arm of the adjacent vehicle. In a modification each vehicle has only one vertical arm the horizontal portion of the vehicle being pivotally connected to the vertical arm of the adjacent vehicle.
Patent GB-957981-A (GB)
Title: A method of and apparatus for cutting band or strand material into individual lengths
IPC: B26D1/04
Filed: 1960-10-12
Abstract: 957,981. Stream cutting machines; sawing. P. WOLF. Oct. 12, 1960 [Oct. 16, 1959], No. 34954/60. Headings B5A and B5L. In an apparatus for cutting material into sections of uniform but variable length by movement towards and away from one another of the material, which is fed in band form over a supporting table 1, 1<SP>1</SP>, 1<SP>11</SP> and a cutting tool adapted to move both at right angles to and in the direction of movement of the material, the cutting tool being movable from a retracted position in the direction towards the material and back again, means movably supporting the table and holding the same and the material outside the range of the cutting tool, and actuating means to move the table in phase with the tool movement into the range of the cutting tool to cause the tool to cut off a section from the material. As shown a waffle or dough band 18 is fed between rollers 17 on to a three part table 1, 1<SP>1</SP>, 1<SP>11</SP>. The sections 1 and 1<SP>11</SP> are pivotally connected at 6 and 6<SP>1</SP>, the ends nearest each other being movable up and down taking the section 1<SP>1</SP> with them. The section 1<SP>1</SP> is also able to move in a horizontal direction with the cutting tool during a cutting stroke. A band saw 2 and its support 13 are oscillated about a pivot 14 by means of a crank pair 7 connected to the traverse 13<SP>1</SP> by arms 8 slidable in bearings 9. The height of the bearings 9 can be adjusted to determine the centre of oscillation of the bars 8 and thus the oscillating width of the handsaw 2 and the table section 1<SP>1</SP>. A contact drum 16 energizes an electromagnet 4, which raises the table 1, 1<SP>1</SP>, 1<SP>11 </SP>in phase with the oscillation of the bandsaw 2 so that the waffle band is cut. A selector switch 15 enables the frequency of this energization to be controlled so that it can be the same as, twice, three or more times the oscillation frequency of the bandsaw 2. An electromagnet 5 is energized whenever electromagnet 4 is not energized to return the table to its normal position. The waffle band may first be cut longitudinally by a frame saw 19.