baber/WOPTO huggingface dataset:
Patent GB-681727-A (GB)
Title: Improvements in or relating to multiple presses for cutting, stamping or bevelling
IPC: B21D28/12
Filed: 1949-12-24
Abstract: 681,727. Punching. PRATURLON, J. Dec. 24, 1949 [Dec. 24, 1948], No. 33053/49. Class 83 (iv). A rotary multiple press for punching, stamping, and bevelling a continuous band of sheet-metal comprises a plurality of radiallyarranged pressing devices P<SP>1</SP> to P<SP>16</SP>, Fig. 1, slidably supported for axial movement in a rotary member comprising a hub 9, Fig. 2, a disc 7, and a drum 15, the support b of each individual press having a key 11 slidable in a keyway 12 in the hub 9 and two guide-ribs 13 slidable in grooves 14 in bosses 8 on the disc 7, cam means, e.g. a roller 16 carried by each support b engaging in a groove 17 in a fixed cam member 18 for moving each press to and fro along the hub 9 when the latter is rotated, and further cam means, e.g. comprising rollers 20, 21 and cams 22, 23, for operating the individual presses, each of which includes a band-supporting table t. The cam 18 is so shaped that in the position shown in Fig. 1 the presses P<SP>1</SP> to P<SP>7</SP> all lie in the plane X-X, Fig. 2, and when the shaft 3, to which the hub 9 is keyed, is rotated by means of the pulley 6 and gears 4, 5 the presses revolve and are moved axially by the cam 8 into the plane Y-Y in passing between the two positions shown of the presses P' and P<SP>8</SP>, to pass again into the plane X-X on moving between the two positions shown of the presses P<SP>16</SP> and Pl. In the plane X-X the work-tables t of the presses form a continuous arcuate surface over which metal strip F is guided by rolls 19, 19<SP>1</SP>, the strip F being advanced not only by its frictional engagement with the tables t, but also by engagement of the pressing tools with it. The strip may be perforated by the individual presses, each of which may comprise a punch p, Fig. 4, a strip holder f, an. ejector e for the stamped piece, and a die c integral with a slide c<SP>1</SP> carrying the rollers 20, 21. Alternatively the head of the slide c<SP>1</SP> is articulated to an intermediate point of a lever pivoted at one end to the support b and carrying at the other end a roller engaged between two cam surfaces, one for raising the other for lowering the slide. In another construction the slide c<SP>1</SP> is provided with two rollers co-operating with two similar cams, whilst the punch-holder p<SP>1</SP> carries a roller engaging a further cam. Two multiple presses may be employed in series, the second making perforations in the strip between those made by the first.
Patent GB-674199-A (GB)
Title: Improvements in or relating to a method of and apparatus for forming cereal flakes
IPC: A21C11/04
Filed: 1949-12-28
Abstract: 674,199. Cereal flakes. QUAKER OATS CO. Dec. 28, 1949 [Jan. 19, 1949], No. 33092/49. Class 58 [Also in Groups V and XXVI] Cereal flakes are prepared by feeding a dough preferably extruded and in cylindrical form to a pair of smooth surfaced squeeze rollers 12, 13 to form a sheet the thickness of which is controlled by a screw 20 and .passing the sheet between a second pair of rollers 14, 15 one of which has a smooth surface and the other 14 embossed with a suitable flake design preferably one which permits the utilization of the whole sheet without waste cutouts between flakes and which is imprinted on the sheet. An air brush 30 comprising a series of nozzles, Fig. 3 (not shown), which direct air in high velocity streams against the surface of the roller 14 removes any flakes of dough which may have been cut from the sheet. As the imprinted sheet and any separated flakes leave the rollers 14, 15 they pass through hopper 16 into a rotary blower 17 (see Group XXVI) which causes separation of the imprinted flakes and which are blown out through pipe 36. The dough may be extruded through a die in the form of a sheet instead of passing rollers 12, 13 and also the rollers 14, 15 may be dispensed with the embossing being done by other means, e.g. reciprocatable platens. Scrapers 21, 22 are provided for removing material sticking to the rollers 12, 13 and a scraper 27 for removing material from the roller 15.
Patent GB-845702-A (GB)
Title: Improvements in and relating to pulverised coal burners
IPC: F23L17/00
Filed: 1956-10-30
Abstract: 845,702. Pulverulent fuel burners. WALTHER & CIE A. G. Oct. 30, 1956 [Nov. 5, 1955], No. 33105/56. Class 75(1). [Also in Group XII] In a burner for pulverized coal having a substantially rectangular cross-section, openings for secondary air supply are arranged at the sides of the burner mouth and are formed as nozzles, preferably of rectangular cross-section, the axes of which converge towards the burner mouth. In the form shown, the burner mouth 3 is of rectangular shape, a series of nozzles for secondary air being arranged along the sides and inwardly inclined. Further air is supplied by slots 5 arranged outside the nozzles, the air supply to the nozzles 4 and slots 5 being controlled by butterfly valves 6. To improve the cooling of the burner one tube 8 of the burner wall 7 may be located between the walls of the nozzles 4 and slots 5.
Patent GB-1138074-A (GB)
Title: Apparatus and method for heating strip material
IPC: B29C48/05
Filed: 1966-07-22
Abstract: 1,138,074. Heating chambers. B. F. GOODRICH CO. 22 July, 1966 [27 July, 1965], No. 33112/66. Heading F4U. [Also in Division C3] Apparatus for heating rubber or other organic polymeric strip comprises a heated chamber 11 having an inlet 22 and an outlet 23, an inclined perforated plate 24 and means for supplying air to the space beneath plate 24 so that it passes through the perforations therein to form an air cushion on which the strip is supported. Air is withdrawn from above the plate and passed through an external heater before returning to the chamber which is divided by partitions 20 into sub-compartments each having an independent air circulating and heating system so that different temperatures may be maintained therein. The central portion of plate 24 is upwardly concave. The strip is fed to the chamber from an extruder 10 and one end of the chamber is pivoted at 31, the other end being mounted on a jack 32. Preferred dimensions and temperatures are given with particular reference to a method of partially vulcanizing, expanding and further vulcanizing a rubber strip employing a blowing agent.
Patent GB-1388745-A (GB)
Title: Front seat back providing protection to occupants of rear seats of a motor vehicle
IPC: A47C7/40
Filed: 1972-07-14
Abstract: 1388745 Safety vehicle seat backs TOYOTA JIDOSHA KOGYO K K 14 July 1972 [20 Oct 1971] 33114/72 Heading A4J Injury to the occupant of the rear seat of a motor vehicle is reduced by providing the front seat back with a rear panel 2 provided with a slit 11, reinforcing members 3, 13 and buffers 7, 9. Members 3 are connected to arms 4 connected to the vehicle body or an adjustment mechanism on the seat squab and the panel, arms and buffers undergo plastic deformation when a force of impact greater than a predetermined level is exerted upon them. In a collision, a portion F of each arm 4 undergoes plastic deformation as a result of the head and chest of a rear seat occupant being thrown against the buffers and the knees of the occupant being thrown against the panel below the slit which prevents deformation produced by the knees being transmitted to the part of the panel above the slit.
Patent GB-461156-A (GB)
Title: Improvements in collapsible boxes and crates
IPC: B65D6/26
Filed: 1935-11-29
Abstract: 461,156. Collapsable crates. COOMER, A. E. Nov. 29, 1935, No. 33150. [Class 18] A collapsable box or crate consisting of a leatherboard, cardboard, &c. base'with hing- ed flaps on the edges preferably constituted by extensions from the base, such flaps being secured by wire stitches to sides 3 and ends 4 of wood, leatherboard, cardboard, &c., has metal bindings 7 secured to the vertical edges by wire stitches which are engaged by wings of a sliding corner clip 10 of right-angular section. A collapsable lid of known form, which may be reinforced by wooden strips, may also be provided.
Patent GB-848242-A (GB)
Title: Packaged bearing assemblies and method of installing same
IPC: B65D5/50
Filed: 1957-10-24
Abstract: 848,242. Packages. TIMKEN ROLLER BEARING CO. Oct. 24, 1957 [April 5, 1957], No. 33220/57. Class 94(1). [Also in Group XXXIV] A bearing is packaged in prefabricated, adjusted and assembled condition by being mounted on a sleeve simulating a journal and placed in a box. The bearing 14 (see Group XXXIV) is mounted on the sleeve 44, placed between end boards 18 and secured by a strap 22. The separate bearing end cap 28 may be placed between boards 30 and both cap and bearing are inserted in a box 12 having a tear strip 40 to facilitate opening. The box closure flaps are fixed by staples 17 and a band 38 applied. When the bearing is to be fitted, the sleeve is ejected by a ram which takes its place and then forces the bearing onto the journal.
Patent GB-1359794-A (GB)
Title: Diesel engine with a combustion chamber in the piston
IPC: F02B23/06
Filed: 1972-07-17
Abstract: 1359794 Fuel-injection I C engines DEERE & CO 17 July 1972 [16 July 1971] 33299/72 Heading F1B A combustion chamber 40 in the piston 34 has a substantially cylindrical side wall 44 and the ratio between the square of the cylinder diameter D 1  and the square of the chamber diameter D 2  is between 2 and 3À5, preferably between 2À3 and 3À2. The clearance F between the annular top face 38 of the piston 34 and the opposed wall 28 of the cylinder head 26 is less than 0À02 in., preferably less than 0À01 in., at top dead centre under full load operating conditions. Air is introduced into the cylinder 32 swirling about the cylinder axis and fuel is injected towards the wall 44 in a plurality of jets from the nozzle tip 68. The air swirl rate in the cylinder may be between 3000 and 6000 r.p.m. calculated in a manner described in the Specification. The surface 38 may have a portion 50 which tapers when the engine is cold but which at full load is parallel to the wall 28. The nozzle 64 is inclined to the cylinder axis and the nozzle orifices 74 to 77 are arranged to provide jets which strike the wall 44 at the same distance from the surface 38. The dimensions of the orifices 74 to 77 and their inclination to the cylinder axis are given in the Specification. The air may be supplied to the cylinder by an exhaust gas driven supercharger (16), Fig. 1, (not shown), via an intercooler (22). The fuel may be injected over approximately 24 degrees of crank angle, Fig. 11, (not shown), beginning 10 to 15 degrees before top dead centre on the compression stroke.
Patent GB-521374-A (GB)
Title: Improvements in gravity operated electric switches and their use in automatic fire extinguishing systems upon aircraft and the like
IPC: H01H35/14
Filed: 1938-11-17
Abstract: 521,374. Fire - extinguishing. GRAVINER MANUFACTURING CO., Ltd., SALMOND, H. M., and MATHISEN, A. Nov. 17, 1938, No. 33428. [Class 47 (ii)] ] [Also in Group XXXVIII Automatically-operable fluid fire-extinguishers 3 for aircraft are provided with fuses controlled by (a) flame or temperature-responsive members 2, 2a associated with each of the engines b, (b) an inertia switch 12 in the nose of the fuselage a operative by impact due to an accidental crash.  (c) push-button switches 13, 14, to'enable the pilot at-will to discharge the. extinguisher, and (d) a gravity switch 30 which operates if the aircraft overturns on landing, a switch 68 being also provided which prevents operation of the system when the aircraft is purposely flown upside down. The switch 68 may be operated by the undercarriage-retracting mechanism, by the wing slots, by altitude-responsive means, or by the engine-throttle, so as to be closed only when the aircraft is near the ground. Instead of operating the switch 68, these means may operate on a locking means for the gravity switch 30. The supply from the battery 9 is taken over twin-conductor cables, as 8; and terminal blocks 4, 70.
Patent GB-648777-A (GB)
Title: Improvements in cyclic pitch control mechanisms for rotary-wing aircraft
IPC: B64C1/00
Filed: 1947-12-18
Abstract: 648,777. Helicopters. AVIATION WORKS, NATIONAL CORPORATION, and SLECHTA, J. Dec. 18, 1947, No. 33449. [Class 4] Cyclic pitch control of the rotor blades 6 of a helicopter is effected by arms 5 connected to the blades by skew pivots 8, and connected to a reciprocating member 3. The latter carries pins 4 engaging a sleeve 2 secured to the rotor drive shaft 1, and which allow the reciprocating movement. The extent of pitch variation is determined by the eccentric displacement of the member 3, which may be effected either directly, or by a ring 9 connected to the member 3 by pins 10 perpendicular to the pins 4.
Patent GB-396264-A (GB)
Title: Improvements in aeroplanes
IPC: B64D17/78
Filed: 1932-11-25
Abstract: 396,264. Controlling aircraft. APOLLONIOU, P. and CHICK, S. L., 409, East 70th Street, New York, U.S.A. Nov. 25, 1932, No. 33464. Convention date, Dec. 22, 1931. [Class 4.] The main plane of an aeroplane is fitted with an auxiliary surface 15, normally nested against the main plane, which can be raised by the pilot to direct air into scoops 34, 35 opening into conduits 39, 43 by which the air is directed respectively downwardly against the rear part of the fuselage and upwardly against the forward part when a nose dive is threatened. Branches 48 on the conduits 43 suck out air from the rear end of the fuselage. The auxiliary plane is hinged at its rear edge and is normally held closed by a spring 24, Fig. 4, acting on a lever 23. The plane is raised by a lever 29 acting through a cable 27 and chain 25, and is lowered when the lever is released by the spring 24. The machine is fitted with two skids, supported on springs, and with a pair of retractable wheels as shown.
Patent GB-655652-A (GB)
Title: Improved method of producing continuous extruded metal articles
IPC: B21C33/00
Filed: 1948-12-31
Abstract: 655,652. Extruding. ABBEY, A. (Dow Chemical Co.). Dec. 31, 1948, No. 33640. [Class 83 (iv)] A continuous extruded article 11 of magnesium base alloy is formed in a direction extrusion press having a cylinder cross-sectional area at least 50 times greater than the cross-sectional area of the die by terminating the stroke of the ram 9 before the length of the butt 5 of the billet in the cylinder 6 is less than half its diameter, inserting the next billet 12 and then making the next extrusion stroke so the billet 12 is caused to weld to the butt 5. For extruding strip, the die and cylinder crosssection ratio should preferably be at least 1 : 90 and, for round rod, 1 : 140. To prevent trapping of air, the end of the ram has a conical or wedge-shaped depression 10 which forms a convex surface on the end of the billet so that air is forced out past the new billet as it. is welded to the butt. Only the first billet to be extruded need be heated, succeeding billets being heated from the butt and from the mechanical working of the material. The magnesium alloy may contain zirconium. Specification 10629/00, [Class 83], is referred to.
Patent GB-388151-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H33/10
Filed: 1931-12-07
Abstract: 388,151. Arc-rupturing in switches. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Leeds, W. M. ; 1007, South Avenue, Wilkinsburg, Pennsylvania, U.S.A.) Dec. 7, 1931, No. 33869. Convention date, Jan. 24. [Class 38 (v).] High-tension switches; magnetic blow-outs.- A deionizing structure, for securing below each of the fixed contacts 21 of an oil or other insulating liquid switch, particularly of the kind in which a bridging contact 25 is lowered from the fixed contacts to break a circuit, comprises a series of groups of plates 27, each group comprising a magnetic plate 31 sandwiched between fibre or other insulating plates 29, the groups being themselves spaced by plates 35 of fullerboard or other oil-absorbing material. The fibre plates 29 are slotted, and the edges of the slots have projections which are chamfered, as shown, on the side facing the open end of the slot, to facilitate the entry of the arc into the slot, and are straight on the opposite side to prevent the arc moving out of the slot. The magnetic plates 31 are also slotted, the inner end of the slot being narrower than the outer end so as to provide a stronger field for forcing the arc into the slot. The slots in plates 31 are also wider than those of the plates 29 and have liners 33 to protect them from the arc, the liners 33 having slots with projections 51 similar to, and coincident with, those of the plates 29. The spacers 35, Fig. 7, are also slotted and are provided with oil pockets 57 to retain deionizing fluid in the vicinity of the arc, the pockets being oval in shape, with the major axis transverse to the direction of the slot, and being separated by projections 63 similar to those 51 but staggered with respect thereto, so as not to oppose too great a resistance to the movement of the arc. One side of the slot is cut away at 59 to provide a flared vent 61 whereby arc gases are deflected to one side of the movable bridging contact, the vent on the structure of the other fixed contact being arranged to deflect the gas stream to the opposite side of the movable contact, so that the two streams do not intermingle. To prevent the arc from moving out of the groove at the upper end, the top three groups of plates have their slots closed at 65, Fig. 3.
Patent GB-1133817-A (GB)
Title: Improvements in or relating to fuse cartridges
IPC: H01H85/044
Filed: 1967-07-24
Abstract: 1,133,817. Fuses. LUCIEN FERRAZ & CIE. 24 July, 1967 [29 July, 1966], No. 33915/67. Heading H2G. A fuse cartridge comprises an insulating body 1 in which are formed a number of fuse passages 1b each containing a fuse element 2 of e.g. silver, embedded in arc-quenching material e.g. powdered silica or sand, and a cooling passage 1a in the body and through which a cooling fluid e.g. air, circulates during operation of the cartridge. The fuse elements may contact the walls of their passages to improve heat dissipation. The passages are closed by heads 4, extensions 4a of which are used to connect the fuse into circuit. A liquid-cooled version (Fig. 3, not shown) has its closure heads (7) provided with apertures (7b) whereby a coolant e.g. demineralized water may be passed through the cartridge. Seals (8), e.g. 0-rings, prevent access of the liquid to the fuse elements.
Patent GB-827288-A (GB)
Title: Improvements in or relating to optical measuring apparatus
IPC: G01B11/16
Filed: 1955-11-28
Abstract: 827,288. Polarizing apparatus. MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE SAINT - GOBAIN, CHAUNY & CIREY'S. A. DES. Nov. 28, 1955 [Nov. 27, 1954], No. 34072/55. Class 97(1)  Apparatus for determining the stresses in a sheet plate or block of transparent material having parallel opposed faces comprises solely means for directing a beam of polarized light obliquely' against one face of the specimen and means for measuring the birefringent power of the specimen by examination of the state of polarization of the emergent light beam, such measuring means being located either on the same side of the specimen as the beam-directing means, or on the opposite side. As shown light from a source 1 is collimated by a lens 2 and reflected by a prism 3 upon a monochromatic filter 4 and a plane polarizer 5 whence it passes to a transparent prism 6 and is incident at an angle # on the plate 8 the stresses in which are to be measured. The angle # may be varied by using prisms 6 of differing refractive indices. The light is reflected at an angle # from the lower face 12 of the plate and reaches an eyepiece 11 by way of a Babinet compensator 9 and an analyzer 10 whereby the birefringence of the plate 8 may be measured. By making observations in planes of incidence coinciding with and perpendicular to the principal stress planes the values of the main stresses at the section examined may be determined. A second prism 6 may be placed beneath the plates 8 to permit observation on the transmitted beam. The collimator and prism 3 may be moved axially by a rack 13 and pinion 14 to align the reflected beam with the axis of the eyepiece 11.
Patent GB-1111197-A (GB)
Title: A process for the preparation of diphenylsilanediol
IPC: C07F7/08
Filed: 1966-07-29
Abstract: Diphenylsilanediol is prepared by mixing to prepare a solution (A) a silane of the formula (C6H5)2Si(OR)2 wherein R is an alkyl radical having 1-4 carbon atoms, (B) 1.3-4 moles of water per OR group present in (A), (C) 5-40% by weight based on (A) of an organic solvent which is a solvent for (A), which is miscible with water and has a dielectric constant of at least 10, at 20 DEG  C. and a frequency of 104 cycles/second, and (D) an acid in an amount such that the solution has a pH of from 2-5, agitating at a temperature from just above the freezing point of the solution to 40 DEG  C. and separating diphenyl-silanediol from the solution.  In the examples the radical R is methyl, ethyl, butyl and isopropyl. Suitable organic solvents are acetonitrile, acetone, isopropanol, methanol, ethanol, dimethylsulphoxide, N,N-dimethylformamide, formamide, 2-chloroethanol, 2-methoxyethanol and 4 - hydroxy - 4 - methyl - 2 - pentanone. Suitable acids are HCl, HBr, H2SO4, H3PO4 and HNO3, also used in the examples are oxalic and trifluoroacetic acids.  The product is obtained in crystalline form.
Patent GB-885242-A (GB)
Title: Thermal responsive actuator
IPC: H01H35/24
Filed: 1959-10-08
Abstract: 885,242. Temperature-responsive actuating elements. STANDARD THOMSON CORPORATION. Oct. 8, 1959 [Dec. 5, 1958], No. 34144/59. Class 64(2) In an element in which the expansion of wax in a casing compresses a sock 25 of elastic material so that an actuator pin, Figs. 1-3 (not shown), is squeezed from the sock, an annular member 14 which closes the casing has a central aperture (through which passes the pin) provided with a neck 22. The elastic material, which may be bonded to the closure member 14 and to the casing, extends through the aperture to a body 32 of the material outside the casing. The bore of the body 32 has ridges of a smaller diameter than that of the pin. Specifications 757,429 and 792,797 are referred to.