baber/WOPTO huggingface dataset:
Patent GB-253772-A (GB)
Title: Improvements relating to weighing scales
IPC: G01G1/00
Filed: 1925-10-10
Abstract: 253,772. Hopkinson, J. Oct, 10, 1925. Casings.-In a weighing. - scale having an enclosed column for the chart and an exposed base lever system, a removable cover is provided for the base lever system whereby the scale may be converted from a partly-open to a completely enclosed scale. As applied to a scale of the kind described in Specification 6285/06, the exposed parts, viz. the base lever and the lower parts of the check arms are enclosed by a cover 3 provided with openings 8 for the pan supports and with a flange 6 fitting against the usual column 7. The cover is supported upon the base 2 through the intervention of a frame 3<1>.Spacing collars 4 are inserted between the scale pans and their supports in order to raise the pans clear of the cover. As the flange 6 is too small to pass over the casing 9 supported by the column 7 the cover 3 is formed with a gap 10, Fig. 2, so that the cover may be slid into position sideways. The gap is afterwards closed by a device 6' carrying a displaceable instruction plate 15 permitting ready access to the dash-pot control. The under side of the base may be closed by a bottom plate. In a modification the cover 3 is made with an opening sufficiently large to pass over the casing 9, and extra cover plates are used to close the gaps. In a further modification the cover is made in two portions which are placed in position from the sides or ends of the machine.
Patent GB-1348415-A (GB)
Title: Process and apparatus for continuous production of sections having  an expanded plastics core and a thermoplastics coating
IPC: B29C44/46
Filed: 1971-04-19
Abstract: 1348415 Extruding foamed plastics CHEMISCHE WERKE HULS AG 19 April 1971 [28 March 1970] 25344/71 Heading B5A [Also in Division C3] A foamable polystyrene, polyolefine, or polyvinyl chloride plastics, containing azodicarbamide or low boiling hydrocarbon expanding agent, is delivered from a single extrusion source through a tubular outer die passage 10, Fig. 1, and an inner die passage 7, the outer passage 10 being defined between cooling rings 5, 2, which are otherwise insulated at 3 from the die head including the passage 7, so that the tubular extrudate issuing from the passage 10 is cooled sufficiently to define an unfoamed outer skin which is sized by a vacuum sizing die 6, and which is filled with foaming plastics issuing from the passage 7. In the Fig. 3 embodiment, the tubular outer die passage is diametrically interconnected by a similarly cooled passage 12, on both sides whereof are insulated passages 16 from which foaming plastics issues to fill the sections between the unfoamed tubular outer skin and an interconnecting unfoamed diametral rib.
Patent GB-156352-A (GB)
Title: Improvements in the construction of tubular members such as aeroplane struts and thelike
IPC: B64C3/18
Filed: 1919-10-18
Abstract: 156,352. Wylie, H. N. Oct. 18, 1919. Metal and fibrous pipes and tubes. - A tubular member, such as an aeroplane strut, made of sheet metal, papier mache, compressed fibre, or other material, comprises a nose plate 4, bent only in easy curves, a fairing 6, and a web or stiffener 5, the edges of the fairing being secured in a groove formed between the outside edge 8 of the nose and the edge 9 of the web. A packing strip 7 may be inserted. Modifications are described in which (a) the edges of the fairing 6 are stepped so that its facelies flush with the outer face of the nose plate 4, and (b) the packing strip is omitted and the edges 9 are stepped to form the groove into which the edges of the fairing 6 fit. The fairing may be secured to the edges 8 and 9 by rivetting, or by wires passing through the edges 8, 9 and the, edges of the fairing 6 from one side of the tubular member to the other. The nose plate 4 and the fairing 6 may be reinforced by a web or webs and may be in more than one part.
Patent GB-735511-A (GB)
Title: Manufacture of nitrated aromatic ß-hydroxyethyl sulphones
IPC: C07C315/04
Filed: 1951-11-01
Abstract: In a process for the manufacture of nitrated aromatic b -hydroxyethyl sulphones, an aromatic b -hydroxyethyl sulphone or an aryl derivative thereof is converted into the sulphuric acid ester by treating it with strong sulphuric acid, the compound so obtained is then nitrated, and the sulphuric acid ester radical is split off by hydrolysis in a dilute solution of sulphuric acid, advantageously at about 80 DEG  C. to about 110 DEG  C.  The products have the formula <FORM:0735511/IV (b)/1> in which R represents an aromatic residue and is advantageously a residue of the benzene series.  The products can be reduced to the corresponding amino compounds.  The b -hydroxyethyl group can be converted to the vinyl sulphone group by treating the sulphuric acid ester with an alkali.  In examples (1) benzene-b -hydroxyethyl sulphone is reacted with concentrated sulphuric acid at a temperature not above 30 DEG  C., the product is treated with mixed sulphuric and nitric acids and heated to 40 DEG  C., and the reaction mixture is then diluted with water and boiled, to yield the nitro-compound, probably 3-nitrobenzene-b -hydroxyethyl sulphone.  In a generally similar manner are prepared (2) nitro - 1 - methylbenzene - 4 - (b  - hydroxyethyl sulphone); (3) o- and p-nitro-1-methyl-benzene-2-(b -hydroxyethyl sulphone) (as a mixture which can be separated by crystallization), 6-nitro - 1 - methyl - 3 - chlorobenzene - 2 - b -hydroxyethyl sulphone); (4) mixed nitro compounds of naphthalene-2-(b -hydroxyethyl sulphone); (5) 1-chloro-4-nitrobenzene-2-(b -hydroxyethyl sulphone), 1 - chloro - 2 - nitrobenzene - 4 - (b  - hydroxyethyl sulphone) (from 1 - chlorobenzene - 4 - (b  - acetoxyethyl sulphone) and 1 - bromo - 2 - nitrobenzene - 4-(b  - hydroxyethyl sulphone); (6) a urea derivative of the probable formula <FORM:0735511/IV (b)/2> (7) 1 - amino - 4 - nitrobenzene - 2 - (b  - hydroxyethyl sulphone) from 1 - acetylaminobenzene-2 - (b  - acetoxyethyl sulphone), 1 - amino - 2-nitrobenzene - 4 - (b  - hydroxyethyl sulphone from 1 - acetaminobenzene - 4 - (b  - hydroxyethyl sulphone), 4-amino-3-nitrodiphenyl-41-(b -hydroxyethyl sulphone) from 4-acetaminodiphenyl - 41 - (b  - hydroxyethyl sulphone) and probably 4 - amino - 2 - nitrodiphenyl - 41 - (b -hydroxyethyl sulphone) from 4-aminodiphenyl-41 - (b  - hydroxyethyl sulphone); (8) nitro (probably - 4 - ) - naphthalene - 2 : 6 - di - (b -hydroxyethyl sulphone); (9) 1 - hydroxy - 2-nitrobenzene, 4 - (b  - hydroxyethyl sulphone) and (10) 1-hydroxy-2 : 6-dinitrobenzene-4-(b -hydroxyethyl sulphone) from 1-hydroxy-2-nitrobenzene-4-(b -hyrdoxyethyl sulphone).
Patent GB-1420999-A (GB)
Title: Axial guiding apparatus
IPC: F16C29/06
Filed: 1973-05-30
Abstract: 1420999 Bearings C BETRIX 30 May 1973 [20 June 1972] 25642/73 Heading F2A A rectilinear-motion recirculating ball bearing for a cylindrical member 5 comprises a bush 1, and a cage 2 therewithin providing for each series of balls a rectilinear slot, a groove 3 parallel to the slot and defined in the outer side of the cage, and two incurved ramps connecting the corresponding ends of the slot and groove, the cage being constituted by a tubular element with a solid wall in which are provided said slots, grooves, and ramps, the bush being cylindrical and in which are embedded parts 6 projecting inside the bush, these parts serving as races for the balls in rolling contact with the cylindrical member 5. The parts 6 may comprise studs, the outer surfaces of which are flush with the outer surface of the bush. The races on the parts 6 may be slightly concave so that the clearance of the balls may be adjusted by rotating the cage with respect to the bush. In further embodiments, the parts 6 may be hexagonal, prismatic, or cylindrical; in the latter case, one or two cylinders may be provided for each row of balls. The bush may be of P.V.C. or metal.
Patent GB-450347-A (GB)
Title: Improvements in or relating to reciprocating pump control mechanism
IPC: F02M59/30
Filed: 1935-09-16
Abstract: 450,347. Reciprocating pumps. BUGATTI, E., Molsheim, Bas-Rhin, France. Sept. 16, 1935, No. 25666. Convention date, Sept. 17, 1934. [Class 102 (i)] A pump plunger 1 is pivoted to a lever 7 having slots 8, 9 in which slide blocks 10, 11 carried by cranks 12, 13, the phase relationship of which is varied to alter the stroke of the pump. The cranks 12, 13 are carried on shafts 16, 17 which also carry pinions 14, 15. The pinion 14 is connected by a key 18 to a sleeve 19 connected by helical tongues and grooves to a member 21 integral with the shaft 16. The stroke is varied by moving the sleeve 19 by means of the lever 22.
Patent GB-1339058-A (GB)
Title: Package seal
IPC: B29C53/38
Filed: 1971-04-19
Abstract: 1339058 Seaming non-metallic sheet material KRAFTCO CORP 19 April 1971 [6 April 1970] 25712/71 Heading B5K [Also in Division B8] A package comprises a substantially cylindrical multi-ply wall 13 formed with an inner ply 23 and an outer ply 25, means 35 securing the plies at the ends of the package to form end seals and longitudinally extending seal means 15 for the wall having an inner seal formed at overlapped edges of the inner ply and an outer seal formed at overlapped edges of the outer ply, the plies not being interleaved at the seal means. As shown in which the inner and outer plies are heat-sealable coated SARAN (R.T.M.) or other film materials coated with heat-sealable coatings or in which the plies are of heat-sealable material, the plies are stripped from rolls 50, 55 and fed on to a former 57 with the edges of the plies off-set to form marginal strips 27, 29 arranged in overlapping formation. An intermediate ply 45 is also fed to the former 57 from a roller 53. A heated flowable product, e.g. processed cheese is then discharged from a nozzle into the formed tube and the heat of the product seals the marginal strips. An intermediate heat seal 41 produced by a radiofrequency type sealer may also be applied. After filling, clenching bands 35 are applied to the ends of the tube. The package carries a nozzle 7 on a band 19 for extruding the contents.
Patent GB-784223-A (GB)
Title: Improvements in or relating to frames for bicycles
Inventor: REDMOND PETER IGNATIUS
IPC: B62J7/04
Filed: 1954-09-04
Abstract: 784,223. Cycle frames. PHILLIPS & CO., Ltd., J. A. Aug. 12, 1955 [Sept. 4, 1954], No. 25727/54. Classes 136(1) and 136(3) A frame for a bicycle comprises a steering tube 1, a down tube 2, a bottom bracket 3, a seat pillar tube 4 and twin tubes 6 extending rearwardly from the steering head tube, diverging to pass on either side of the seat pillar tube and extending downwardly in the position normally occupied by the rear forks and bent near the normal position of the rear wheel axle in a curve to form parts extending forwardly to meet the bottom bracket 3, rear wheel mounting plates 12 being secured to the tubes 6 at their curved rear parts. Spacers 7 connect the tubes 6 to the seat pillar tube 4. The tubes 6 are provided with bridging tubes 10, 11 to the rear of the seat pillar tube and of the bottom bracket for bracing the frame and to provide attachment parts for the mudguard and brake. Strengthening plates 14, 15 are brazed or welded to the tubes 6 and to the steering head tube 1 and bottom bracket 3 respectively. A carrier may be incorporated in the frame. This comprises a pair of tubes 16 bent into a V-shape and braced by bars 17.
Patent GB-482048-A (GB)
Title: Improvements in or relating to type-printing telegraph receivers
IPC: H04L17/26
Filed: 1936-09-22
Abstract: 482,048. Type - printing telegraphy. CREED & CO., Ltd., and SALMON, R. D. Sept. 22, 1936, No. 25732. [Class 40 (iii)] In a type-printing receiver having aggregatemotion mechanism for positioning the typecarrier or the member selecting a type bar, the various units of the mechanism are, on termination of the signal, actuated simultaneously by selector members set by the signal elements. In the arrangement shown in Fig. 1, a slotted frame 34 rocked by a mechanical regenerator in response to signal elements as described in Specification 463,659 controls five pairs of levers 51 which transfer the settings of the frame 34 to five bars 42 in succession under the control of a distributer cam-shaft 53 rotated through 180‹. The bars are guided in a slotted plate 49 and have slotted ends engaging a bar 41 carried by lever 43. The cam shaft 53 towards the end of its movement operates an arm (not shown) on lever 43 whereby the slotted ends of the bars 42 are moved downwardly, and strikers 56 thereon actuate the detents of the operating mechanism of sun and planet wheel aggregate motion units as described in Specification 466,815. Case-shift may be performed by setting the aggregate - motion device to certain positions, but - it is preferred to use an additional bar 42A, Fig. 3, operating separate case - shift mechanism. The bars 42 are set by the case-shift signal and permit one or other of two bars 47 at right-angles thereto and normally urged in one direction by spring- controlled lever 62, Figs. 3 and 5, to be moved in the other direction by spring 55 when lever 62 is rendered ineffective by a cam on shaft 53 after the bars 42 have been set. The bars 47 set bar 42A to the left or right, as the case may be, through bell-cranks 65. The slotted end of bar 42A engages a rod 66 carried by a pivoted member 67 which is moved by a lever 57 and a further cam on shaft 53 so that a striker 56A operates one or other of a pair of detents controlling case-shift mechanism as described in Specification 468,839, [Group XVI].
Patent GB-1189264-A (GB)
Title: Improvements relating to Rotary-Piston Internal Combustion Engines
IPC: F02B53/12
Filed: 1968-05-29
Abstract: 1,189,264. Rotary-piston internal combustion engines. DAIMLER-BENZ A.G. May 29, 1968 [June 9, 1967], No.25734/68. Heading F1F. In a rotary-piston I. C. engine particularly but not exclusively of trochoidal type, to keep the ignition passage which communicates with the combustion chamber of the engine free of residues, the housing includes a bore in the vicinity of sparking-plug electrodes communicating with a compressed air source and which adjacent the passage is fitted with a non-return which automatically closes when the pressure in the passage, is greater than in the bore and which on starting of the engine is open to permit compressed air to blow out any residues that may have collected in the ignition passage. As described, a two-unit engine comprises a housing having side parts 2, 2a, and jacket parts 1, 1a having bi-arcuate epitrochoidal inner surfaces over which slide the corners of three-sided planetarily rotatable pistons and an intermediate part 3 between the jacket parts. Ignition passages 6, 6a, communicating between the electrodes of sparking-plugs 4, 4a and respective combustion chambers 8, 8a are connected by bores 9, 9a, 10 and 11 to a union 12 connected to a compressed air source. Sleeves 14, 14a in the bores 9, 9a respectively provide seats for loose ball valves 13, 13a. A valve, not shown, may be provided between the compressed air source and the valves 13, 13a, which is opened electro-magnetically when the engine starter is operated and closes as soon as the starting operation is completed.
Patent GB-586404-A (GB)
Title: Improvements relating to measuring mechanism for use in machines for forming fibres into sliver or yarn
IPC: B65H61/00
Filed: 1944-12-22
Abstract: 586,404. Measuring continuous lengths of material. MACKIE & SONS, Ltd., J., and MACKIE, J. P. Dec. 22, 1944, No. 25785. Drawings to Specification. [Class 42 (ii)] [Also in Groups IX and XIX] In apparatus for measuring lengths of material delivered from a machine, wherein a bell rings or other indication is given after the delivery of a predetermined length of material, the bell striking mechanism is controlled by a ratchet and pawl counting mechanism (see Group XIX) driven from the delivery roller of the, machine, the circumferential length of operation of the pawl on the ratchet wheel being adjustable, without stopping the machine, to alter the "bell length."
Patent GB-964314-A (GB)
Title: Detecting double sheets in sheet metal feeding
IPC: B21D55/00
Filed: 1963-06-28
Abstract: 964,314. Feeding sheets. BETEILGUNGS UND PATENTVERWALTUNGSGESELLSCHAFT m.b.H. June 28, 1963 [June 30, 1962], No. 25872/63. Heading B6B. Apparatus for detecting the presence of two superposed sheets of ferromagnetic material, which may have been separated from a pile, passing over a table &c. 1, comprises a magnet 3 which is normally held by a spring 5 at a short distance below the upper surface of the table, but will move upwardly towards the said surface when the magnetic field is increased by the presence of two superposed sheets 2, and so initiates a switching pulse. The magnet 3 is U- shaped or M-shaped, is in a non-magnetic housing 4, and is urged by the spring 5 against a microswitch 6 which acts as a stop. The housing 4 has a screw connection 7 with a housing 8 for the switch 6, so that the distance between the magnet 3 and a sheet 2 can be adjusted: this adjustment, and the initial setting of the tension of the spring 5, enables the magnet to be set so that it only moves upwardly when two or more superposed sheets 2 pass thereover. On the upward movement of the magnet 3, the switch 6 is opened to initiate a warning signal, to stop the processing machine, or to actuate a device for the ejection of the second sheet.
Patent GB-349861-A (GB)
Title: Machine for tamping railway sleepers
IPC: E01B27/16
Filed: 1930-08-29
Abstract: 349,861. Packing railway ballast. COLLET, LES FILS D'A, 41, Rue Cardinet, Paris. Aug. 29, 1930, No. 25882. Convention date, Oct. 26, 1929. [Class 124.] Percussive tools.-Two electrically-driven tamping hammers 10 are mounted symmetrically on a railway velocipede 13 propelled along a single rail by the contact of the workman's feet with the ground. Each hammer 10 is connected by a universal joint 10<1> with an arm 8 rotatable axially in a socket 9 at the end of a cross-bar 7 mounted on a frame 4 which is pivoted on standards 3. The driving motor 6 for the hammers is also mounted in the frame 4 so as to counterbalance the weight of the hammers.
Patent GB-884558-A (GB)
Title: Improvements in or relating to fluid pressure relief valves
Inventor: GIBBONS DAVID JOHN
IPC: F16K17/08
Filed: 1958-08-12
Abstract: 884,558. Valves. GENERAL ELECTRIC CO. Ltd. July 16, 1959 [Aug. 12, 1958], No. 25888/58. Class 135. A pressure relief valve comprises a first chamber 6 having an inlet 2 and outlet 3, a closure member 7 normally biased e.g. by spring 14 on to its seat 8 and means e.g. bellows 12 defining with member 7 a second chamber 19 connected at 16 to an independent pressure supply, to control the valve opening independently of the downstream pressure. The outlet contains a restriction at 17 to maintain substantially inlet pressure in chamber 6 and the member 7 is connected to a dashpot 9, 10.
Patent GB-1135203-A (GB)
Title: Improvements in or relating to radio direction finders
Inventor: BYATT DENNIS WILLIAM GEORGE
IPC: G01S1/02
Filed: 1965-06-18
Abstract: 1,135,203. Radio direction finding. MARCONI CO. Ltd. 9 March, 1966 [18 June, 1965], No.25892/65. Heading H4D. The invention relates to a wide band direction finder. Diametrically opposite antennµ in a circular array of eight are coupled by means of stationary windings of a goniometer. The rotary part of the goniometer comprises two orthogonally arranged windings 9 and 10 rotated by secondary rotor 12, synchronized by primary rotor 13 and respectively producing from received signals, two signals of varying amplitude, said amplitude variations being in mutual phase quadrature. The two signals are fed to wide band amplifiers 14 and 15 and the signal from an omnidirectional antenna 11 is similarly fed to a wide band amplifier 16. The outputs of the three amplifiers are fed to a plurality of direction indicating arrangements, each operating on a particular frequency, one of which is shown. The output of amplifier 14 is combined in securing means 20 with the output of amplifier 16, and the output amplifiers 15 and 16 are similarly combined in removing means 21. The particular frequency at which the arrangement operates is then defined by local oscillators 24 and tuned receivers 22 and 23. The outputs of 22 and 23 are shown at (A) and (B), Fig. 2, respectively and are in phase oscillations, having envelopes varying in a sinusoidal manner and mutually in phase quadrature. Signals (A) and (B) are fed, via gates 25 and 26 respectively to the orthogonal deflection plates of a C.R.T. 27. Thus if gates 25 and 26 were continually open, a line would appear on the C.R.T., rotating in synchronism with the goniometer. A light source 33 is thus provided, rotating on the end of an arm 34 in synchronism with the rotation of the goniometer. A photo-cell 29 is provided on the end of an arm 30 and is manually rotated to a position indicated on a scale 32. When the light source 33 sweeps past the photo-cell 29, a pulse (C) is produced which opens the gates 25 and 26. The angular position of photo-cell 29 is thus varied until the gated through line indication on the C.R.T. is horizontal. This indicates that at the instant of gating no current is flowing through the " A " channel and any phase cross &e., therein can be neglected. The direction of the incoming signal can then be read off scale 32.
Patent GB-860422-A (GB)
Title: Improvements in method and apparatus for manufacturing ply yarn
IPC: D01H1/18
Filed: 1959-07-28
Abstract: 860,422. Spinning and twisting yarns. UNITED STATES RUBBER CO. July 28, 1959 [Oct. 10, 1958], No. 25900/59. Class 120(3) A method of manufacturing ply yarn from the yarns on a multiple end beam comprises advancing the yarns from the beam in two groups, advancing each yarn in a first group in a rotating balloon about a yarn package and to a plying point, advancing the yarns from the yarn packages within the rotating balloons to the plying points, plying the yarns at the plying point into two ply yarn, and winding each yarn from the second group into a single end yarn package suitable for use within the balloon. The yarns are advanced from within the rotating balloons to the plying point at the same linear speed as the ballooning yarns. The apparatus shown comprises means for forwarding yarns from a multiple end beam to and around rotatable, rubber coated rollers 19 and 20 which are braked by means comprising drum 26 and band 27, fixed at one end to stud 27<SP>1</SP> and having weight 28 dependent from the free end, to enable the yarns to be tensioned. The yarns Y are divided into two groups 61, 61<SP>1</SP> &c., and 41, 41<SP>1</SP>, 41<SP>11</SP> &c., when they leave roll 20 passing respectively through guides 62 and 43. The yarns in group 61 &c., leave guide-eyes 62 to pass in web-like form under bar 60 carried at one end of a crank 64 fixed to a rotatable shaft 55, and over bar 66 attached to a cantilever arm 67, to a further guide 69, and finally to a winding station generally designated at 80 (Fig. 5) to form package 93. Yarns 41-41<SP>11</SP> &c. meanwhile pass via guides 43 and 44 to a pair of metering rolls 46, 47 and are wrapped several times therearound, Fig. 9 (not shown) before passing under a rubber covered presser roll 48 to a pig-tail guide 49 which is mounted on the frame crosspiece 50 of the yarn plying machine generally designated at 99, as shown in Fig. 5, and which generally conforms to that described in Specification 741;327. Yarn 41 is lead about metering rolls 46, 47, adjusted to deliver the yarn to a plying point at the same rate as that at which the metering rolls 145, 146 deliver yarn 142 to the plying point, to a pig-tail guide 55 positioned above spindle 141 via a rotating flyer guide 56 in a balloon about the internal package 59, to an opening in the periphery of a disc 140. From disc 140, yarn 41 advances into the spindle 141 to the plying point where yarns 41 and 142 are plied together into yarn 100 and on to package 104. Specification 659,473 also is referred to.