baber/WOPTO huggingface dataset:
Patent GB-328897-A (GB)
Title: Apparatus for feeding the casting pots of type composing or like machines
IPC: B41B11/82
Filed: 1929-09-16
Abstract: 328,897. Klinge, P. A., and Borgstrom, O. E. Sept. 16, 1929. Metal-pots.-Apparatus for feeding metal to the metal-pot of a type-composing machine comprises a drum-like member acted upon by the weight of a prismatic piece of type-metal, which is fed intermittently downwards by escapement-mechanism actuated by the movement of the metal-pot. A float renders the device inoperative when the metal in the pot reaches a, certain level. An ingot 5 of type-metal is supported in a frame 3 mounted on the lid 1 of the pot. The ingot is formed with teeth 6, which engage between transverse rods 7 of a drum-like wheel 8 rotatable about a spindle 10. The weight of the ingot tends to rotate the drum, which is normally held against rotation by engagement of one of the rods 7 with the upper surface of a sliding rod 20. To the rod 20 is pivoted a second rod 30, which, as the pot moves forwards, is arrested by a fork 17 on a stationary adjustable rod 15. An oblique slot in the rod 20 is thereby brought beneath the rod 7, which passes through the slot, the drum being arrested by engagement of the next rod 7 with the rod 20. The ingot 5 thus descends through a space equal to the pitch of the teeth 6. The rod 30 supports a float 33, which, when the level of the molten metal rises, tilts the rod 30, so that it misses the fork 17, and the feed-mechanism is not actuated.
Patent GB-1520291-A (GB)
Title: Composition and method for making gas-permeable articles
IPC: C08L23/04
Filed: 1975-07-03
Abstract: 1520291 Moulding fibre slurry MITSUI PETROCHEMICAL INDUSTRIES Ltd 3 July 1975 [3 July 1974 18 July 1974 22 July 1974] 28097/75 Heading B5A [Also in Division C3] A composition for making into a slurry to mould gas permeable articles such as flower pots and garden furniture comprises by weight (1) 5-50% particles of SG< 1, (2) 20-80% thermoplastics fibres of length 0À5-50 mm. and diameter 5-200 Ám., and (3) 10-75% fibres which are infusible or have a melting point above that of the thermoplastics fibres, and which are inorganic fibres optionally including organic fibres up to 10% of the total composition. A male or female mould is dipped into the slurry and a layer of the composition is accreted on it by suction. The layer is compressed with another matching porous mould, steam is passed through to dry the article, and finally the article is heated to fuse the thermoplastics fibres and bond the composition. The particles (1) may be hollow or porous and have a particle size of 30-2000 Ám., e.g. exfoliated vermiculate, perlite, expanded glass, hollow carbon bodies, or expanded thermoplastics or thermoset resins. The thermoplastics fibres (2) may be polyethylene, polypropylene, polystyrene, PVA, EVA, polyester or polyamide and be treated with a waterdispersing agent. The inorganic fibres (3) may be glass, metal, silica, asbestos, sock wool or slag fibres with cellulosic fibres included.
Patent GB-701419-A (GB)
Title: Conveying device
IPC: A22C25/08
Filed: 1951-11-30
Abstract: 701,419. Endless belt conveyers. STEEN, P. K. Nov. 30, 1951 [Dec. 1, 1950], No. 28155/51. Class 78 (1) [Also in Group VI] In a machine for cleaning fish, the fish are conveyed between a pair of endless conveyer belts 4, 5, past a rotating knife 22 which cuts off the lower part of the belly, a brush 26 which removes the intestines, a pair of spaced knives 30 which give an incision on either side of the spine, and a brush 31 which takes away the backbone. The fish are engaged by pins 6 on the belts 4, 5, the belts being pressed against a member 7 by resiliently mounted rollers 12, 13. Belt tensioning rollers 10, 11 are provided.
Patent GB-464344-A (GB)
Title: Improvements in or relating to x-ray tubes
IPC: H01J35/08
Filed: 1935-10-15
Abstract: 464,344. R÷ntgen-ray tubes. ALLIBONE, T. E., BANCROFT, F. E., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 15, 1935, No. 28509. [Class 39 (i)] A high-voltage tube has a target attached to an elongated member extending from one end of the envelope, and the target engages a rigid support also extending from the end of the envelope where the end of the member is secured and sealed in such a manner that it may be readily withdrawn with the target from the tube. The support 1 is a graded jointed or integral tube and is welded to a flange la screwed to the end plate 2, and supported by webs 1c covered by a shield 1d. The end plate 2 is secured to the insulating portion 3 of the envelope by an oil-sealed vacuum joint. A copper target 4 comprises a gold face 5 and a cover plate 6 carrying cooling pipes 7, 8 which are supported inside the support 1 by discs 12 and are welded to a plate 9 provided with an extension 10 and a flange 11 vacuum-sealed to the end-plate 2. A loose ring 15 engages the plate 2 and flange 11 and facilitates jointing, whilst an adjustable tongue on the flange 11 engages a slotted member on the plate 2 and ensures correct insertion of the target. The target unit is secured by bars 18 pivoted on pillars 16, which engage recesses in the member 9 and in pillars 19 and are screwed down by screws 17. The cooling pipes may be arranged coaxially, the inner pipe being free at one end. Specifications 415,711 and 415,722, are referred to.
Patent GB-1000149-A (GB)
Title: Improvements in or relating to cutter chains
Inventor: ASHBY DENNIS CHARLES
IPC: E21C25/36
Filed: 1962-07-25
Abstract: 1,000,149. Coal cutter chains. MATTHIAS SPENCER & SONS Ltd. July 18, 1963 [July 25, 1962], No. 28530/62. Heading B8A. [Also in Division El] A universally-jointed coal cutter chain uses Hooke's type pivot joints, the pivot elements 16 comprising two crossed pins insertable into bores 15 in the links. The links are longitudinally split, as at 24, to allow for their assembly around the pivot elements. Preferably, only alternate links carry pick boxes 20 and, reckoning the pick-carrying face of these links as the front, the sprocket-engaging portion 37 of the links is on their side face. The chain is described in association with a jib, Fig. 4 (not shown, but see Division E1) in which the working run of the chain is in a plane transverse to the non- working run, the chain being driven in the latter run.
Patent GB-773131-A (GB)
Title: Improvements in and relating to the preparation of esters of chloromethyl benzoic acids
IPC: C07C69/76
Filed: 1955-10-06
Abstract: Esters of chloromethylbenzene carboxylic acids are obtained by subjecting esters of p-toluic acid to chlorination with gaseous chlorine at a temperature between 80 DEG  and 170 DEG  C.  In order to prepare monochloromethylbenzoic acid, chlorine is employed in an amount insufficient for the complete mono-chlorination of the starting material.  The chlorination may be effected with gaseous chlorine at 125-140 DEG  C. whilst irradiating the toluic acid ester with ultra-violet light.  Examples disclose the production of p-monochloromethyl- and p-dichloro-methyl-benzoic acid methyl esters.
Patent GB-152602-A (GB)
Title: Improvements in or relating to heating and or cooling apparatus
IPC: F26B23/10
Filed: 1920-10-08
Abstract: 152,602. Bigot, A. Oct. 15, 1919, [Convention date]. Casings and walls; tunnel furnaces; shaft furnaces; retort furnaces; drying furnaces; chemical manufacture, furnaces for; bakers' ovens. - An apparatus for calcining, baking, &c., applicable also for cooling materials, comprises a heat-insulated chamber having hollow walls loosely packed with masses of heat-absorbing material, such as bricks, through which, as also through the chamber itself, hot (or cold) gases are caused to flow. The invention is applicable for drying clays &c., dehydrating gypsum &c., treating bicarbonate of soda and silico-limestones, calcining gypsum, and baking bread. Figs. 1 and 3 shows the embodiment in a tunnel furnace. The inner walls V, pillars H, H', and top B are made of thin reinforced concrete. The outer vertical walls are of heat-insulating brick M, a layer of heat-insulating material M<1> rests on the concrete foundation, and the top B is covered with insulating powder D; G are the stacked bricks or similar heat-absorbing material. There is communication at intervals between the inner chamber and a flue S either above or, as shown, below it, and communication by controllable openings m with the outside air. End chambers E, E<1> having doors J are in communication respectively with the hot gas supply and the chimney or vice versa. Fig. 6 shows the application to a shaft furnace intended more especially for calcining gypsum. It is divided into sections by perforated horizontal partitions and is provided with feed mechanism at the top and discharge rollers at the bottom. Apertures d afford communication between the interior and the hollow walls. The gases may pass upwardly as shown or in the reverse direction. In other respects, the construction is generally similar to that described above, Reference has been directed by the Comptroller to Specifications 5788/83, [Class 82, Metals and alloys], 17606/91, 135,549, and 136,880.
Patent GB-427398-A (GB)
Title: Improvements in and relating to hydraulic change speed mechanisms
IPC: F04B1/22
Filed: 1933-10-16
Abstract: 427,398. Hydraulic transmission of power. ROBIN, L., 25A, Avenue Adolphe Buyl, Brussels, and ROGGEN, M. VAN, Sprimont, both in Belgium. Oct. 16, 1933, No. 28609. Convention date, Oct. 14, 1932. [Class 69 (ii)] In hydraulic transmission gears, one shaft carries two sets of cylinders, an actuating member for the pistons of one set being mounted on the driven shaft and positively driven from the driving shaft, the actuating member for the pistons of the other set being adjustable and positively connected to the driving shaft. The cylinder block 3, Figs. 1 and 2, mounted on a shaft 2 has cylinders 5, the pistons of which are connected to a ring 8 of variable inclination, and cylinders 15 the pistons of which are connected to an inclined ring 18 loosely mounted on a shaft 19. The trunnions of the rings 8, 18 engage guides rigid with the cylinder block. Communication between ducts 26, 27 and distributing chambers 28, 29 is controlled by distributing valves 30, 31 the heads of which are maintained in contact with inclined plates 38, 39 by the ends 36a of flat springs fastened to the cylinder block. Each valve has an internal cavity and a side port 30b or 31b. An auxiliary pump 60 supplies liquid to the interior of the shaft 2, and from thence to the distributing chambers through non-return ball valves. Pressure-relicving devices connected to the hydraulic circuit each comprise a chamber 48, Fig. 8, with a spring-pressed piston 49 and an escape aperture 48a.
Patent GB-278905-A (GB)
Title: An improvement in peaked cloth caps
IPC: A42B1/06
Filed: 1926-11-15
Abstract: 278,905. Allan, W. H. Nov. 15, 1926. Caps. - Relates to peaked cloth caps of the kind in which the stiffening member 3 of the peak is cut away in crescent formation so that it does not press on the forehead, and consists in a construction wherein the cloth 4, 5 at both the upper and lower sides of the peak is continued beyond the inner marginal edge of the stiffener, and the lining 6 is secured to this double ply at the inner edge of the extension, so as to interpose a soft portion of doubled cloth and lining between the hard inner edge of the peak and the forehead of the wearer.
Patent GB-840932-A (GB)
Title: Improvements in or relating to jigs, moulds and the like
Inventor: HARRIS DAVID PERCIVAL
IPC: B29C33/00
Filed: 1956-09-19
Abstract: 840,932. Adjustable moulds. RENOLD CHAINS Ltd. Sept. 17, 1957 [Sept. 19, 1956], No. 28689/56. Class 87(2). Chain-transmission casings are made by lining the inside of a mould with fibre glass and applying liquid synthetic plastic material and allowing it to set. The mould is adjustable and comprises flexible strips 1 clamped at their ends to blocks 2, 3 and constrained to the required shape by intermediate members 41, a base plate 5 and an upper plate 6. The tem " plate " is applied to a framework construction covered with sheet metal. Both halves of a casing are made separately in two moulds on a common base plate. Shaft holes are formed by pairs of formers 4, 4a clamped to the plates 5, 6. The end blocks 2, 3 are contoured so that the strips 1 are given the correct curvatures for the parts of the casing to enclose the sprocket wheels, the ends of the strips being clamped to the blocks by shoes 32 on the ends of arms 31. Adjustability is achieved by the block 2 being movable along the side of the plate 5 and by an arrangement in which a clamp bar 17 is screwed to blocks 21 which are in turn screwed to the sides of the plate 5, by screw and slot connections and the arms 31 are pivoted at their ends to blocks 28 which are a sliding fit on the bar 17 and are notched to receive the ends of screws 33 which are threaded through pins 34 pivoting in the blocks 28, The intermediate members 41 are also adjustable, being in the form of angle pieces on the ends of arms 37, clamped through slots to the bar 17, and tightened against the plate 5 by screws 39. Removal of one of the plates 5, 6 results in a template or contact mould. A range of blocks and strips may be provided for different-sized casings.
Patent GB-1382248-A (GB)
Title: Chmimneys
IPC: E04H12/28
Filed: 1971-06-18
Abstract: 1382248 Insulated chimneys F E BEAUMONT Ltd 8 June 1972 [18 June 1971] 28716/71 Heading F4J In an insulated chimney formed by an assembly of modular units 10, 12 each unit comprising concentric steel walls 13, 14 the former having a sheet of mineral wool 25 attached thereto by baling wire 26 and having a space between it and the outer wall 14, the latter carries a horizontal flange turned inwardly at 17, a similar flange 18 and 19 being carried by the wall 13. Adjacent sections are joined by nuts and bolts 27 extending through the flanges 15 and flange sections 17 and 19 are held by nuts and bolts 22 with the interposition of an asbestos strip 20 and an insulating sleeve 23 surrounding each bolt shank. The wall 13 comprises two overlapping sections 13a, 13b united by an asbestos band 24. The penultimate lower section (4, Fig. 1) is formed with a similarly constructed double jacketed inlet section (8, 9) inclined upwardly towards the chimney axis at 60 degrees.
Patent GB-882215-A (GB)
Title: Improvements in or relating to temperature control devices
IPC: G05D23/24
Filed: 1958-09-08
Abstract: 882,215. Control systems for heating resistors. USINES & FOUNDERIES A. MARTIN. Sept. 8, 1958 [Sept. 7, 1957; June 24, 1958], No. 28746/58. Class 38 (4). A temperature controller for an electric hotplate controlled by a thermal cycling switch 1, 3-5 has a replaceable negative temperature coefficient resistor 2 in thermal relation with the heater element 10 and in series with the heater 5 of the cycling switch so that as the temperature of the element increases, the resistance of the negative temperature resistor is reduced, hence reducing the average current to the heating element. An additional resistor may be placed in parallel with the heater 5 to adjust its characteristics. In an alternative arrangement a manually adjustable resistor 20 is placed in series with resistor 5, and the element 10 may be in two parts so that one part may be short circuited by a switch 21. Indicator lamps 16, 17 may also be provided.
Patent GB-1017063-A (GB)
Title: Improvements in or relating to electric limit switches
Inventor: BOYCE FREDERICK CHARLES
IPC: H01H21/28
Filed: 1962-07-26
Abstract: 1,017,063. Retractive switches; snap-action switches. PLESSEY CO. Ltd. Nov. 16, 1962 [July 26, 1962], No. 28823/62. Heading H2B. An electric limit switch, with a switching member 1 actuated by an over-centre spring arrangement comprising a rocker lever 5 and a roller 3 loaded by a spring 18, and having locking pawls 7, 8 has an actuating arm 9, with abutment surfaces 17 rotatable with it, which engage end faces of the forked portion 16 of the lever 5 to rotate the lever and thus actuate the switch. The sides of the recess 15 in the lever 5 and the circular portion 14 of the boss 11 act as stop surfaces to limit the terminal positions of the lever 5 without limiting the rotation of the arm 9. A helical spring 21 encircles the boss 11, with its two ends 19, 20 straddling a dog 22 on the boss 11 and a stop 23 in the switch housing 24, to ensure that the lever 9 assumes a predetermined end position. In another embodiment, Fig. 2 (not shown), the centring spring arrangement on the actuating lever is modified so that it only becomes effective on excess movement of the lever. In addition the locking pawls are stepped and the over-centre spring-loaded roller is replaced by a flat-ended plunger so that switching member, at each change-over, is first moved to and held in a central, neutral position from which it may subsequently be moved by completion of the movement of the rocker lever. With this arrangement the actuating lever remains in whichever position it was last set.
Patent GB-160494-A (GB)
Title: Improvements in washers used on bib cocks in controlling the supply of water
IPC: F16K1/46
Filed: 1919-11-20
Abstract: 160,494. Hobbs, H. T., and Parry, H. M. Nov. 20, 1919. Closure members, simple lift or beat.-A washer for use with the usual lift valve jumper comprises a metal or other wear-resisting shield e interposed between the flexible washer g and the metal flange c of the jumper; the hole in the shield e is serrated or otherwise formed to engage the thread of the jumper stem d, and the shield is flanged at the periphery to enclose partially the flexible washer. A closed tubular extension h is formed on the washer to enclose the screwed stem of the jumper, and an internal construction is formed therein to engage the screw-threads of stem d.
Patent GB-1037348-A (GB)
Title: Polyamides and preparation thereof
IPC: C08J9/10
Filed: 1963-07-22
Abstract: A method of making a polyamide comprises polymerizing a lactam in the presence of a basic catalyst and (as co-catalyst) a compound of the formula R-CO-B, where R is an organic radical comprising a heterocyclic ring containing two double bonds and attached to the rest of the molecule by a ring nitrogen atom as shown by the formula <FORM:1037348/C3/1> and where B is -NR1R2 or -(A)x-CO-R1, where R1 and R2 are hydrogen atoms or aliphatic, cycloaliphatic or aryl radicals, A is a bivalent acyclic, alicyclic or aromatic radical, x is 0 or 1 and R1 is organic radical R, many suitable co-catalysts being specified.  Specified catalysts are the alkali and alkaline earth metals and basic derivatives thereof, e.g. sodium, potassium, lithium, magnesium, calcium and strontium hydroxide, lithium and sodium hydride, sodium methoxide, sodium methyl, sodium ethyl, sodium phenyl, sodium naphthyl and sodamide.  Specified lactams are pyrrolidone, piperidone, e -caprolactam, enantholactam, caprylolactam and mixtures thereof.
Patent GB-385056-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/00
Filed: 1931-10-20
Abstract: 385,056. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and PATTERSON, W. G., 68, Eltham Road, Lee, both in London. Oct. 20, 1931, No. 29117. Drawings to Specification. [Class 40 (iv).] A single-motion selector having two sets of wipers is provided with arrangements whereby a group of outlets may be divided into two sub-groups connected to the earlier part of the terminal row of one set of wipers and the later part of that of the second set of wipers, a wiper-switching operation taking place after an unsuccessful search in the first sub-group. The selector described is identical with the pre-final selector described in Specifications 378,585 (Figs. 9 and 10) and 378,586.
Patent GB-707785-A (GB)
Title: Improvements in respiratory apparatus
IPC: A62B23/00
Filed: 1951-12-13
Abstract: 707,785. Respirator filters. POELMAN, A J. J., and ETABLISSEMENTS R. SCHNEIDER. Dec. 13, 1951 [Dec. 14, 1950], No. 29178/51. Class 81(2) A union for use in respiratory apparatus comprises a box having a neck for the connection of a mask and one or more necks to receive the same number of purifying cartridges, perforated walls in the box delimiting a space for a charge of purifying material. The respirator is provided with a supplementary air purifying mass contained in a flat box 1 and bounded by concentric cylindrical perforated walls 4, 5. Necks 2 are provided in the flat faces of the box 1 for the reception of purifying cartridges A, A. Air for respiration passes through the cartridges A, A into the box 1 and after passing through a supplementary air purifying mass between the perforated walls 4, 5 flows. into a tube 7 leading to the respirator. A filling opening in the wall 5 and the box 1 is provided with a screwthreaded plug 9. Alternatively (not shown) a filling opening may be provided in the wall 5 opposite a connection 6 for the tube 7. Specification 527,226, [Group XXVIII], is referred to.
Patent GB-1462288-A (GB)
Title: Portable solid waste compactor
IPC: B30B9/30
Filed: 1974-07-02
Abstract: 1462288 Waste compactor P TASHMAN 2 July 1974 29233/74 Heading B8C [Also in Division F2] A waste compactor comprises a ram 37 which is vertically reciprocable by an electric drive to compact waste introduced from a shoot (98), Fig. 1 (not shown), and through an opening into a removable container dolly 12, a guard gate 111  which moves downwardly with the ram 37 to close the shoot opening during compaction, and a switch 123 which is sensitive to obstruction of the guard gate to cause reversal of downward ram movement. The guard gate 111 moves downwardly under the action of gravity, its movement being controlled by abutment of a member 114 carried by the gate 111 with a rocker lever 115 pivotally mounted on the ram 37. The switch 123 is operated by the rocker lever 115 to cause said reversal of the ram 37 upon the lever 115 and the member 114 becoming disengaged prior to the gate 111 reaching its full-closing position. The ram 37 is reciprocated by a screw-thread jack driven by an electric motor 58 through a series of pulleys. The jack, Fig. 5 (not shown) comprises a drive screw (48) journalled in a support plate 32 and engaged with a carrier sleeve member (67) which is secured within the upper end of a tubular rod 68. Guide lugs 71, 72 on the tubular rod 68 are engaged in slots (73, 74), Figs. 3 and 8 (not shown), is a fixed cylindrical sleeve 75 to constrain the rod 68 to vertical motion only. The compactor includes a control circuit which controls the operation of the compactor ram, prevents the operation of the compactor unless the dolly is properly positioned and indicates when the dolly is full of compacted waste.
Patent GB-261186-A (GB)
Title: Improvements in or relating to foot muffs
IPC: A61F7/08
Filed: 1925-11-19
Abstract: 261,186. Lawrence, A. M., (Representative of Lawrence, I. S.). Nov. 19, 1925. Foot-muffs.- A foot muff is arranged to accommodate the feet of of more than one person and has more than one entrance for 'the feet. As shown, a muff has a number of compartments 5 divided by stitching the layers together at 6. access to the various compartments being provided at the top edge. In another construction, the top and bottom layers of the muff, which is rectangular. are only sewn together at the corners leaving one large compartment for the feet with four openings. In a further construction, the muff is elongated and provided with openings side by side along its length. Both layers of the muff may be of thick warm material and the lower layer 3 may be of leather or other material capable of being moved easily on carpet.