baber/WOPTO huggingface dataset:
Patent GB-396828-A (GB)
Title: Improvements in apparatus for separating dust from coal or other materials
IPC: B07B4/04
Filed: 1932-02-19
Abstract: 396,828. Pneumatic separating. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and RAY, A., c/o Sneyd Collieries, Ltd., Burslem, Stoke-on-Trent. Feb. 19, 1932, No. 5026. [Class 117.] In apparatus for separating dust and small particles from granular materials such as coals of the kind in which the materials fall through one or more transversely moving air currents, the nozzle 8 by which the air current is directed against the falling material converges to a narrow slot and is divided by one or more plates into a plurality of separate sections with the object of delivering the air in a high velocity jet which is not easily deflected and at the same time is uniformly distributed. Alternatively, a number of nozzles may be arranged in a row. The material under treatment is delivered on to a shelf 7 and falls in front of the air nozzles under the retarding effect of a curtain of chains 9. One or more partition plates may be provided to divide the stream of material into sections. A number of shelves 12 receive the falling material to prevent breakage and deliver it to the hopper 11. The top plate 19 of the nozzle may be adjustably pivoted at 20 to permit variation of the width thereof. The separator is enclosed in a casing 1 connected to a suction pipe 10 which draws away a greater volume of air than enters through the nozzle 8 thereby inducing air into the separator through an auxiliary inlet 18 and at the feeding and discharging points.
Patent GB-820054-A (GB)
Title: Improvements in or relating to gas burner control systems
Inventor: BURKE PATRICK HERBERT
IPC: F27D99/00
Filed: 1956-03-17
Abstract: 820,054. Fluid-pressure servomotor-control systems. GAS COUNCIL. June 17, 1957 [March 17, 1956; Sept. 25, 1956], Nos. 5045/56 and 29290/56. Class 135. A gas burner control system wherein the or each burner 1 has an associated thermally controlled valve 9 in a bleed line 8 the gas supply to which is controlled by actuation of the main gas supply cock 2 associated with the burner, the valve closing when its thermal element 10 is heated by the burner or a pilot jet 6, each bleed line being connected to an automatic main supply cut-off valve 11 which closes with pressure increase in the line, and means preventing operation of the cut-off valve when the cock is first turned on. Gas from the governor 5 passes the weep 30 and acts over the whole of the lower side of diaphragm 25 to lift main valve 29 and weight 31 off its seat 28 to stops 32, the top of the diaphragm opening to atmosphere via passage 22. On opening cock 2 gas passes valve 9 and begins to lift a timing diaphragm 14 and attached valve 19 from an opening of passage 22, the air above the diaphragm escaping via a timing vent 15. Should the pilot burner 6 not light within a predetermined time, the valve 9 remains open, bleed gas fully raises diaphragm 14 and attached valve 21 closes passage 22 so that bleed gas passes through orifice 26 and closes valve 29. If the pilot burner lights, a bimetal 10 closes valve 9, gas beneath diaphragm 14 escapes via open valve 19 and diaphragm 14 falls. Cock 2 is then turned to adjust the main burner 1. In a modification, the timing diaphragm is dispensed with and the bleed line leads to the main diaphragm chamber 23 provided with an atmospheric vent. The cock handle is depressed to isolate the bleed line from the supply before opening the pilot and main burner pipes. Should the burners not light, the thermally controlled valve 9 remains open and, when the cock handle is released, bleed gas closes the main diaphragm valve 29. If the burners light, thermal valve 9 closes and the main valve remains open when the cock handle is released. The burner cannot be relighted until all main cocks are closed in order to build up pressure downstream of the automatic valve 11.
Patent GB-582448-A (GB)
Title: Improvements relating to the manufacture of synthetic resins
IPC: C08G8/20
Filed: 1944-03-17
Abstract: Permanently fusible dihydric-phenol-aldehyde resins are made by heating together a dihydric phenol and an aldehyde in the absence of an acidic or basic catalyst in the proportion of less than one mol. of aldehyde to one mol. of dihydric phenol, adding said catalyst when the preliminary condensation is substantially complete, continuing the heating, and dehydrating, e.g. to a water-content of less than 1 per cent, preferably .5-.75 per cent.  Phenols specified are resorcinol, hydroquinone and catechol, and a portion thereof may be replaced by phenol, cresylic acid, or other monohydric phenol, e.g. in an amount of 20-25 per cent.  Aldehydes specified are formaldehyde, propionaldehyde and furfuraldehyde.  In an example, formaldehyde solution is added gradually to resorcinol in a steam-heated vessel, and after the initial reaction has subsided, oxalic acid is added, refluxing is resumed for a short time, and water is then distilled off.  The preferred molecular ratio of formaldehyde to resorcinol is .9 : 1 and preferably greater than .5 : 1.  Other catalysts specified are hydrochloric, sulphuric, citric and tartaric acids, ammonium chloride, sodium and potassium hydroxides and carbonates, trisodium phosphate, triethanolamine, aniline, azoxy-toluidine, ethylenediamine.  The preferred amount of catalyst based on the weight of resorcinol is .1-.3 per cent if the resin is to be used for bonding abrasive articles, and .6 per cent for other purposes.  Hardening agents specified are hexamethylene tetramine, the oxymethylenes, para formaldehyde, polymethylol phenols and polymethylol melamines.  The products are used in the manufacture of laminated products from cloth, e.g. cotton, paper, asbestos, or wood, abrasive articles, moulded articles, cold-setting adhesives, coating compounds, impregnating and reinforcing compounds, and in the bonding of nylon, leather and synthetic rubber.
Patent GB-129595-A (GB)
Title: Improvements relating to Portable Electric Lamps.
IPC: F21L4/00
Filed: 1919-02-28
Abstract: 129,595. Dean, H., and Chloride Electrical Storage Co. Feb. 28, 1919. Battery lamps. - Springs j attached to the battery terminals are connected together by an insulating bar m carrying a metal plate n which can be depressed by a screw o adjacent to the handle c, to bring the springs j into contact with fixed terminals p to complete the circuit through the lamp l. The sides d, e of ,the hinged cover b are thicker than the case a as shown in Fig. 1 so that they bear upon the battery f and hold it in position.
Patent GB-229861-A (GB)
Title: Improvements relating to pump buckets
IPC: F04B53/12
Filed: 1924-02-28
Abstract: 229,861. Whittaker, J. Feb. 28, 1924. Buckets. - A pump bucket comprises a cupshaped member A open at the top for the insertion and removal of the valve B and provided at the bottom with an opening a<1> in which the valve seats. The valve carries a packing ring b and is of conical shape. The top of the bucket has two lugs a<2> in which the crosspin c of tha pump rod C is mounted. An extension c<1> of the pump rod serves as a stop for the valve.
Patent GB-710801-A (GB)
Title: Improvements in or relating to venting means for chambers of mixers or masticators
IPC: B29B7/84
Filed: 1952-02-27
Abstract: 710,801.  Mixing appliances. FARRELBIRMINGHAM CO., Inc. Feb. 27, 1952 [March 17, 1951], No. 5139/52. Class 86  A mixer for plastic materials comprises a chamber and rotor means within the chamber to act on the charge therein, the chamber having a charging opening and a closure member therefor which 'is provided wdth narrow elongated openings to permit escape of gas from the chamber. In Fig. 1 a rubber mixer comprises a pair of rotors 11, 12 which rotate in opposite directions within a chamber 10 having a charging stack 13 of generally rectangular form charged through a hopper 14, a closure member 15 being conneoted to a plunger 16 and piston 17 so that the closure member 15 may be raised to permit charging of the chamber through the stack. The closure member 15, Fig. 3, is a welded structure fabricated from a keel-shaped bottom member 21, end members 22, a side member 23 and a diagonal strut 24. Within the closure member 15 and at each end thereof, plates 28, 29 and 30 are secured by welding, and together with the end plates 22 form rectangular frames within which are clamped a plurality of bars 36 spaced apart to form elongated outwardly facing vent openings 37, Fig. 7. Each bar 36 is tapered in cross section and has spacing abutments 38, Fig. 6, formed thereon having cut away portions 39 which seat upon shoulders formed in the closuremember. The lower ends of the bars extend within close proximity to the tips of the rotors 11, 12 so that the bars are cleaned thereby. The closure member 15 is loosely connected to the plunger 16 and the lower portion 21 of the closure memlber fits snugly in the charging opening. whilst the side members 22 are outwardly tapered. thereby allowing rocking movement of the closure 'member in the opening which permits some additional escape of gas through the stack.
Patent GB-511516-A (GB)
Title: Improvements in and relating to thread cutting devices for automatic lathes
IPC: B23B7/02
Filed: 1938-02-18
Abstract: 511,516. Screwing. POLLAK, J. E. (Pittler Werkzeugmaschinenfabrik Akt.-Ges.). Feb 14, 1938, No. 5150. [Class 83 (iii)] A thread-cutting device for automatic lathes has a driving-pulley 10 connected directly to a friction clutch element 14 and indirectly to a second driving clutch element 21, these two clutch elements coacting selectively with inner and outer clutch faces on a driven clutch element slidably keyed to threading spindle 3 whereby the tool may be driven in the same direction as the work but at higher or lower speed for running the tool 2 on and off the work, 1. The spindle 3 is slidably keyed within a hollow tube 4 carried in front and rear ball bearings 7, 9 respectively. The front bearing is adjustable as described in Specification 439,158. The pulley 10, enclosing the bearing 9 is supported in ball bearings 11, 12 and has an integral sleeve 13 carrying the high-speed inner clutch member 14. The lower-speed clutch member 21, mounted in ball bearings 22 so that it may rotate on the sleeve 13, is driven from a gear 16 secured to the pulley through gearing 17 .. 20. The speed of the inner clutch member is preferably as much above the work speed as the speed of the outer clutch member is below it. The clutch members 14, 21 coact selectively with a driven member 23 secured to a sleeve 25 keyed to the tube 4 and actuated, as described in Specification 444,097, through a fork 29 connected by a slotted arm 31 to a spring-urged lever 33. When a right-hand thread is cut the high speed clutch is engaged and at the end of the threading operation a member 40 moving with the tool 2 actuates a lever 37 to separate the abutments 35, 36 and allow spring 38 to effect a quick change-over of the clutch to engage the low-speed clutch and run the tool off the work. At the end of the withdrawal the lever 33 is restored to change over the clutch by a cam on the cam drum 42. The movement of the tool spindle to and from the work is derived from control shaft 43 through a lever 44. For cutting a left-hand thread, the work is rotated as before but the low-speed clutch is engaged during cutting and the high-speed during run-off, the spring 38 and abutments 35, 36 being modified accordingly.
Patent GB-412524-A (GB)
Title: Improvements in and relating to the production of ladderproof knitted fabric on machines having spring needles
IPC: D04B1/06
Filed: 1934-02-16
Abstract: 412,524. Knitting. DOEHNER, L., 12, Kassbergstrasse, Chemnitz, Germany. Feb. 16, 1934, No. 5202. Convention date, March 2, 1933. [Class 74 (ii).] To produce the ladderproof fabric shown in Fig. 11 on machines using bearded needles a, such as the Cotton type, each course b of ordinary knitting is received in turn on instruments d, the points d<1> of which work in a groove a<1> in the needle stems. The ordinary groove for the beard point is lengthened for this purpose. The anti-laddering course e is sunk over the upper ends of the instruments and then received on the needle stems below the points d<1> while the course b gets under the beards. The course e, interlaced with the course b, is subsequently knocked over.
Patent GB-107370-A (GB)
Title: Improvements relating to Acid-proof Coating Compositions.
Inventor: TAMARI SHOSUKE
IPC: B65D85/84
Filed: 1917-04-13
Abstract: 107,370. Tamari, S. June 20, 1916, [Convention date]. Coating-compositions.-A coating-composition to be applied while melted to the inside of boxes, reinforced-concrete vessels, &c. to render them acidproof, consists of sulphur and graphite, to which may be added paraffin The Specification as open to inspection under Sect. 91 (3) (a) describes also an optional addition
Patent GB-764166-A (GB)
Title: Spray gun for atomizing liquids
IPC: B05B9/08
Filed: 1955-02-22
Abstract: 764,166. Reciprocating pumps. WAGNER, J., [trading as VERTRIEBSBES, Inc., WAGNER]. Feb. 22, 1955, No. 5306/55. Class 102(1) A spray gun comprises a vibrating armature electric motor actuating a piston 3, the return spring 32 of which is opposed by a leaf spring 16 connected to the armature 13 at 17 and having the end 16" in engagement with an adjustable cam 18 on a shaft 20 which carries a pointer 21, the angle of adjustment being indicated on a scale 22. A spring washer 19 frictionally holds the shaft 20 in position. A rubber buffer 15 is provided for the armature 13.
Patent GB-1124002-A (GB)
Title: Glass
IPC: C03C10/00
Filed: 1965-08-02
Abstract: A transparent low expansion crystallized glass-ceramic formed by in situ crystallization consists essentially of the following components in percentages by weight:-SiO2 56-70; Al2\O3 18-27; Li2\O 3.4-4.5; CaO 0-3; ZnO 0-2; B2\O3 0-4; TiO2 0-6; ZrO2 0-3 MgO 0-3; Na2\O 0-1; P2\O5 0-3 with the following limitations (SiO2 + Al2\O3) at least 82; (SiO2 + Al2\O3 + B2\O3 + P2\O5) 86-91; (CaO + MgO + ZnO + Na2\O) 2.5-6; (SiO2 + Al2\O3 + P2\O5 + Li2\O) no more than 93 and TiO2 + ZrO2 2-6; the ratio (CaO + MgO + ZnO + Na2\O + B2\O3) to Li2\O less than 2-4; the ratio SiO2 to Al2\O3 no more than 3.8, the predominant crystalline species being betaeucryptite and/or beta-spodumene and the crystals being of diameter less than 1/3 micron. The co-efficient of lineal thermal expansion is from - 10 to 10 x 10-7 per  DEG  C. (0-300 DEG  C.). The glass is cast into graphite crucibles to form telescope mirror blanks, the cooled body being removed and placed in a furnace for heat treatment to form the glass-ceramic.
Patent GB-810402-A (GB)
Title: Improvements in or relating to devices for maintaining the position of a travelling belt or the like
Inventor: LEIMER ALBERT
IPC: B65H23/038
Filed: 1957-02-15
Abstract: 810,402. Endless-belt conveyers. LEIMER, A., [trading as ERHARDT & LEIMER, OHG.]. Feb. 15, 1957, No. 5326/57. Class 78 (1). The position of a Fourdrinier wire or felt cloth b in a paper-making machine is maintained automatically by a correcting roller c mounted on a non-rotatable shaft one end of which is mounted on a vertical pivot c<SP>1</SP> and the other end of which carries a nut in threaded engagement with a spindle rotated by a servomotor d. The edges of the belt are contacted by feeler elements e and, if desired, by supplementary feeler elements e<SP>1</SP>. The end roller a supporting the belt drives a make-and-break switch f, or a rotatable member f<SP>1</SP>, in conformity with the speed of the belt. A fulger f<SP>2</SP> on the member f<SP>1</SP> momentarily closes the contacts f<SP>3</SP> when the belt has travelled a predetermined distance. The feeler elements e are connected with the switch f through the circuit g. A circuit g<SP>1</SP> may connect the feeler elements g, g<SP>1</SP> with a warning bell g<SP>2</SP>. The switch f is connected by lead h to a start-stop switch i which controls a reversing relay of the servomotor. A lead l connects the switch i to the switch m which controls the position of the roller c. The movable element m<SP>1</SP> of this switch is connected mechanically with the roller c and moves to and fro as the roller moves about the pivot c<SP>1</SP>. Contact studs m<SP>4</SP> are mounted adjustably on the rod m<SP>1</SP> and arranged to depress a contact lever m<SP>3</SP>. The spaces n, n<SP>1</SP>, n2 and n<SP>3</SP> decrease in length from the middle towards the ends. The deflection of the roller is limited by switches m<SP>6</SP> If the belt departs from the central position, it will contact a feeler e which will give, prepare or store a signal to move the belt by a certain amount. This signal will be accepted when the finger f<SP>2</SP> closes the contact f<SP>3</SP> and the amount of restoration will be determined by whichever stud m<SP>4</SP> happens to be in contact with the arm m<SP>3</SP> and by the distance between the stud and its neighbouring stud in the direction of movement of the rod m<SP>1</SP>. The movement is completed before the finger f<SP>2</SP> again closes the contact f<SP>3</SP>. If this movement is insufficient, the feeler is still actuated and further movement occurs.
Patent GB-892923-A (GB)
Title: Photoelectric control of photographic camera diaphragm aperture
IPC: G03B7/085
Filed: 1958-02-18
Abstract: 892,923. Photographic cameras. BELL & HOWELL CO. Feb. 18, 1959 [Feb. 21, 1958], No. 5577/59. Class 98(1). [Also in Group XL(b)] A variable camera exposure diaphragm aperture comprises slots 19, 20 in gears 17, 18 both driven by galvanometer 22 energized from a photo-cell 26 (see Group XL(b)) mounted in the view-finder with the greater part of the cell above the view-finder axis 32 to reduce the effect of light from the sky. To allow for differences in two types of colour film a perforated shutter 36 can be swung transversely to view-finder axis 32, see also Figs. 2 and 3 (neither shown).
Patent GB-123213-A (GB)
Title: Improvements in Hose Reels.
Inventor: MONTGOMERY BEAUCHAMP HENRY
IPC: B65H75/24
Filed: 1918-04-02
Abstract: 123,213. Montgomery, B. H., and Dingwall, J. B. B. April 2, 1918. Reels and reel-carriages.-A hose reel is mounted on an extensible support so that the reel may be packed away into a receptacle or recess when not in use. The construction is such that the water can be turned on while the hose is wound on the reel. As shown, the reel 1 is mounted on a hollow trunnion 9 which is secured to a T-piece 10 on a hollow supporting arm 2 journaled in cross bars 7 carried by a pair of lazytong lever systems 3 pivoted at their upper ends to fixed pivots 5, and at their lower ends to vertically guided pivots 6. The reel is shown in Fig. 2 in its extended position, and in this position it can be moved about the T-piece 10 as a vertical pivot, and can rotate around the trunnion 9. The hose passes round bars 16 which are normally pressed outwards by springs, but when the water is turned on with the hose wound up these bars can move inwards in slots against the action of these springs. The water passes from a main 20, controlled by a valve, via a flexible pipe 19 connected by an elbow joint 18 to the T-piece 10. The water then passes through a rotatable but watertight spigot joint formed of a screwed tube 12 which screws into the T-piece 10 and is formed with a flange 11. The flange is fitted with packing on both sides, which is compressed by a flanged screw ring 13 which screws on the trunnion 9. A connexion pipe 14, shaped as shown to return through the side of the reel and to terminate substantially tangentially adjacent to the inner edge of the reel, receives the hose, and drain cocks 21, 22, are provided in the tube 2, and in the pipe 14 respectively. A handle 8 is provided for moving the reel in and out of its casing.
Patent GB-148738-A (GB)
Title: Improved process for the manufacture of artificial tanning substances
IPC: C14C3/08
Filed: 1920-02-25
Abstract: The alkali-soluble portion of anthracene oil or soft pitch is sulphonated by means of sulphuric acid; the products constitute tanning-agents.
Patent GB-1284443-A (GB)
Title: A combination of a panel and clips for attaching a frame thereto
Inventor: GARNER PAUL JOHNSON
IPC: B62D29/00
Filed: 1969-02-03
Abstract: 1284443 Motor vehicle bodies IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Jan 1970 [3 Feb 1969] 5715/69 Heading B7B [Also in Division E2] A motor vehicle body panel 1 of a thermoplastic material has a plurality of clips 3 for attaching a reinforcing frame 2 to said panel. Each clip has a base 7 and, integrally moulded therewith, arms 8, 9 to grip a component of said frame, each of said clips being releasably engageable with the panel by means of a projection 13 having a wider upper portion than its base and a co-operating groove along which the projection can slide, the projection being moulded on the base of the clip, Fig. 4, and the co-operating groove in said panel or the projection being moulded on said panel, Fig. 3, and the co-operating groove in the base of said clip, the groove being transverse to the axis of said frame component where it is gripped by the clip. Each arm of each clip is provided with a lug and associated with each clip is a transverse locking member 12 which is engageable with the lugs to prevent the clip opening. In each of the embodiments shown each projection and groove is dove-tail shaped, but in a modification each projection and groove is T-shaped.
Patent GB-326640-A (GB)
Title: Improvements in and connected with rotary measuring and feeding devices for the hopper structures of mechanical stokers
IPC: F23K3/00
Filed: 1929-02-21
Abstract: 326,640. Hodgkinson, A. Feb. 21, 1929. Fuel, feeding.-A rotary pocketed feeder for supplying fuel from a hopper to a mechanical stoker of the " sprinkler " type, is constructed in two halves or units 1, 2, each formed with inclined pockets a and a circumferential flange a' at one end, the units being threaded on an operating-shaft b so that one of the flanges a<1> is centrally disposed and prevents travel of the fuel along the pockets a from one end of the feeder to the other.