baber/WOPTO huggingface dataset:
Patent GB-1359766-A (GB)
Title: Devices for holding workpieces of revolution on centreless grinders
IPC: B24B5/307
Filed: 1972-04-21
Abstract: 1359766 Grinding SOC NOUVELLE DE ROULEMENTS 21 April 1972 [30 April 1971] 18617/72 Heading B3D A device for holding a workpiece of revolution 1 on a centreless grinding machine comprises a bearing face 3 against which the workpiece is urged axially, and a pair of radial bearing shoes 4, 5 which are offset angularly, one 5 of the shoes receiving the radial thrust from the grinding wheel 2 and being responsive to resilient thrust means acting against the radial thrust. The workpiece is urged against the bearing face 3 by magnetic or mechanial pressure and bears on the shoes 4, 5 which are rockable about pivots 6 through a small angular distance. The shoe 5 is carried by a piston 7 slidable in a cylinder 8 through a distance determined by an abutment member 12 and an adjustable stop 13, the cylinder being supplied with compressed air through a regulator 11 and pipe 10. A rod 16 attached to the piston extends through the cylinder end wall 15 and coacts with a control device 17 having a pair of switches for signalling the forward and rear positions of the piston. The air pressure is adjusted so that, during normal feed, the piston, and hence shoe 5, are in a forward position. If an irregularity occurs in the feed, the shoe can move back against the air pressure. The switches indicate the position of the piston and may be arranged to stop the grinding operation if excessive pressure occurs between the wheel and workpiece. A similar embodiment is used during internal grinding of a workpiece.
Patent GB-380854-A (GB)
Title: Improvements relating to the filling of milk cans or churns
IPC: A01J11/00
Filed: 1931-06-29
Abstract: 380,854. Dairy plant; filling milk churns ; cooling milk. KNOX, J. R., 7, Brunswick Hill, Reading, and GASCOIGNE, G. H., Queensmere, Wokingham, both in Berkshire. June 29, 1931, No. 18690. [Class 84.] In order to fill a plurality of milk churns simultaneously and equally from a single milk cooler 1, thus ens u ri n g uniform distribution o f butter fat into the churns, the trough 3 of the cooler is provided with a plurality of nozzles 5 each provided with a flexible pipe 6 having a free end and offering an unobstructed passage for the milk. The nozzles 5 are preferably situated close to one another and may be carried by or formed integrally with a plate 4 applied to the side or bottom of the trough. In order that a head of milk may accumulate in the trough before filling starts, the nozzles may be situated above the lowest part of the trough, may project upwards into the trough, or may be provided with a slightly restricted outlet.
Patent GB-187153-A (GB)
Abstract: 187,153. Strathern, A. G., and Neilson, R. M. Nov. 10, 1921. Hand knitting-appliances.-A needle is provided with a removable head d of indiarubber &c. which may fit over the fixed knob c or over a pointed extension m thereof, when not in use, or a knob k may fit in a cavity h of the needle. The head d has an axial cavity e which can be received on the pointed end or other part of the shaft of the needle to retain the work thereon.
Patent GB-757297-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F01L23/00
Filed: 1953-12-02
Abstract: 757,297. Reciprocating pumps. TRICO PRODUCTS CORPORATION. Dec. 2, 1953 [Dec. 3, 1952], No. 18720/55. Divided out of 757,231. Drawings to Specification. Class 102(1). The subject matter of this Specification is substantially the same as that described in Specification 757,231, but the claims differ.
Patent GB-796568-A (GB)
Title: Improved cotton or like opener
IPC: D01G9/00
Filed: 1956-06-18
Abstract: 796,568. Opening and cleaning fibres. DODD INVESTMENTS, Ltd., RUSCA, R A,. and YOUNG, R. C. June 18, 1956 [July 27, 1955], No. 18773/56. Class 120(1) In a cotton or like opening machine of the type having a horizontal belt conveyer 2, Fig. 1, leading to toothed opened cylinders 3 arranged in a wall-like series rising from and curving back towards belt 2, cylinders 3 and belt 2 being rotated in the same direction so as to produce a rotating mass of fibres from which cylinders 3 continuously extract thin layers, the thin layers are stripped from cylinders 3 by a series of lickerin-type beater cylinders 7 which buffet them across the bars 8 of a grid section. Trash collecting beneath bars 8 in chambers 9 is removed by spiral conveyers 10. The cleaned fibres is doffed from cylinders 7 by doffers 13 into suction flue ducts 14. Cylinders 3 and 7 are "positivelytoothed" (i.e. have teeth with forward faces inclined towards the direction of rotation; cylinders 13 and a "kicker" cylinder 4 are "negatively-toothed". Belt 2 and cylinders 3, 7 and 13 have progressively increasing surface speeds. In a modification, two large beater cylinders are provided, each co-operating with two cylinders 3; a second beater cylinder 12, with grid bars above, may be interposed between a large beater cylinder 11 and the doffer. The cover section 5 of the machine has a perforate liner 15 and a trash-removing spiral conveyer 17 is provided in the space between.
Patent GB-214890-A (GB)
Title: Improvements in or relating to chimney and ventilating shaft tops
IPC: F23L17/02
Filed: 1923-07-21
Abstract: 214,890. Parkes, W. H. July 21, 1923. Addition to 211,378. Chimney and ventilating-shaft tops.--A chimney &c. top 1 is provided with updraught inducing units 2 as described and claimed in the parent Specification and is supported by brackets 10, on the upper end of a tubular member 9 attached to the shaft 8, an annular space 11 being left between the parts 1, 9. An open-ended conical liner 12 is secured at its upper and larger end around the top of the part 1 and depends into the member 9 to provide an annular outlet 13. In the case of a ventilating-shaft top a conical weather cover is provided.
Patent GB-1085810-A (GB)
Title: Gravity separation of particulate material
Inventor: WALSH TERENCE
IPC: B03B5/40
Filed: 1964-05-06
Abstract: 1,085,810. Sink-float apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 4, 1965 [May 6, 1964], No. 18878/ 64. Heading B2H. Particulate material, e.g. mineral ore, is separated by a medium consisting of particles suspended in a gas or liquid, the separated fractions consisting of sinks and floats together with an admix of particles of the medium being sifted on leaving the separating zone and the particles of the medium so sifted out recirculated to the separating zone at a rate controlled by the specific gravity in the separating zone so as to maintain the effective specific gravity at the desired value. As shown, air is used to form a fluidised bed and is supplied to a porous table 2 through a pipe-line 5 and individually-controlled chambers 2A. The material to be separated is fed through a hopper 7 and the recirculated particles of the medium fed into the bed through a mixer 6. The sinks are carried by vibration of the table to a screen 11 and the floats are discharged over an adjustable weir 3 to a screen 14, a further screen 8 being provided to prevent the movement of floats towards the screen 11. The particles of the medium which pass through the screens 11, 14 pass into receptacles 13h, 131 whence they are returned to the mixer 6 by air lifts 16. The flow of air to the lifts is adjusted by valves 18 which may be operated either automatically by use of a controller 17 and sensing device 4 or manually according to a reading of the sensing device. When the medium consists of a slurry of particles kept suspended in a liquid by vibration or agitation, the particles may be recirculated by means of a conveyor belt or helical feeder. The particles of the medium employed may be, for example, ferrosilicon, barytes, magnetite, copper powder lead powder.
Patent GB-633012-A (GB)
Title: Improvements in or relating to flexible abrasive articles
IPC: B24D11/00
Filed: 1947-07-16
Abstract: A composition for impregnating the cloth backing of a flexible abrasive article contains 14 parts by weight of a vinyl chloride-acetate copolymer, 27 of litharge, 2 of carbon black, and 42 of methyl-amyl ketone.
Patent GB-223538-A (GB)
Title: Improvements in metallic spools for photographic or like films
IPC: G03B17/30
Filed: 1924-08-09
Abstract: 223,538. PathÚ Cinema, Anciens Etablissements PathÚ FrÞres. Oct, 16. 1923, [Convention date]. Roll-spools. - A metallic spool for photographic or like films is formed from a blank 1, Fig. 1, and end flanges 3, 4, Fig. 7. The flanges have slots 5, Fig. 5, for the tongues 2 and stamped up projections 6 under which the tongues 2 are bent, the projecting parts being then pressed into the body of the flange to form a flush surface. The part between the projections 6 and slots 5 may be slightly recessed for the tongues 2. The part 1a is pressed up from the blank 1 and a slot 11 is formed by pressing inwards a tongue portion 11<a>, Fig. 8, so that the centre of the core in section will be as shown in Fig. 8 and a channel through slots 10, 11 formed for threading the films 9. The flanges have openings 8, and one of them has bent up lugs 8<a>, Fig. 9, forming a bearing surface for the winding key.
Patent GB-186022-A (GB)
Title: Improvements in furnace grates
IPC: F23H13/00
Filed: 1921-04-12
Abstract: 186,022. Shenton, R. April 12, 1921. Firebars and grates.-A furnace grate consists of three rocking-bars A of semicircular cross-section interposed between fixed wing bars B<1> and wedge-shaped bars B. The rocking-bars are ribbed transversely over their length except for a plain stiffening portion A<1> at the middle, and the ribs fit in between teeth in the fixed bars. Each rocking-bar has a long spindle at the door end of the furnace, supported in bearings beneath the dead-plate, and having a squared end for engagement with a key, which is inserted through an opening in the front normally closed by a cover-plate.
Patent GB-206888-A (GB)
Title: A soluble tar, bituminous, asphaltic or oleaginous compound for use on roads, paths and suchlike, and process for producing the same
IPC: C08L95/00
Filed: 1922-07-11
Abstract: 206,888. Murphy, T. July 11, 1922. No Patent granted (Sealing fee not paid). Emulsions, making.-A product suitable as a binder in road making &c. consists of a bitumenclay paste miscible with water. Bitumen which is semi-fluid at ordinary temperatures or which has been made so by the addition of about 25 per cent of flux oil while melted is mixed cold with a clay paste consisting of approximately equal parts of dry clay and water, suitable proportions being 60 parts of 'bitumen to 40 parts of clay paste. Reference has been directed by the Comptroller to Specification 9838/15, [Class 22, Cements &c.]-
Patent GB-1038605-A (GB)
Title: Process for preparing 2-methoxy-3, 6-dichlorobenzoic acid and product thereof
Inventor: ROBIN ALLEN MORISE
IPC: C08J9/02
Filed: 1965-05-05
Abstract: 2 - Methoxy - 3,6 - dichlorobenzoic acid is prepared by a method comprising reacting 3,6-dichlorosalicylic acid with methyl chloride in an aqueous medium which has a pH higher than 10.  The pH of the solution may be brought to the desired pH by adding a hydroxide or carbonate of an alkali metal or alkaline earth metal. The required acid is then produced partly as a metal salt and partly as a methyl ester which is hydrolysed by heating with additional base.  The free acid may then be obtained from the salt by acidification, preferably with a mineral acid.
Patent GB-222252-A (GB)
Title: Improvements in the manufacture of twist-lace
IPC: D04C1/08
Filed: 1923-07-25
Abstract: 222,252. Pollard, J. July 25, 1923. Lace.-Tucks or welts B disposed in staggered or other formation are produced on a plain or ornamental flat ground A by dividing the work into alternate sections C, D and drawing the warp and other bar threads in the sections C from a beam or thread supply which is entirely independent of the supply for the corresponding threads serving the section D. A row of tucks or welts is produced on the sections C by putting the work take-up mechanism out of action, and at the same time putting out of action all the warp and other bar controlled threads in the sections D. When sufficient fabric to form the tucks has been made production of the ground A is resumed on all sections by putting the take-up and the warp &c. threads into action. Subsequently a row of tucks is made on the sections D in the same way, if the staggered formation shown is desired.
Patent GB-1187595-A (GB)
Title: Improvements in or relating to Integrated Circuits
IPC: H01L49/02
Filed: 1967-04-26
Abstract: 1,187,595. Semi-conductor devices; electric component assemblies. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 26 April, 1967 [27 April, 1966], No. 19119/67. Headings H1K and H1R. [Also in Division G3] An integrated circuit formed on a base of thermally conductive material is provided with a heating element and a temperature-sensitive component both mounted on the base and connected so that the component controls the current through the heating element to maintain the temperature of the base substantially constant. The integrated circuit may be of the thick or thin film type or may be a monolithic semi-conductor element. In an embodiment, Fig. 1 (not shown), comprising a thick-film circuit on one side of a thermally-conductive substrate, the heating element is deposited on the underside of the substrate so as to cover nearly the whole surface. The temperature-sensitive component comprises a diode applied to the top of the substrate and forming one arm of a bridge circuit, the output of which is applied to a differential amplifier which controls the current flowing through the heating element to maintain the temperature of the substrate constant, Fig. 2 (not shown). The resistors forming the other three arms of the bridge together with the differential amplifier can be formed on the component side of the substrate as an integrated circuit. The whole device may be surrounded by thermal lagging material.
Patent GB-682721-A (GB)
Title: Improvements in exchange floors for distillation columns and gas washers
IPC: B01D3/22
Filed: 1950-07-31
Abstract: 682,721. Treating gases with liquids. SUIDA, H. July 31, 1950 [Aug. 16, 1949 ; Aug. 25, 1949 ; Feb. 4, 1950 ; June 7, 1950], No. 19128/50. Class 55 (ii). In a distillation column or gas washer wherein gas or vapour is passed upwardly through bodies of liquid carried on superimposed, perforated trays, the perforations in the trays are in the form of slots which are arranged in radial rows and so shaped that the gas or vapour flows through them tangentially to the tray axis and at a small angle to its surface, thus imparting to the liquid on each tray a uniform, outwardly directed, spiral rotation. Fig. 8 shows two trays of the column. Each consists of a metal disc having radial rows of slots therein, arranged and formed as shown in Figs. 1 and 2. The disc is surrounded by a weir w which retains a body of liquid thereon. The excess liquid overflowing into a trough r and draining through tubes a into a central container h on the tray below, from which it overflows to supply that tray. The gas or vapour passing up through the trays causes the liquid on each to rotate in a spiral and thus to move across each tray from the inner to the outer weir.
Patent GB-802785-A (GB)
Title: Improvements in or relating to combined venting and overpressure release valves
Inventor: WITTENBERG EDWARD HENRY
IPC: F16K24/00
Filed: 1955-07-01
Abstract: 802,785. Pressure relieving devices for fluids; valves. NATIONAL PRESTO INDUSTRIES, Inc. July 1, 1955, No. 19147/55. Class 135. A combine venting and pressure relief valve for pressure cookers and similar pressure vessels comprises a spool member 14 mounted with clearance in an aperture 12 in the wall 10 of the pressure vessel and having upper and lower end flanges 18, 20 disposed outside and inside the vessel respectively, the flanges being spaced apart a distance greater than the thickness of the wall 10 to permit limited vertical movement of the spool member the lower flange of which is flexible so that the spool member may be ejected from the aperture when the pressure in the vessel exceeds a predetermined value. As shown in Fig. 1, the complete spool is made of a heat-resistant resilient material. The central portion 16 of the spool has projecting portions 22 adapted to engage the wall of the aperture 12 and intermediate portions 24. The top flange 18 has axially projecting portions 26 on its under side positioned opposite the projecting portions 22. The portions 26 are separated by recessed portions 28. Before heating commences, the upper flange 18 rests by the projecting portions 26 on the wall 10 and air may escape from the vessel past the portions 24, 28. As pressure develops in the vessel however the smooth top surface 30 of the lower flange 20 seals against the lower face of the wall 10 and remains so sealed until cooling starts or an excessive pressure arises in the vessel. Upon cooling the spool falls and air is admitted past the portions 24, 28 to destroy any vacuum in the vessel. In a modification the central portion 16 is formed with radical slots extending into the lower surface of the upper flange 18 and with a part spherical recess in its base. A metallic weight may be embedded in the spool member to ensure adequate venting of air. In another embodiment, Fig. 9, suitable for a vessel having a wall 61 of appreciable thickness, the spool 64 has a stem 66 of less diameter than a bore 62 in the wall 61 and the bore 62 has a counterbore 63 to receive the lower flange 70 of the spool. The natural irregularities in the lower surface of the upper flange 68 and the top of the wall 61 permit the egress and ingress of air. The spool 64 also has a central bore 71 in which is loosely accommodated the stem 76 of a metallic spool 74 having upper and lower flanges 78, 80 the lower flange being constituted as a weight and having a convex upper surface adapted to seal against the wall of a concave recess 72 in the spool. The natural irregularities in the surface of the flange 78 enable air to flow through bore 71 when the flange 78 is seated as shown. In a further modification, the spool A74 co-operates with a resilient annular disc arranged loosely between flanges in the cover or wall of the pressure vessel. U.S.A. Specification 2,429,149 is referred to.
Patent GB-683619-A (GB)
Title: Improvements in or relating to tiled fireplaces
IPC: F24B1/191
Filed: 1949-07-21
Abstract: 683,619. Domestic fireplaces. MASTERMAN, A. W., and WRIGHT, G. A. July 17, 1950 [July 21, 1949], No. 19196/49. Class 126 A tile surround for an all-tiled grate has a baffle part integral with the surround, which projects rearwardly from its front wall at or near the upper edge of the fireplace opening and extends at least from one side to the other of the opening and is of such width that it projects rearwardly to the same extent as the top shelf and side walls of the tile surround. The tile surround which has a top shelf 4 and side walls 5 is fixed close up to the outer surface of the wall 7 and a fireback 1 is fitted behind the surround against the rear of the front wall 13 and any space between the fireback 1 and the rear wall of the chimney passage is filled in. A baffle part 21, which is integral with the tile surround, bridges the gap between the front wall 13 of the surround and the front wall 7 of the chimney opening. The baffle 21 extends from one side wall 5 to the other and is level with the upper edge of the fire place opening. An inclined part 22 may be provided over the fire to assist in guiding the smoke to the chimney. The space between the top-shelf 4 and the baffle 21 may be completely filled, Fig. 3 (not shown).
Patent GB-1078584-A (GB)
Title: Cosmetic devices
IPC: A45D40/28
Filed: 1966-05-02
Abstract: 1,078,584. Cosmetic brushes. J. AVERSA. May 2, 1966, No. 19224/66. Heading A4K. [Also in Divisions B6 and B8] In a cosmetic brush or crayon applicator, rim 28 of cover cap 26 engages a projection 24 and moves the tip 7 into the extended position. The metallic cap 26 is frictionally retained, on metal casing 1, by ribs (29) and, on removal, compression spring 13 returns the tip 7 of the retracted position. The slider 21 is formed of thermosetting butyrate, polystyrene or nylon.
Patent GB-1174245-A (GB)
Title: Electrically Controlled Braking Apparatus
Inventor: MASKERY ARTHUR
IPC: B60L7/24
Filed: 1967-04-26
Abstract: 1,174,245. Magnetic amplifiers; transistor amplifiers. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 11 April, 1968 [26 April, 1967], No. 19234/67. Headings 113B and H3T. [Also in Divisions F2 and G1] Magnetic amplifiers. Summing circuits.-In a vehicle braking system the control signals are summed in an auto-self-excited, full-waverectifying, transductor with a step-functioncharacteristic to take up the slack in the brakes between coasting and a brake application. As shown, Fig. 3, the transductor is provided with summing control windings 108, 109, 110, bias winding 111, and negative feedback winding 112. The step-function is produced by applying the command signal on line 24 to winding 108 and to a transistor 124 which cuts off at a predetermined value to cause a small change in the bias through winding 111. Constant current circuit, Fig. 3.-The output of the summing transductor at the top of Fig. 3 is applied to a further self-excited transductor 140 to provide selected control currents (according to the command signal) which are independent of normal variations in load but limited during traction. The transductor comprises a current, feedback winding 147, bias winding 148, control windings 149 and current limiting winding 150 feed from resistor 156 through Zener limit " diode 155, and diode 158 so that it is only effective during traction. Transistor amplifiers, Fig. 2c.-A D.C. coupled transistor amplifier 68, 71, 74 has overall negative feedback via capacitor 79 and resistor 80. D.C. stabilization is provided via resistor 81. A similar amplifier is depicted in Fig. 2b (not shown). Limited rate-of-change signal. Fig. 46.-In a jerk-control-circuit to limit the rate of braking or acceleration of a vehicle, the control signal is applied to a small capacitor 221 and a larger capacitor 233a is charged or discharged to the same value through transistors 228, 229. When the rate of change of signal on capacitor 221 exceeds the rate of change on capacitor 233a, one of the diodes 223 or 225 in the bridge 223 ... 6 blocks so that the charge or discharge rate is determined by transistor 228 ... 9.
Patent GB-705812-A (GB)
Title: Method of heating steel slugs for forging or extrusion
IPC: F27D3/00
Filed: 1952-07-30
Abstract: 705,812. Forging. UNITED STATES STEEL CORPORATION. July 30, 1952 [Aug. 13, 1951], No. 19236/52. Class 83 (4). [Also in Group XII] A method of heating steel billets comprises the steps of welding a metal stud to one end of a billet, suspending the  billet by the stud and passing the billet while so suspended through a heating -zone and heating it therein to a temperature suitable for forging or extrusion. As shownin Fig. 4 the billet 10 is supported by a hook 13 which engages the head of the stud 11.