baber/WOPTO huggingface dataset:
Patent GB-297305-A (GB)
Title: Method of and apparatus for feeding water to boilers
IPC: F22D5/14
Filed: 1927-11-16
Abstract: 297,305. Northern Equipment Co., (Assignees of Veenschoten, V. V.). Sept. 17. 1927, [Convention date]. Feedwater, supplying and controlling, - The feedwater valve 24 is controlled by thermostats 10, 35 in such a manner as to maintain the inflow of water equal to the outflow of steam except when. the water level in the boiler varies from a predetermined elevation, when the inflow is controlled so as to oppose the change in elevation. The valve ports are of parabolic shape so that increase of flow is proportional to the square root of the contraction of the thermostatic tube. The upper end of the thermostatic tube 10 is connected by a pipe 13 to the main steam pipe 26, which is provided with an adjustable restriction 25, and its lower end is connected by a pipe 16 to the water space of the boiler. Thus the level of water in the tube 10 depends upon the flow of steam in the pipe 26 and contraction of the tube due to increased flow raises, through a link 66, Fig. 2, a lever 17 pivoted at 15 which, through a rod 18 and lever 19, opens the feedwater valve 24. The second thermostatic tube 35 is connected by pipes 38, 39 to the steam space and water space of the boiler and its free end 40 is linked at 42 to a bell-crank lever 41 pivoted at 43 and carrying the pivot 15 of the lever 17. Contraction of the tube 35 on, rise of water level in the boiler raises the pivot 15 so that the lever 17 is rocked to close the valve 24. Adjustment of the lever 17 with respect to the thermostat 10 is permitted by a slot 68 in the forked end 67 of the lever 17 into which takes a bolt 69 passing through the link 66. Similarly, the pivot 42 of the thermostat 35 can be adjusted by a block slidable in the forked end of the arm 71 of the bell-crank lever 41. In a modification, Fig. 6, the thermostatic tube 51 giving the regulation in accordance with the steam flow is connected by pipes 54, 56 with opposite sides of an adjustable orifice 53 in the steam pipe 52. To maintain a water column in the tube 51 the pipes 54 are arranged below the pipe 52 so that condensed water will fill these pipes, and a casing 60 may be provided to ensure a sufficient supply of water. Instead of using a restricted orifice 25 or 53 the thermostat may be connected between remote points in the steam system or on opposite sides of a superheater. Specifications 15169/12, 225,898, and 297,306 are referred to.
Patent GB-1360495-A (GB)
Title: Method and apparatus for measuring small electric currents
IPC: G01R19/00
Filed: 1971-07-01
Abstract: 1360495 Measuring current PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 July 1971 [4 July 1970] 30870/71 Heading G1U [Also in Division H1] In order to measure very small currents, e.g. 10<SP>-13</SP>A, the current is caused to flow between the cathode 1 and a control grid 2 (which may be a dynode) of a photo-multiplier tube and the anode current through the tube is indicated 18. In a first embodiment the cathode is subjected to a constant intensity of illumination (which may be zero), but in a second embodiment, Fig.3, the intensity of the illumination from a diode 21, is varied rectroactively by the output from the tube in such a way that although the cathode - grid current varies (being equal to the current to be measured) the cathode-grid potential remains constant so that the time constant of the system is substantially zero (without the feedback, a change in unknown current will cause a change in cathode-grid potential, necessitating a change in the charge distribution on the cathode and grid, which, with a low conductance current source may take a long time, typically 10<SP>3</SP> seconds). In modifications the feedback is achieved either by varying the potential applied to an auxiliary electrode 22, Fig. 5 (not shown) deposited on the outside of the tube near the cathode, or by direct variation of the cathode potential Fig.6 (not shown). In further modifications the current source can be connected between the control grid and earth Fig.2 (not shown) or if the full gain of the photo-multiplier is not required, the current to be measured can be injected at one of the dynodes Fig.7 (not shown).
Patent GB-1493848-A (GB)
Title: Aryltetralins
IPC: C07C217/38
Filed: 1975-07-24
Abstract: 1493848 Aryltetralins BEECHAM GROUP Ltd 22 July 1976 [24 July 1975] 30923/75 Heading C2C Compounds of the general formula (R 1  = optionally substituted phenyl or naphthyl; R 2  = CH 2 CH 2 NR 5 R 6  or CH 2 CH(OR 7 )CH 2 NR 5 R 6 ; R 3,4  = H or C 1-4  alkyl; R 5  = H or C 1-6  alkyl; R 6  = H, C 1-6  alkyl, phenyl, tolyl or benzyl, or NR 5 R 6  = 5-7 membered ring; R 7  = H, or is joined to R 5  to form part of a morpholine ring; X=CO, CHOH, CHCl, C=CR 8 R 9 , CR 10 OH or CHR 10 ; R 8,9  = H or C 1-4  alkyl; R 10  = C 1-4  alkyl) and their salts are prepared by standard methods, e.g. etherification of the corresponding phenol or conversion of the latter to the oxiranylmethyl ether followed by treatment with R 5 R 6 NH. A benzyl group may be removed, and a keto group may be reduced to CHOH optionally followed by chlorination, or the compound may be treated with a Wittig reagent or organometallic compound optionally followed by reduction in each case. The product may be isolated as a salt. The phenols in which X = CO are prepared by reacting the appropriate aromatic aldehyde and succinic anhydride followed by esterification, reaction with anisole (AlCl 3 ), hydrolysis, ring closure (PPA) and demethylation. The methyl ether may alternatively be prepared by acylating anisole (AlCl 3 ) followed by reaction with triethyl phosphonoacetate, hydrogenation (Pd/C), conversion of the resulting ethyl-3-aryl-3-(pmethoxyphenyl) propionate to the corresponding butanoic acid and ring closure (CH 3 SO 3 H/P 2 O 5 ), followed by introduction of any 2-alkyl group(s). The above compounds are antidepressants and anorectics, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-618089-A (GB)
Title: Improvements in or relating to garments having elastic bands
IPC: A41F9/02
Filed: 1946-10-18
Abstract: 618,089. Supporting bands for garments. HARDIE, H. Oct. 18, 1946, No. 31019. Convention date, Oct. 20, 1945. [Class 141] A modification of the supporting band for 'a garment described in Specification 385,892 comprises a strip of sheet rubber 6 which lies between the inner side of the upper edge 7 of the garment and the inner side 5 of the fabric sheath 2. The upper row 10 of extensible stitching anchors the rubber strip 6 to both sides of the sheath 2 and to the garment fabric, the lower row 11 extending through the garment fabric and the hem 4 only. The garment and the sheath may be of stretchable or unstretchable fabric, shirring being necessary in the latter instance.
Patent GB-290517-A (GB)
Title: Improvements in and relating to anti-dazzle devices
IPC: F21V17/04
Filed: 1927-11-18
Abstract: 290,517. Machines, R. C. Nov. 18, 1927. Vehicle and like lamps. -An anti-dazzle device of the kind comprising a reflecting shield shaped to conform with the lamp bulb a and clipped on to the lamp cap comprises a spoon-like concave part e, adapted to screen the direct forward and downward rays connected by a narrow portion k passing on the under side of the bulb to a semicircular part m grooved to tale a spring clip n embracing the cap b. The shield is made of thin sheet metal, preferably aluminium, and the connecting portion k may be adjustable in length to fit different sized bulbs. Perforations may be provided in the lower front portion of the shield to illuminate the road directly in front of the vehicle. The shield may be attached to the lamp socket instead of to the lamp cap, and may have a matt interior surface.
Patent GB-647832-A (GB)
Title: Improved electro magnetic brake or clutch
IPC: F16D13/20
Filed: 1947-11-24
Abstract: 647,832. Friction clutches. DUYCK, G. Nov. 24, 1947, No. 31085. Convention date, Nov. 23, 1946. [Class 80(ii)] [Also in Group XXXIV] An electromagnetic clutch comprises a shaft 12 carrying an annulus 13 on which is freely mounted an electromagnet 15 energized from brushes 16. The driven shaft 17 carries a plate 18 forming an armature for the magnet 15 and a drum 22. The magnet 15 carries a pin 19 connected to one end of the flexible band 21 whilst the other end of the band is connected by pin 20 to the plate 13 rigid with the shaft 12. Energizing the electromagnet 15 will cause band 21 to contact the inner surface of drum 22 and thus drive shaft 17. The band 21 may comprise more than one turn.
Patent GB-245584-A (GB)
Title: Improvements in the manufacture and production of quinizarin
IPC: C09B1/08
Filed: 1924-12-29
Abstract: 245,584. Dodd, H., Sprent, W. C., and United Alkali Co., Ltd. Dec. 29, 1924. Quinizarin is obtained by heating o-ehlorphenal or a mixture of o- and p-chlorphenol at temperatures above 200‹ C. with phthalic anhydride. and boric acid dissolved in sulphuric acid. The product is isolated by pouring the reaction mass into water.
Patent GB-416207-A (GB)
Title: Improvements in or relating to boots, more particularly for sporting purposes
IPC: A43C11/00
Filed: 1933-11-09
Abstract: 416,207. Boots &c. EHRLICH, L., 41, Sulzbacherstrasse, Nuremberg, Germany. Nov. 9, 1933, Nos. 31294, 31295, and 31296. Convention dates, Nov. 9, 1932, Feb. 17, 1933, and March 4, 1933. [Class 17 (ii).] A boot, particularly for sporting purposes especially for ski-ing, has a watertight closure for the upper consisting of two overlapping flaps c, d, Fig. 6, on the leg portion which are fastened together, the strap c<1> on the inner flap c being at its root of the full width of the flap and passing between the lining h and upper a through a slot h<1> of suitable width and out through a slot i to the outside of the upper to be secured to the flap d. An additional and independent securing strap passing over the instep may connect the outer flap to the heel. A felt insertion g may be tightened around the leg closure of the boot. Fig. 11 shows a similar but modified construction wherein the closure flaps c<2>, d<1> are at the front of the boot and additional independent straps l<2>, l<8> engage buckles m<11>, m on the outer flap d<1>.
Patent GB-1115816-A (GB)
Title: Electrochemical machining method and apparatus therefor
IPC: B23H3/00
Filed: 1965-07-22
Abstract: <PICT:1115816/C6-C7/1> A method of machining a workpiece electrochemically comprises positioning the uninsulated operating face of an electrolytic tool in closely spaced and substantially parallel relation to the surface of the workpiece and effecting relative feed movement between the tool and the workpiece in a direction substantially parallel to the surface of the workpiece, the rate of erosion of the workpiece being thus dependant upon the magnitude of the current flowing between the tool and workpiece, the rate of feed movement between the tool and workpiece and the length of the tool.  Different depths of erosion across the width of the workpiece may be obtained by use of a tool having a varying distance between leading and trailing edges, Fig. 6a (not shown). The tool shown comprises head 91 and a shank 92 for machining a workpiece having two intersecting flat surfaces 97a, 97b to be machined.  The tool shank comprises a conducting tool body 93 and an insulating jacket 94. Electrolyte is passed from the inlet tube 42 and via the vertical passage 95 to the workface.  The workpiece is mounted upon a table 11 covered by insulating pad 30 Fig. 1 (not shown), the table being connected by a horizontal screw 14 and gears 15, 16 to an electric motor 17, which may be controlled to impart a required speed of horizontal movement to the table 11, and hence to the workpiece. Figs. 4a, 4b (not shown) illustrate electrical circuitry suitable for controlling the current density such that should the feed rate vary, the current density applied is automatically varied to compensate therefor, and to maintain a constant rate of erosion.  The current density may be varied according to a predetermined pattern, e.g. by means of a cam Fig. 13 (not shown) or a data input device.  In another embodiment Figs. 7-11 (not shown) two electrode tools of arcuate workface are used to machine annular workpieces.  The workpiece 124 is rotated between the tools, which are positioned 180 degrees apart. Electrical circuitry Figs. 12a, b, c (not shown) is described by means of which the two tools may be moved automatically radially inwards to compensate for erosion of the workpiece, and thereby maintain the current density between tool and workpiece constant.
Patent GB-175042-A (GB)
Title: Improvements in and relating to pipe cutting apparatus and the like
IPC: B23D21/10
Filed: 1920-11-06
Abstract: 175,042. Broadbent, P., and Broadbent, H. Nov. 6, 1920. Portable turning-apparatus.-In apparatus for cutting pipes or cutting out lead &c. packing from pipe joints, of the kind in which the cutters are carried by holders rotatable in a ring frame secured around the pipe, the cutters being fed automatically by the engagement of a fixed projection with star wheels on the cutter feed-screws, a ring 6, Fig. 1, guided on a flange 8 on a ring frame 1 secured to the pipe 3, carries one or more boxes 14 in which is a slidable and non- rotatable sleeve 19. Fixed to the sleeve 19 is the cutter 15 which is operated to feed the cutter by a screw 16 carrying a star wheel 17, adapted to engage a fixed projection 18 at each revolution of the ring 6. This ring is driven by a pinion 10 engaging peripheral teeth on the ring but in a modification the ring may be provided with ratchet teeth to be engaged by a pawl on a pivoted hand lever. In the joint removing tool shown in Fig. 4, one or more boxes 26 each carrying a cutter 28, operated similarly to the cutters 15 of Fig. 1, is adjustable radially of the pipe by being secured to a slidable sleeve 30 fixed by a screw 32. The projection 36 for operating the star wheel 35 is correspondingly adjustable, being secured to a plate 37 having an angular slot engaging a pair of fixed pins. To allow the cutter to adjust itself to irregularities of curvature of the pipe joint, the sleeve 30 may be controlled by an adjustable spring 40, the screw 32 being: slackened back. Reference has been directed by the Comptroller to Specifications 640/77, 17864/87, 17605/97, and 1031/02.
Patent GB-153591-A (GB)
Title: Improvements in method of raising the specific gravity and flash points of liquid fuel
Filed: 1920-11-09
Abstract: To liquid fuels are added very finely pulverized carbonaceous substances heavier than water so that the flash point and specific gravity are raised sufficiently to render safe the heating of the composite to a temperature at which it can be atomized, and to render storable under water or, in case of fire, extinguishable by water. According to the Specification as open to inspection under Sect. 91 (3) (a) the stability of the composite may be increased by raising the viscosity of the liquid, by addition of calcium resinate or a peptizer such as coal tar, creosote, naphthalene, water gas tar, or "solvent naphtha tar," or by emulsifying with a liquid hydrocarbon immiscible with the first.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specification 149,306.
Patent GB-1462287-A (GB)
Title: Homogenous compositions prepared from dimercaptothiadiazoles
IPC: C10N40/25
Filed: 1974-07-17
Abstract: 1462287 Lubricating compositions LUBRIZOL CORP 17 July 1974 [19 July 1973 9 April 1974 16 May 1974] 31696/74 Heading C5F A lubricant additive is obtained by mixing at least one oil-soluble dispersant and at least one dimercaptothiadazole and heating the mixture at above 100‹ C. until it is capable of forming a homogeneous blend with an oleaginous liquid of lubricating viscosity. Preferably 2, 5-dimercapto-1, 3, 4-thiadiazole is employed. Suitable oil-soluble dispersants are (1) reaction products of carboxylic acids with amines, phenols, alcohols or basic inorganic materials; (2) reaction products of aliphatic or alicyclic halides with amines; (3) reaction products of alkyl phenols with aldehydes and amines (Mannich dispersants); (4) products obtained by treating (1), (2) or (3) with urea, thiourea, CS 2 , aldehydes, ketones, carboxylic acids, hydrocarbyl succinic anhydrides, nitriles, epoxides, boron compounds, or phosphorus compounds; (5) copolymers of decyl methacrylate, vinyl decyl ether of a high M.W. olefin with monomers containing polar substituents e.g. aminoalkyl acrylates, aminoalkyl acrylamides or poly (oxyalkylene) substituted alkyl acrylates. The oleaginous liquid is preferably a mineral oil, but may also be a fatty oil or a synthetic oil, many types of which are listed. Conventional detergents, dispersants, antioxidants, pour point depressants, extreme pressure agents, colour stabilizers and antifoam agents may also be present and extensively listed.
Patent GB-782688-A (GB)
Title: Improvements relating to alloys of high magnetic permeability
Inventor: RICHARDS COLBERT ERIC
IPC: C22C19/00
Filed: 1954-11-02
Abstract: Thin magnetic nickel-iron alloy strip is made by sintering a metal powder mixture containing .Ni.70 - 82 per cent .Fe.10 - 20 per cent .Mo.0 - 10 per cent .Cu.0 - 15 per cent .Mn.0 - 5 per cent and thereafter forming the product into strip not exceeding 0.004 inch thick the amounts of the common impurities in such alloys being restricted to the following maxima .C.0.01 per cent .Si.0.015 per cent .S.0.005 per cent .N.0.005 per cent .O.0.005 per cent .Mg.0.005 per cent Pb, Sn and Zn may also be present in amounts up to 0.003 per cent.  To attain the desired purity the Ni and Fe constituents may be produced from the carbonyls, the Mo by reduction of its oxide and the Cu may be of the oxygen-free high-conductivity grade.  The powder may be compacted under a pressure of about 35 tons/sq. in., heated in a reducing atmosphere, e.g. of hydrogen or cracked ammonia, at 500-600 DEG C., and then sintered at 1200-1350 DEG C. for 4 hours.  The resulting body is then hot-forged and cold-rolled to desired thickness.  Alternatively the hot-forging is omitted and a heat treatment at 1200-1350 DEG C. in hydrogen substituted.  Cold-rolling takes place in stages with intermediate anneals in a reducing atmosphere.
Patent GB-774477-A (GB)
Title: Improvements in or relating to means for igniting an electric discharge tube fed from a source of radio-frequency excitation
IPC: H05B41/24
Filed: 1951-01-12
Abstract: 774,477. Supply systems for space discharge tubes. TOUVET, G. Jan. 12, 1951, No. 31710/55. Divided out of 774,471. Class 38 (4). In a circuit embodying a source of R.F. voltage applied to a luminescent discharge tube 1 in which the discharge passes between internal electrodes which are heated by the discharge without preheating, starting of the discharge when the tube is cold is facilitated by the provision of an anti-resonant circuit 18 shunted across the tube, the circuit 18 offering a high impedance at the frequency of the voltage source and being disconnected automatically as soon as the tube becomes operative. As shown, the circuit 18 is disconnected by the contacts of a relay 19 whose coil is energized by the lamp discharge current. Specification 774,475 is referred to.
Patent GB-317677-A (GB)
Title: Improvements in thermostatically controlled valves
IPC: G05D16/18
Filed: 1928-11-01
Abstract: 317,677. Cameron, T. H. Nov. 1, 1928. Thermostats. - A snap-action device is incorporated in the actuating-mechanism of a thermostatically operated valve controlling the supply of gas to the burners of a water - boiler etc. Fig. 1 shows the invention applied to a valve operated by a thermostat of the capsule type. The valve member 5 is moved vertically by a forked rocking lever 9, this being carried by a transverse pin 10 fitted between the walls of the valve casing. The snap-action is obtained by causing a cam 11, fitted to the end of the rooking lever, to bear against a roller 13 carried by a spring being compressed until the lever has moved through the neutral point, following which it forces the plunger outwards and moves the rocking lever 9 rapidly. The capsule-type thermostat 19, containing a volatile liquid, is housed in a cup 20 located in a water passage 18 in connection with the boiler. The movement of the thermostat is transmitted to the valve-actuating lever through a rod 21 and actuating member 22 which is fitted between, and engages, the two pivoted multiplying levers 27, these in turn engaging with a pin 29 fitted between the forked arms of the rocking lever 9. A small amount of lost motion is provided between the lever 27 and 9. A spring 30 bears lightly against the valve member to ensure that it will move only when positively operated. In a modification shown in Fig. 3, the rod 40 of a rod-and-tube-type thermostat operates a similar rocking lever 35 through a system of multiplying-levers and links housed in the valve casing, but in this instance the valve member is actuated by a forked lever 31 hinged to the front of the casing. The snap-action device is similar to that previously described. The lost motion occurs between the actuating-member 38 and the transverse pin 34 carried by the rocking lever. The pin 34 is extended on one side to engage a fork 33 (Fig. 5) formed on one arm of the valve-actuating lever, the other arm carrying a roller 47 which bears against a locating spring 48.
Patent GB-1279281-A (GB)
Title: Collapsible cellular box partitions and method of continuous manufacture
IPC: B65D6/16
Filed: 1969-06-24
Abstract: 1279281 A collapsible cellular partition unitmaking machine UNION CAMP CORP 24 June 1968 [24 June 1968] 31900/69 Heading B5D [Also in Division B8] In a machine for continuously making a collapsible cellular partition unit 1 comprising two spaced flexible sheets 2, 3 and a plurality of webs 4 secured therebetween, webs 4 are drawn and formed from a roll 24 and slitting mechanism 25, scored at 26 along lines 6, 8 to form a U-shape (Fig. 8) or a Z-shape to form flaps 5, 7, and turned to travel parallel to and be enveloped between sheets 2, 3 by a draw 29, sheets 2, 3 being each drawn from a roll 19, 20, scored at 22 along lines 11, 14, 15 to form end walls 13, 10 and flaps 12 and coated with adhesive lines 9 at 28. After the draw 29 which presses together sheets 2, 3 via flaps 12 and glue lines 9 and which presses each web 4 to sheets 2, 3 via flaps 5, 7, the secured webs and sheets travel to a cut-off 30 that chops off individual units 1 which are delivered by pinch rolls 31 to a turning drum 32 where glue lines (16, Figs. 3, 4) are applied to the exterior surface of sheet 2 and/or sheet 3 by means 34 and each unit 1 is passed to a station 35 where the required number of units 1 are superimposed so that adjacent sheets 2, 3 of separate units 1 may be bonded together (37, Fig. 7) with each upper unit offset one cell from its lower unit (Figs. 4, 5, 9) to form an integral collapsible partition. A partitioned box may be formed by securing a collapsed unit(s) to a box blank (38, Fig. 9) having adhesive lines thereon.
Patent GB-1358673-A (GB)
Title: Tool-holder
IPC: B23Q3/157
Filed: 1972-09-22
Abstract: 1358673 Tool holders WERKZEUGMASCHINENFABRIK OERLIKON - BUHRLE AG 22 Sept 1972 [1 Oct 1971] 32068/73 Divided out of 1358672 Heading B3B A tool holder 1 has a conical taper shank, and a circular disc-shaped flange 2 on which are formed grooves 3, 4, 5, in the peripheral outer edge thereof, disposed so that their common cross-sectional plane of symmetry is perpendicular or substantially perpendicular to the toolholder axis and wherein three such slots are provided and are arranged so that their respective bottom walls form parts of the sides of an isosceles triangle. The three slots are engaged by a tool gripper of a tool changer device described in the parent Specification 1,358,672.