baber/WOPTO huggingface dataset:
Patent GB-738927-A (GB)
Title: Improvements in or relating to dropper closures
IPC: B01L3/02
Filed: 1953-09-22
Abstract: 738,927. Pipette-dropper stoppers. SAVARY, A. Sept. 22, 1953 [Sept. 26, 1952], No. 26145/53. Class 125(1). A closure dropper assembly comprises a top wall 10 having an annular skirt 11 both formed integrally from rigid material, a dome shaped flexible and impervious cap 17 engaged in sealing relationship round the outer wall of the shirt 11 and spaced from the top wall 10 and a tubular pipette member 20 integral with the top wall 10, whose end 30 may be initially sealed, depending from an aperture in the top wall 10, means, e.g. a screw thread 12 being provided on the skirt 11 for attachment to seal a container. An annular flange 14 preferably serrated on its outer wall 19 extends outwardly from the lower edge of the skirt 11 to from a seat for the dome shaped cap 17. The pipette 20 may be graduated. The top wall 10 may taper downwardly towards the centre aperture 21.
Patent GB-709560-A (GB)
Title: Process for the production of low boiling hydrocarbons in the catalytic hydrogenation of carbon monoxide
IPC: C07C1/06
Filed: 1950-10-26
Abstract: Liquid hydrocarbons boiling up to 200 DEG  C. are produced by contacting a gas containing 0.5-2, preferably 1.5 volumes CO to 1 volume H2, with a granular iron catalyst containing not more than 1 per cent of alkali metal, particularly potassium compound (calculated as oxide) based on the total weight of iron, at 160-350 DEG  C., 2-150, preferably 9-25 atm., and a space velocity of 30-3000 vols./vol./hour, in the presence of aliphatic hydrocarbons boiling above 200 DEG  C. and liquid under the process conditions, the temperature and pressure being so correlated that said hydrocarbons are cracked.  The catalyst may be suspended in the hydrocarbons or completely covered therewith or the latter sprayed over the catalyst. Paraffins and olefins of natural or synthetic origin may be used, particularly high boiling or solid products of carbon monoxide hydrogenation, for example products of the process boiling above 200 DEG  C.  Exit gases may be recycled in a ratio of 1-10 vols. per vol. of fresh feed.  In examples: (1) a suspension of oxidic iron catalyst, promoted with copper and potassium, in paraffins boiling at 300-330 DEG  C., is charged with CO and H2 in a ratio of 3 : 2 and at a space velocity of 180 into a pressure reactor at 270 DEG  C. and 11 atm.; (2) the synthesis gas is fed into the catalyst suspension at a space velocity of 300 under the same reaction conditions, the volume of the suspension being maintained by adding synthesis hydrocarbons boiling at 290-330 DEG  C.; (3) synthesis gas is fed downwards through an oxidic iron catalyst promoted with copper, aluminium and potassium of 3 mm. size, together with liquid hydrocarbons which trickle over the catalyst.  The non-converted hydrocarbons, together with synthesis products boiling above 200 DEG  C., were recycled as was part of the exit gas.
Patent GB-1077043-A (GB)
Title: Fluid depth indicator
IPC: G01F23/24
Filed: 1964-06-24
Abstract: 1,077,043. Locating the surface of a liquid. TRANS-SONICS Inc. June 24, 1964 [June 26, 1963], No. 26199/64. Heading G4H. Apparatus for locating the surface of a liquid comprises thermo-electric junctions or thermistors arranged at different depths in the liquid so that the net thermo-electric voltage developed alternates between first and second voltages as the level of the liquid rises or descends. In one embodiment (Fig. 1, not shown) the thermoelectric potentials of successive junctions are of opposite polarity so that when none of the junctions are covered by liquid a zero output is obtained, when one of the junctions is covered, the output voltage rises and when two junctions are covered and the output voltage again drops to zero. The junctions are preferably heated since the liquid removes heat from an immersed junction more rapidly than the atmosphere above the liquid removes heat from a non- immersed junction. In the embodiment of Fig. 4 a plurality of stacks of thermo-electric junctions 50, 52, 54, 56 formed from two metals A, B are arranged so that the outputs from the stacks give a Gray code representation of the level of the liquid. The outputs are connected to quantizers 76 which may be for example Schmitt triggers to give a " 1 " output when the input voltage is above a certain level and a " O " output when the voltage falls below this level. The quantizers are also fed with biasing voltages to allow for the variation in heating current fed to the stacks from a transformer 22. The outputs from the quantizers are fed to a Gray's binary to pure binary converter and also to an analogue converter the output of which is indicated by a meter 80.
Patent GB-878691-A (GB)
Title: Improvements in or relating to flat bar knitting machines
Inventor: BURNS JOHN HUT
IPC: D04B7/26
Filed: 1957-08-20
Abstract: 878,691. Knitting-machines. CO-OPERTIVE WHOLESALE SOCIETY Ltd. May 8, 1958 [Aug. 20, 1957], No. 26210/57. Class 74 (2). Intarsia work can be knitted on a flat machine in which each yarn carrier is raised in its end positions so that others may pass underneath. Each yarn guide carrier comprises a back plate 10 mounted on a slide bar. On the front of the back plate 10 is slidably mounted a cam bar 22 having a downwardly directed U-shaped cam 23 at its centre. Pivotally mounted on the back plate 10 are bell-crank levers 25, 26. Stud 20 is attached to the upper end of the yarn guide 14a which is slidable in arm 14. Before the carrier reaches its end position, the end of the cam bar 22 engages stop block 31, causing sliding movement of the cam bar 22 from a central position relative to the back plate 10. At the same time catch 32 is lifted by cam 29 and drops behind catch 24 locking the cam bar. Cam 23 moves to the right, actuating lever 26 to raise stud 20 and with it yarn guide 14a. For driving the yarn carriers to produce intarsia work there is provided on at least one guide rail a transfer mechanism having tracks which are so located as to co-operate alternatively with a leading selector and a trailing selector carried in housings on a cam box. The cams and selectors are so operated as to move a yarn guide over part of its travel within the edges of the fabric being knitted and to displace the guide out of alignment with independent thread guides which travel over the remainder of the width of the fabric. There is also provided a feed screw located parallel and adjacent the front carrier rail, on which there are mounted movable blocks capable of being intermittently traversed by rotation of the screw to define the limits between which an intarsia panel can be knitted.
Patent GB-535817-A (GB)
Title: Refrigerant evaporators
IPC: F25B39/02
Filed: 1939-09-20
Abstract: 535,817. Refrigerating. BUENSOD-STACEY AIR CONDITIONING Inc. Sept. 20, 1939, No. 26256. Convention date, Sept. 30, 1938. [Class 29] Evaporators of the shell and tube type are constructed to facilitate the wetting by liquid refrigerant of the outer surfaces of the layers of tubes conveying brine &c. to be cooled, the liquid refrigerant supplied through conduits 13a, 13b being injected through openings 12 in a bottom plate 23 into the pool of refrigerant confined in the lower part of the shell between blanking-off side plates 24. As the liquid evaporates its vapour acts as a gas lift to raise and scatter the liquid. The tubes are preferably assembled in separate banks 26, 27, each bank being divided by a middle partition 16 formed in one with a bottom plate 32 and side plate 33. The banks have spaced apart inner side plates 35, and the tubes are provided with common plate fins 15 closely spaced. Pressure-equalizing pipes 25 are provided for the blanked-off spaces. An interceptor baffle device 53 is located above the tube banks towards the rear end of the banks. The shell is provided with feet 21 and may carry supports 22 for a condenser &c.
Patent GB-1239954-A (GB)
Title: Improvements in "method for making" silicon hydrides
IPC: C07F7/08
Filed: 1968-05-31
Abstract: 1,239,954. Organosilicon hydrides. GENERAL ELECTRIC CO. 31 May, 1968 [1 June, 1967], No. 26258/68. Addition to 1,099,072. Heading C3S. Organosilicon hydrides are prepared by reacting an alkali metal hydride with an organohalosilane of the formula R a SiH b X 4-a-b  or a bis-(halosilyl) hydrocarbon ofthe formula X 3-c-d H c R d SiR<SP>1</SP>SiR e H f -X 3-e-f  in the presence of an alkyl aluminium halide. In the formulµ, R is a monovalent hydrocarbon or halohydrocarbon radical other than the radicals having at least 3 carbon atoms specified in the parent Specification, R<SP>1</SP> is a divalent hydrocarbon radical, X is halogen, a is. 1 to 3, b, c, d, e and f are each 0 to 2, a+b is 1 to 3, c+d is 0 to 2 and e+f is 0 to 2. Specified R radicals are Me, Et, vinyl, propenyl and allyl. The examples describe the preparation of 1,8-bis-(silyl) octane, 1,2-bis-(silyl) ethane, methyl silane, 1,4-bis- (dimethylsilyl) benzene and 1,4-bis-(silyl) butane.
Patent GB-1382550-A (GB)
Title: Sheet stacking apparatus for a duplicating machine or the like
IPC: B65H43/00
Filed: 1973-06-01
Abstract: 1382550 Stacking and feeding sheets A B DICK CO 1 June 1973 [6 June 1972] 26313/73 Heading B8R Lithographic master sheets are fed from a machine which produces them along a guide 40, Fig. 3, belts 45, a guide 90, Figs. 3 and 8, and by rollers 95, 96 and 99, 100 to a more slowly operating machine for making copies from them. When a sheet is being copied on a drum 101, the following sheet is held back by a stop 105, and while the trailing end of the following sheet is still between the rollers 95, 96, a third sheet comes to rest with its leading end against the nip of the rollers, which cannot accept two sheets together. The trailing end of the third sheet, and of further sheets, is moved upwards by belts 72, Figs. 2 and 3, so that a stack of sheets is formed with their trailing ends lying along the upper part of a sloping plate 57 and adjustable extension plate 85, part of the upper face of each sheet contacting part of the lower face of the preceding sheet. Side guides 75, 76 are adjustable for sheet width. When a sheet has moved clear of the rollers 95, 96, what is now the top sheet of the stack is removed therefrom and fed by the rollers 95, 96 to the stop 105. A motor for driving the roller 95 is energized when a sheet passes over a sensor switch 48 and deenergized when it depresses a feeler arm 104. When a processed sheet is ejected from the drum 101, the stop 105 moves to allow the next sheet to be fed to the drum by the rollers 99, 100.
Patent GB-1125154-A (GB)
Title: 2-styrylazole optical brightener
Inventor: OKUBU ICHIRO
IPC: D06L4/60
Filed: 1965-06-22
Abstract: 1,125,154. Substituted benzoxazoles, benzthiazoles and benztriazoles. MITSUI KAGAKU KOGYO K.K. 22 June, 1965, No. 26419/65. Heading C2C. [Also in Divisions C4, C5 and D1] The invention comprises compounds of the general formula in which A represents a benzene, naphthalene or acenaphthene group fused to the 1,2,3-triazole ring, with the provisos that when A represents a benzene group it is substituted by at least one alkyl group of 1-4 carbon atoms or alkoxy group of 1-4 carbon atoms, that when A represents a naphthalene group it is fused at its 1,2 positions with the triazole ring and that when A represents an acenaphthene group it is fused at its 4,5 positions with the triazole ring; R 1  represents hydrogen, chlorine or methyl; R 2  and R 3 , which may be the same or different, represent hydrogen, chlorine, bromine, fluorine, an alkyl group of 1-8 carbon atoms, an alkoxy group of 1-4 carbon atoms, phenyl or cyclohexyl, or R 2  and R 3  may together form a tetramethylene group attached to 2 adjacent carbon atoms of the benzene ring; and X represents oxygen or sulphur. The compounds may be prepared: (a) by diazotizing a compound of the formula coupling the diazo compound formed with naphthylamine, aminoacenaphthene or aniline whose benzene ring is substituted by at least one alkyl group of 1-4 carbon atoms or alkoxy group of 1-4 carbon atoms, to form an oaminoazo compound of the formula and thereafter oxidatively ring-closing the compound; (b) by heating a compound of the formula with a compound of the formula giving the product directly, or with a compound of the formula to give a compound of the formula followed by reduction of this compound; or (c) by condensing a compound of the formula with a compound of the formula
Patent GB-322262-A (GB)
Title: Improvements in or relating to light signals for controlling railway and other traffic
IPC: B61L5/18
Filed: 1928-09-15
Abstract: 322,262. British Power Railway Signal Co., Ltd., and Irving, E. C. Sept. 15, 1928. Plug couplings.- In a multi-colour electric light signal for railways and other traffic, means are provided for ensuring that the internal, or external, control wires can be connected only to the correct lamp or lamp terminal and that interchangeability is impossible. These means may consist of interengaging sockets and plugs of different shape, or plates with differently shaped holes to engage over correspondingly shaped terminal pins. In the form shown, a terminal board 5 for a four-aspect signal is provided with pairs of differently-shaped sockets 21, 24, 25, 26, adapted to receive correspondingly-shaped plugs 22. The sockets are preferably formed in metal inserts 27 which are embedded in the board 5 when the latter is being moulded from insulating material, and the plugs may be locked in position by means of screws 28.
Patent GB-797789-A (GB)
Title: Arrangement for producing packaging bags
IPC: B31B160/10
Filed: 1956-08-30
Abstract: 797,789. Making paper and like bags. HESSER MASCHINENFABRIKEN -AKT.- GES. Aug. 30, 1956 [Sept. 10, 1955], No. 26533/56. Class 94(2). In a machine for the production of rectangular bags, e.g., lining bags, from a flat web of heat sealable material the bags B are conducted by means of jaws a in a direction substantially perpendicular to the longitudinal axis of the folding mandrel 7 so that the open end of a bag is brought in front of the end face of the mandrel and transferred to a gripper 9 on the mandrel which draws the bag on to the mandrel. In the embodiment shown, two strips S of heat sealable material are joined together at the longitudinal edge 4 facing away from the folding mandrel 7 by heat sealing. The width of the web is approximately that of height of the ultimate flat bag B increased by the width of the bottom seam 1b. A series of adjoining transverse sealing strips or seams 1a and 1c are formed on the web by heat sealing so that the web is then composed of a continuous plurality of bags B which are open at one side. The web 1 is forwarded in a direction perpendicular to the longitudinal axis of the mandrel 7 so that the edge 2 of the tube facing the folding mandrel is spaced from the end face of the mandrel 7 by an amount equal to the width of the seam 1b which will ultimately form the bottom seam of the bag. The leading bag B is held below the sealing seam 1a by means of a pair of jaws a which move rectilinearly at right angles to the longitudinal axis of the folding mandrel so that this bag can be severed and then advanced in the direction of arrow n to mandrel 7. Now the jaws b engage the bag B at the bottom seam 1b and move towards mandrel 7 which has moved into its transfer position, after the jaws a have opened and released the bag B and are returning to engage the next leading bag. After lateral suction devices 8 have opened the unsealed mouth of the bag B in front of the end face of the mandrel and grippers 9 on the mandrel 7 have engaged the margins of the bag on either side at the edge 2, these grippers 9, together with the jaws b move in the direction of arrow r thereby drawing the bag onto the mandrel. In a modification, Figs. 5 to 8 (not shown) the tube 1 is formed from a single strip of material which is folded over in half along the middle line of its width and the halves brought together to form a strip of double thickness so that bottom closure is formed without heat sealing. In a further modification, Fig. 10, individual flat bags B are withdrawn from a magazine 12 and presented to the mandrel 7 by an oscillating gripper arm C. The side seams 1a, 1c are bent over by slides 15, Fig. 11, on the jaws b operated by cams 15d against springs 15b.
Patent GB-297334-A (GB)
Title: Adjustable grooving or milling tool
IPC: B23D61/02
Filed: 1928-09-17
Abstract: 297,334. Morthier, W., (Assignee of Morthier, H.). Sept. 17, 1927, [Convention date]. Milling-cutters.-A cutter comprises two complementary symmetrical segmental elements 1, 2 which are axially adjustable so as to occupy either the same plane or two parallel planes so that grooves of different widths may be machined. In one construction, the elements are formed with hubs, screw-threaded to engage right and left-hand threads 14, 15, Fig. 8, on a sleeve 13. The cutting elements are formed with roughing out teeth 16, 17. The cutters are provided with rearwardly directed chip-clearing grooves near their peripheries.
Patent GB-1427534-A (GB)
Title: Apparatus for selectively machining or pressing parts
IPC: B23H1/00
Filed: 1973-06-05
Abstract: 1427534 Spark-erosion GUSTAV HESSMERT KG 5 June 1973 [29 June 1972] 26677/73 Heading B3V An apparatus for either spark-eroding or pressing together two workpiece parts 24, 26 comprises first and second workpiece supports 4, 14 movable towards each other for pressing the two parts 24, 26 together and a third movable support 28 to which the part 26 may be transferred from the second support 14 without loss of alignment with the other part 24 to enable the two parts 24, 26 to be spark-eroded. One of the workpieces 24 is clamped by clamps 20 to a workpiece carrier 4 comprising a dielectric trough having side walls 64 pivotable about hinges 66. The other workpiece 26 can be either clamped by insulating clamps 40 to a workpiece carrier 28 which is connected to a spark-erosion head 34, or alternatively clamped by clamps 22 to a workpiece carrier 14 when the workpieces 24, 26 are to be pressed together for ascertaining by means of pigment on the parts 24, 26 at which points material has still to be removed. For this pressing operation, the workpiece carrier 4 is vertically movable in guides 6 by hydraulic cylinders 8, 10 coupled to the carrier 4 via releasable devices 12. The clamps 22, 40 can be fixed in a selected position by screws 52, 54. To enable inspection of and removal of material from the workpieces 24, 26, the workpiece carrier 14 is pivotable by an hydraulic cylinder (16), (Fig. 5, not shown) to a position outside the frame 2 of the apparatus and the workpiece carrier 4 is movable sideways along horizontal rails 58 after releasing the devices 12 and raising the guides 6 by a device 60. The workpiece carrier 14 may be movable.
Patent GB-245704-A (GB)
Title: Improvements in or relating to diaphragms for telephone instruments
IPC: H04R7/14
Filed: 1925-10-24
Abstract: 245,704. Mackintosh, E. V., and French, C. Oct. 24, 1925. Diaphragms; loudspeakers. - A conical diaphragm for use as a loud speaker and of the kind which is clamped at the periphery, is made of light material reinforced by the application of material of the same or different character in the form of strips, applied to the surface of the diaphragm for the purpose of adding rigidity thereto. The conical paper &c. diaphragm 1 is connected at 2 to the reed or armature 3 and has its edge fixed at 1<a> to a cardboard &c. cylinder 4 mounted on the back 5 of a case a, so that the back 5, cylinder, diaphragm and magnet system can be removed en bloc from the case. The diaphragm is reinforced by radial and substantially concentric strips 6 of cane or bamboo in the manner described in Specification 230,552. The edge of the diaphragm may be glued to the cylinder 4 or may be clamped thereto at intervals by any suitable detachable or permanent clamping means. The front of the case a has an opening b which may be covered by an ornamental fret as indicated in dotted lines. The cylinder 4 may, however, be used without an external case.
Patent GB-678385-A (GB)
Title: Improvements in positional control systems
Inventor: BELSEY FREDERICK HAROLD
IPC: G05D3/14
Filed: 1949-10-18
Abstract: 678,385. Electric control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 25, 1950. [Oct. 18, 1949] No. 26772/49. Class 40 (i). In a follow-up position control system in which coarse and fine selsyn receivers 2 and 1 are geared together and coupled in series via amplifier 7 to a servomotor which is controlled in accordance with the algebraic sum of the receiver output voltages, the output voltage from the fine receiver 1 is limited by the shunt connected rectifier 10 and 12, which are biassed by polarising batteries 9 and 11 of such a magnitude that the resultant control signal is always co-phasal with the course signal. In a modification, Fig. 5 (not shown), the batteries are replaced by a centre-tapped resistor whose ends are connected to a D.C. supply. Specification 581,743 is referred to.
Patent GB-711758-A (GB)
Title: Improvements in calcium carbide
Inventor: CARPENTER GILBERT BROWN
IPC: C01B32/942
Filed: 1952-10-27
Abstract: Calcium carbide, preferably in particles of 1/4 to 1/12th inch in size, is coated with a viscous lubricating oil fraction of the type known as cylinder stock to prevent overheating when exposed to moisture.  The preferred proportion of oil to carbide is 0.4 to 0.9 per cent.
Patent GB-507983-A (GB)
Title: High speed tool steels
IPC: C22C38/12
Filed: 1938-09-15
Abstract: 507,983. Alloys. DEUTSCHE EDELSTAHLWERKE AKT.-GES. Sept. 15, 1938, No. 26982. Convention date, Sept. 18, 1937. [Class 82 (i)] Alloy steels suitable for high speed tools contain 0À7-1À8 per cent of carbon, 2À1-15 per cent of tantalum or niobium or both, and 0À3-5 per cent of vanadium, with or without any of the following: up to 6 per cent of chromium, up to 20 per cent of cobalt, and up to 5 per cent of tungsten or molybdenum or both. The tantalum or niobium may be partly replaced by the same amount of titanium.
Patent GB-191469-A (GB)
Title: Ball rolling apparatus
IPC: B21H1/14
Filed: 1921-10-12
Abstract: 191,469. Canda, F. M. Oct. 12, 1921. Rolling balls; axial rolling.-A mill for rolling roughly-formed balls to spherical shape comprises a pair of grooved rolls 2, 3, either or both of which may be adjusted so that their axes remain parallel. The blanks are located in a vertical direction between idle rollers 10 which are mounted to remain central to the pass between the main rolls, whatever the adjustment of the pass may be. One main roll 3 is adjusted by fluid-operated rams which are linked to the slides 9 carrying the fluid-adjusted locating rollers 10 in such a manner that the latter partake of half the adjustment of the main rolls. In a modifition, Fig. 5, the locating rollers have only a vertical adjustment, the main rolls being equally and oppositely adjusted either by a fluid-controlled toggle linkage 24, or by a pair of right and lefthand threaded screws.
Patent GB-519309-A (GB)
Title: Improvements in and relating to boxes
IPC: B65D6/36
Filed: 1938-09-16
Abstract: 519,309. Spiked plates. NO-NAIL CASES PROPRIETARY, Ltd., and KAMPER, A. M. Sept. 16, 1938, No. 27113. [Class 89 (ii)] [Also in Group XVII] Boxes of the type in which metal binding strips of angle' sections are secured by teeth, or wire by stitching, riveting &c. to the end edges of plywood or other panels forming the bottom and two sides and in some cases also the top of the box, have the ends secured in grooves by metal plates I, secured to the ends H by teeth K and to the flange G of the angle strip by projections M engaging the recesses G<1> and by tongues L bent over the end of the flange G. In other forms, metal plates on the ends pass through slots in the flanges and are bent over, or are bent over the edges of the flanges. In a further form a bar connects two opposite flanges by passing through slots therein and being bent over. Specification 401,660 is referred to.