baber/WOPTO huggingface dataset:
Patent GB-823011-A (GB)
Title: Film tube guide
IPC: B29C48/10
Filed: 1958-01-24
Abstract: <PICT:0823011/IV (a)/1> <PICT:0823011/IV (a)/2> <PICT:0823011/IV (a)/3> In apparatus for the production of continuous seamless tubular films of synthetic organic thermoplastic high polymers comprising an annular extrusion die provided with a duct for introducing a gas under pressure to inflate the tube of film as it leaves the die and a pair of nip rolls for withdrawing the tube of film from the die, stretching it longitudinally and flattening it to imprison an air bubble in the film, between the die and the nip rolls and nearer to the former, there is provided a guide ring for tubular plastic film containing escaping volatile constituents which guide ring comprises a generally circular guide ring having a portion of its inner surface adapted to circumferentially contact and guide a plastic film tube being passed interiorly therethrough and a portion that faces but does not contact or guide the plastic film tube, means for cooling the latter portion of the inner surface of the guide ring to a temperature beneath the condensing temperature of volatile constituents escaping from the plastic film, means for collecting condensed volatile liquids from said portion of the surface, and liquid withdrawing means in combination with the collecting means in the guide ring for continuously disposing of the condensed liquids. As shown in Fig. 2, the guide ring 9 is comprised of a housing 12 having a rectangular cross-section and being provided with two adjacent but non-communicating interior annular passageways 13 and 15 respectively.  A smooth-surfaced lip or rim 20 projecting inwardly from the bottom of the inner surface of the ring functions as a guide surface contacting the inflated tubular film 7.  The guide ring 9 is cooled by circulation of a cooling medium through the annular passageway 13, the cooling medium entering and leaving the passageway through the apertures 14.  The passageway 15 communicates with the inner and bottom surfaces of the guide ring 9 through a number of small uniformly spaced round openings 17 1/32 -\ba1/4 inch in diameter with centres spaced apart 2-8 times their diameters, and with a vacuum source (not shown) through the outlets 16.  In this manner the annular passageway 15 is utilized for aspirating the inner and bottom surfaces of the guide ring.  An absorbent felt or other fabric cover may be provided for the non-film contacting surfaces of the aspirating guide ring.  When the tubular film is extruded in a vertically upward or downward direction the guide ring may have the form shown in Fig. 4 in which the condensate collecting surfaces of the housing 12 of the guide ring are arranged to drain into the collector gutters 18 and 19 or as shown in Fig. 5 in which the condensate drains into the single collecting trough 21. Guide rings according to the invention prevent marking of the film as the result of volatiles which condense on the guide ring running down on the extruded film.  Specification 654,550 is referred to.
Patent GB-1211845-A (GB)
Title: Improvements in or relating to the purification of a micro-organism
Inventor: CHAFFAUT JEAN AMAUDRIC DU
IPC: C12N1/16
Filed: 1967-01-18
Abstract: 1,211,845. Yeast &c. BRITISH PETROLEUM CO. Ltd. Dec.12, 1967 [Jan.18, 1967(2)], Nos. 2580/67 and 2582/67. Heading C6F. A micro-organism containing material including (1) an evaporable material such as hexane, ethanol, propanol, isopropanol and butanols, and (2) water, the amount of water being greater than 20% based on the dry weight of the micro-organism and the amount of evaporable material being not more than 50% by weight of the water, so treated, as by drying, to remove part or the whole of the evaporable material while maintaining at least 20% of water based on the dry weight of the micro-organism, in association with the micro-organism. Examples are directed to the drying of pastes of the yeast Candida lipolytica contaminated with hexane and isopropanol used in the extraction of residual hydrocarbon from the micro-organism. The drying was carried out in either a tray dryer having a heated surface swept by 4 scraper dispatchers, or a screw conveyer dryer having a jacketted trough covered by a lid.
Patent GB-116865-A (GB)
Title: Improvements in Apparatus for Cleaning Fabrics and like Materials.
Inventor: HENNING ALBERT
IPC: D06F11/00
Filed: 1918-02-13
Abstract: 116,865. Henning, A. Feb. 13, 1918. Fats and fatty oils; extracting.- In an apparatus for cleaning fabrics of the type described in Specification 5940/11, comprising separate chambers fur the fabric and cleaning-agent communicating by a valve, the valve is opened on inserting a hollow receptacle containing the fabric to be cleaned, and closes on removing this receptacle. In the form shown in Fig. 1, the valve is formed as a spring lift-valve c in the partition b, which separates the chambers 1 and 2, and the receptacle f presses on the stem of the valve, thus opening it. The receptacle f is held in place by a cover i and bolts n, so that, as long as the apparatus is closed, the valve is held open. A removable perforated partition h resting on a ledge g may be placed in the receptacle f, and a presser-plate k is provided. Fig. 2 shows the apparatus mounted on a stand o provided with a hook p, by means of which it may be held in an inverted position to allow the cleaning-material to soak into the fabric, or erect so that it may drain away. A vent-cock q allows of the escape of vapour.
Patent GB-1113777-A (GB)
Title: A means for providing a variable reference voltage of reversible polarity
IPC: H03M1/00
Filed: 1967-01-18
Abstract: 1,113,777. Transistor switching circuits. BOLKOW G.m.b.H. 18 Jan., 1967 [4 Feb., 1966], No. 2600/67. Addition to 1,074,358. Heading H3T. [Also in Division G3] A circuit including a supply source Uh, transistors T 1 , T 2 , diodes D 1 , D 2 , resistors R 1 , R 2 , an adjustable resistor Rst and a feedback loop comprising an amplifier V and resistors R 3 , R 4  operates as described in Specification 1,074,358 to provide a stable reference voltage at terminals A, B, of one polarity when T 1  is conductive and T 2  non-conductive, and of the opposite polarity when T 1  is non-conductive and T 2  conductive. The Specification explains that with such a circuit disadvantages arise with low values of current through T 1  and D 1  or T 2  and D 2  because of the high dynamic resistance of the diode D 1  or D 2  at these current levels, and further circuitry is therefore provided to overcome these disadvantages. As shown, this further circuitry includes a diode D 5  and a resistor R 5  connected between the cathode of D 1  and the base circuit of T 2 , and a diode D 6  and a resistor R 6  connected between the cathode of D 2  and the base circuit of T 1 , further resistors R 8 , R 9  being connected between the respective base circuits and the supply source Uh. The arrangement is such that a current Jv flows through the further circuitry when T 1  or T 2  is conductive, the current Jg then flowing through diode D 1  or D 2  being the sum of current Jv and the current Jst flowing through the resistor Rst and being sufficient to ensure that the diode D 1  or D 2  operates at a point in its characteristic which is such that its dynamic resistance is negligible in comparison with the resistances R 1  and R 2 .
Patent GB-510172-A (GB)
Title: Improvements in collapsible tubes
IPC: B65D35/10
Filed: 1938-01-27
Abstract: 510,172. Collapsable tubes. MOCK, H Jan. 27, 1938, No. 2668. Convention date, Feb. 10, 1937. [Class 66] The open end of a collapsable tube of metal formed with an integral rounded bottom portion is flattened, except for rounded portions 13a affording an orifice 13, and a sheet metal clamp 14 - provided with a threaded neck 16 fitted with a closure cap is folded and pressed thereover.
Patent GB-1433465-A (GB)
Title: Gas-liquid contact apparatus for effecting heat-and mass transfer between fluids
IPC: F28F25/02
Filed: 1974-01-21
Abstract: 1433465 Cooling towers ENEBGIAGAZDALKODASI INTEZET 21 Jan 1974 02761/74 Heading F4K [Also in Division B1] In gas-liquid contact apparatus, e.g. a cooling tower, comprising an inclined liquid distributor surface 10 from which a plurality of spaced apart flow guiding members in the form of rods 18 depend, the rods are partially surrounded by baffle means in the form of blocks 20 having an inclined upper surface 20A and an inverted frustoconical recess 20C, the angle of inclination α of the upper surface 20A being less than the angle of inclination # of the distributor surface 10. In use liquid to be cooled is supplied through an inlet pipe 12 to form a downwardly moving liquid film 28 on the underside of the surface 10. Liquid received from the film 28 is evenly distributed over the surface of each rod by the baffle means, excess liquid rebounds from the upper surface of the blocks onto the surface 10 to rejoin the liquid film thereon. Cooled liquid leaving the rods collects in a tray 16 and is withdrawn through a pipe 14.
Patent GB-225735-A (GB)
Title: Improvements in or relating to power transmission
IPC: F16H33/16
Filed: 1924-02-02
Abstract: 225,735. Jackson, W. J. Mellersh-, (Reece Transmission Co.). Feb. 2, 1924. Variable-speed gearing is rendered automatic bv the action of vanes upon planetary centrifugal masses 60, which may consist of steel balls in oil, of mercury, or of another liquid. Masses are passed to and fro between concentric sets of vanes or pockets being carried inwards the gear axis by the outer set 50, and outwards bv the inner set 40. These vane sets or drums turn loosely one within the other upon spindles 15 upon a disc 14 secured to the driving-shaft 13. Each drum 40 is fixed to a gear 30 which is connected through planetary idlers 26 to a gear 31 permanently kept from turning by an anchoring device 34, 36. The drum 50 is in like manner connected through idlers 61 to central gear 63. The gear 63 is connected to the driven shaft 17 by a train 69, which is normally locked to turn solid by clutch 87. Thus the drums 40, 50 both turn oppositely to the driving-shaft at speeds proportional to the speeds of the driving and driven shafts respectively. The masses 60 have the effect of dragging the outer drum after the inner one continuously and so driving the shaft 17. At slow speeds, there is very little torque transmitted. A movement of the clutch 87 stations the spider 71 of the train 69, and so effects reversed driving. In the position shown in Fig. 1, the clutch 87 locks the driven shaft 17 to the immovable gear 31, which lock of the driven shaft is useful as applied to a motorvehicle.
Patent GB-1030060-A (GB)
Title: Breech assembly
IPC: F41A3/00
Filed: 1965-01-22
Abstract: 1,030,060. Cartridge extractors. AMP Inc. Jan. 22, 1965 [Jan. 30, 1964], No. 2825/65. Heading F3C. [Also in Division B4] The description is identical to that of Specification 1,030,059, but the claims are directed to the cartridge extractor sleeve member.
Patent GB-899220-A (GB)
Title: Process for the selective hydrogenation of hydrocarbon mixtures
IPC: B01J23/78
Filed: 1961-01-25
Abstract: Hydrocarbon mixtures obtained by cracking are selectively hydrogenated by contacting in the presence of hydrogen or a hydrogen-containing gas with a cobalt catalyst supported on a carrier containing at least one alkalineearth metal salt which is insoluble or substantially insoluble in water, the average catalyst temperature being not greater than 160 DEG C.  The carrier may consist of an alkaline-earth metal, e.g. barium strontium or calcium sulphate, carbonate or phosphate, and may contain 1-25% by weight of cobalt calculated as the metal.  The hydrocarbon mixture may be an oil having a final boiling point of not more than 375 DEG C., e.g. a gasoline or gasoline fraction obtained by thermal cracking in the presence of steam.  The sulphur content of the hydrocarbon mixture is preferably less than 0,1% by weight. The hydrogenation is preferably carried out at 10-60 atmos. abs.; with at least a portion of the hydrocarbon being liquid, for example in the "trickle technique" as set forth in Specification 657,521.  The catalyst may be in the form of a fixed or a fluidized bed.  A suitable catalyst may be prepared by mixing barium sulphate with cobalt nitrate solution to form a paste, drying at 120 DEG C., compressing with stearic acid to form pellets, from which the stearic acid is then burnt off in the presence of oxygen, calcining at 500 DEG C., and reducing by passing hydrogen over the pellets at 400 DEG C. and 40 atmos. abs.
Patent GB-102191-A (GB)
Title: Protective Railing for Swinging Cots or Bassinets for Infants.
Inventor: OAKES AUDREY INEZ ALBERTA IKIN
IPC: A47D15/00
Filed: 1916-02-28
Abstract: 102,191. Oakes, A. I. A. I. Feb. 28, 1916. Safety enclosures for babies and children.-A protective enclosure for swinging cots or bassinets consists af a rectangular structure supported on legs c and having a side e hinged and secured by catches g to afford access to the occupant of the cot.
Patent GB-1199337-A (GB)
Title: Thread Cutter for an Electrically Operated Sewing Machine
IPC: D05B65/00
Filed: 1968-01-19
Abstract: 1,199,337. Sewing machines. GROSVENOR DRESS CO. (NORTHAMPTON) Ltd. and C. J. GOOSEY. 20 Jan., 1969 [19 Jan., 1968], No. 3004/68. Heading D1G. A sewing machine is provided with a threadcutting blade adapted to be actuated by a solenoid, the energising circuit of which contains a switch which is manually operable when the machine is stopped, and interrupter means so arranged that when the switch is closed the circuit is not completed unless the needle is disengaged from a workpiece being sewn and a loop of thread to be cut is positioned in the path of movement of the cutter blade. In a blindstitch sewing machine, a bracket 8, secured by screws 9 to the machine head, carries a solenoid 10. A lever 12 pivoted intermediately at 13 to bracket 8, carries at one end a knife blade 14 and is pivoted at its other end at 16 within the bifurcated end of the armature 11 of solenoid 10. A spring 17 biases armature 11 inwardly and blade 14 to an inoperative position. The circuit of solenoid 10 comprises a switch which is closed when a treadle, depresssed in one direction to start the machine, is reversely depressed when the machine is stopped. The circuit also comprises a pair of brushes 27 which are bridged by a conducting segment 22, carried by an insulating disc 20 rigid with the arm shaft of the machine, when the needle is raised and a loop of needle thread 5 extends across the path of movement of knife 14. The arrangement is thereby such that if brushes 27 are not initially bridged by segment 22 when the machine stops, the arm shaft is turned by means of the hand wheel 2 until such bridging occurs, when the treadle is reversely depressed. It is stated that segment 22 may be combined with means for stopping the machine with the needle raised.
Patent GB-503044-A (GB)
Title: Improvements in and relating to amplifying circuits
IPC: H03F1/36
Filed: 1938-01-31
Abstract: 503,044. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 31, 1938, No. 3050. Convention date, Jan. 30, 1937. [Class 40 (v)] The output impedance of an electron discharge amplifier is given a low or a high apparent value by feeding back to the input a composite voltage one component of which is regenerative and the other component is degenerative. One of the feedback voltages is controlled by the output voltage and the other by the output current of the amplifier. Fig. 2 shows a pentode amplifier 7 in which a voltage derived from a tapping 20 is fed back together with a voltage proportional to the current flowing in resistance 27, a valve 26 serving to render the latter regenerative. A transformer may be used in place of the valve 26 to reverse the phase, Fig. 1 (not shown), or alternatively the voltage obtained from the series resistance may be phase reversed by application to the grid of the preceding valve stage Fig. 3 (not shown). Fig. 4 shows a high frequency ampli. fier 7 whose output impedance is increased by a composite feedback voltage dependent on the voltage across and the current flowing in the output circuit. When the resistance 46 would produce excessive bias the part of the resistance not required for producing bias voltage may be shunted by a resonant circuit.
Patent GB-1023611-A (GB)
Title: Improvements in or relating to surface coated wall,ceiling or floor structures
IPC: E04B1/76
Filed: 1963-01-24
Abstract: 1,023,611. Heat and sound insulating walls. OSTERLIND & SON A.B. Jan. 24, 1963 [Jan. 25, 1962], No. 3065/63. Heading E1V. [Also in Divisions B7, F2 and F4] A wall, ceiling or floor supporting structure 10, of concrete, stone, wood, metal or plastic, has on at least one side a panel 14 divided into sections and adhered to a sound and heat insulating layer 12 of glass or mineral wool, paper, cork or plastic material, the panel being anchored to the structure by flexible or hinged tongues 16 of sound and heat insulating material. The tongues 16, which may be of polyethylene reinforced with fabric or glass fibre, are riveted to inturned flanges 14a of the panels and are perforated as at 18 to increase the bond of a jointing composition 11 between the structures 10. The insulating layer 12 is covered with polyethylene foil which adheres to the panel 14 and structure 10 through bitumen layers 15, 13. The interstices between the panels 14 are sealed with a gas- and liquidtight putty 21; transversely directed tongues 19 formed from each flange 14 interpenetrate slots 20 in the adjacent flanges to locate the panels and allow for thermal expansion. In a second embodiment, Fig. 6, the tongues 16 are riveted to angles 22 secured to the structure by screws or nails 23 and the V-shaped joints between the insulating layers 12 are sealed with soft foam plastic 24 and putty 21.
Patent GB-728260-A (GB)
Title: Improvements in and relating to spraying devices
IPC: B05B7/14
Filed: 1953-02-04
Abstract: 728,260. Crop-dusters. AKTIESELSKABET R. SIGVARDT. Feb. 4, 1953 [March 3, 1952 ; Dec. 4, 1952], No. 3155/53. Class 6 (1). [Also in Groups XXVI and XXIX] A crop-dusting machine in which powder is fed into the airstream of a, blower includes a blower casing 32, Fig. 1, with air outlet spouts 33 projecting laterally from the casing with their axes diverging from one another. The outlets may have varying cross-sectional areas and may be arranged in two or more parallel rows. In Fig. 7, the spouts are arranged on a distributor box 48 adjustably mounted on a blower casing 46. Alternatively, one or more of the spouts 53, Fig. 10, is or are adjustably mounted on the casing.
Patent GB-723963-A (GB)
Title: Machine for laying out long shaped alimentary paste on one or more parallel canes
IPC: A21C11/00
Filed: 1950-02-08
Abstract: 723,963. Positive clutches. BRAIBANTI, M., and BRAIBANTI, G. Feb. 8, 1950 [May 6, 1949], No. 3236/50. Class 80 (2) [Also in Group V]. Mechanism for imparting an intermittent character to the drive of a machine for cutting lengths of extruded spaghetti (see Group V) comprises a continuously rotating driving shaft 31, from which are driven, by chains 34, 35, disc cams 28 and a member 22 having projections 24. Each sprocket 38 is fixed on a rotatable member 25, which carries a projection 26, and when the projection 26 is in the position where it is engaged by a projection 24, as on the right of Fig. 14, the sprocket 38 is driven from the shaft 31. The projection 26 glides on the circumference of a fixed disc 29 until it reaches a notch 30 therein, which it enters under the influence of a spring, so disconnecting the drive. The drive is reestablished when the associated cam 28 lifts the projection 26 from the notch 30.
Patent GB-1301743-A (GB)
IPC: D01G1/04
Filed: 1970-01-23
Abstract: 1301743 Stapling fibres EASTMAN KODAK CO 23 Jan 1970 [27 Jan 1969] 3326/70 Heading D1F Apparatus for cutting elongated material into shorter lengths, e.g. stapling filamentary, crimped tow, comprises a cutter assembly having knife blades circumferentially arranged and spaced apart with the knife edges facing outwardly, e.g. as described in Specification 1204363, and a guiding member which revolves around the assembly for wrapping the material onto the knife edges which sever the material into adjustably uniform or irregular or different lengths. Optionally a revolving roller transmits pressure to the innermost-layer of wrapped material to force it inwardly of the knife edges. As shown, tow 18 passes through a ring guide 68, partly around a freely rotatable spool guide 16 adjustably positioned and carried on a rotating ring gear 14, thence into the space between parallel discs (not shown) of a cutter assembly 12 wherein it is anchored and then wrapped (with a low imparted twist) around a stationary profile defined by the cutting edges 34 of knife blades 32. The position of a pressure roller 20, also movable with the ring gear, in relation to theblades 32 is adjusted by rocking levers 52 by means of a manually-operated worm 55 and worm-wheel 53 mechanism. The spool 16 may be replaced by an eye bolt. The assembly 12 and ring gear 14 may both be rotated provided the relative movement therebetween ensures wrapping of the material around the blades. The gear 14 may be rotated, in one direction or the other, by a motor 24 through a driving pinion 22 or the gear teeth may be replaced by a V-groove for cooperation with a driving belt. The ring may be replaced by a conveyor mechanism dependent on the configuration of the profile offered by blades 32.