baber/WOPTO huggingface dataset:
Patent GB-582750-A (GB)
Title: An improved process and apparatus for obtaining glycerine from distillery slops or spent wash
IPC: C12P7/20
Filed: 1939-05-26
Abstract: <PICT:0582750/III/1> Glycerine is obtained from distillery slops or waste by a process which is characterised by the feature that the slops, after being heated under pressure to a temperature above the boiling point of the slops at atmospheric pressure are united in the bottom part of an evacuated still with a slops distillation residue heated at least to the distillation temperature of crude glycerine to distil off the glycerine content of the slops by the thermal action of the residue.  The crude glycerine which is distilled off is freed from organic impurities before being further worked up.  The union p of fresh slops and distillation residue may be effected either by sucking the freshly supplied slops into the distillation residue and mixing them up with it or by introducing the slops in a fine state of sub-division into the preferably evacuated still on to the surface of the distillation residue contained therein so that the sprayed drops penetrate into the distillation residue.  The distillation of the glycerine is effected by the application of heated steam.  The crude residue may be either intermittently or continuously withdrawn from the still.  Before the crude glycerine is further worked up it is heated to a temperature between its boiling point and the boiling point of water and the alkalinity is continuously controlled by the continuous addition of an alkaline agent.  In an example distillery slops neutralised with lime are evaporated in vessel 1 and heated to about 90 DEG  C, compressed by pump 2 and forced through preheater 3 through pipe 4 to the lower part of the still 6.  The charge is heated to expel water and organic matters.  When the temperature has risen to 140 DEG -150 DEG  C. the crude glycerine is distilled off by introducing steam from a superheater 19 through a pipe 20.  Half the residue is withdrawn into a receptacle 8 through aperture 7, and the charge in the still made up by introducing fresh slops.  The slops may alternatively be introduced through a pipe 12 and pressure reducing valve 5 by a sprinkler 13.  The introduction may be either intermittent or continuous.  In the former case it is possible to separate the glycerine from the other volatile constituents and in the latter case a subsequent separation is necessary.  The crude glycerine obtained from the coil 11 is heated to above 100 DEG  C. and then worked up by treatment with alkali (milk of lime, or soda lye) and distillation.
Patent GB-352977-A (GB)
Title: Improvements in and relating to flexible safety razor blades
IPC: B26B21/56
Filed: 1930-04-15
Abstract: 352,977. Safety-razor blades. THOMPSON, R. E., 428, Warren Street, Brookline, Massachusetts, U.S.A. April 15, 1930, No. 15819/31. Convention date, April 25, 1929. Divided on 352,975. [Class 30.] A safety-razor blade of the kind which is flexed between cylindrical surfaces on a guard and a cap is formed at the corners with rounded recesses 25 to prevent distortion by pressure of the corners of the cap. Specifications 133,963, [Class 30, Cutleryl, 352,975, and 352,976 are referred to.
Patent GB-1489853-A (GB)
Title: Electrical connector
IPC: H01R13/719
Filed: 1976-04-20
Abstract: 1489853 Electrical connector AMP Inc 20 April 1976 [28 April 1975] 15831/76 Heading H2E In an electrical connector in which at least one terminal post 2 is provided with a tubular filter 3 connected electrically between the post and a composite earth plate 5 the outer electrode of the filter contacts the ground plate 5 on mounting the filter when inwardly directed tines 10 of an overlying metal foil 7 are compressed into and against the inner surface of a receiving bore 8 in a metal plate 6. A contact spring 4 connects the post to the filter. The foil 7 is secured to the plate 6 by conductive epoxy resin. An insulating plate 12 isolates the end of the filter from the metal of connector casing 1. The earth plate 5 is constructed with as many bores 8 as the connector has terminal posts and, should a post not be provided with a filter, the associated overlying tines 10 on foil 7 are removed as they would otherwise earth the post.
Patent GB-560923-A (GB)
Title: Secret signalling systems
IPC: H04K1/02
Filed: 1940-10-29
Abstract: 560,923. Secret systems. ECKERSLEY, P. P. Oct. 29, 1940, No. 15839. [Class 40 (iv)] In a system such as that described in Specification 521,191 in which the transmitter and receiver comprise rotary transformers with polyphase stators connected to a polyphase transmission line and with rotors to or from which the signals are applied or received, the transmission line being supplied by a polyphase generating winding, the secrecy of the transmission due to the masking effect of the polyphase voltages is enhanced by continuously varying the frequency thereof. The amplitude of the polyphase voltages may also be varied and further masking impulses or other variable conditions may be superimposed on the transmission. In the system shown the upper portion is arranged for transmitting and the lower for receiving although the system may be adapted for two-way transmission. The rotors of a polyphase generator G1 and a rotary transformer T1 are driven by motor M, the polyphase stators being connected directly or over transformer T1<1> to the line. At the receiver a rotary machine G2 running synchronously with the transmitting generator drives the rotary transformer T2. The speed of the rotors of transformers T1, T2 is equal to that of the rotary field of the stators so that signal currents from microphone P are superimposed on or modulated by the polyphase currents and are demodulated by the receiver transformer T2, and polyphase currents are not induced in either rotor. Motor M is series wound and its speed is controlled irregularly by a variable resistance R1 controlled as shown by an arm X1 rotated by the motor M or an independent motor. The mean speed is adjusted by resistance R<1>. The frequency variation is such that the transmission cannot be made intelligible by using a rejector circuit to eliminate the masking frequencies. The amplitude of the polyphase voltages may be varied irregularly by resistance R2. The pairs of polyphase machines at the transmitter and receiver may each be combined in a single machine. The machine G2 at the receiver may be driven by a D.C. motor controller over the transmission line by the variable resistance R1 at the transmitter to improve synchronism if the changes of speed are rapid. Further masking may be effected by superimposing impulses, e.g. from a buzzer on the D.C. control path. Also the inertia of the motor armatures may be varied by eddy current brakes with changeable discs. The balance of the system may be adjusted by relatively rotating stator T1 so as to exclude the fundamental frequency from the rotors, and trouble from harmonics may be avoided by using filters or a relatively high fundamental frequency. Multiplex transmission may be effected as described in the Specification referred to, and tapping of the line may be detected by a voltmeter or ammeter. The drawing filed with the Provisional Specification shows a number of the additional features above referred to.
Patent GB-499259-A (GB)
Title: Improvements in spark plugs
IPC: H01T13/34
Filed: 1938-05-27
Abstract: 499,259. Sparking-plugs. GENERAL MOTORS CORPORATION. May 27, 1938, No. 15867. Convention date, June 1, 1937. [Class 7 (iv)] A two-part casing consists of a flanged and threaded portion 11 and an outer part the inturned end 19 of which is pressed resiliently against. the insulator while its other end 22 is welded or otherwise secured to the portion 11. Washers 21 of C or torus cross-section are placed between the insulatoi and the flange 19. The outer end of the member 18 may, however, be curled inwards tc provide a resilient contact. The member 18 may be formed either with wide slots to allow air to circulate around the insulator, or with narrow slits to permit better contact during welding.
Patent GB-197220-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C7/46
Filed: 1922-06-07
Abstract: 197,220. Sandford, G. R., and Summers, W. T. June 7, 1922. Ladders.-A non-slipping support for ladders comprises two wedge blocks a, one for each upright, connected together by a cross-bar b, and each block is provided with an upstanding step c and a stop flange h. The wedges are tied to the ladder rungs to prevent disengagement. The wedge surface may be slightly convex longitudinally and provided with a small step j at the front end. Furthermore, in order to increase the friction between the wedges and ground, spilkes k may be driven through the wedges.
Patent GB-743355-A (GB)
Title: Improvements in tensioning means for strips of paper and other material when being drawn from or wound on to a reel or other support
Inventor: SPENCER JAMES SARTHUR
IPC: B65H23/10
Filed: 1953-06-09
Abstract: 743,355. Winding and unwinding webs. BRITISH INSULATED CALLENDER'S CABLES, Ltd. June 8, 1954 [June 9, 1953], No. 15879/53. Class 100 (1). A strip is tensioned during winding or unwinding by one part of the strip engaging another part of the strip moving in the opposite direction. As shown, a strip 1 is drawn off a reel 2 at a point 3, passes around a guide roller 5, down between pressure rollers 6 and 7, around a guide roller 8, around the reel 2, down between the rollers 6 and 7, around a guide roller 9, and up between rollers 6 and 7. The roller 6 is carried by an arm 10 engaged by a leaf spring 11 adjustable by a screw-threaded rod 12 engaging a pivotally mounted block 13. The rod 12 may be disengaged from the spring 11 by rocking a handle 16 away from a stop 15. The part of the strip passing around the reel periphery serves as a reel brake. During winding, the part of the strip passing around the reel periphery rotates the reel, the strip being tensioned before winding by the strip engaging, between the rollers 6 and 7, a portion moving in the opposite direction. To obviate the effects of snatching, the roller 7 may be pressed towards the roller 6 by a relatively strong spring, or a further guide roller may be provided and be spring-pressed and connected by a lost-motion device with a pivotal mounting carrying the roller 7 to move the roller 7 momentarily from operative position.
Patent GB-106419-A (GB)
Title: Improvements in Cranes.
Inventor: HAINSWORTH ARTHUR FAIRBANK
IPC: B66C23/10
Filed: 1916-11-07
Abstract: 106,419. Hainsworth, A. F. Nov. 7, 1916. Jib cranes.-In a luffing-crane in which the luffing-drum is driven from the hoisting-barrel shaft by chain or toothed gear, the luffing-drum is fitted with an axial-pressure self-sustaining brake for preventing the jib from running down. The hoisting-drum A is connected through a clutch and chain- and-sprocket or spur gearing to the shaft J, on a threaded portion of which the luffing-drum B is mounted. When the clutch is in gear for derricking inwards, the drums are rotated together, and the load travels substantially horizontally. The weight of the jib causes the drum B to exert axial pressure on a ratchet-wheel G which is held by a pawl K, thus preventing the jib from falling. The pawl K is frictionally mounted on a shaft L driven by a spur wheel H on the shaft J. When the luffing-drum is rotated in the direction for hoisting the jib, the axial pressure on the ratchet-wheel G is increased, and the reverse rotation of the shaft L withdraws the pawl K from the ratchet-wheel G. When lowering the jib, the rotation of the shaft J eases the pressure on the ratchet-wheel, which is then held by the pawl K.
Patent GB-789280-A (GB)
Title: Improvements in or relating to filters for liquids
IPC: B01D35/00
Filed: 1956-05-23
Abstract: 789,280. Accreted filter element. GENERAL MOTORS CORPORATION. May 23, 1956 [May 25, 1955], No. 15930/56. Class 46. A filter comprises a support 30 of impervious material having a central opening 38 and at least one other opening 40, and and element of accreted filter material 44 fixed to one side of the support 30 so as to form a chamber 46 spaced from the central opening 38 and in communication with the opening 40. The element and support may be fitted in a body 10 having an inlet passage 12 and an outlet passage 14, a cup 32 being secured to the body 10. The accreted element 44 is formed by building up a layer or layers on a suitable form from a fibrous slurry. A suitable slurry comprises, by weight, 49 per cent of ground jack pine fibre passed through a twenty mesh screen, 21 per cent bleached sulphite pulp and 30 per cent phenol-formaldehyde resin. In a modification the support 30 is formed as a troughshaped member.
Patent GB-240548-A (GB)
Title: Improvements relating to manifold writing books and pads
IPC: B41L1/24
Filed: 1924-07-03
Abstract: 240,548. Huckman, A. J., and Bennett Bros., Ltd. July 3, 1924. Writing-blocks; block-holders. -A manifold writing book or pad, in which the sheets are connected together at the lower edges, is carried by a retaining- device arranged at the lower edge of a cover h and consisting of rotatable pins j having their upper ends bent at rightangles, so that in one position they can pass through perforations in the bound edge of the sheets, but prevent removal of the pad when turned from that position. The sheets are folded and perforated at b to form original and duplicate sheets a<1>, a, and are bound together by extensions of the duplicate sheets a, perforations being provided to enable the sheet a to be detached from its extension. A sheet e of carbon paper is bound with the pad.
Patent GB-948007-A (GB)
Title: New dyestuff derivatives and process for their manufacture
IPC: C08G18/48
Filed: 1960-05-05
Abstract: 948,007. Synthetic resin derivatives of dyestuffs. CIBA Ltd. May 5, 1960 [May 6, 1959; July 13, 1959], No. 16001/60. Heading C3R. [Also in Division D1] A process for the manufacture of new dyestuffs derivatives comprises reacting an azo dyestuff, which is free from any acid water-solubilizing group and contains at least one substituent capable of reacting with alkylol groups or etherified alkylol groups, with a mixture capable of giving rise to a melamine or urea-formaldehyde resin precondensate containing alkylol groups which may be etherified. Suitable dyestuffs contain -NH 2  or N-alkylol groups as the reactive substituents, which may be bound to benzene or naphthalene residues. The dyestuffs may contain a residue of the formula: in which X represents a substituted amino or hydroxyl group, an alkyl, aryl or aralkyl radical, a halogen atom or an : group and m and n each=1 or 2, or a residue of the formula: The -NH 2  group may also be present in H 2 N.CO.CH 2 , urea or -SO 2 NH 2  groupings. Preferred dyestuffs are monoazo dyestuffs which may also contain a metal especially copper, chromium or cobalt, bound in complex union. The azo linkage may be bound to a benzene nucleus and to a naphthalene or pyrazolone residue. In the reaction with the resin components the dyestuffs are advantageously used as micro-dispersions of particle size 1 to 10Á. Etherification of the product can be effected after the dyestuff derivative has been made, or the dyestuff itself can be reacted with a resin precondensate containing etherified alkylol groups. The products can be made up as dispersions for dyeing or printing. There may be added acid catalysts, such as ammonium sulphate, nitrate, phosphate or silicofluoride, magnesium chloride, zinc nitrale, zinc fluoroborate, tartaric or formic acid or a hydrochloride of an organic base; polymers of ethylenic compounds; and thickeners such as starch, tragacanth, British gum or urea. In Example (1) the dyestuff is prepared by coupling diazotized 1-amino-4-methoxy benzene 1 -acetylamino-4-hydroxybenzene, hydrolysing reacting with cyanurie chloride and then replacing one of the chlorine atoms attached to the triazine ring by -NH, by reaction with ammonia. The dyestuff is reacted with aqueous formaldehyde and melamine in a solution kept at pH 8 to 8À5 by the addition of ammonia. It is then etherified with butanol in the presence of formic 'acid. The product is dispersed in water with a reaction product of 200 mols of ethylene oxide and 1 mol of hydroabietyl alcohol, cross-linked with 1% hexamethylene diisocyanate. In Example (5) a pigment of the formula: is reacted with an aqueous mixture of urea and formaldehyde containing sodium hydroxide solution. A number of other dyestuffs are specified.
Patent GB-919712-A (GB)
Title: Improvements in and relating to semi-trailer tanker vehicles
IPC: B60P3/22
Filed: 1960-05-05
Abstract: 919,712. Tanker vehicles. VAN DOORNE'S AAHANGWAGENFABRIEK N.V. May 5, 1960 [May 11, 1959],No. 16012/60. Class 108(1). The tank of a tanker vehicle has a substantially constant circumference throughout its length but the cross-section at its forward end 2 where it is attached to a tractor vehicle is oval with its major axis horizontal whereas at the rear it is oval with the major axis vertical so that it can be accommodated between the rear wheels 9. Internal baffles 11 and end caps retain the shape of the tank.
Patent GB-1235770-A (GB)
Title: Volumetric metering pump
IPC: F04B9/02
Filed: 1969-03-27
Abstract: 1,235,770. Metering pump. RHONEPOULENC S.A. March 27, 1969 [March 29, 1968], No. 16213/69. Heading F1A. A volumetric metering pump for accurately dosing small quantities of liquid comprises a pair of inter-connected plungers 8, 9, reciprocable in a pair of opposed parallel cylinders 5, 6, each having a conduit 48, 49, connectible through a valve 50 to an inlet duct 53 and an outlet duct 54, the valve being set to connect the inlet duct 53 to cylinder 5 and the outlet duct 54 to cylinder 6 while the plungers 8, 9 are moving to the left as seen in Fig. 1 and vice versa when the pistons are moving to the right. The plungers 8, 9 are connected to a member 10 slidable along a guide rod 11 and having a rack 16 engaged by a pinion 17 on the drive-shaft 18 of a motor 22 which drives the pinion 17 in a series of small pulses, the motor being reversed and the valve 50 switched between a pair of consecutive pulses when the member 10 trips one of a pair of micro-switches 14, 15 mounted on end supports 12, 13 of the guide rod 11. The valve 50, Fig. 3, which is operated by a pair of solenoids 29, 30, comprises a fixed member 51 and a slidable member 52 with an interposed gasket 57. The member 52 has a pair of passages 58, 59 connected to the inlet 53 and outlet duct 54 respectively, and the member 51 has three passages 60, 61, and 62 the passages 60 and 62 being connected to conduit 49 and passage 61 being connected to conduit 48, the member 52 being positioned so that passages 58 and 59 align with passages 60 and 61 or 61 and 62 respectively.
Patent GB-1415563-A (GB)
Title: Sliding clasp fasteners
IPC: A44B19/40
Filed: 1973-04-05
Abstract: 1415563 Warp-knitted fabrics OPTI-HOLD- 1NG AG 5 April 1973 [7 April 1972] 16230/73 Heading D1K A sliding clasp fastener comprises on each warp-knitted stringer tape 1 a row of interlocking elements 4 each having two substantially overlapping arms 5, 6 lying substantially perpendicular to the longitudinal axis of the fastener, the arms 5, 6 being connected by coupling heads 9 at the interlocking edges and adjacent elements being connected by parts 10, at least one arm 5, 6 being held in the loops of one course of several wales of the warp-knitted stringer tape. As shown, Fig. 1, a coiled plastics monofilament, forms elements 4 and both arms 5, 6 are held in the same stitches. As shown, Fig. 8, the monofil may be a flat meander with flattened coupling heads 9 about which the fabric is knitted before folding the meander so that heads 9 lie along the edge of the tape. Strengthening strands (17), Fig. 6 (not shown) may be held in the tape by sewing.
Patent GB-458906-A (GB)
Title: Improvements in or relating to containers for sprinkling pulverulent materials
IPC: B65D47/28
Filed: 1936-06-11
Abstract: 458,906. Powder sprinklers. FRANCIS, J. H. E., Thames Iron Works, John Penn Street, London. June 11, 1936, No. 16300. [Classes 18 and 125 (iii)] A powder sprinkler comprises a container with an apertured top b, a perforated cap e, and a perforated slide c which can be moved between the top b and the cap to bring the perforations into coincidence when powder is to be discharged. The slide moves in a recess in the top b and is operated by a projection c<2> which houses a pad of rubber or a spring d forcing the slide to its outer or "closed" position ; and the slide is guided by a projection c<8> passing through the flange surrounding the recess in the top b and also through the cap e. In a modification, the apertures comprise slots and the projection c<3> is omitted.
Patent GB-180226-A (GB)
Title: An improved ventilator for motor and other vehicles
IPC: B60H1/26
Filed: 1921-06-14
Abstract: 180,226. Hughes, F. June 14, 1921. Valves.-A ventilator for vehicles, particularly for the scuttles of motor-cars, comprises a flap e pivoted to the border of an opening b and a spring - extended strut g, h pivoted both to the flap and the border in such a way that it tends to retain the flap in either the fully-open or fully-closed position. In the arrangement shown, the flap is pivoted by hinges f passing through the aperture, and the spring strut is pivoted to a bracket e<1> attached to the flap so that its thrust is on opposite sides of the pivot of the flap in the open and closed positions of the latter.
Patent GB-631701-A (GB)
Title: Improvements in or relating to the manufacture of hollow beams and like elements of concrete or like cementitious material
IPC: B28B21/22
Filed: 1947-06-20
Abstract: 631,701. Apparatus for casting hollow concrete beams &c. LIVINGSTON, W. D., and KING, R. F. June 20, 1947, No. 16337. [Class 87 (ii)] Rotary packing heads 6, 7 are simultaneously rotated and lifted out of a mould 17, as concrete is fed into it. The heads are mounted on shafts 6a, 7a which are suspended from a vertically movable unit 8 which moves along guide rods 1d. The shafts are driven by spindles 15, 16, Fig. 3, which are of square cross-section or splined or keyed to provide a telescopic driving connection with the shafts. The spindles are driven, through gearing 16a, 15a, 12 by a motor 2. The unit 8 is raised by a cable 9 which is moved by a hydraulic jack. The mould.(see Fig. 4, not shown) may consist of a channel section, the open side of which is closed by a pallet held in position by clips. A sloping guide may be arranged in front of the mould so that with the aid of lifting tackle it may be raised to a horizontal position, where the pallet positioning clips and the mould are removed to leave the moulded article on the pallet. In a modification, the mould may be carried on a pivoted platform which may be moved from a vertical to a horizontal position by hydraulic means. The frame structure 1 may be mounted on a turntable to co-operate in succession with a circumferential series of moulding positions.
Patent GB-680046-A (GB)
Title: Improvements relating to brakes for invalid and like wheeled chairs
IPC: B62B5/04
Filed: 1950-06-30
Abstract: 680,046. Rest-bars. TAN SAD, Ltd., and SHOTT, P. July 2, 1951 [June 30, 1950], No. 16339/50. Class 108 (ii). [Also in Group XXXIV] A cranked lever a pivoted at a<1> to an invalid chair frame b has an end a<4> bent outwardly, and an end a<3> bent inwardly. A hand lever d when moved over a dead centre position from the Fig. 1 to the Fig. 2 position moves a lever e so that the rubber cover on a<4> acts as a brake and the end a<3> is moved downwardly to contact the ground and act as a rest bar. A fixed rest bar or a similar brake and support arrangement may be provided on the other side of the chair.