baber/WOPTO huggingface dataset:
Patent GB-934948-A (GB)
Title: Vacuum pump
IPC: H01J41/20
Filed: 1961-05-19
Abstract: 934,948. Discharge apparatus. VARIAN ASSOCIATES. May 19, 1961 [June 13, 1960], No. 18440/61. Class 39 (1). A glow discharge vacuum pump comprises a gas-tight envelope 23 containing a pumping chamber 13 and a plurality of gas access chambers 25, the pumping chamber being located between two mutually opposed side walls 24 of the envelope and comprising elements 12, 13 disposed substantially parallel to the side walls for establishing a glow discharge within the pumping chamber, the gas-tight envelope having an opening communicating directly with each of the gas access chambers. Magnetic means 37 are provided so as to create a magnetic field transverse to the pumping elements 12, 13, and the dimensions of the pumping chamber chosen so that it may be withdrawn for servicing through the opening. In an embodiment, a plurality of pumping chambers are provided, each located in a second gas access chamber, all the second gas-access chambers extending radially outward from a central first gas-access chamber, all the gas-access chambers being in direct communication with an opening, and wherein the sum of the volumes of the second gas-access chamber is equal to the volume of the first gas-access chamber. Specification 883,189 is referred to.
Patent GB-1269185-A (GB)
Title: Process for the isolation and purification of insulin
IPC: C07K14/625
Filed: 1970-04-17
Abstract: 1,269,185. Insulin purification. ELI LILLY & CO. 17 April, 1970 [5 Dec., 1969], No. 18470/70. Heading A5B. Insulin is purified by adjusting the basicity of an aqueous insulin-containing pancreatic extract or other aqueous insulin-containing solution to pH 7.2 to 10.0 and the alkali metal or ammonium cation concentration to 0.2 to 1.0 molar in the same cation, thereby causing crystallization of the alkali metal or ammonium insulin. The crystallized alkali metal or ammonium insulin, which is in the octadecahedral or dodecahedral crystal form, may be separated from the mother liquor by filtration, decantation or centrifugation. Basification may be effected with aqueous solution of Li, Na, K. Cs, Rh or ammonium hydroxides and preferably the cation concentration is adjusted with water-soluble organic and inorganic salts of the same cation used for basification. The purified insulin may be used to prepare a commercial preparation of insulin, e.g. zinc insulin or protamine zinc insulin.
Patent GB-710880-A (GB)
Title: Desulphonation of sulphonated compounds
IPC: C07C17/00
Filed: 1951-08-03
Abstract: Sulphonated compounds mixed or dissolved with water and/or sulphuric acid, obtained as by-products in the manufacture of substituted diphenyl-trichloroethanes, are desulphonated by injecting steam into the mixture without external heating and separating the desulphonated compound from the condensate, the temperature being maintained constant at a temperature just below the boiling point of the ternary mixture-sulphonic acid, water, sulphuric acid-by controlling the supply of steam.  An example is given in which steam is introduced into a mixture of sulphonated mono-chlorobenzene, sulphuric acid and water resulting from the manufacture of D.D.T., the supply being controlled to keep the temperature at about 190 DEG  C. Monochlorobenzene passes into the vapour phase and is condensed. The process is applicable also to the desulphonation of sulphonated anisole and sulphonated xylene, obtained as by-products in the preparation of dimethoxydiphenyl-trichloroethane and di-xylenyl-trichloroethane, respectively.
Patent GB-139747-A (GB)
Title: Concrete casings for reinforced concrete girders and columns
IPC: E04G13/02
Filed: 1919-07-25
Abstract: 139,747. Chavanne, A. March 6, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Reinforced - concrete columns and girders.- Concrete casings are provided for casting reinforced-concrete girders and columns in situ, such casings forming part of the structures. Fig. 1 shows the casing 1 in two parts for a column, the casing being held in position temporarily by irons 2. Reinforcements 5 are placed in the interior before filling in with concrete. Fig. 3 shows a girder comprising a reinforced concrete casing 6 and extensions 11 having one end supported on the shoulders 7 and the other end 12 embedded in the concrete 8. The hooklike ends 10 of the reinforcements are likewise embedded in the concrete 8.
Patent GB-168476-A (GB)
Title: An automatically operating lubricator for pulleys or other rotating members
IPC: F16N9/02
Filed: 1921-05-03
Abstract: 168,476. Mace, A. J. W. May 3, 1921. Centrifugal-action and force-feed lubricators; indicating.-A lubricator secured to a pulley or other rotating member and supplying oil to the bearing whenever rotation ceases depends for its action on the change of temperature of the air in the lubricator produced by the rotation. The lubricator comprises telescopic tubes a, b, Fig. 2, pressed apart by a spring h and provided with nipples c, c<1> fitting in holes f, f<1>, in the rim F and boss G of a pulley respectively. During rotation, oil contained in the lubricator is withdrawn to the outer end, but when rotation ceases a limited quantity of oil is discharged through a small hole e in the nipple c<1> by reason of the increased pressure of the warmed air in the lubricator. A spring i is secured at one end to the tube a and at the other end is provided with a hook j which is adapted to engage a flange h of the nipple c<1> when the lubricator is removed from the pulley, to prevent the tubes from being forced apart by the spring. In a modification, a single tube a, Fig. 3, has a sliding gland m pressed by a spring h into contact with a plug n screwed into the rim of the pulley. A wire p attached to the plug serves to indicate the amount of oil in the lubricator and also prevents dropping the plug when removed for filling purposes.
Patent GB-201900-A (GB)
Title: Improvements in and relating to electrodes having a high electron emissivity and method of making them
IPC: H01J9/04
Filed: 1923-07-18
Abstract: 201,900. British Thomson - Houston Co., Ltd., (Assignees of Fernberger, H. M.). Aug. 3, 1922, [Convention date]. Vacuum tubes.-An electrode having high electron emissivity is prepared by intimately mixing a reducing agent such as carbon, and an oxide, with a refractory metal such as tungsten, sintering the mixture into an ingot, and mechanically working the ingot. The oxide may consist of thoria, calcium oxide, or other oxides of the alkaline or rare earths. The powdered materials are pressed into a bar 1/4" square before sintering. In one method powdered tungsten is prepared by reducing in hydrogen tungstic oxide made in any known way, as by firing in the air para ammonium tungstate. crystal formed from a solution of ammonium tungstate, and then mixing with the powdered carbon. In the preferred method powdered carbon is mixed with powdered thoriated tungsten prepared by evaporating an ammonium tungstate solution to obtain crystals of para ammonium tungstate, which are dried, powdered and mixed with sufficient thorium hydroxide to give a mixture of tunstic oxide and thoria containing from 0.5 to 1.6 per cent by weight of thoria. This mixture when reduced in hydrogen produces tungsten containing 0.6 to 2 per cent of thoria. The thorium hydroxide may be prepared by dissolving thorium nitrate in water, precipitating with a slight excess of ammonia water, and washing the precipitate free of ammonium salts. The para ammonium tungstate crystals and thorium hydroxide are mixed by ball milling until the mixture becomes a creamy mass, which is then dried, passed through a sieve, and heated in thin layers in silica dishes to convert it. into tungstic oxide containing thoria, which is then reduced in hydrogen. Carbon, in the form of lamp black, up to about 0.5 per cent, but preferably 0.3 per cent by weight, is added and thoroughly mixed and sifted. or thoriated tungstic oxide is mixed with sufficient powdered carbon to reduce the oxide, and then fired in a crucible in the absence of air to reduce tungstic oxide to thoriated tungsten containing carbon. The wire after drawing may be brought to a temperature of 2200‹ K. for a few minutes. Specification 184,446 is referred to.
Patent GB-744088-A (GB)
Title: Lawn and garden tool
IPC: A01G3/06
Filed: 1953-07-04
Abstract: 744,088. Edge-trimmers. CHADWICK, E. L. July 4, 1953, No. 18608/53. Class 6 (2). A tool for edging and trimming grass comprises a toothed disc 35 mounted on an axle 20 for rotational movement with a support wheel 30, a two-bladed shear plate 45 mounted on the axle, and resilient means urging the plate 45 against the disc 35 so that the plate may be axially displaced from the disc upon contact of the plate with a bent tooth on the disc or a foreign obstacle in the grass. As shown, the plate 45 is urged towards the disc by a spring 50 and is attached to a forked bracket 15 by means of a bolt 51, a spring 54 holding the plate resiliently against the bracket. The disc is bolted to the wheel, but in a modification the disc may be bolted to a flange associated with and spaced from the wheel. In a further modification, two wheels may be provided.
Patent GB-595072-A (GB)
Title: Improvements in directive radio systems and the like
IPC: G01S1/02
Filed: 1944-09-29
Abstract: 595,072. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. Sept. 29, 1944, No. 18685. Convention date, Dec. 6, 1943. [Class 40 (v)] The aural distinction between signals in a keyed overlapping beam beacon or directional receiving system is increased by raising the energy level for short intervals of time covering the beginning and end of each keyed signal element. In the radio course beacon of Fig. 1, the output from modulator 12, which is fed with radio-frequency from source 10 and tonefrequency from source 11, is fed to power amplifier 13, the output of which is applied to the aerial system 14. Overlapping radiation diagrams are produced alternately through the operation of keyer 17 controlling the keying relay coil 18 and contacts 19. To produce the increase of amplitude at the beginning and end of each keyed signal element, the keying wave is differentiated at 28 and fed to a clipper 29 and a combined clipper and inverter 30 which produce output pulses having a sharp leading edge, occurring prior to actual operation of relay 18 and a sloping trailing edge occurring just after the operation of relay 18 has been completed. These pulses are.applied across the resistance 25 which is in series with the choke 24 and the H.T. supply 23 for the modulator and power amplifier. The tone modulated carrier output for the on- and off-course conditions, Fig. 2a and Fig. 2b respectively, thus consists of normal signal levels 31 for the interlocking signals A and N with increased energy levels 32, 33<1> at the leading and trailing edges of each dot and dash. The demodulated signals are indicated in Fig. 2c. In a simpler circuit for producing the desired effects, Fig. 3, the keying relay 18 is controlled by contacts 45, 47 operated by a cam 40. Contact 45 and contact 46 or 48 normally connect a resistance 44 in parallel with condenser 43, connecting to earth the H.T. lines 26, 27 to the modulator and power amplifier. As contact 45 moves from one section of cam 40 to another section, the resistance 44 is first disconnected, allowing the H.T. voltage to rise due to charging of condenser 43 and is then reconnected causing the voltage to fall as the condenser discharges through the resistance. In a modification, Fig. 4 (not shown), separate moving contacts co-operate with the cam and are so shaped that the raised cam surfaces do not require to have gradual slopes. In a further modification, Fig. 5 (not shown), the keying relay is made slow acting by means of a dashpot and contacts, which operate respectively before and after the keying contacts, are employed to make the necessary circuit changes in the H.T. connections to the modulator and power amplifier. The invention may be applied to a directional receiving system of the overlapping beam type, Fig. 6 (not shown), a control circuit increasing the output amplitude of the receiver during switching.
Patent GB-421558-A (GB)
Title: Distant control device for rapidly emptying liquid containing tanks
IPC: F16K31/122
Filed: 1934-06-25
Abstract: 421,558. Fuid-actuated valves. ADELMANN, H., 22, Rue Marengo, Courbevoie, Seine, France. June 25, 1934, No. 18738. Convention date, June 24, 1933. [Class 135] Valves controlled by pilot or relay valves.-A discharge valve for a tank such as an aircraft fuel tank is held on its seat by a spring and the weight of liquid above it and is opened by a fluid pressure device controlled from a distance. Secured to a valve seat 3 at the bottom of the tank is a spider 6 carrying a cylinder 7 in which works a piston 8 connected by a rod 9 to a valve 10. The valve is norm. ally held on its seat by the tension of a spring 16 and is raised by admitting compressed carbonic gas to the cylinder 7 through a pipe 19 controlled by a valve 22 and hand-lever 24. The rod 9 has a bore 11 and extends through the top of the valve 10 to a valve 14 normally kept closed by a spring the lower end of the bore communicating with an annular space 12 above the piston 8 which is put into connection with the cylinder 7 by passages 13, Fig. 3, when the piston is raised. The compressed gas then travels through the bore 11, opens the valve 14, and helps to force out the liquid from the tank. The hand-lever 24 in its alternative position opens a valve 23 to vent the cylinder7 to atmosphere. A pleated hose may be secured to the valve seat 3, and extended when the piston 8 is raised, to convey the liquid to the desired place of discharge.
Patent GB-629197-A (GB)
Title: Improvements in or relating to ironing machines
IPC: D06F65/06
Filed: 1947-07-15
Abstract: 629,197. Ironing-machines. HORTON MANUFACTURING CO. July 15, 1947, No. 18792. Convention date, Nov. 22, 1944. [Class 138 (ii)] In an ironing-machine, the mechanism 20 for rotating the roller 11 and for effecting relative movement between the roller and another ironing element 12 is mounted inside the roller on a support 14 which extends upwardly from a base 10, a shroud 35 secured to the base enclosing that part of the support 14 outside the roller. The support 14 is bolted to the base 10 and its upper end is shaped to form a cover 17 for the mechanism 20 which is driven from a fan-cooled motor 23 also carried by the support 14. The mechanism casing has a bearing 21 for supporting the roller shaft and the shoe 12 is actuated from a rock-shaft 25 through known means. A second rock-shaft 30 extends from the mechanism casing and is connected through linkage with a control handle 34 to control the driving mechanism. The shroud 35 is louvred and encloses most of the support 14, a gap underneath the roller being closed by a cover 43. A metal ring 45 bridges the gap between the shroud and the roller and is secured to bosses 46 on the support 14. The ring provides a smooth surface on which the hemmed end 51 of the roller covering can ride.
Patent GB-1332765-A (GB)
Title: Attachment device for mounting an implement on an upright beam
IPC: A47G29/02
Filed: 1972-04-24
Abstract: 1332765 Brackets E CAPAUL 24 April 1972 [23 April 1971] 18807/72 Heading A4B [Also in Division E1] A bracket for mounting a pail 11 or other implement on an upright 13, e. g. a ladder stile, comprises a bar 12 provided at one end with an eye 18 for engagement by an implement support frame 21 or 30 and at the opposite end with a pair of bolts 14, 15 projecting perpendicular to the bar 12 for frictional engagement with the upright 13 on opposite sides of the latter under the weight of the supported implement, the spacing apart of the bolts 14, 15 being adjustable. As shown, one bolt 15 is fixed and the other 14 is lockable by a nut 17 at any desired position along the length of a slot 16 in the bar 12. The frame 21 or 30 includes an S-shaped hook portion 20 or 29 for releasable engagement with the eye 18. In one embodiment the pail 11 bears on the frame 21 with its handle 28 engaged around the frame 21. In another embodiment, Fig. 6, the implement 32 is secured by straps to a suspension device 35 hooked over the frame 30.
Patent GB-427593-A (GB)
Title: Improvements in iron alloys
IPC: C22C38/14
Filed: 1934-06-26
Abstract: Those of the alloys for permanent magnets specified in the parent Specification which contain titanium or tantalum or both are modified in one or more of the following ways: (1) the tungsten may be lower than 10 per cent or the molybdenum higher than 12 per cent provided that the sum of the tungsten and molybdenum is 2-30 per cent; (2) the carbon may be raised to 0,55-1 per cent; (3) the total content of titanium and tantalum may be 10-15 per cent; (4) the cobalt may be partly replaced by nickel.  The alloys may be quenched from about 1100-1400 DEG  C., and thereafter reheated to about 400-800 DEG  C.
Patent GB-668328-A (GB)
Title: Improvements in or relating to laminated paper
IPC: D21H27/32
Filed: 1949-07-18
Abstract: 668,328. Compound fabrics; finishing edges of sheet material. AMERICAN REENFORCED PAPER CO. July 18, 1949 [July 26, 1948], No. 18880/49. Classes 42 (i) and 140. A multi-ply sheet is composed of at least two superposed layers 2, 4, of paper-like material united by an interposed layer of adhesive 6 which is substantially thinner at and adjacent the lateral edges than in the remainder. The adhesive may be asphalt or an asphalt-like material; it may be applied to both layers before these are united, and reinforcing fibres 8, 10 may be embedded in it. The portion of the sheet which is to become the edge may be compressed by passing between a roller 12a having adjustable spring-pressed bearings, and a supporting roller 16a. This causes the adhesive to be extruded from the compressed zone, which is then slit by a cutter such as the wheel 18a. In the case of box stay tapes longitudinal fibre reinforcement only may be provided, and one of the layers may be of creped paper.
Patent GB-1188609-A (GB)
Title: Connector Device
Inventor: GOWER ROGER LEROY
IPC: F16G15/04
Filed: 1968-04-22
Abstract: 1,188,609. Chain connectors. R. L. GOWER. 22 April, 1968 [5 June, 1967], No. 18901/68. Heading F2Q. An S-shaped chain link connector 10 is integrally formed at its hook-shaped ends 11  with terminal plates 12 which prevent unintentional release of the connector from end links of chain lengths connected thereby, the plates 12 each having a concave recess 13 cut from a D- shaped periphery 14 such that easy connection, or release, of the connector with the end chain links, which are partially obstructed by loops of adjacent chain links passing therethrough, is effected by registering the plate recess 13 with the said adjacent chain link loop and pivoting the connector about this loop to pass the connector plate through the link to be connected.
Patent GB-613661-A (GB)
Title: Improvements in manure-spreading machines
IPC: A01C3/06
Filed: 1946-06-25
Abstract: 613,661. Manure distributers. HART, SON, PEARD & CO., Ltd., JONES, P. E., and ROBERTS, R. W. June 25, 1946, No. 18940. [Class 6 (i)] Relates to a manure distributer having a moving conveyer operating over the floor of the machine to move the manure rear-wardly towards a rotating distributing device by way of rotating paddles or forks. According to the invention the paddles, &c., are provided with cutter blades which partially disintegrate the material before passing it to the distributer. The spider 16 having radial arms 17 is mounted on shaft 15. Section bars 20, parallel to shaft 15 are secured to the end of arms 17. The U-shaped cutting blades 21 have bases 22 bolted to bars 20, the cutting edges 25 being inclined to the radii of the shaft.
Patent GB-201556-A (GB)
Title: Improvements in or relating to fuel atomizers for internal combustion engines
IPC: F02M61/18
Filed: 1923-07-24
Abstract: 201,556. Aktiebolaget Atlas Diesel. July 25, 1922, [Convention date]. Cylinders receiving liquid fuel.-Liquid fuel without spraying air is delivered past a valve 3 to a series of diverging passages 6 leading to a chamber 5 having one or more orifices 4 opening into the cylinder. The plate 2 is constructed of tempered steel or other hard material. The distance between the upper edge of an orifice 4 and the opposite wall of the chamber 5 is equal to or less than the radius of the orifice.
Patent GB-596134-A (GB)
Title: Improvements in or relating to motor-generator starting systems
IPC: H02P1/16
Filed: 1945-07-24
Abstract: 596,134. Motor control systems. GIBSON, H. C. July 24, 1945, No. 18984. [Class 38(iii)] [Also in Group XXXV] An induction motor coupled to another dynamo-electric machine, which normally functions as a D.C. generator, is associated with switching system whereby the second machine may be utilised as a motor to start the A.C. machine, the switches having a normal position in which the second machine is connected as a motor and being automatically operated to connect it as a generator when a predetermined speed is reached. In the system shown, normally closed contacts, 11, 12, 13 of a contactor 10 connect the winding 1 of the A.C. machine and the armature 3 and series field 4 of the second machine in series across the A.C. supply 5, 6 for starting. At a predetermined speed the voltage generated in winding 1 causes a relay 8 to pick up, thereby energising contactor 10 which at contacts 11, 12 connects the armature and series field of the second machine to the D.C. lines 18, 19, energises its shunt field 7 over contacts 14, 15 and connects the A.C. winding 1 directly across the A.C. supply over contact 13. Relay 8 holds in over contact 16.
Patent GB-481593-A (GB)
Title: Improvements in adhesive textile tapes
IPC: H01B3/50
Filed: 1936-07-09
Abstract: 481,593. Compound fabrics. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and WILSON, A. E. July 9, 1936, No. 19081. Drawings to Specification. [Class 140] An adhesive tape suitable for electrical insulation consists of a woven fibrous tape folded longitudinally to provide one selvedge and one (double) free edge, adhesive lying between the plies and penetrating through them to their exterior surfaces. The adhesive is applied as a hot liquid which on cooling to ordinary temperatures sets and hardens but remains sticky. Suitable adhesives are (parts by weight) : (1) natural copal resin 80, castor oil 20, (2) pitch 30, castor oil 16, a phenol-formaldehyde synthetic resin sold under the Registered Trade Mark " Homac No. 1 " 54. The tape, e.g. bias, may be impregnated with adhesive before or after folding. A coil of folded, unimpregnated tape is placed in a bath of the adhesive under vacuum (to remove entrapped air), uncoiled, passed through the bath and between rolls placed in the adhesive bath or near thereto or in both places, cooled and coiled. The strip may be folded while still immersed in the bath, after impregnation. Specification 436,876 is referred to. According to the Provisional Specification the tape may be made by joining two separate tapes.