baber/WOPTO huggingface dataset:
Patent GB-502304-A (GB)
Title: Improvements in and relating to devices for cooling liquid fats and fatty emulsions
IPC: A23D7/05
Filed: 1938-05-27
Abstract: 502,304. Solidifying liquids by cooling. HANSEN, J. BRIX-. May 27, 1938, No. 15855. Convention date, June 18, 1937. [Class 29] In apparatus for solidifying fatty substances Comprising an internally cooled member 1 and a concentric cooled casing 4 separated by a narrow annular space 6 through which the material flows from an inlet 17 to an outlet 18, a rotary member 7 provided with inner and outer scrapers 8, 9 is located in the annular space and removes solidified material from one wall and diverts it through openings in the member towards the other wall. The scrapers may be formed by struck-up tongues or be attached to the rotary member by bolts or rivets, and are located at points spaced so that the whole of the cooling surfaces are treated.
Patent GB-475667-A (GB)
Title: Improvements in or relating to resistance thermometer elements
IPC: H01C3/00
Filed: 1936-06-06
Abstract: 475,667. Wire resistances. ELLIOTT BROS. (LONDON), Ltd., HARBEN, D. C., and COLLINS, F. G. June 6, 1936, No. 15920. [Class 37] [Also in Group XX] A wire resistance element for a resistance thermometer is wound on a support of consolidated alumina and the support and resistance wire are embedded in a layer of consolidated alumina. Alumina powder is mixed with distilled water to form a paste, which is extruded through an orifice to form a rod. This is cut to the required length to form the support 1, Fig. 1, and two platinum wires 2 are inserted into one end to form leadin connections. The support is then baked or sintered at about 1500‹ C. Platinum resistance wire 3 is wound non-inductively on the support, the ends being welded to the leadin wires 2. The element is then annealed for thirty-six hours at about 1000‹C and gradually cooled. The resistance is then adjusted to the required value and a layer 4 of the alumina paste is applied and dried at about 200‹ C. Glaze 5 is then applied to the outer surface and the element is fired at 900‹ C. for 15 minutes. The lead-in wires may alternatively be bent as shown at 6, Fig. 2.
Patent GB-160469-A (GB)
Title: Improvements in or relating to the tensioning of cords, yarns, or other flexible material being unwound from spools, bobbins, reels, drums, cheeses or coils
IPC: B65H59/04
Filed: 1916-11-07
Abstract: 160,469. Rankin, E. L., and Austin & Sons, Ltd., J. Nov. 7, 1916. Creel arrangements. -Yarn or other flexible material being drawn off f r o m bobbins, spools, drums, reels, cheeses, or coils is tensioned by electromagnetic means. The bobbin &c. e, or the base upon which the cheese or coil is mounted, is provided with a plate f of paramagnetic material insulated from the spindle a. A coil c surrounds the spindle a, and when energized magnetizes the flange b. A tube provides a bearing for the bobbin &c. A magnetic clutch plate may be arranged also at the opposite end of the bobbin, the plate carrying a non-magnetic socket arranged to slide on but not rotate on the spindle a. If the bobbins are arranged on a rotary spider as in a braiding machine, the current for the coils c may be picked up from a contact ring by suitable, brushes.
Patent GB-318478-A (GB)
Title: Improvements relating to animal traps
IPC: A01M23/34
Filed: 1928-05-31
Abstract: 318,478. Wawn, F. T., amd Wonnacott, F. J. May 31, 1928. Animal traps.-In a rabbit trap in which a lever b is pivoted on a frame a, and is thrown from its set position by a spring c<1>, when the rabbit is caught in a noose, a wide ring a<1> is provided through which the noose wire f passes and against which the rabbit is thrown in order to break its neck. The ring is preferably rectangular and integral with the frame a. The lever b is released by the tripping of a catch e, which engages a lug a<4> on the frame. The trap is secured to the ground by a hooked spike h, which hooks on to the frame, or is passed through the hole a<5>.
Patent GB-543722-A (GB)
Title: Apparatus for removing solids from liquids
IPC: C02F1/52
Filed: 1940-11-01
Abstract: 543,722. Purifying liquids. PATERSON ENGINEERING CO., Ltd. (International Filter Co.). Nov. 1,1940, No. 15999. [Class 46] In apparatus for purifying water or other liquid in which the liquid passes successively through a lower reaction chamber and an upper separating chamber, the separating chamber is provided with one or more return openings into the reaction chamber so that separated solids can on account of their greater density return to the reaction chamber by a path different from that through which the liquid rises. As shown in Fig. 1 the separating chamber is formed within a conical partition 22 extending downward within the reaction chamber; The reaction chamber is provided with paddles 16 supported from a rotating vertical shaft 13. Water for treatment and reagent are supplied by separate pipes opening within an open-ended sleeve 20, the end of the water pipe 18 being directed tangentially. Solid matter separating in the upper chamber collects in funnels 25 and is returned to the reaction chamber through pipes 26. Clear water passes away over the weir 23. As shown in Fig. 3, the reaction space 30 is at the lower end of a coaxial separating chamber 31 and there is a cylindrical storage space 32 above. Water and reagent are supplied through pipes 33, 34 respectively, the pipe 33 being arranged so that rotary movement is given to the water in the space 30. Solid matter is returned from the separating chamber through funnels 36 and pipes 37. A modified form of funnel 38 with return pipe 39 is shown. Deflectors 40 may be provided so that the rotary motion of the water will promote flow down the pipes 37. It is stated that steam-projecting impellers maybe provided for this purpose. A further modified form of apparatus is shown in Figs. 5 and 6. The separating space is fitted with vertical baffles 2 Water is supplied to the reaction space by a pipe 14 entering within an open-ended curve 16, and reagent by a pipe 18. A steam-projecting impeller 17 is arranged between the ends of these pipes. A funnel 26 is supported by a sleeve 19 which surrounds the vertical shaft 11 of agitating paddles 12. Solid matter passes from the funnel 26 through a pipe 27 to the interior of the casing 16 or through a pipe 28 to the space behind a partition 23 from which it . may be discharged through an outlet 24.
Patent GB-898826-A (GB)
Title: Method for the preparation of therapeutic non-adhesive, ventilating materials
IPC: A61L15/26
Filed: 1959-05-11
Abstract: Non-adherent dressings are made by applying a polysiloxane film to a porous material in such a way as not to interfere with its porosity. The base material may be a woven fabric, such as nylon taffeta, or a synthetic sponge, and the film is preferably polymerized after a solution of the constituents has been applied, either by spraying or dipping.  In one example, polyurethane sponge is sprayed with a solution of methyl hydrogen siloxane in benzol, which is then polymerized by placing the sponge in an oven.  In the case of woven or knitted fabrics, the coating may be applied to the fibre before it is manufactured into the fabric.
Patent GB-372122-A (GB)
Title: Manufacture of mixed esters or ether-esters of polymeric carbohydrates
IPC: C08B3/00
Filed: 1931-06-02
Abstract: The process of making mixed esters or ether-esters of cellulose or other carbohydrates in which esterification of a cellulose &c. derivative still containing free hydroxyl groups is effected with an acid halide in the absence of an agent that binds hydrogen halide, is carried out in the absence of water and with such precautions as will protect the esterification product from the action of the hydrogen halide formed in the reaction.  Thus, the hydrogen halide may be eliminated by working under reduced pressure, or by the passage of a dry indifferent gas such as nitrogen or carbon dioxide through the reaction chamber during the esterification process.  Alternatively, the reaction may be carried out in the presence of an indifferent liquid which dissolves only the acid chloride, but not the initial carbohydrate derivative and the product of the esterification.  The starting materials may be aliphatic, araliphatic and aromatic ethers, hydroxyethers, esters, ether-esters and mixed esters of cellulose, starch, dextrin and agar-agar; and the acid halides, which may be used in the gaseous phase or in the liquid form with or without a diluent, may be derived from the lower or higher substituted or unsubstituted aliphatic, aromatic or alicyclic carboxylic acids. In examples, hydroxypropyl cellulose is esterified with butyric acid chloride in a vacuum at 60-65 DEG  C.; hydrolysed cellulose acetate is esterified with cocoa-fatty acid chloride under reduced pressure at 50-70 DEG  C.; fibrous hydroxyethyl cellulose is suspended in a solution of acetyl chloride in petroleum ether, and the mixture allowed to stand at room temperature for several days to effect the desired acetylation.  The esterified products may be used for preparing lacquers, films, artificial threads, electric insulating materials, impregnating solutions, safety glass, artificial leather, adhesive substances and moulded articles.
Patent GB-1310442-A (GB)
Title: Polymers of 2-pyrrolidone
IPC: C08G69/14
Filed: 1970-04-06
Abstract: 1310442 Polypyrrolidone RADIATION RESEARCH CORP 6 April 1970 [7 April 1969] 16108/70 Heading C3R A process for producing solid polymers of 2- pyrrolidone comprises heating 2-pyrrolidone with an alkali metal bicarbonate polymerization catalyst at 120‹ to 200‹ C. for 30 to 180 minutes, cooling the heated mixture to a polymerization temperature not exceeding 100‹ C., and polymerizing it at this temperature after removal of water formed from reaction of the monomer and bicarbonate and any other water. Use of a co-catalyst is stated not to be necessary and it is preferred that the bicarbonate is the sole catalyst to ensure a narrow molecular weight distribution. It is also possible to use CO 2  as a co-catalyst; it may be bubbled through the monomer/bicarbonate mixture before, during or after the heat activation step. Polymerization may be effected in bulk or in dispersion and the monomer is desirably purified; suitable purication techniques are described. In examples K, Na, Rb and Cs bicarbonates are used while comparative examples illustrate the use of K pyrrolidonate and acetyl pyrrolidone or CO 2  as catalyst and also KHCO 3  with heat activation at only 114‹ C. for 15 minutes. The products of the invention are white and may be melt extruded, e.g. as fibres, films or rods.
Patent GB-1379994-A (GB)
Title: Method and apparatus for welding metal strips
IPC: B23K11/087
Filed: 1972-04-07
Abstract: 1379994 Welding by pressure; strip joining apparatus BRITISH FEDERAL WELDER & MACHINE CO Ltd 19 June 1973 [7 April 1972] 16109/72 Headings B3R and B3A A method of welding together the ends of metal strips 20, 23 comprises overlapping the ends of the strips (Fig. 4) heating the overlapped ends while passing a pair of planishing rolls 10 across the strips to deform the ends and provide a pair of welding surfaces 30 and subsequently welding the ends together at the welding surfaces (Fig. 7). As a preliminary step the ends of the strips are sheared. Electric current is supplied through the planishing rolls 10 to heat the overlapping ends and after treatment with the planishing rolls the strip 23 is withdrawn slightly to bring the two strips into alignment at the welding surfaces. Welding rolls 11 are then traversed across the strip ends, welding current being supplied via the rolls 11. The planishing rolls may follow up the weld rolls to improve the surface finish in the weld area. Reference is made to the welding of stainless and special alloy steels as well as mild steel.
Patent GB-515482-A (GB)
Title: Improvements in and relating to the manufacture of ammonium sulphate
IPC: C01C1/242
Filed: 1938-05-30
Abstract: 515,482. Ammonium sulphate. BELL, J., and IMPERIAL CHEMICAL INDUSTRIES Ltd. May 30, 1938, No. 16147. [Class 1 (ii)] In the production of ammonium sulphate by the saturator process from sulphuric acid and ammonia-containing gases either or both of which contain pyridine or other oily impurities of a basic nature, crystals of good colour are obtained by diverting and neutralizing or making alkaline a part of the mother liquor by means of ammonia or ammonia-containing gases, allowing to stand, removing impurities which rise to the surface and returning the treated liquor to the mother liquor. Treatment may'be applied to part of the liquor from the saturator, to that overflowing the draining table or that returned from the centrifuge, or to the feed of mother liquor from the mother liquor well.. As shown, mother liquor is treated in saturator 1 with ammonia-containing gases passing through pipe 7 and the liquor overflows at 4 to a seal port 5 and is recirculated by pump 9 to acid-replenishment vessel 3 ; part of the liquor is diverted to a vessel 14 where it is neutralized or made alkaline by ammonia or ammonia-containing gases passing through pipe 15,'and, after removal of impurities, is returned to vessel 3 through pipe 17. U.S.A. Specification 1,999,257 is referred to.
Patent GB-1120943-A (GB)
Title: Selective hydrogenation of glyceride oils
IPC: C11C3/12
Filed: 1964-04-20
Abstract: Edible glyceride oils containing polyunsaturated fatty acid residues are selectively hydrogenated by contact with hydrogen at an elevated temperature in the presence of a selective catalyst in a two-stage process, the first stage of which comprises treating the oil with hydrogen at a temperature of not more than 150 DEG  C., using such a combination of hydrogen pressure, agitation intensity and amount of catalyst that within a period of at most 2 hours the initial iodine value (I.V.) of the oil has decreased by an amount that is at least 0.001 (I.V.)2, and the second stage of which comprises hydrogenation at a temperature of 150-200 DEG  C.  A suitable catalyst is nickel containing 2-4 wt. % sulphur supported on kieselguhr, and oils which may be treated include fish, soyabean, whale, sunflower, ground nut, rapeseed, linseed and cottonseed oils. Typical products have a dilatation curve such that D20- 30 is at least 300, a melting point between 35 DEG  C. and 40 DEG C, and contain no detectable quantity of aromatic fatty acids.
Patent GB-186113-A (GB)
Title: A sectional umbrella or sunshade
IPC: A45B25/00
Filed: 1921-06-14
Abstract: 186,113. Ventris, F. W. June 14, 1921. Folding and like umbrellas; sticks.-The stick or tube of an umbrella or sunshade is made in three separate sections a, a<1>, a<2> connected together by two dowels b, of which one only is shown, which have reduced ends b<1>, b<2> fitting in the sectdons and annular recesses fitting outside, as shown. Tapped holes in the ends b<2> engage screwed plugs C permanently secured in two of the sections. The ends b<1> are permanently secured in place.
Patent GB-497230-A (GB)
Title: Manufacture of mono-chloronaphthalene
IPC: C07C17/12
Filed: 1937-06-14
Abstract: Monochlornaphthalene is prepared by blowing chlorine through a capillary into a countercurrent of naphthalene vapour.  The apparatus may be that described in the parent Specification. Catalysts include iron or its compounds, iodine or light.  In an example naphthalene, to which ,01 per cent of its weight of iodine is added gradually, is boiled in a still, the ascending vapours reacting in a chamber into which the chlorine is blown downwards.  Excess of naphthalene is removed by distillation, and the product fractionated to separate the small quantity of dichlornaphthalene present.
Patent GB-404332-A (GB)
Title: Process of and apparatus for standardizing magnetic cores
IPC: H01F1/22
Filed: 1932-06-10
Abstract: 404,332. Inductances. JOHNSON LABORATORIES, Inc., 609, West Lake Street, Chicago, U.S.A.-(Assignees of Polydoroff, W. J. ; 609, West Lake Street, Chicago, U.S.A.) June 10, 1932, No. 16461. Convention date, June 27, 1931. [Class 37.] In order to standardize the losses in cores or compressed core material made of compressed powdered and insulated magnetic particles, particularly cores for inductance coils used for radio-frequency currents, the core is made with losses below the standard and the eddy-current losses are increased, after finishing the core, by breaking down the insulation of some of the particles. The core 1 is provided with a winding 2 forming part of a resonant circuit containing an ammeter 4 and supplied with an electromotive force of a certain frequency. The variable condenser 3 is adjusted until the circuit is in resonance with the applied electromotive force, the amplitude of the current at resonance being set as the standard to which all the cores are to be adjusted. A circuit consisting of a source 5 of high potential and electrodes 6 is applied directly to the core so as to form conductive paths within the core by breaking down the insulation between some of the particles, thereby increasing the eddy-current losses. This is continued until the deflection of the ammeter 4 is decreased to the standard reading. The core may be rotated during this process so that particles lying in a plane are affected by the discharge. The electrodes may be applied in the direction of the flux, as shown in dotted lines, in which case the permeability also is increased.
Patent GB-1097576-A (GB)
Title: Improvements in tractors
IPC: A01B63/111
Filed: 1965-04-20
Abstract: 1,097,576. Tractor power lift mechanisms. MASSEY-FERGUSON Inc. April 20, 1965 [April 17, 1964], No. 16467/65. Heading A1P. A tractor power lift mechanism has a position control linkage 140, a draft control linkage 115 and a linkage 160 for controlling the fluid pressure in actuators 18 and is characterized by a manual lever 210 which can be selectively engaged with any one of the linkages. Each of the linkages acts on a main control valve 35 through a lost motion connection and the linkages are controlled respectively by the manual lever 210 through a cam 152, a control element 136 and a cam 199 which are all rotatably mounted on a shaft 137. The end of the shaft 137 is engaged by a cam 222 which can be turned when the manual lever 210 is depressed to move a key 213 on the shaft 137 into engagement with respective slots on the cams 152 and 199 and the control element 136 in order to couple the manual lever to the control linkages. The lever 210 is arranged so that movement of this lever around a quadrant rotates the shaft 137. The width of slot in the quadrant is so arranged that the lever 210 can be depressed to engage cam 222 only when it is in one extreme position. The position control linkage includes an extensible link 144 which allows a rapid movement of the manual lever 210 to be absorbed by the linkage which then operates the control valve 35 more slowly. Draft control is initiated by the upper link moving against a biasing leaf spring 23 to operate a lever 116 and thus the draft control linkage. This linkage includes a part which engages an abutment when the lift links are in the transport position whereby the draft control linkage is made completely inoperative in the transport position. The pressure control linkage determines the pressure existing in the ram 18 at which a valve 161 operates to supply pressure fluid to a servo 162 for operating the main control valve 35. The piston rod 167 has a one-way connection with the piston 164 of the servo. A dashpot 80 dampens movement of the control valve 35 and valves 55, 56 maintain the pressure drops across the valve 35 substantially constant. It is stated that the above hydraulic control system can form part of a control system on the tractor supplying all the fluid power requirements such as auxiliary apparatus, steering and brakes. In this case a valve 283 responds to a below-minimum pressure in the system to direct all of the available pressure to the steering and brakes and shut down the supply to the lift mechanism.
Patent GB-565369-A (GB)
Title: Improvements in x-ray tubes
IPC: H01J35/16
Filed: 1942-11-23
Abstract: 565,369. R÷ntgen-ray tubes. MACHLETT LABORATORIES, Inc. Nov. 23, 1942, No. 16578. Convention date, Jan. 26, 1942. [Class 39 (i)] [Also in Group XXXVI] The leads to the cathode 18, Fig. 2, are brought out to terminals 25, 26 mounted on an insulating disc 23, within a re-entrant stem 12. A cable 34 slides into the re-entrant stem and spring contacts 36, 38 on its end engage terminals 25, 26. When in position, the terminals and contacts are sealed off from the atmosphere by insulating cylinder 39 abutting against insulator 23. The cylinder 39 may be synthetic rubber and the space it encloses may be filled with petroleum jelly. The cable is secured to the casing 29, Fig. 1, by a flare 41. Cathode 18 is mounted between two projecting parts of a focusing block 16. The Specification as open to inspection under Sect. 91 describes a copper anode 39, Fig. 4 (cancelled), provided with cooling ducts 42 and inserted into the other end of the tube. Rays emitted at an angle of 6 degrees from the target layer 38 pass through beryllium windows 46 brazed across openings 36 in the metal wall 34. A metal cap 48 with a conical angle of 6 degrees surrounds this part of the tube and forms part of the grounded casing. The deposition of excessive material upon the target is prevented by a wire 47, Fig. 2, passing directly in front of the cathode 18. This subject-matter does not appear in the Specification as accepted.
Patent GB-145459-A (GB)
Title: Improvements in indicators for the turning of aircraft about a vertical axis
IPC: G01C19/42
Filed: 1920-06-18
Abstract: 145,459. Ansch³tz & Co. March 24, 1917, [Convention date]. Gyroscopic apparatus.- A turn-indicator for aircraft comprises a simple pendulum 6 and a gyroscopic pendulum 10, mounted in co-linear bearings 4, 5 and 7, 8 respectively, the line of these bearings lying in the direction of flight. The axis of rotation of the rotor 12 is parallel to the transverse axis of the aircraft. The pendulums carry pointers 13, 14 moving over a common scale 15, turning of the aircraft about the vertical being indicated by relative movement between the pointers. The dimensions and speed of rotation of the gyroscope are preferably so adjusted that the gyroscopic deflexion on turning is approximately equal and opposite to the deflexion of the pendulum due to centrifugal force, so that the pendulum 10 remains approximately in the true vertical. The pendulum 6 may be replaced by a liquid level.
Patent GB-168702-A (GB)
Title: Improvements in or connected with doors for bulkheads and the like
IPC: E05C9/06
Filed: 1920-06-19
Abstract: 168,702. Mechans, Ltd., and Moyes, J. Y. June 19, 1920. Bulkhead doors.-A pivoted bulkhead or like door is looked by a connected series of vertically movable bolts which engage clips on the frame. When the door is open the bolts are retained in the withdrawn position and are released and brought into position by gravity when the door is closed. The door A is hinged at A<1> and carries on guide-pins C a plate B. The plate has horizontal bars D, the ends of which constitute the bolts which are adapted to engage the cam faces H<1> of clips H on the door frame. The plate also has a vertical bar E for the bottom clip and a top bar F, to which it is connected by links F<1>, F<3> for the top clip, the pivot F<2> of the links being carried by the door. For retaining the plate B and the locking members in the upper unlocked position, a latch K, L is provided. When the latch is disengaged, the weight of the apparatus brings it into the locking position, the action being assisted by a lever N pivoted to the door and having a stud which projects into a horizontal slot in the plate B. Instead of the lever gear for the upper bolt, it may be attached direct to the plate and move down from above on to the upper clip. In a modification, the clip may be adjustable, being formed of a pivoted member the bottom part of which is adjusted by a nut and stud for regulating the amount of opening of the upper part relatively to the frame.