baber/WOPTO huggingface dataset:
Patent GB-527529-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: F04B1/16
Filed: 1939-04-14
Abstract: 527,529. Valve-less reciprocating pumps : connecting rods. LANGLEY, T. W., and TECALEMIT, Ltd. April 14, 1939. No. 11308. [Class 102 (i)] [Also in Group XXVI] A valve-less reciprocating pump comprises one or more pairs of opposed pistons, each pair reciprocating in a common cylinder with substantially simple harmonic motion, one piston following the movements of the other piston with a phase angle difference of less than 45 degrees, so that the two pistons recede from, and approach, each other as the space between them communicates, respectively, with an inlet and an outlet port. In the form shown, ten pairs of opposed pistons 5a, 5b are reciprocated in cylinders 4 by a pair of swash-plates 31, 38, the cylinders having inlet and outlet ports 64, 65 respectively. Relative axial movement of the parts is prevented by means of three pairs of plungers 42 controlled by springs 43 separated by distance pieces 44, the outer ends of these plungers being conical to engage similarly shaped recesses in the swash plates. The latter also carry hardened rollers 37a, 37b which engage co-planar hardened flat plates 40a, 40b on one or both sides of recesses 39a, 39b. The swash plates are driven by a common shaft 16 provided with conical roller bearings 18, 31, and their phase angle is controlled by the relative positions of V-shaped cams 23 on a delivery control sleeve 19 rotatably mounted on the shaft 16, and corresponding V-shaped cams 26 on a collar 24 splined on the shaft. These cams are urged together by means of a spring 27. and means may be provided for adjusting the phase angle either manually or automatically. The piston rods 6a, 6b have spherical outer ends, and they are passed through radial slots 34 to engage part spherical recesses in the swash plates. They also have spherical inner ends 54, Fig. 4. to engage hemispherical recesses 55 in the pistons, being held therein by tubular struts 58 which are split at both ends as at 62, 63, Fig. 5, and flanged as at 60, 61 to engage annular recesses 57 at the outer ends of frusto-conical bores 56 in the pistons. Alternatively, the pistons may be driven by cams or crank-shafts.
Patent GB-964742-A (GB)
Title: Improvements in or relating to pressure point pads
Inventor: TALLEY HENRY ALFRED ERNEST
IPC: A61G7/057
Filed: 1962-03-26
Abstract: 964,742. Inflatable mattresses &c. TALLEY SURGICAL INSTRUMENTS Ltd. March 11, 1963 [March 26, 1962], No. 11418/62. Heading A4M. An inflatable pad or cushion having chambers alternately inflatable and deflatable and constructed by heat-sealing two layers 10, 11 of polyvinylchloride sheeting has a first header tube 1 in communication with one end of a series of transverse chambers 2 and a second header tube 3 in communication with one end of a second series of chambers 4, there being a gap 5 between neighbouring tubes so that the tubes are secured to the cushion assembly only at their ends.
Patent GB-276955-A (GB)
Title: Improvements in apparatus for blowing molten substances in the form of spray
IPC: B05B7/20
Filed: 1927-04-29
Abstract: 276,955. Jung, C. J. Sept. 3, 1926, [Convention date]. Drawings to Specification. Air and gas pressure aparatus, non-automatic. -Apparatus for atomizing molten substances is provided with a container having a lid and air supply as claimed in Specification 276,956.
Patent GB-1223611-A (GB)
Title: Improved grass cutter
Inventor: ROBERTS JOHN WILSON
IPC: A01D34/42
Filed: 1968-03-08
Abstract: 1,223,611. Lawnmowers. HAYTERS Ltd. 4 March, 1969 [8 March, 1968], No. 11564/68. Heading A1F. A lawn-mower comprising a motor subframe 10, a wheeled or rollered cutter sub-frame 15, a cylinder cutter 14 mounted on the cutter sub-frame, a motor 12 mounted on the motor sub-frame and a flexible drive 23 from the motor to the cutter, is characterized in that the cutter sub-frame is mounted on the motor subframe for rotation about a longitudinal axis about the pivot 20. A spring 27 is located to one side of the pivot 20 sewing to counter balance the cutter sub-frame when the machine is lifted.
Patent GB-296533-A (GB)
Title: An improved emergency brake device for vehicles
IPC: B60T1/14
Filed: 1927-11-09
Abstract: 296,533. Allison, A., and Ginn, C. R. Nov. 9, 1927. Skid.-Brake mechanism for preventing the running back of vehicles of the kind wherein wedge blocks are carried by pivoted arms for engagement between the wheel tyres and the road surface comprises blocks F, carried by arms G extending from a transverse rock shaft H mounted in bearings J clamped to the rear axle or to the springs, the rock shaft having secured thereto an arm L connected by an upwardly bent guided rod M to a hand lever A. The arms G may be bent as shown for accurately positioning the blocks in relation to the wheels and the road surface. A spring C holds the blocks in the normal raised position. Specifications 112,704, 206,993, 245,202, and 250,458 are referred to.
Patent GB-1355352-A (GB)
Title: Cationic monoazo dyestuffs
IPC: C09B44/02
Filed: 1971-04-28
Abstract: 1355352 Substituted sulphonamido benzenes P U KUHLMANN 28 April 1971 [28 April 1970] 11760/71 Heading C2C [Also in Division C4]  2 Nitro-4 chloro N(diethylaminoethyl and propyl) 1-sulphonamido benzene are prepared by reacting diethylaminoethylamine and diethylaminopropylamine respectively with 2 nitro-4 chloro-benzene-sulphochloride in chlorobenzene and DMF.
Patent GB-578304-A (GB)
Title: Improvements in or relating to the adhesive bonding of surfaces or adhesive compositions (or processes of preparing the same) suitable for use therein
IPC: C08L21/02
Filed: 1942-08-21
Abstract: Adhesive compositions for use on smooth surfaces and having good resistance to water and oil comprise (a) an aqueous dispersion of natural or synthetic rubber, e.g. neoprene, (b) a resinous material, e.g. wood rosin and (c) casein or like proteinous substances, substances (b) and (c) being in proportions as 1 to 3 is to 1, and (b) plus (c) exceeding the weight of the rubber, e.g. 2 or 3 times, the rubber being at least partially vulcanized or cured.  The dispersed casein particles are too small to be individually discernable microscopically.  An example specifies casein in water with ammonia and phenol, wood resin, and Neoprene with sodium lauryl sulphate as stabilizer, formaldehyde being also added.  The composition, which has no organic solvent, may be used without priming; the bond formed withstands flexing.
Patent GB-1163553-A (GB)
Title: Navigational situation display
IPC: G01C21/22
Filed: 1966-09-30
Abstract: 1,163,553. Maps. INTERNATIONAL STANDARD ELECTRIC CORP. 30 Sept., 1966 [4 Oct., 1965], No. 11782/69. Divided out of 1,163,552. Addition to 1,066,008. Heading G5G. [Also in Division G2] In an optical projection system for use in navigational situation display, images from an axially and rotatably movable cylindrical map transparency 1 are projected by lens 35 and prism 36 on to screen 25 in superposition with images projected from cathode-ray tube 26 by lens 28, prism 36 being located at the exit pupil of lens 35 and within the exit cone of light from lens 28. The map projection system is optically folded and is located within the transparency cylinder, a Dove prism in the system rotating the projected map image according to aircraft heading. Prism 36 is suspended by wires attached to ring 46 and may comprise two cemented prisms with a small reflecting spot on their hypotenuse interface.
Patent GB-664297-A (GB)
Title: Improvements in speed-reduction gear
IPC: F16H1/28
Filed: 1949-05-03
Abstract: 664,297. Toothed gearing. STOECKICHT, W. G. May 3, 1949 [Dec. 3, 1948], No. 11790/49. Class 80 (i). In an epicyclic reduction gear comprising a driving sun gear 1, a driven annulus 6, stepped planets 3, 4 and a fixed reaction annulus 5 of slightly different diameter from the driven annulus 6, the driven annulus'6 is unsupported by bearings and connected to the driven shaft 8 by means of a double toothed coupling 9, 10 so that the tooth pressures between the planets and the annulus 6 are equalised. The Specification as open to inspection under Sect. 91 comprises also an arrangement in which the annulus is rigid with the driven shaft and the planet carrier 13 is "floating." This subject-matter does not appear in the Specification as accepted.
Patent GB-703180-A (GB)
Title: Improvements in alkylene polyamino phosphonic acids and method of producing same
IPC: C07F9/38
Filed: 1951-05-21
Abstract: The invention comprises as new compounds those having the structure <FORM:0703180/IV(b)/1> wherein Alk represents an alkylene radical CnH2n containing two to six carbon atoms, and the alkali metal salts thereof.  The compounds are sequestering agents for metal ions in aqueous solutions being capable of chelating and complexing mono- and polyvalent metal ions to form non-ionic compounds.  The compounds may be prepared by reacting a chloromethyl phosphonic acid with an alkylene diamine diacetic acid in heated alkaline aqueous solution, preferably at a pH of 10 to 11.  In this process, the acetic acid groups of the amino acid may be immobilised by chelating the same with a divalent heavy metal such as copper which may be subsequently removed by precipitation with hydrogen sulphide, the substitution reaction with the chloromethyl phosphonic acid being thus facilitated.  In an example of this procedure one mol. of ethylene diamine diacetic acid and one mol. of freshly precipitated copper hydroxide are dissolved in water to give a 40 per cent. to 50 per cent. solution of the resulting copper complex of the amino acid and the solution heated to from 60 DEG  C. to the refluxing temperature and caustic soda is added to give a pH of 10-11.  Two mols. of chloromethyl phosphonic acid are then added and the heating continued to complete the substitution reaction, a strong base being also added so as to maintain alkaline conditions.  The reaction mixture is then diluted with water, cooled, neutralized with hydrochloric acid to a pH of 6.5 to 7 and hydrogen sulphide passed through to precipitate the copper ions as insoluble copper sulphide.  The methylene phosphonic acid may be recovered from the copper-free solution, after boiling to expel the hydrogen sulphide, by precipitation by the addition of hydrochloric acid to a pH of about 2, or by adding free caustic alkali to give a pH of 10-11 and then crystallizing the sodium salt from the solution.  Another method of forming the products is to treat ethylene diamine di-methylene phosphonic acid, which may be prepared in the manner described in Specification 703,181, with sodium cyanide and formaldehyde in alkaline solution of pH about 9, the product being obtained as the solid hexa sodium salt by addition of ethanol.  The calcium chelate of ethylene diamine di(methylene phosphonic) diacetic acid sodium salt is referred to and this chelate may be formed in aqueous solution from insoluble calcium compounds, e.g. the oxalate, carbonate, and phosphate.  The iron chelate of the same compound is also referred to and is formed by treating with ferric chloride and sodium hydroxide in solution.  When the ratio of metal ion to chelating agent is greater that 1:1 the metal may still be completely complexed, thus two mols. of the calcium chelate is found to chelate one mol. of Fe+++ ion.  The propylene diamine and trimethylene diamine derivatives are also referred to.
Patent GB-679943-A (GB)
Title: Appliance for reversing tubes of flexible material
Inventor: CUNNINGHAM WALTER CLIFFORD
IPC: D06G3/02
Filed: 1950-05-11
Abstract: 679,943. Turning inside out hollow articles. CHASE ELECTRIC CO., Ltd. May 8, 1951 [May 11, 1950], No. 11838/50. Class 112. [Also in Group XXXIV] A tube 1, over which a flexible hollow article such as a belt for clothing is placed to be turned inside out by forcing it through the tube by a push-rod 12, is provided with rotatable elements 9 in its rim at one end to facilitate passage of the article from the outside to the inside of the tube. In the form shown, a sleeve 2 fixed to the end of the tube has a castellated rim and each lug 6 is forked to receive a split ring 10 on which are threaded rollers 9 fitting in the recesses 5, the forks of the lugs being pinched together to retain the ring. Balls projecting from retaining cages may be used instead of the rollers. The tube may be clamped in a wall bracket or in a support secured to a table; several tubes of different diameters may be carried in the same support. The push rod has a handle at one end and a work-engaging boss, which may be a soft pad, at the other.
Patent GB-550440-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F13/00
Filed: 1941-09-17
Abstract: 550,440. Washing and drying machines. BRITISH THOMSON-HOUSTON CO. Ltd. Sept. 17, 1941, No. 11886. Convention date, Sept. 19, 1940. [Class 138 (ii)] A machine with a rotatable receptacle mounted on a vertical shaft for washing and centrifugally drying has the shaft supported for axial movement against spring resistance so that the drive only acts when the receptacle is filled to the proper level for washing. By suitable means, for example, that shown in Specification 472,149 the agitator is oscillated for washing, and the receptacle is rotated for centrifugal drying by a vertical shaft 6 connected by a universal joint of right angled arms 35, 36 and a thrust bearing ball 38, with a vertical shaft 17 journalled in a strut 21 and splined to a clutch member 23 supported on ball bearings on the strut and having seated in it a spring 25 on which rests a thrust washer 26 resting against a shoulder on the shaft 17. Loose on the shaft and resting on the thrust washer is a clutch member 28 integral with a pinion 29 on which is a ball thrust bearing 30 supporting a spiral gear 31 keyed to the shaft and engaging a spiral gear 61 loose on a driving shaft 44 which has fast on it a worm 45 engaging a worm wheel 46 in which is journalled the crank pin 47 of a bar 48 slidably mounted in a carrier 49 pivoted on the inner end of a plunger 50 the outer end of which slides against a spring 52 in a boss 51 on the casing having an adjusting threaded plug 53. The bar 48 has a rack which can thus be meshed with the pinion 29 to oscillate the clutch member 28. The driving shaft 44 is splined to drive a clutch member 58 which can engage the member on the loose spiral gear 61. Thus a control lever 62 can be set to put in the continuous drive for the shaft 17 by rocking the shaft 55 and arm 56 at the same time removing the rack of bar 48 from the pinion 29 and throwing out the oscillating drive by means of the arms 54. The latter is only effective to perform washing when the receptacle charged with clothes and water to the proper level lowers the shaft 17 against the action of spring 25 and takes the drive from the rocking pinion 29. A reverse movement of the lever 62 throws out the continuous drive and puts in the rocking drive. A pump 67 is driven by belt from the shaft 44 to draw liquid from the outer casing and discharge it on to the filter on top of the receptacle.
Patent GB-149434-A (GB)
Title: Improved apparatus for wireless telegraphy and telephony
IPC: H01F27/36
Filed: 1919-05-13
Abstract: 149,434. Round, H. J. May 13, 1919. Wireless telegraphy and telephony.-In a wireless receiver of the kind in which the grid circuit of a thermionic valve is coupled to the aerial, the secondary coil of the coupling transformer is surrounded by a metal sheath which is connected to the filament battery. In the example shown, the loop aerial A is coupled through the transformer B, C to the grid-filament circuit of the valve. A metal sheath E having a longitudinal gap, or a mass of fine wire not forming a complete circuit, surrounds the secondary coil C and is connected by a wire to the filament battery F. The leading wires and the valve or valves may be shielded in like manner, or the valves may be enclosed in a metal box to which the filaments and the lower ends of the sheath and secondary coil are connected. The winding, sheath, and batteries may be enclosed in the same box, or in a separate box connected thereto. The sheath prevents a charge on the aerial from acting electrostatically on the secondary coil and causing a variation in grid potential, such action being possible if the aerial is allowed to oscillate as a plain vertical aerial earthed through the capacity of coils B, C and through the capacity to earth of the filament battery. When using a vertical receiving aerial, the screen is placed between the windings of the transformer constituted by the aerial inductance and the secondary coil connected to the valve grid. The sheathing serves to prevent magneto induction in aeroplane installations.
Patent GB-1500075-A (GB)
Title: Helical antenna with temperature characteristics
IPC: H01Q1/02
Filed: 1975-03-21
Abstract: 1500075 Cooled antenna INTERNATIONAL STANDARD ELECTRIC CORP 21 March 1975 [22 March 1974] 12011/75 Heading H4A A helical antenna, Fig. 1, comprises a helix element 2 which is formed by winding tubing, Fig. 4, into a helical shape, the tubing containing means for distributing heat along the length of the helix. The tubing, sealed at both ends, contains liquid (e.g. water, a ketone, an alcohol or a fluorocarbon) in equilibrium with its vapour, which liquid vapourizes at hot spots 47 (caused by high current flow) and condenses at cool regions, so distributing the heat generated by the current in the helix. The liquid returns to the hot spots either under gravity or by capillary action in a porous layer 44 on the inner surface of the tubing (e.g. a braided layer of cotton, wool, felt or fibreglass). A braided copper mesh tube may be inserted in the tubing to prevent the porous material filling the central passage (Fig. 4c, not shown). The tubing is generally aluminium or copper 42, coated on the outer surface with silver 43. The inner surface may be treated to make it porous as an alternative to introducing braids (Fig. 4d, not shown). The construction of the antenna itself is known, comprising an earthed helix 2 whose length is effectively altered by tuning element 1 making contact between the helix 2 and cylinder 4 through brushes 3 said element being driven by a motor 5. The range of frequencies of signals to be radiated is from 2-12 MHz in the  wave mode and 10-30 MHz in the ¥ wave mode. The helix is embedded in an insulating coilform of epoxy-bonded or silicone-bonded fibreglass. A coilform in the present invention may support higher power radiation than the same coilform in a known antenna due to the internal dissipation of heat in the helix.
Patent GB-599853-A (GB)
Title: Device for the protection of electric batteries against excessive discharge
IPC: H02H7/18
Filed: 1945-05-14
Abstract: 599,853. Protective cut - out systems, DUCRUET, A. J. May 14, 1945, No. 12037. Convention date, Feb. 12, 1944. [Class 38(v)] Batteries are protected against over discharge with consequent polarisation, by using the resulting voltage-drop to operate a device that disconnects the battery. A series relay 1, when the current approaches normal full-load value, closes. contacts k1, thereby energising a detector 2, such as a contact voltmeter, a voltmetric relay, a tube detector or an electromagnetic relay, having a contact A flexibly connected through c1 to a relay 3. Should the voltage now drop below a predetermined value, the contact A engages the contact d and relay 3 is energised over contact k2 to open a contact m thereby disconnecting the load circuit a, b and allowing the battery to recover. Relay 1 is consequently de-energised and device 2 thereby de-energises relay 3 to reclose the load circuit. At the same time as contact m opens, a contact s closes to operate a counting device 9. In Fig. 2, a shunt relay 4 is in series with two resistances 7, 8, which can be shunted by a contact p which closes when the voltage drops. Simultaneously, a contact n closes, whereby a condenser 6 is partially charged. Due to the short-circuiting of the resistances, relay 4 is re-energised to open contacts n, p. This process is repeated until the condenser 6 is sufficiently charged to energise relay 5 to open the contact m.
Patent GB-633953-A (GB)
Title: Improvements in or relating to the production of oil from oil-bearing protein material of animal origin
IPC: C11B1/10
Filed: 1947-05-05
Abstract: Oil from animal materials, particularly fish meat and livers, is preserved during storage of the raw materials prior to its extraction therefrom, by forming an aqueous mixture of the fresh raw material together with an alcohol, the concentration of the alcohol being not more than 12 per cent nor less than 3 per cent by weight of the mixture, storing the mixture until substantial digestion of the material has taken place, and finally recovering the oil from the mixture.  The alcohol of the specified concentration permits the protein splitting and the accompanying proteolytic digestion of the tissues by the proteases to proceed unhindered thereby releasing the oil therefrom, but inhibits the fat-splitting action of the lipases which normally hydrolyse the oil to form free fatty acids with resulting dark colour &c. of the products.  Any usual alcohol, including butyl and amyl alcohols, may be used, but ethyl and isopropyl alcohols are preferred. Alcohols of 6 to 12 per cent concentration on the above basis also inhibit bacterial decomposition; this is much less with alcohols of 3 to 6 per cent concentration which should therefore preferably include a small proportion of a suitable water-soluble germicide. The germicides specified comprise any free fatty acid up to capric acid, particularly acetic and propionic acids, borax, sodium benzoate, sodium salicylate, bromphenolic acid, chlor-acetic acid and sodium arsenate.  The aqueous alcohol-raw material mixtures preferably contain an acid reacting material, which may be the germicide, to shift the pH of the solutions toward the acid side so as to promote the tissue digestion.  After digestion is complete, such as by storage on board ship until the oil recovery is conveniently made, the upper oil phase is separated from the lower aqueous phase by decantation, siphoning, centrifuging, &c. The usual refining of the oil with sodium hydroxide, water washing, &c. may follow.
Patent GB-233147-A (GB)
Title: An improved illuminated sign
IPC: G09F13/04
Filed: 1924-05-16
Abstract: 233,147. Johnson, A. May 16, 1924. Shop fronts.-A shop front 2 is provided with an illuminated sign 4 in the form of a box situated in an aperture in the brickwork flush with the outerface of the shop front. The sign is on glass or cut out of wood, metal &c. and illuminated by one or more electric lights 8 depending from the top of the box. The back of the box is an inclined hinged cover and is provided with a mirror 13. Holes 14 are provided in the top and bottom of the box for inspection and ventilation.
Patent GB-1088567-A (GB)
Title: Wrap around can carrier carton with central retaining member
Inventor: MAHON JOHN VINCENT
IPC: B65D71/00
Filed: 1965-03-22
Abstract: 1,088,567. Packages. CONTAINER CORPORATION OF AMERICA. March 22, 1965, No. 12102/65. Heading B8C. A wrap around carton for chimed cans is characterized by a retaining member extending into the carton between adjacent cans, the member having a neck portion extending between the chimes joined to a head having outwardly facing abutments which engage the chimes adjacent the can sides. The abutments are formed by folding extensions of one or both flaps 18, the number of folds being doubled when only one flap is used so that the head extends substantially the whole of the distance between the bodies of the cans immediately inward of the chimes. The head portion may extend the whole length of the wrapper or may be in portions between each pair of cans. A tab 28 is glued to one flap 18 to secure the wrap. Push out portions 32, 34 facilitate handling and infolded sectors at 42, 44 engage the chimes at the can ends to prevent them from falling out of the wrapper.