baber/WOPTO huggingface dataset:
Patent GB-235873-A (GB)
Title: Improvements in constructional elements or blocks for building purposes
IPC: E04B2/42
Filed: 1925-06-12
Abstract: 235,873. Albert, F. L. J., and Duprat, A. E. C. J. June 19, 1924, [Convention date]. Building-blocks, special shapes of.-Relates to an interlocking building-block of the type having projections and recesses on its four edges and a central vertical hole to put the recesses in its top and bottom edges in communication. According to the invention, four projections are provided on each horizontal edge which are situated symmetrically with respect to a median vertical longitudinal plane and are extended over the vertical sides but which have between them on the horizontal edges a free space at least twice as long as the horizontal length of the projections. When the blocks are laid in courses staggered through half the length of the blocks, the projections enter the free spaces in adjacent blocks. Central holes are provided which come into alignment with the depressions between the vertical portions of the projections.
Patent GB-550823-A (GB)
Title: Improvements in self-locking nuts
IPC: F16B39/286
Filed: 1941-11-28
Abstract: 550,823. Locking nuts. DENNISON, E. A., and KENNEDY, D. S. Nov. 28, 1941, Nos. 15316/41 and 148/42. [Class 89 (i)] [Also in Group XXII] Self-locking nuts in one piece are provided with a slot or saw-cut c of triangular shape, the base at the top of the nut being equal to the thickness of the metal of the nut and the apex being at the root of the thread at the bottom of the nut. The slot is partially closed by lateral compression. Instead of extending towards a corner as in Fig. 1, the slot may extend towards the centre of a side, the top of the slot in this case extending to the faces of the nut. The slot may be radial or in the case of large nuts, oblique or spiral. The width of the slot is such that, after compression of the nut completely to close the nut at its wide end, it springs open again to about half its orginal width as shown in dotted lines in Fig. 7. The pressing is preferably effected asymmetrically by dies g, the nut being supported by an abutment i engaging two adjacent corners j. This causes one edge of the slot to project inwards and gives a ratchet action, further to resist unscrewing.
Patent GB-168674-A (GB)
Title: Improvements in cigarette cases and the like
IPC: A24F15/14
Filed: 1920-06-07
Abstract: 168,674. Sparks, E. June 7, 1920. No Patent granted (Sealing fee not paid). Contents, delivering.-In a case or the like having means for ejecting cigarettes singly, the pile of cigarettes is pressed forward by a plate I acted upon by a heart-shaped spring K arranged below a slotted partition G. The cigarettes are ejected singly by a spring-controlled lever D, which may work in conjunction with a shutter B adapted to block the exit. The partition is shorter than the inside of the case, thus providing a channel into which one cigarette is .always pressed ready to be ejected by the lever D.
Patent GB-568901-A (GB)
Title: Improvements in or relating to materials of high specific ohmic resistance
IPC: C22C11/00
Filed: 1943-09-20
Abstract: 568,901. Alloys. SHERIDAN, V. A. Sept. 20, 1943, No. 15384. [Class 82 (i)] Alloys of high specific ohmic resistance consist of tellurium and lead in the proportions of 10 parts by weight of tellurium to from 0.5 to 10 parts by weight of lead. Two examples are specified.
Patent GB-708215-A (GB)
Title: Improvements in or relating to a cushioning pad for a shock cushioning mechanism anda draft rigging comprising the same
IPC: F16F1/40
Filed: 1952-06-19
Abstract: 708,215. Rubber springs. NATIONAL MALLEABLE & STEEL CASTINGS CO. June 19, 1952 [June 23, 1951], No. 15446/52. Class 108(3) . A cushioning pad for a rubber spring unit comprises a plate 10 having a rubber cushion 12 of ring-like shape secured to at least one of its sides, portions 22 of the cushion being of less width than that of adjacent portions 20, the sides of the cushion sloping gradually upwardly from the surface of the plate, the thickness at the crest of the portions 22 being less than the thickness at the crest of the portions 20. The angle of slope of the portions 22 is about 32 degrees, and of the portions 20, is about 23 degrees. As applied to a coupling spring for a mine wagon. Fig. 5, six plates 10 are mounted under a precompression of 5000 lbs. between followers 36 on the shank 16 of a coupling member 44. The followers 36 abut stops 40, 42 rigid with the wagon frame. Each rubber cushion is designed to provide a compression of 45 per cent. Characteristic curves are given of the cushioning pad and the complete spring unit. Specification 686,211 is referred to.
Patent GB-1357682-A (GB)
Title: Apparatus for forming a tube from strip material
IPC: B21C37/08
Filed: 1972-04-04
Abstract: 1357682 Skelping tubes; welding by pressure OLIN CORP 4 April 1972 [24 May 1971] 15454/72 Headings B3E B3A and B3R Apparatus for forming a tube from a strip comprises a plurality of forming stands for forming the strip into an open tube having a longitudinally extending gap defined by the opposed edges of the open tube, a guide 50, Fig. 7 or 8, intermediate each stand for contacting a surface of the open tube over a substantial portion of the distance between each stand, and means, e.g. a welder, for joining the opposed edges. Each guide 50 is fixed to a plate 61, Fig. 5, which is pivotable about a spindle 62 by adjusting screws 63 in opposite directions. The pivoting assemblies P are mounted on plates 65 which are movable towards or away from the tube by cranks 66. Also the guides 50 are vertically movable or tiltable with respect to the longitudinal axis of the tube by means of bolts slidable in elongate slots in the plates 61. The guides 50 may be made of metal, plastics or ceramics. The opposed edges of the tube are welded together by passing the open tube through a high frequency induction coil 18, Fig. 3, and between a pair of rolls 14. To aid the welding operation a guide 24 and impeder 19 are used. Known contacts may replace the coil 18. (For Figures see next page.)
Patent GB-113926-A (GB)
Title: Improved Construction of Bolt and Means for Securing same in Position.
Inventor: LAMBERT CHARLES PERCY
IPC: F16B5/02
Filed: 1917-10-24
Abstract: 113,926. Lambert, C. P. Oct. 24, 1917. Bolts.-A headless bolt for use in ships &c. has a curved slot 3 in one side forming a shoulder 6 to bear against the face of a plate 5. The bolt is passed through the plate from the side on which the nut 7 bears, and is held in position by a curved wedge 9 driven into the bolt-hole to force the bolt sideways.
Patent GB-593403-A (GB)
Title: Power plant for the propulsion of aircraft
IPC: F02K3/12
Filed: 1941-12-01
Abstract: 593,403. Jet - propulsion plant. WHITTLE, F. Dec. 1, 1941, No. 15477. [Class 110 (iii)] In a jet-propulsion plant for aircraft, a number of similar gas turbine units, each comprising a double-entried centrifugal compressor 1, a ring of combustion chambers 4 and a turbine wheel 5 driving the air-compressor only, are arranged about a central shaft 9 which is driven by a turbine wheel 7 receiving the exhausts of all the units, the wheel 7 driving a pre-compressor 10 which delivers air into the chamber 11. In one modification, the precompressor is driven through gearing between the shaft 9 and all the units and the turbine wheel 7 may be omitted. In another, an additional pre-compressor driven at a lower speed is located in front and part of the air delivered by this pre-compressor passes, through an annular passage surrounding the gas turbine units, direct to the propulsion jet. Specifications 471,368 and 577,971 are referred to.
Patent GB-694573-A (GB)
Title: Improvements in or relating to sliver roll-forming machines
Inventor: FRASER HUGH
IPC: D01G15/62
Filed: 1950-06-21
Abstract: 694,573. Sliver-balling apparatus. FRASER & SONS, Ltd., D. May 28, 1951 [June 21, 1950], No. 15477/50. Class 120(i) [Also in Group XXXII] In a sliver rollforming machine of the type in which at least one arbor is movable relatively to one or more frictional driving surfaces. the rate e of movement being controlled by a dashpot. containing substantially incompressible liquid, the dashpot cylinder presents at one end at least a space containing a quantity of compressible fluid trapped by the operating liquid. As shown, during build-up of the sliver roll a piston 11 descends in a cylinder 1, displacing liquid from the closed lower end of the cylinder to the upper end through a bypass pipe 4 past a spring- loaded relief valve (not shown) and a needle valve 5. A recess 3 in the cylinder cover 3A accommodates compressible fluid which allows the liquid level to rise as the piston rod 12 enters the cylinder. A spring- loaded non-return valve 6 controls the rate of return of liquid to the bottom of cylinder 1 as the piston rises again; to reduce resistance to the rising of the piston, valve 6 may be opened manually by depressing a tappet 8. The lower side of the piston may be formed with a cavity constituting an auxiliary receptacle for compressible fluid. The operating liquid may be water or oil and the compressible fluid may be air or carbon dioxide; the liquid and the compressible fluid may be separated by a displaceable barrier such as a floating piston, a flexible diaphragm or bellows, or a bladder.
Patent GB-239634-A (GB)
Title: Improvements in or relating to the production of shades on vegetable fibres
IPC: D06P1/12
Filed: 1924-06-27
Abstract: Aromatic amine-aldehyde condensation products are produced by condensing aldehydes, particularly formaldehyde, with unsulphonated aromatic amines in presence of mineral acids. Especially suitable are amines having a free p-position and those containing more than one nucleus in which the nuclei are linked in the p-position such as benzidine, diamidodiphenylmethane and prosaniline.  The product from o-anisidine is described.  They may be isolated by precipitation with caustic soda and have affinity for vegetable fibres.ALSO:Fast shades are produced upon vegetable fibres such as cotton, flax, and artificial silk, by fixing on them diazo compounds of the bodies made by condensing unsulphonated aromatic amines with aldehydes in presence of mineral acid, and developing by means of phenols or amines.  The condensation products derived from amines having a free p-position, or those containing more than one nucleus in which the nuclei are joined in the p-positions such as benzidine, diamidodiphenylmethane, and p-rosaniline, are especially suitable. The condensation products may be fixed on the fibre and then diazotized, or the fibre may be treated with a solution of the diazo compound.  According to examples:-(1) cotton is impregnated with the condensation product from o-anisidine, formaldehyde, and hydrochloric acid, diazotized, and a bluish-red shade developed with b -naphthol; (2) cotton is treated with a solution of diamidodiphenylmethane in hydrochloric acid, then with formaldehyde, and finally diazotized and developed with b -naphthol to an orange shade.
Patent GB-1254928-A (GB)
Title: beta-ALKOXYACRYLIC ACID AMIDES
Inventor: MAYER DIETMAR
IPC: A01N37/36
Filed: 1969-03-25
Abstract: 1,254,928. #-Alkoxyacrylamides. FARBENFABRIKEN BAYER A.G. 25 March, 1969 [25 March, 1968], No. 15550/69. Heading C2C. The invention comprises #-alkoxyacrylic acid amides of the formula wherein R 1  is alkyl with more than 2 C atoms or cycloalkyl which may be substituted by (C 1 - C 4 ) alkyl, R 2  is alkyl, alkenyl, cycloalkyl which may be substituted by (C 1 -C 4 ) alkyl; or aralkyl which may be substituted by halogen; and R 3  is H, alkyl, alkenyl, cycloalkyl or aralkyl. They may be obtained by reacting a #-alkoxyacrylic acid chloride of formula  with an amine of the formula  in the presence of an acid-binding agent. Examples are given for the production of the compounds. They are useful as insecticides and acaricides. Compounds of the formula are obtained by reacting the appropriate alkylvinyl ether with COCl 2  at a temperature from 0 to 10 C. in the presence of tertiary amines. Examples are given for the production of #-(noctyloxy)-acrylic acid chloride and #-(3-methylcyclohexoxy)-acrylic acid chloride.
Patent GB-195892-A (GB)
Title: Improvements in or relating to installations for utilising waste heat in connection with cellulose digesters
IPC: D21C11/06
Filed: 1922-06-02
Abstract: 195,892. Akt.-Ges. der Maschinenfabriken Escher, Wyss, et Cie. April 29, 1922, [Convention date]. Pulp, preparation of.-In utilizing the waste heat of cellulose digesters, the waste liquor from the boilers is run through a tank 4 and along a counter-current apparatus, passing down the inner pipe 5 while fresh water flows up through the outer pipe 6 to the tank 10, from which the water for the fresh lye is taken. The vapour and steam from the boiler are first discharged to the tank 10. The tank 4 may be provided with sieves or other means for separating solids from the liquids. Also the tank may be closed and the waste liquor from the boilers discharged thereinto by pressure, the vapour and steam being subsequently discharged therefrom into the hot water tank.
Patent GB-636314-A (GB)
Title: Improvements in or relating to honing devices
IPC: B24B33/08
Filed: 1945-06-20
Abstract: 636,314. Honing tools. STEVENS, A. H. (Micromatic Hone Corporation). June 20, 1945, No. 15691. [Class 60] A driving and adjusting head, for a honing tool having stones moved radially by a longitudinally movable element having a pair of cones sloping in the same direction, comprises a tool receiving sleeve, a hollow driving member and a hollow universal joint joining said sleeve and member, and is characterized by the provision of an adjusting element movable both in rotation and longitudinally and having a direct longitudinal movement entirely independent of rota. tional movement. A stem 14 of a honing tool 15 is locked by a bayonet-type joint into the lower end of a sleeve 12 which has at its upper end a hollow uni. versal connection 57, 58, 59 with a hollow driving sleeve 51 which thus serves through the sleeve 12 and stem 14, to rotate the too] 15. Tool abrasive stones 72 are adjusted radially by longitudinal movement of a cam element 71 connected to a rod 64 secured to a rod 45, both longitudinally movable in the stem 14 ; the upper end of the rod 45 has secured round it an element 42 having longitudinal gear-teeth 41, the top of which element 42 is engaged by a push-rod 47 extending through the hollow driving sleeve 51 and the hollow universal connection. The longitudinal movement of the cam element 71 may be given in two ways either by the direct longitudinal movement by the rod 47 of the sleeve 42, rod 45, rod 64 and thus the cam element, or by giving a rotational movement, relative to the sleeve 12, to the sleeve 42 which turns the rod 45, which at its lower end is threaded into the non-rotatable rod 64, thus giving the rod 64 a small longitudinal movement. The gear-teeth 41 on the element 42 are engaged by pinion gears 37 journalled in the body of the sleeve 12 and engaged by an internal gear 36 carried by a sleeve 28. The sleeve 28 is keyed to a brakesleeve 33 and a collar 27, a lug 26 on which engages a stop 25 on a sleeve 21 locked to the rotating sleeve 12, so that the whole head rotates as one and there is no relative rotation of the element 42 and sleeve 12. To give the element 42 its required rotation relative to the sleeve 12 the sleeve 33 is gripped and braked and the collar 27 lifted to disengage the lug 26 ; this slows the rotation of the sleeve 28 relative to the sleeve 12 and thus rotates the pinions 37 which in consequence rotate the sleeve 42.
Patent GB-557955-A (GB)
Title: Electrical circuits using indirectly heated thermally sensitive resistance elements
IPC: H04B3/12
Filed: 1942-11-06
Abstract: 557,955. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. Nov. 6, 1942, No. 15699. Convention date, Dec. 6, 1941. [Class 40 (v)] In an electrical circuit in which an indirectly heated thermistor is used, such as a multiplex carrier current repeater as described in Specification 515,126 in which the feedback is controlled by a pilot wire regulator, means are provided to reduce the steady potential difference between the heating coil and the resistance element of the thermistor by the provision of a leak resistance to ensure that the potential difference across the thermistor is insufficient to cause damage. The Figure shows a thermistor T in the feedback path of an amplifier 1 ... 3 controlled over a pilot channel 22 shunted by a resistance 25 to ensure that the leakage through the transformer 23 does not cause the high tension battery 17 to set up an excessive voltage between the heater 20 and element 14 of the thermistor. The thermistor may be of the kind described in Specification 541,922, [Group XI].
Patent GB-272557-A (GB)
Title: Improvements in carrying out the catalytic oxidation of organic compounds in the gaseous or vapour state
IPC: C07B35/04
Filed: 1927-06-13
Abstract: 272,557. I. G. Farbenindustrie Akt.- Ges. June 14, 1926, [Convention date]. Phthalic anhydride; naphthoquinone ; benzoquinone; maleic anhydride; benzaldehyde; benzoic acid.-In effecting the catalytic oxidation of organic compounds in the gas or vapour state with the use of non-volatile catalysts, the reaction products are brought into contact with solid adsorbent substances prior to the separation of the desired products, whereby products of greater purity are obtained. Such solid adsorbent substances are employed as do not alter in shape, by melting or volatilization, at the temperature of use, do not react with the desired reaction products, and are not decomposed by the hot gases or vapours with the formation of products capable of reacting with or contaminating the desired products; suitable substances are pumice, silica gel, and active carbon. The adsorbent substances may be impregnated, prior to use, with solutions of salts or bases, or they may be coated with salts or metal oxides. The temperature at which the adsorbent substances are allowed to act is maintained sufficiently high to avoid deposition of the desired products. Preferably, the reaction products are brought into contact first with partly spent substances and then with fresh substances: this treatment may be effected in counterflow. In an example, the products from the catalytic oxidation of naphthalene are passed at about 260‹ C. over granulated pumice, whereafter they are cooled to separate phthalic anhydride. The Specification as open to inspection under Sect. 91 (3) (a) states that solid substances of smooth surface, such as calamine and iron turnings, may be used. The example refers to the use of bauxite and mentions a temperature of 200‹ C., and it is stated that if the separated product contains also naphthoquinone. this is recovered by extracting the phthalic anhydride with weak alkalies. Reference is made also to the production of maleic anhydride and benzoquinone from benzene and of benzaldehvde and benzoic acid from toluene. This subject-matter does not appear in the Specification as accepted.
Patent GB-277747-A (GB)
Title: Improvements in and relating to heat and like insulation
IPC: E04F13/14
Filed: 1926-06-22
Abstract: 277,747. Anderson, R. W. June 22, 1926. Compound slabs.-Heat-insulating slabs for walls, ceilings, ships' bulkheads, &c. each comprise a body a of compressed cork and facings b, d of asbestos cement at least one of the facings being displaced relative to the body so as to break joint when the slabs are assembled. The facings may be applied to both sides of the cork block. In a modification, the facings are symmetrically disposed relatively to the block and successively smaller. In this case, the joints of the assembled slabs are covered with strips of asbestos cement. Specifications 15975/13, and 277,748, [Class 64 (ii), Heating systems &c.], are referred to.
Patent GB-663486-A (GB)
Title: Improved hand truck
IPC: B62B3/04
Filed: 1949-06-14
Abstract: 663,486. Hand trucks. EGGENSCHWILER. H. June 14, 1949 [June 25, 1948], No. 15735/49. Class 108(i) A two-wheel hand truck comprises a transverse tubular member 1 and two longitudinal members 2, 3, all the members being rectangular in cross-section. Two bent tubular shoe members 4 welded to the member 1 are provided with collars 5 for gripping the load, and tubular supporting members 6, 7, mounted telescopically in the members 2, 3, are provided with wheels or castors 8, 9, and with apertures 10 on their inner facing sides. Bell crank levers 11 are pivoted in pairs connected by studs 14, on pins 12, and have catches 13 adapted to engage in the holes 10. An eyebar 15 is secured at its foot end to each stud 14, whilst the other end of the bar is rotatably secured to one of two thumboperated bell crank levers 16, each of which levers is pivoted at 17 to the upper ends of the cradle members 2, 3. Handles 19 are welded to the members 2, 3, and a cross-member 20 is provided with a cushioning felt strip 21. In use, the truck is wheeled to the load, and the cradle parts 1-5 lowered to the ground by operating levers 16 and bars 15 to release the catches 13. The load, e.g. a piece of furniture, is then moved on to the shoe members 4 until it abuts the cross-member 20. The cradle 1-5 is then raised by means of the handle and the catches engaged in apertures 10 situated at the desired height. The line of reaction on the catches 13 ensures their positive engagement with the top edges of the holes 10. As a rule a second hand truck is used on the opposite side of the load.
Patent GB-215994-A (GB)
Title: Improvements in and connected with furnaces heated by gas
IPC: F23D99/00
Filed: 1923-06-18
Abstract: 215,994. Schreiber, E. June 18, 1923. Gaseous-fuel furnaces. - In a regenerative open-hearth furnace, means are provided for heating by generator gas passing through a regenerator or by gas of a high calorific value, in the latter case the gas regenerator being used for heating air supplied to mix with the gas. As shown in Figs. 1 and 2, the furnace is provided with an air regenerator chamber f supplying air through passages g to the air port h and by way of damper-controlled openings k to the, gas port c supplied with generator gas from the gas regenerator chamber a and passage b. A swivelling nozzle e is employed for supplying gas of high calorific value to the port c, in which case air is supplied to port from the regenerator chamber a. The nozzle e may be used for supplying air to the port c when generator gas is used.
Patent GB-967349-A (GB)
Title: Improvements in or relating to blast cleaning and like operations
IPC: C21D7/06
Filed: 1962-04-25
Abstract: 967,349. Making comminuted metal; blasting. D. J. HUTSON. April 25, 1962 [June 28, 1961], No. 15851/62. Headings B3A and B3D. [Also in Division E1] A method of making a blast cleaning medium comprises cutting up sheet or plate material into geometrical shapes. Sheet material, preferably scrap off-cuts of steel, or non-ferrous metal is fed through a machine comprising a sawtooth edged reciprocating cutter blade or a rotating cylindrical cutter having blades with similarly shaped teeth either of these blades cooperating with a fixed blade having matching serrations to produce pellets of various shapes. Pellets used in the soft state for peening are preferably of a cube shape whilst those having a diamond or triangular profile are preferably made from carbon or alloy steel and subsequently heat treated. To produce cube or diamond shapes the sheet may be fed in a direction parallel to the cutter blade teeth and obliquely to the fixed blade.