baber/WOPTO huggingface dataset:
Patent GB-1505843-A (GB)
Title: Activated carbon filter
IPC: B01D53/04
Filed: 1976-02-02
Abstract: 1505843 Activated carbon filter D A G MARSHALL 2 Feb 1976 [31 Jan 1975] 4272/75 Headings B1L and BIT A filter for removing e.g. ozone from air, comprises two (or more) superposed circular layers 10 and 12 of cellular material containing activated carbon particles 14 in open-ended cells which are out of alignment in the two layers, the outer faces being covered by circular sheets 18 and 20 of air-permeable material preventing escape of the particles, the sheets being held in place by circular metal screens 22 and 24, all being embedded in a surrounding circular frame 26 of synthetic plastics. A circular metal screen 16 and/or a sheet of air-permeable material may be sandwiched between layers 10 and 12.
Patent GB-295555-A (GB)
Title: Improvements in or relating to tapping or like machines
IPC: B23G1/20
Filed: 1928-02-11
Abstract: 295,555. Thiel, H. Feb. 11, 1928. Drilling-machines. - A single spindle machine is converted into a two spindle machine to permit taper and finish tapping without change of tool. As shown applied to a pillar type of machine an arm 2 clamped to the pillar 1 carries an additional spindle head B. Adjustment may be provided by swinging the arm 2 on the pillar, the drill head B being then angularly adjustable on the arm. The belt pulley 7 is laterally movable and the idlers 8 are adjustable.
Patent GB-270214-A (GB)
Title: Improvements in valve mechanism for air or gas, pumps or compressors
IPC: F04B27/00
Filed: 1926-01-23
Abstract: 270,214. Enock, A. G. Jan, 23, 1926. Valves, arrangement of.-The cylinder end of a compressor is surrounded by an annular induction chamber B, and the cylinder is provided with a portless sleeve suction valve D in which the piston slides and which closes upon an annular seating on the cylinder end or cylinder cover. The overall diameter of the induction chamber is greater than that of the seat of the valve. The valve D. Fig. 1, has a flangle d engaging a seat b around the end of the cylinder. The discharge is controlled by balls E set in a cage. When the valve is raised the fluid passes from chamber B through passages between webs and over the top of the valve into the cylinder A. In a modification, the valve D is formed with a bevelled rim which engages a seating on the cover F. In a second modification, a valve seating provided with packing is arranged in a groove in the cylinder cover. In a further modification applied to a single-acting compressor, the suction chamber extends also around the body of the cylinder. In further constructions the compressor is made double-acting the valve seating on the cylinder or on the cover. The valve in one construction is shown in two parts screwed into a strap by which it is operated. In the construction shown in Fig. 6, seatings b<1> are machined out and provided with packing in the heads F, and the valve has stops d<3> which limit the motion and engage cushioning- recesses. The cylinder heads are tapered at f and have seats f<1>. A cage containing ball valves is arranged on the right, and lifts to release imprisoned fluid The seat f<1> on the left is engaged by a coned-shaped, plate, delivery valve shown made of thin metal and turned up at the edges to act as a guide. Grooves or recesses a, a, Fig. 9, may be made in the cylinder or in the face of the valve to reduce the friction between the parts and to contain lubricant. The valve may be reciprocated by cams cranks, eccentrics, or rocking-levers connected to trunnions on the valves. Springs may move the valve in one direction or hold it to its seat. The sleeve may rest upon a metal ring by which it is operated.
Patent GB-1377771-A (GB)
Title: 1-heterocyclicalkyl-1,2,3,4-tetrahydro-4-quinazolinones intermediates  in the preparation thereof and pharmaceutical preparations cont aining them
IPC: C07D471/10
Filed: 1972-01-31
Abstract: 1377771 Derivatives of anthranilic acid and of 4-quinazolinone PENNWALT CORP 31 Jan 1972 4448/72 Heading C2C The invention comprises compounds of Formulµ (I) and (II) and their pharmacologically acceptable acid addition and quaternary ammonium salts, wherein X is NH, NR 1 , CR 1 R 6 , O or S, and R 6  is OH or OCOR 7  where R 7  is C 1-4  alkyl; A is C 1-5  (straight-chain) or C 3-5  (blanched-chain) alkylene; R is H, OH, NH 2 , AcNH, HCONH, halogen, or C 1-4  alkyl or alkoxy; R 1  and R 5  are each H, C 1-4  alkyl or mononuclear aryl or aralkyl (either of which may be substituted by NH 2 , OH, OMe, Me or Cl); R 2  is H or C 1-4  alkyl; R 3  and R 4  are each as R 1 , cyclohexyl or heterocyclyl, or CR 3 R 4  is a C 3-10  cycloaliphatic or heterocyclic ring; R 8  is as R 1 , acyl or heterocyclyl; and R 9  is OH, C 1-4  alkoxy, heterocyclyl, NH 2 , NH(C 1-4  alkyl) or N(C 1-4  alkyl) 2 . Compounds I are prepared by (1) reducing the corresponding 2,3-dehydro compounds which are made in turn by heating compounds II (where R 8  is acyl and R 9  is NH 2 , or (2) reacting compounds II (where R 9  is NH 2 ) with R 3 R 4 CO or its acetal or ketal. Compounds II are prepared by reacting together the corresponding o-aminobenzoyl precursor and the compound of formula Cl-A-N(CH 2 CH 2 ) 2 X (possibly R 2 -substituted) and optionally N-acylating the product. Starting materials of formula where Z is H or MeO, are also prepared. Therapeutic compositions comprising compounds of the above formulµ, and which are administered for test purposes orally or parenterally, have analgesic, tranquillizing, antipyretic, anticonvulsant, antihistaminic and intestinal motility suppressive activity.
Patent GB-246680-A (GB)
Title: Improvements in or relating to safety razor blade sharpening devices
IPC: B24D15/08
Filed: 1925-02-18
Abstract: 246,680. Barton, J. Feb. 18, 1925. Stropping-apparatus.-A safety razor blade 13 is sharpened by a strop, which is passed over a roller 4 carried by frame members 1, 2, between guide bars 5, 24, and over a rocking-member 22 pivoted at the end of the frame remote from the roller 4. The blade 13 is carried by a flexible strip slidable in a holder 12 having tubular ends and arranged at an inclination to the members 1, 2, one end of the holder engaging a spindle mounted in a shoulder 23 formed in the members 1. The spindle carries a toothed segment 8 engaging a toothed segment 9 on the spindle of the rocking-member 22. In operation, the strop is reciprocated, and by its engagement with the member 22 causes the blade to swing into contact with the parallel rims of the strop. Specification 187,815 is referred to.
Patent GB-615547-A (GB)
Title: Tool operating attachment
IPC: B23D57/00
Filed: 1946-02-13
Abstract: 615,547. Reciprocating saws &c. GREENE, H. R. Feb. 13, 1946, No. 4574. Convention date, March 19, 1945. [Class 145 (ii)] [Also in Group XXII] A tool-operating attachment comprises a housing 16 having one circular chamber provided with a rotary member 30 which engages the rotary shaft 12 of a machine to which the housing is affixed, and a second parallel chamber, connecting with the first, in which a cylindrical ram 36, carrying a saw ,48, is reciprocated, the rotary member being formed with a circumferential undulating groove 32 and the second chamber with a longitudinal groove 40, the ram having projecting means 38 engaging the undulating groove and means to enter the second groove. A work-holding-down member 58 is provided. In a modification, the spigot 38 is replaced. by two balls 64 and 66, Fig. 3.
Patent GB-575359-A (GB)
Title: Improvements in or relating to pre-fabricated structural elements for use in the construction of buildings
IPC: E04B1/21
Filed: 1944-03-13
Abstract: 575,359. Ferro-concrete stanchions. SCHAUFELBERG, E., and ACHESON, M. BACHTOLD-, March 13, 1944, No. 4584. Addition to 560,006. [Classes 20 (i) and 20 (iv) A modification of the pre-fabricated ferroconcrete stanchion described in the parent Specification comprises an upper unit, Fig. 2, having a leg 3 secured to the upper part of a pillar unit 2 with its lower end resting on a shoulder 5 on the pillar unit, and a lug 6 at the side remote from the cantilever projection 13 resting on the upper part of the pillar unit and secured to a lug 7 thereon. The abutting surfaces of the leg 3 and pillar 2 may be vertical or slightly inclined, and may have recesses and projections to assist in alignment; to reduce the stress on the securing bolts 4, the lug 6 may have projections 61, 62 which hook over the ends of the adjacent parts, and the abutting ends of which may be of shallow V-shape.- The complete stanchion may comprise three units, the lower end being formed separately (Fig. 4). The lugs 8, 15 may carry T-blocks 26 supporting horizontal rails 9.
Patent GB-1261334-A (GB)
Title: Improvements in folders for suspended filing systems
Inventor: CARTER EDWARD HUGH
IPC: B42F15/02
Filed: 1970-01-30
Abstract: 1,261,334. Suspension filing folders. SHANNON Ltd. 15 Dec., 1970 [30 Jan., 1970], No. 4667/70. Heading B6E. A suspension filing folder assembly in the form of a concertina comprises a plurality of folders 4, 5, 6, the folders 4, 5 being identical and each formed with tunnels along their respective upper edges 8, 9, whereby one tunnel has three spaced sections 10, 11, 12 and the other one has two complementary sections 13, 14, which fit between respective tunnel sections on adjacent filing folders. The filing folder 6 which is an end unit has one edge 11a formed with a continuous and the other one formed with three tunnel sections. The filing folders have their tunnels or tunnel sections provided with slots 16 which are spaced such that a pair of adjacent edges of tunnel section also forms a slot for. reception of lugs 18 on an index tab 17 made of transparent plastics material.
Patent GB-254630-A (GB)
Title: Improvements in automatic regulating devices
IPC: G05D16/06
Filed: 1926-02-18
Abstract: 254,630. Wingfield, B. T. Feb. 18, 1926. Addition to 254,469. Valves controlled by pilot or relay valves.-In a relay valve apparatus, hunting is prevented by imparting to the relay valve a. check movement or a movement in the opposite direction to that given by the impulse device so that movement through the whole travel is prevented. The valve A, Fig. 1, is actuated by a bellows device B under the control of fluid pressure admitted through an adjustable valve C. A fixed plate P carries an adjustable leak valve E, and a device Q which transmits an impulse from the impulse device. A lever H connects the spindles of the valves A and E to the device F. The valve A is held open by pressure in the chamber B, and valve E is closed when the impulse device is inoperative. The end O of the lever moves upwards about the point L as a pivot, lost movement being provided corresponding to full movement of the end O with full lift of the valve A. When the impulse device is at the desired point, valve E is adjusted so that it is just open and releases pressure from the chamber B through pipe M. When an impulse opens the valve E, and causes valve A to close under the influence of its return spring, the closing movement tends to close the valve E, thus inhibiting the movement of the valve A. The lever ratio IL: OL may be varied to graduate the movement of the valve A. over any desired movement of the impulse device. A modification is described in which the impulse is used to control by fluid pressure a valve which admits pressure to a cylinder having a piston which actuates the main valve or the like. Another modification is described, suitable for small impulse movements.
Patent GB-539120-A (GB)
Title: Improvements in and relating to electric contacts
IPC: H01H1/023
Filed: 1940-03-13
Abstract: 539,120. Alloys ; electric contacts. JOHNSON, MATTHEY & CO., Ltd. March 13, 1940, Nos. 4747 and 4748. Convention dates, March 16, 1939, and April 25. 1939. [Class 82 (i)] [Also in in Group XXXVII] Alloys for electric contacts consist of silver with 0.5-25 per cent. of cadmium and 0.05-15 per cent. of magnesium, with or without up to a total of 5 per cent. of copper, nickel, cobalt, iron, or manganese. The opposing contact may be made of tungsten, or of an alloy of silver with gold, palladium, or platinum, with or without small amounts of nickel, iron, cobalt, or manganese. Specifications 267,263, [Class 82 (i)], and 453,419, are referred to. The Specification as open to inspection under Sect. 91 refers also to the application of the alloys to jewellery, tableware, and the like. This subject-matter does not appear in the Specification as accepted.
Patent GB-798690-A (GB)
Title: Fertilizers
Inventor: BACON CYRIL GODFREY
IPC: C05C13/00
Filed: 1955-02-17
Abstract: Ammonium sulphate nitrate, containing, e.g. 20-70 per cent ammonium sulphate, is prepared by reacting aqueous or gaseous ammonia with a solution prepared by adding solid or aqueous ammonium sulphate to nitric acid solution.  Solid ammonium sulphate may be added to 50 per cent nitric acid solution.  A solution of ammonium sulphate nitrate may be thereby produced which is then evaporated and crystallized. The crystallized product may be crushed.  Alternatively, molten ammonium sulphate nitrate together with steam may be produced by introducing gaseous ammonia and ammonium sulphate-nitric acid solution into the upper end of a downwardly inclined reaction zone filled with inert packing material.  The temperature of reaction may be 160-300 DEG  C. The reactants may be preheated.  The stoichiometric amount, or a slight excess, of ammonia may be employed.  The molten material may be granulated with or without other materials, e.g. fertilizers, or solidified and then flaked or crushed.
Patent GB-431880-A (GB)
Title: Improvements in and relating to gauges
IPC: G01B5/28
Filed: 1934-02-13
Abstract: 431,880. Surface and outline gauges. PERRIER, J., Callestick Farm, Selsdon Vale, Selsdon, South Croydon. Feb. 13, 1934, No. 4798. [Class 106 (ii)] Comprises a frame carrying two rows of hard balls angularly spaced apart on the surface of an imaginary cylinder so that a cylinder placed on them makes contact with all the balls, and a single tactile member freely disposed on the cylinder opposite and between the rows of balls and connected to an indicator. The hollow frame 1 having a boss 2 projecting laterally therefrom is fitted with a hard steel liner 3 within which is a cylindrical housing 4 carrying two rows of steel balls 5 lodged in slots 6. The slots are undercut so that the balls project through to form line supports for the test piece. At each end of the frame is a boss housing a spring 8 which bears on a ball 9 projecting through holes in the liner and housing. A central ball 13 projects through similar holes and engages the feeler 14 of an indicating device. In use the work is inserted into the housing and rested on the rows of balls 5. Screws 15 are then turned to cause the springs 8 to press the balls 9 against the work and the latter against the balls 5. The work is then rotated and the indicator reading noted. In a modification, the balls may be housed in undercut slots in the frame, being inserted from the open end of the slot. The ends of the slots are closed by rings secured to the frame. These are split and provided with means for forcing one half against the other. A disc fitting the interior of the boss slides therein and forms a cage for a ball engaging the plunger 14. In this construction, the whole casing may be split and the two parts hinged at one side so that the gauge may be placed around the work between collars.
Patent GB-948802-A (GB)
Title: Improvements in and relating to circular knitting machines
IPC: D04B35/00
Filed: 1961-02-09
Abstract: 948,802. Knitting machines. G. BILLI, and V. LUCHI. Feb. 9, 1961 [Feb. 15, 1960], No. 4808/61. Heading D1C. A yarn severing device for cutting the yarn extending between a raised yarn guide 2 and the needles 1 of a rotat cylinder knitting machine comprises a first flat ring cutting element 15, supported on a stationary cover 3 and frictionally driven by a rotary plate 5 carrying welt hooks 6, and a second co-operating cutting disc 21 substantially at right angles thereto. The disc 21 is spring pressed on to, and rotated by the ring 15 and has a recessed inner face into which the cutting edge of the ring extends. The yarn is severed at a zone A close to the needles when the appropriate guide 2 is raised and the severed yarn from the guide is held by a suction nozzle 8 or mechanically. The cutting ring 15 may be positively rotated if desired and the disc 21 may be independently rotated. The ring 15 may be replaced by a disc similar to disc 21 and also supported on the cover 3. The disc 21 may be set obliquely to provide a single cutting point and may be adjustable to provide for cutting point and may be adjustable to rotation of the needle cylinder.
Patent GB-1467595-A (GB)
Title: Metal complexes of azomethines and process for their manufacture
IPC: C08L1/00
Filed: 1975-02-05
Abstract: 1467595 Azomethine metal complexes CIBAGEIGY AG 5 Feb 1975 [6 Feb 1974] 4818/75 Heading C4P The invention comprises a metal complex of an azomethine of the general formula wherein R 1  represents a hydrogen atom, an alkyl or an aryl group, R 2  represents an isocyclic or a heterocyclic radical with a hydroxy group adjacent to the azomethine group or R 1  and R 2  together with the carbon atom of the azomethine group represent a 5- or 6-membered heterocyclic ring containing a group capable of forming a complex with a bivalent metal and which may be fused with benzene nuclei each of X 1  and X 2  independently represents alkyl, cycloalkyl, aralkyl or aryl radicals or together X 1  and X 2  represent an optionally substituted fused carbocyclic or heterocyclic aromatic ring and Y represents an optionally chloro- or methylsubstituted 1,3-dioxotetrahydroquinolyliden-2 radical or a radical having one of the formulae =C(R 4 )CW, =N-Q 1  or =N-NH-COQ 2  wherein R 4  is a ureidocarbonyl, a cyano, an acyl, an alkoxy-carbonyl, a carbamoyl or a sulphamoyl group or a radical of the formula V wherein V represents an oxygen or sulphur atom, or an imino group, Y 2  and Y 3  represent H or halogen atoms, 1 to 4 C alkyl or alkoxy groups or nitro groups, Q 1  is a heterocyclic radical and Q 2  is an alkyl or aryl radical. Typical complexes have the formula wherein R 3  represents a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, M 1  represents a Ni, Cu, Co or Zu atom and A represents an isocyclic or heterocyclic radical and Y is as in formula I. Other preferred complexes are those of compounds of the formula wherein Z 1  and Z 3  represent hydrogen or halogen atoms, alkoxy or alkylmercapto groups, of 1 to 6 carbon atoms, cycloalkyl groups, aralkoxy, aryloxy or arylmercapto groups, Z 2  and Z 4  represent hydrogen or halogen atoms and one of the substituents Z 1  to Z 4  can also be a nitro group and particularly those where Y represents a radical of the formula Other complexes specified have the formula II and III wherein Y represents a radical of the formulae wherein R 6  represents a hydrogen atom or an alkyl group or a phenyl radical which may be substituted by halogen atoms or alkyl or alkoxy groups of 1 to 4 carbon atoms. The invention also comprises the preparation of azomethines of the formula I by condensing the appropriate hydrazone with an oxo compound of the formula R 1 R 2 CO or the anil thereof. The ligands are converted into the complexes by treatment with, for example, the formates, acetates or stearates of the corresponding metals. In single step processes the ligand is prepared by condensing the appropriate hydrazine or hydrazone derivative with a compound H 2 Y or R 1 R 2 CO or by reaction of H 2 N-N=CR 1 R 2  with a compound of formula VI in the presence of the agent that denotes the bivalent metal.
Patent GB-1530791-A (GB)
Title: Radiation scanning system
IPC: H04N3/09
Filed: 1975-02-05
Abstract: 1530791 Telecentric scanners BARR & STROUD Ltd 30 Dec 1975 [5 Feb 1975] 4843/75 Heading G2J [Also in Division H4] In a scanning system an aerial image 15 of a scene formed by means (eg lens) 14 is to be scanned on to detector 11 via oscillatory (or rotary) mirror 12 and relay lens 11. Due to rotary motion of mirror 12 the locus of the reflection of conjugate focus 16 of lens 11 lies on an arc 17, resulting in distortion. The invention reduces this distortion by interposing a curved mirror 13 whereby the aerial image is formed substantially coincident with arc 17. Fig. 1 shows a plan and Fig. 2 an elevation, the offset arrangement being adopted to prevent obscuration of the field by the scanning lens. The detector 10A comprises a vertical row of detectors. In further embodiments Figs. 6, 7 (not shown) the detector array 10 is for I.R. radiation, and each detector element controls a respective emitter in a similar array of visible light emitters. A substantially identical (but inverted) scanning system projects the light from the array to an observer. Preferably the I.R. oscillatory mirror 12 and the visible oscillatory mirror are two surfaces of the same oscillatory component. Reference levels for the detector may be provided by sources 37, 38 or by specially treated end portions of mirror 13. Specification 1530792 divided herefrom is directed to such matters.
Patent GB-310594-A (GB)
Title: Improvements in the production of salts
IPC: C05C1/00
Filed: 1928-02-16
Abstract: 310,594. Mitchell, A. E., and Imperial Chemical Industries, Ltd. Feb. 16, 1928. Manures.-A mixed solution of calcium and ammonium nitrates, from which a mixture of the solid salts may be prepared by spraying the concentrated solution into a current of air, is obtained by feeding a suspension of chalk in water or calcium nitrate solutiom containing ammonium nitrate obtained from a previous operation in at the top of a packed tower, supplying excess of nitric acid to the tower at a lower level than the chalk suspension, and neutralizing the excess of nitric acid in the resulting solution by feeding gaseous ammonia in at the base of the tower.
Patent GB-1083963-A (GB)
Title: Automatic wire binding machine
IPC: B65B27/06
Filed: 1965-02-04
Abstract: 1,083,963. Twisting wires together. WAFIOS WAGNER, FLICKER & SCHMID G.m.b.H. Feb. 4, 1965 [Feb. 7, 1964], No. 4918/65. Heading B3E. [Also in Division B8] Apparatus for binding a wire round a coil or bundle comprises twisting grippers arranged to project one on each side of the coil to receive a wire fed in a direction at right angles to the axis of rotation of the grippers, the grippers, after cutting the wire, drawing it about the article and coming together to twist it. Further cutting means severs the wire ends from the twist. Rollers 30, (31), see also Fig. 2 (not shown), feed the wire through a guide bore 20A into downwardly opening grooves, Fig. 5 (not shown), in the jaws 16, 17 of twister arms 4, 5, raised with the twister head 2, to the chaindotted position to extend above the coil C. Contiguous with the jaws are cutting elements 18, 19 having wire receiving bores 18A, 19A. The arms then descend and come together beneath the coil, one of the elements 18, 19 having out the wire adjacent the guide bore 20A, the front face of which also acts as a cutter. The head 2 then rotates with a shaft 1 to complete the twist. Cutters (8), (9) mounted in slideways 6, 7 on the head and at least one of which is radially slidable, sever the wire ends. The cutters may also fold the twist down on to the bundle and may be altered in height to vary the length of twist. The twister head is rotated by a crank-driven rack 23 and a pinion 22, and jaw closure is derived from pins 13, 14 on plates 11 (12) rotating with the head but fixed against vertical sliding, acting on the arms 4, 5. During twisting, the head 2 is freely supported on a spring 35. The cutters 18, 19 may be magnetized to prevent dislodgement of the wire after initial cutting. The apparatus may be fixed, or suspended for application to an article to be bound. The wire length is adjustable by adjusting the cutters 18, 19 on the arms and replacing the element 20A.