baber/WOPTO huggingface dataset:
Patent GB-577905-A (GB)
Title: Improvements relating to automatic release mechanisms operating by immersion
IPC: B63B21/60
Filed: 1943-04-27
Abstract: 577,905. Release mechanism for hooks; igniting fuzes &c. WALTER KIDDE CO., Ltd., and LAMBERT, G. April 27, 1943, No. 6641. [Classes 9 (i) and 9 (ii)] [Also in Groups XXV and XXXVII] An automatic release mechanism, operating by immersion in a liquid, and stated to be applicable to explode a cartridge, to release a train of levers or to close an electric circuit, comprises a disc of blotting-paper or other fibrous material, which weakens or disintegrates when an annular portion thereof is moistened, so as to permit relative movement between two parts normally urged to move, but restrained by the disc while dry. An explosive charge C Fig. 1 may be fired by a striker D urged towards the charge by a spring D<x> but restrained by a blotting-paper &c. washer E clamped between a collar D<2> and distance piece D<3> backed by a nut D<4>, on the striker, and between a nut F and the striker-housing A. The striker is positively held at safe by a pin H through a cap G and the nut D<4> a spring G<1> being fitted to eject the cap G on removal of the safety pin H, thereby permitting ready access of liquid on immersion, to the annular surface of the blotting-paper washer between the distance-piece D<3> and nut F. A cable K<2>, Fig. 2, may be released from a member J carried by a cable J<2> when. a keeper K moves upward under spring pressure L when a blotting-paper &c. washer E becomes wet and fails, and thereby releases a hook K<1> which is pivoted to the member J and partly embraces the cable K<2>. According to the Provisional Specification the release mechanism may also be used to inflate a rubber dinghy or to ignite a marine flare.
Patent GB-650533-A (GB)
Title: Improvements in automatic weighing scales
IPC: G01G1/00
Filed: 1947-03-10
Abstract: 650,533. Weighing apparatus. SOC. ITALO-SVIZZERA ROTOR, AR.L., and ROLANDO, C. March 10, 1947, No. 6649. [Class 143] In an automatic weigh scale the load is counterbalanced by a pair of pendulum weight resistants 4 each of which pivots about a fixed knife edge fulcrum 2 and carries an eccentric sector 7 and a concen-- tric sector 3 which are connected with the load and the indicating mechanism respectively by flexible ribbons. The eccentric sectors 7 are coupled to the load through a yoke 9 which is connected with a dashpot 15, and pivoted to a rod 9<SP>1</SP> to allow rotational adjusting movement of the head about a vertical axis. An open ended frame 6 is connected with the concentric sectors 3 by ribbons 5, and carries a rack 10 which rotates the indicator spindle 11 and carries a scale (not shown) which cooperates with holes in the front and rear of the casing to indicate units of weight, the indicators 16 serving to indicate fractions of said units. Friction is reduced in the indicating mechanism by forming the bearing for the spindle 11 from a pair of counterbalanced cylindrical sectors 12 pivoted at 14, 14' and rotated in opposite directions synchronously with the pendulums 4 by a connecting rod 13 and a link mechanism 12<SP>11</SP>. In a modification, Fig. 3 (not shown) the units of weight are indicated by a second dial mechanism operatively connected with a third sector on one of the pendulums 4 by a steel ribbon. In another modification the knife edges 2 are symmetrically loaded by replacing each sector 3 by a pair of sectors disposed on each side of each knife edge and arranged parallel with one another.
Patent GB-731052-A (GB)
Title: Improvements in or relating to soil conditioning agents and methods of preparing thesame
Filed: 1952-03-14
Abstract: Copolymers of vinyl acetate, an alkyl half-ester of maleic acid having up to three carbon atoms in the alkyl group and maleic anhydride are made by esterifying one mol. of maleic anhydride with from 0.2 to 0.6 mol. of the alcohol and polymerizing, e.g. in bulk, this product with from one to two mols. of vinyl acetate. The water-soluble partial calcium salt is obtained by after-treating the polymer with water and with 0.1 to 0.5 mol. of calcium oxide, hydroxide or carbonate.  The polymers, alone or in conjunction with a diluent or extender, e.g. a fertilizer, may be used as soil conditioning agents.  If desired, the calcium salt may be formed in the soil in situ by the addition of a mixture of a copolymer of vinyl acetate, the alkyl half-ester of maleic acid, and maleic anhydride, and calcium oxide, hydroxide, or carbonate. The bulk polymerization is preferably effected in two stages. The catalyst may be benzoyl peroxide, an ester of perboric, percarbonic or persulphuric acid, or an organic hydroperoxide. The extender or diluent may be water, peat moss, limestone, gypsum, sand clay, mineral fertilizer, or silage. The compositions may also contain trace elements of boron, manganese, magnesium, molybdenum, cobalt, or iron.  Specifications 730,463 and 730,464 are referred to.ALSO:Copolymers of vinyl acetate, on alkyl half ester of maleic acid and maleic anhydride, or the water-soluble partial calcium salt of this polymer and compositions comprising these copolymers (see Group IV (a)) are used as soil conditioning agents by incorporating the copolymers or compositions into the soil by conventional method.  The other ingredients of the composition may be extenders and fertilizers such as peat moss, limestone, gypsum, sand, clay, mineral fertilizers, or silage.  The compositions may also contain trace elements of boron, manganese, magnesium, molybdenum, cobalt, or iron.  Specifications 730,463 and 730,464 are referred to.
Patent GB-592248-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H01J61/54
Filed: 1945-03-17
Abstract: 592,248. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and STEPHENS, G. O. March 17, 1945, Nos. 6775 and 10709. [Class 39 (i)] A fluorescent lamp 1 has an ignition strip 8 on the exterior of the envelope, consisting of a deposit of conducting material such as comminuted metal or carbonaceous material, which is not connected to either electrode, but is earthed. The envelope may be previously roughened by sand blasting or etching or may be grooved. Suitable metals are aluminium, zinc, tin, or copper and a binder such as nitro-cellulose, amyl or cellulose acetate may be used or the metal may be sprayed directly through a suitable templet. A cement such as sodium silicate may be applied to the envelope before spraying. The strip may terminate in bands round the envelope as indicated at 9 or by bands overlapping the metal shells of the contact caps as at 10 or the strip may end on these shells. When the strip is not connected to the shells of the caps it may be earthed through a spring member attached to the lamp socket or to the fitting housing the socket. The circuit includes an autotransformer to start the discharge when the electrodes have reached a predetermined temperature. The filling is argon or neon at a pressure of 2 to 6 mms. mercury..
Patent GB-912267-A (GB)
Title: Production of organosilicon polymeric materials
Inventor: MESTON ALEXANDER MARSHALL
IPC: C08G77/60
Filed: 1960-02-26
Abstract: Silphenylene polymers are made by reacting together, in the presence of a solvent, an organolithium compound of the formula RLi, wherein R is an alkyl radical of 2 to 10 C atoms, and a compound of the formula <FORM:0912267/IV(a)/1> wherein R1 and R11 are each an alkyl, aryl, alkaryl, aralkyl or alkenyl radical having 2 to 20 C atoms, X is Br or I, Y is Cl, Br, I or an alkoxy radical and the group -C6H4- is a meta- or para-phenylene group.  Solvents used are ethers and aliphatic and aromatic hydrocarbons.  The reaction can be effected at temperatures from -100 DEG  to 100 DEG C.  In a typical Example (4) a pentane solution of n-butyl-lithium was added to a cooled (-75 DEG C.) diethyl ether solution of dibenzyl-p-bromophenyl chlorosilane and the mixture slowly warmed to 15 DEG C. for two hours, after which water was added and the ether layer was separated and purified to yield white crystals of the polymer.  Uses: as heat-resistant plastics and thermally stable lubricants.
Patent GB-914860-A (GB)
Title: Improvements relating to variable electrical impedances
Inventor: MASH DEREK HUBERT
IPC: H01G7/00
Filed: 1960-02-26
Abstract: 914,860. Inductances. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 6, 1961 [Feb. 26, 1960], No. 6865/60. Class 38 (2). [Also in Groups XXXVI and XL (b)] A variable resistor and/or inductor comprises a resistive or inductive path arranged substantially parallel to a conducting path, the space between consisting of a photo-conductor over which a beam of light is arranged to pass, thereby providing the equivalent of a sliding contact. A variable capacitor may be provided on a similar basis. Fig. 1 shows a variable resistance or inductance in which an inductive or resistive strip 9 is separated from a conducting strip 10 by a strip of photo-conductive material 11. One (or both) ends of strip 9 is connected to an electrode 12. Light from source 2 is applied to a selected portion of photo-conductive strip 11 by rotating an opaque cylinder 4 having a slot or aperture 5, so that the corresponding selected portion of strip 11 is connected to conducting strip 10. In an alternative arrangement (Fig. 3, not shown) the light beam is projected through a glass cylinder bearing successively (i) a transparent conductive coating of gold or stannic oxide (ii) a photo-conductive layer and (iii) a resistive layer, one part of which is connected to an electrode. The photo-conductive material may consist of selenium or cadmium sulphide with copper or chlorine used as activators.
Patent GB-809824-A (GB)
Title: Improvements relating to spades or like implements
IPC: A01B1/02
Filed: 1955-03-09
Abstract: 809,824. Hand digging tools. BULLOCK, A. S. June 7, 1956 [March 9, 1955 ; Dec. 29, 1955], Nos. 6872/55 and 37189/55. Class 6(2). A digging implement as shown in Fig. .10, comprises a channelsectioned shank E having a blade H secured to its lower end and a handle A connected tc its upper end, by means of a resilient member which allows controlled displacement of the handle relative to the shank. The blade H is mounted on a stub shank M pivotally con nected at N to a sup porting member J which  is in turn pivotally connected to the shank E at F. A metal tongue P fixed to the stub shank M protrudes through a slot in the shank E and passes over a roller Q which bridges the end of the shank. In operation, the blade H is inserted in the ground until the support J rests on the ground the handle A is pulled towards the operator, thereby flexing the resilient member between the handle and the shank E, whereupon a further pull on the handle A causes the soil in front of the blade to break and the shank E, under the influence of the resilient member, resumes its normal position with respect to the handle A, thereby making the roller Q press against the tongue P and causing the stub shank M and the blade H to swing forward and thus discharge and invert the soil on the blade. The construction of the tool may be simplified as shown in Fig. 2, by securing the blade directly to the shank E.
Patent GB-887204-A (GB)
Title: Improvements in inductance coil structures
IPC: H01F37/00
Filed: 1957-03-01
Abstract: 887,204. Inductances. HANSEN, H. C. Feb. 27, 1958 [March 1, 1957], No. 6890/57. Class 38 (2). An inductance coil comprises an inner core 10, which may be laminated, embraced by a coil 14 and forming a closed magnetic circuit with an outer core structure 12, at least those parts of the outer core structure which are located adjacent the ends of the inner core being of sheet material the inner faces of which face towards the inner core ends and being provided with means, such as slots 16, 18, extending inwardly from an edge to cause eddy currents generated in that part of the outer core, by facewise entry of flux from the adjacent inner core end, to circulate in at least two separate circuits. The outer core 12 may be wound from strip, and the coil leads may be brought out through one of the slots. Coverplates 20 and 22 of magnetic material with an oxide coating may be taped or spot-welded to the outer core; one of these 22 may have extensions 24, 26 to carry a terminal block 28. The outer core structure may be made by the method of Specification 887,205. According to the Provisional Specification the structure may be a stray-field transformer.
Patent GB-609127-A (GB)
Title: Improvements in and relating to apparatus for emptying, washing-out, re-filling and re-steaming locomotive boilers
IPC: B61C8/00
Filed: 1946-03-06
Abstract: 609,127. Emptying, refilling, &c. locomotive boilers. ECONOMICAL BOILER WASHING CO., Ltd., and SOUTH, E. J. H. March 6, 1946, No. 6980. [Class 123(ii)] In apparatus for emptying, washing-out, refilling and resteaming locomotive boilers, at a location in an engine shed, comprising a drop-pipe 14 depending from a fitting 15, which is common to overhead blow-out, filling and steam lines 9, 11, 12 provided with valves 20, 21, 22 respectively, and a second drop-pipe 13, fitted with a handvalve 16, which leads from a washing-out water line 10, the valves 20, 21, 22 are each opened by power-operated means, for example a piston 29 which is mounted in a cylinder 25 and may be subjected to the pressure in the line associated with the corresponding valve, under the control of cocks 33, 34, 35. The valves 21, 22, may also be closed by the same means, but the valve 20 in the blow-out line, in which pressure is not maintained, is closed by an associated balance-weight 68. The cock 33 comprises a hollow plug 37 mounted in a casing which is provided with lower and upper ports 40, 41, connected by pipes 53, 56 to the upper and lower ends of the cylinder 25 and adapted to mate with ports 42, 43 in the plug, and a port 38 in its end cap 39 which is connected by a pipe 54 with the filling line 11 and opens into the interior of the plug; recesses 46, 47 are also provided in the surface of the plug for establishing communication between the said ports 40, 41 and exhaust ports 48, 49 in the casing respectively. The arrangement is such that, upon rotation of the plug 37 to bring the ports 40, 42 into alignment, the ports 41, 49 will be brought into communication with one another, whereupon water under pressure from the line 11 will be admitted to the upper end of the cylinder 25 and, simuultaneously, the lower end of the cylinder will be opened to exhaust, the piston 29 being forced downwardly to open the valve 21 through the rod 51 and lever 50 and the valve remaining open until the plug is again rotated to bring the ports 41, 43, and 40, 48 into mating and communicating positions respectively. The cock 35 for the valve 22 is similar to the cock 33, but that 34 for the counterweighted valve 20 requires only single delivery and exhaust ports 40, 48 in the casing and a single through-port and recess 42, 46 in the plug. All the valves 20 ... are provided with indicators 57 which may be vertical slides, marked " open " and " closed" coupled by rods 61 one to each of the pistons associated therewith. The steam line 12 may be provided with a byepass or bleed passage 23 having a valve 24 controlled by a cock 36, similar to the cocks 33, 35, to enable pressure to be maintained in the boiler without the necessity of leaving open the main steam valve 22.
Patent GB-745440-A (GB)
Title: Method of and mould for the centrifugal casting of metals
IPC: B22D13/06
Filed: 1953-03-13
Abstract: 745,440. Centrifugal casting-machines. NIELSEN, F. March 13, 1953, No. 7053/53. Addition to 690,790. Class 83 (1). A method of centrifugal casting, wherein the metal to be cast is guided by a series of passages 12, 14, 16, 18 from the end of the inlet 10 to the gate 20, is characterized in that, by at least two deflections or other energy-consuming formations, preferably having a shock effect, the energy (i.e. the sum of the velocity energy and pressure energy) of the metal being poured is destroyed to such an extent that the energy of the metal entering the mould cavity 22 does not exceed 25 per cent of the initial energy on pouring. The runner cross-sections are correspondingly widened in stages for the same purpose. When the flow of metal along a runner section is away from the axis of rotation, the cross-sectional area along the length of the section between the deflections at each end continuously decreases and vice versa.
Patent GB-667337-A (GB)
Title: Apparatus for and method of charging batch to glass furnaces
Inventor: LYLE AARON KERR
IPC: C03B3/00
Filed: 1950-03-21
Abstract: 667,337. Feeding batch to glass-melting furnaces. HARTFORD-EMPIRE CO. March 21, 1950, No. 7071/50. Class 51 (ii). In a glass-melting furnace, rapid and even melting is encouraged and the escape of dust prevented by feeding batch material behind a rabble on to the surface of the molten metal, displacing the metal forwardly by the rabble, returning the rabble on a closed circuit above the metal, and infolding a portion of the batch material in the molten metal on the next forward stroke. Batch material from a hopper 47 is fed by a variable-speed vibrator shoot 48 controlled by a timer 50 and rheostat 51 through a guiding shoot 45 on to the molten metal surface in a doghouse 30 behind a rabble 22, which, after displacing a portion of molten metal by a forward-upward movement is returned on the path shown in dotted lines in Fig. 1, each complete circuit of the rabble 22 resulting in the infolding by molten metal of a portion of batch material as shown in Fig. 5. The rabble is carried by two arms 20 adjustably supported on girders 10 pivoted at one end to link 13 and at the other end to arms 8 rotating about an axle 7 which is driven by a motor 6 through reduction gearing 3. The links 13 are pivoted to a base-member 15 supported on threaded rods 33, 34, Fig. 3, which may be adjusted vertically by sprocket assemblies 35 and 36 connected by a chain 40 and actuated manually by a wrench placed in holes 39 in the sprocket assembly 35. The vibrator shoot 48 may be operated intermittently.
Patent GB-565144-A (GB)
Title: Improvements in machines for wrapping plastic materials
IPC: B65B25/06
Filed: 1943-05-05
Abstract: 565,144. Wrapping-machines. FORGROVE MACHINERY CO., Ltd., RUSSELL, A., PARKER, M., and HARRIS, R. A. May 5, 1943, No. 7099. [Class 94 (i)] In a machine for wrapping blocks of plastic material, e.g. butter, a lifting plunger 18 receiving the blocks 14 from the die plunger 13 of an extrusion device as described in Specification 565,143, moves the blocks 14, together with the wrapper 21 which has been fed and positioned as described in Specification 559,357, [Group XVI], into the jaws 19 of a cruciform wrapping wheel 20, the lifting plunger traversing a triangular path, namely, upwardly, to feed the block into the jaws, horizontally or nearly so, leaving the block in the jaws, and then diagonally downwards to its starting position. As the wrapper and block move into the jaws, the wrapper is positioned about three sides of the block ; the depending end of the wrapper remote from the plunger is then folded against the bottom of the block in known manner, the other depending end then being folded by a stationary curved folder 23 during the rotation of the wheel 20. Side tucks are then formed in the projecting ends of the wrapper which are then folded down on to the block.
Patent GB-632927-A (GB)
Title: The stabilisation of polythionic acid and polythionate solutions
Inventor: NEESBY TORBEN EMIL
IPC: C01B17/64
Filed: 1946-03-07
Abstract: Stable solutions of polythionic acid compounds are produced by the addition thereto of substances consisting of salts of such polyvalent heavy metals as are capable of forming in the said solution compounds of the said metals in the oxidized and reduced states.  Preferably the pH should be adjusted to below 3.  Cupric and ferric salts are specified stabilizers, which may be used alone or in conjunction with one or more of the nitrogen-containing compounds of Specification 632,929, or the wetting agents of Specification 632,928.  Alcoholic or other organic solutions of polythionates may be prepared by adding sufficient of a metallic hydroxide or carbonate, e.g. cupric or ferric hydroxide or of an organic base, e.g. triethanolamine, to the solution of polythionic acid to produce the required degree of neutralization.  The examples relate to the stabilization of aqueous solutions of pentathionic acid, sodium pentathionate, potassium pentathionate, potassium tetrathionate and alkali metal tetrathionates in general.ALSO:Stable solutions of polythionic acid compounds for use in cosmetics and external medicines are produced by the addition thereto of substances consisting of salts of such polyvalent heavy metals as are capable of forming in the said solution compounds of said metals in the oxidised and reduced states. Preferably the pH should be adjusted to below 3.  Cupric and ferric salts are specified stabilizers, which may be used alone or in conjunction with one or more of the nitrogen containing compounds of Specification 632,929 or the wetting agents of Specification 632,928. Alcoholic or other organic solutions of polythionates may be prepared by neutralizing such a solution of polythionic acid with the metal oxide or carbonate, e.g., cupric or ferric or with an organic base, e.g., triethanolamine.  The examples relate to the stabilization of aqueous solutions of pentathionic acid, sodium pentathionate, potassium pentathionate, potassium tetrathionate and alkali metal tetrathionates in general.
Patent GB-426290-A (GB)
Title: Manufacture of preparations having an anti-emetic action
IPC: A61K9/50
Filed: 1934-03-07
Abstract: An anti-emetic preparation is made by precipitating a sparingly-soluble compound of a rare earth from a solution of a rare earth salt in the presence of a protective colloid and subjecting the wet precipitate to a grinding process, if desired after the addition of a further quantity of a protective colloid. The colloidal solutions obtained can be evaporated to give dry preparations which re-dissolve.  According to examples: (1) A solution of cerium earth metal nitrates is precipitated with a solution containing oxalic acid and gum arabic.  The precipitate after washing is ground in a ball-mill with gum arabic.  Albumin oxidation or degradation products may replace the gum arabic.  (2) A solution of cerium nitrate is precipitated with a solution of disodium phosphate and gum arabic, and the precipitate washed and ground whilst wet.  The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 426,291 and states that the preparations may be made into pills or tablets with the addition of substances improving the taste or facilitating shaping.  An example is given of the preparation of a colloidal solution of thorium oxalate.  This subject-matter does not appear in the Specification as accepted.ALSO:An anti-emetic preparation is made by precipitating a sparingly-soluble compound of a rare earth from a solution of a rare earth salt in the presence of a protective colloid and subjecting the wet precipitate to a grinding process, if desired after the addition of a further quantity of a protective colloid. The colloidal solutions obtained can be evaporated to give dry preparations which redissolve.  According to examples: (1) A solution of cerium earth metal nitrates is precipitated with a solution containing oxalic acid and gum arabic.  The precipitate after washing is ground in a ball-mill with gum arabic.  Albumin oxidation or degradation products may replace the gum arabic.  (2) A solution of cerium nitrate is precipitated with a solution of disodium phosphate and gum arabic, and the precipitate washed and ground whilst wet.  The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 426,291, and states that the preparations may be made into pills or tablets with the addition of substances improving the taste or facilitating shaping.  An example is given of the preparation of a colloidal solution of thorium oxalate.  This subject-matter does not appear in the Specification as accepted.