baber/WOPTO huggingface dataset:
Patent GB-593961-A (GB)
Title: Improvements in or relating to roll type closures
IPC: E06B9/17
Filed: 1945-06-20
Abstract: 593,961. Shutters. ROBIN, M. H. June 20, 1945, No. 15778. [Class 20(iii)] [Also in Groups XIV and XVII] In roller shutters wherein the slats have integral slidably engageable hinge elements these comprise cylindrical roller and socket portions each with an abutment face to form a rule-joint so as to provide a substantially flat surface when the slats are aligned. Each slat may have a roller b and a socket c, Fig. 1, or alternate slats may have rollers g<1> and sockets h<1> respectively, Fig. 3. The slats are formed by extrusion, preferably of plastic material and may be transparent.
Patent GB-603779-A (GB)
Title: Improved process for recovering magnesium salts
IPC: C01F5/00
Filed: 1943-09-27
Abstract: Water-soluble magnesium salts are extracted from unstable hydrous magnesium silicates, e.g. serpentine, garnierite or genthite by calcining to a residual water content of below 8 per cent, but short of complete dehydration and dead-burning, agitating the calcine with mineral, e.g. hydrochloric, nitric, or sulphuric acids, adjusting the solution pH to not less than 6, preferably 7.4, and separating gangue.  To reduce solution of iron and silica, the pH is preferably controlled during the agitation. The solution may be recycled until a sufficient magnesium concentration is reached, and may be successively or simultaneously evaporated to flocculate silica, treated with magnesia in slight excess to precipitate aluminium, manganese and nickel and with lead oxide to precipitate chromium as chromate. After cooling to not over 160 DEG  F., calcium may be removed by a 5-25 per cent excess of alkali bicarbonate and the excess destroyed with acid corresponding to the desired salt.  The solution is finally evaporated to recover the solid salt. Specification 597,028 is referred to.  The Specification as open to inspection under Sect. 91 describes the application of the process to any magnesia-containing substance.  This subject-matter does not appear in the Specification as accepted.
Patent GB-420444-A (GB)
Title: Process for the manufacture of compounds of the diphenylamine sulphone series
Filed: 1933-06-01
Abstract: Diphenylamine sulphone compounds are manufactured by treating diphenylamine compounds, having in each nucleus a free o-position to the imino group, with fuming sulphuric acid of an SO3-content of more than 25 per cent, and at a temperature above about 50 DEG  C., preferably with fuming sulphuric acid of 60--70 per cent SO3-content at 80--125 DEG  C., and, if desired, splitting off the sulphonic groups from the products by known methods, e.g. by heating at elevated temperature and under superatmospheric pressure in dilute mineral acids.  The products may be employed in the manufacture of dyestuffs and synthetic drugs.  In examples: (1) diphenylamine is dissolved in sulphuric acid monohydrate and treated with fuming sulphuric acid of 65 per cent SO3-content at about 80 DEG  C. and the product is poured on to ice and neutralized with milk of lime yielding the calcium salt of diphenylamine sulphone-tetrasulphonic acid, which is transformed into the potassium salt by the action of potassium carbonate; this product, or the calcium or sodium or other salt, is heated in an autoclave with aqueous sulphuric acid to produce diphenylamine sulphone; (2) 3-hydroxydiphenylamine is similarly treated at 120--130 DEG  C. and worked up as in (1) to produce the potassium salt of 2-hydroxydiphenylamine sulphone-tetrasulphonic acid, which is converted into 2-hydroxydiphenylamine sulphone; in a similar manner phenyl-m-toluylenediamine (CH3:NH2:C6H5NH = 1 : 2 : 4) yields a product which is probably 2- or 4-amino-3-methyldiphenylamine sulphone, 3-methoxydiphenylamine (obtainable by methylating 3-hydroxydiphenylamine) yields 2 - methoxy - diphenylamine sulphone, and 3-chlorodiphenylamine yields 2-chlorodiphenylamine sulphone; (3) 4-aminodiphenylamine is dissolved in sulphuric acid monohydrate and treated with fuming sulphuric acid of 60 per cent SO3-content at 120--130 DEG  C., the product being worked up as in (2) to produce the potassium salt of 3-aminodiphenylamine sulphone-1 : 6 : 8-trisulphonic acid, which is treated by the method of (1), yielding a mixture of 3-hydroxy-and 3-amino-diphenylamine sulphone.  The Specification as open to inspection under Sect. 91 refers also to the use of N-methyl- and N-ethyl-diphenylamine as starting materials, the products being stated to be 3-methyl- and ethyl-diphenylamine sulphones.  This subject-matter does not appear in the Specification as accepted.
Patent GB-166500-A (GB)
Title: Improvements relating to alternating current electricity meters and the like
IPC: G01R11/36
Filed: 1920-01-17
Abstract: 166,500. Ferranti, S. Z. de, Wall, G., and Ferranti, Ltd. Jan. 17, 1920. Induction motor meters.-The inductive load operation of an alternating-current electricity meter is adjusted by a short-circuited conducting member adjacent to an operative pole-piece and displaceable longitudinally in relation thereto, scale markings being associated with the said member. A copper stamping w on a cranked slide piece x surrounds the shunt magnet core e and is adjusted by an eccentric operated by a screw 2. A graduated dial plate 5 on the slide x indicates successive percentage adjustments in conjunction with a pointer 6 fixed to the screw. Alternatively, the stamping is carried by a spring lever pivoted to the casing and provided with a knob and peg to engage a series of holes in the casing.
Patent GB-825183-A (GB)
Title: New prosthesis consisting of textile materials
IPC: A61F2/06
Filed: 1957-05-20
Abstract: An anastomosis appliance comprises a tube made of woven synthetic textile the warp or weft of which consists of continuous synthetic threads in which the component filaments are formed with undulations and/or changes in direction such that their true length is greater than that of the yarn produced.  The tube is seamless, the weft threads forming a spiral.  The threads are made of polyacrylonitrile, acrylonitrile, polyamides, polyesters, polyolefines, or their derivatives.  The tube may have a Y-shape for use in the iliac artery, the diameter of the base being twice that of each arm. During sterilization the tube shrinks.
Patent GB-159574-A (GB)
Abstract: 159,574. Automatic Telephone Manufacturing Co., Ltd., (Automatic Electric Co.). Nov. 26, 1919. Addition to 154,698. Automatic exchange systems. -Switches of the kind described in the parent Specification, in which the progressive movement of the wipers is caused by the alternate energization of two electromagnets acting on a single rotary armature, are adapted for use as non-numerical selectors. In the arrangement shown in Fig. 1, when a relay 2 is energized by a call on the line A, the magnets 5, 6 are energized alternately over the test wiper 7 and over an auxiliary wiper 13, which is set half a step back and moves over permanently grounded contacts. The successive energization of both magnets is necessary to move the wipers from one set of terminals to the next. When an idle trunk is found, a relay 4, being no longer short-circuited by the test wiper, becomes energized in series with magnet 5, which is now prevented from energizing by the high resistance of relav 4, and switches the calling line to the selected trunk. In the modification shown in Fig. 3, the auxiliary wiper is dispensed with, the gearing of the switch is altered so that each energization of magnet 5 or 6 moves the wipers a whole step to the next set of terminals, and magnet 5 is provided with a contact 30 which connects the magnets 5, 6 alternately to the test-wiper. On the release of the connection the de-energization of relay 4 momentarily closes a contact 34, 35 to send an impulse through magnet 6.
Patent GB-200667-A (GB)
Title: Improvements relating to the packing and transit of fragile articles
IPC: B65D81/03
Filed: 1922-06-10
Abstract: 200,667. Brown, G. W. June 10, 1922. Wrappers.-A wrapper for protecting a fragile article consists of a rubber or other resilient envelope 1 shaped to receive the article and provided with shock-absorbing projections 2, 3 on its outer and/or inner surfaces, and provided with a hinge 4 on one side and an opening in a strengthened portion on the other side. The wrapper may be double-walled, as shown in Fig. 5, leaving an air-space 12. The hinge 4 may be strengthened by a strip 5 of canvas &c., or a recess 7 may be formed and filled with a composition 8 harder than the material of the wrapper, to cause the wrapper to be self-closing. Ventilating holes 9 may be formed in the envelope 1.
Patent GB-593394-A (GB)
Title: Improvements relating to mirrors
IPC: B05D7/24
Filed: 1945-06-25
Abstract: The reflection coating of a glass mirror is protected by two coatings of paint, the inner one consisting of a finely divided pigment suspended in a liquid and the outer coating including a finely divided metal suspended in a liquid.  The inner coating may be a mixture of three parts by volume of grey paint to one part by volume of thinners, while the outer coating may be a mixture of four parts by volume of aluminium paint to one part by volume of said grey paint.  Each coating may be applied by spraying, the inner coating being dried before the outer coating is applied thereon.
Patent GB-179842-A (GB)
Title: Improvements in speed regulators for internal-combustion engines
IPC: G05D13/00
Filed: 1921-06-11
Abstract: 179,842. Christensen, A. M. C. June 11, 1921. Variable-speed and reversing gearing.-A set of variable gears for a speed-regulator is comprised by a wheel b engaging with an idle wheel f, which engages with one of the wheels h, j, or k to transmit variable motion between the shafts a and g. The wheels b, dare slidably mounted on the shaft a by the fork d. Definite engagement of the gears is ensured by the lever t engaging with one of the lugs q, r, or s.
Patent GB-594114-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H5/18
Filed: 1945-06-26
Abstract: 594,114. Snap-action switches. HOLLIS, G. June 26, 1945, No. 16321. [Class 38(v)] A snap - action switch is provided with a fixed contact 7 which may be bifurcated as shown in Fig. 5 and a movable contact t comprising a rigid plate 10 connected to spring members 8 connected at their other ends to a rigid plate 9 fixed to the switch base by a terminal passing through an opening 11. The inner ends of the plates 9, 10 engage in grooves 15, 16 in the actuating member 3, the edge of the plate 9 acting as a pivot about which the member 3 turns. Movement of the member 3 raises or lowers' the inner edge of the plate 10 which strains and elongates the springs 8 thus causing a wiping action between the moving and fixed contacts 10, 7 during both the opening and closing movements. When the plate 10 passes the deadcentre position it snaps over from one extreme position to the other. In a modification the plates 9, 10 form the two movable contacts and are actuated by a pushpull button the lower end of which is notched to engage the inner ends of the plates.
Patent GB-221885-A (GB)
Title: Improvements in nut-locking devices
IPC: F16B39/04
Filed: 1923-06-23
Abstract: 221,885. Berlin, L. J. June 23, 1923. Locking nuts. - Relates to nut-locking devices of the type in which two locking-plates are employed, one of which is secured to the nut and the other to the bolt or work, and in w h i c h inter - engaging means are provided to prevent relative rotation of the plates. According to the invention a nut b is locked to a bolt a by a nut c which is secured to the bolt by means of a split-pin m and two locking-plates d, g, which are provided with projections f, i to engage the nuts. The plates d, g are locked together by a split pin n, passing through a pair of registering holes, or by bending a projection on one plate to engage a recess in the other. The holes or projections and recesses are arranged on the vernier principle so that there is always a locking pair available. Specifications 7548/02 and 140,879 are. referred to.
Patent GB-1333905-A (GB)
Title: Method for o-acylating 7-acylaminocephalosporadesic acids and o-acyl-7-acylaminocephalosporadesic acids
IPC: C07D/
Filed: 1972-04-10
Abstract: 1333905 O-Acylating 3-hydroxymethylcephalosporins; D-mandelic acid derivatives SMITH KLINE & FRENCH LABORATORIES 10 April 1972 [7 May 1971] 16342/72 Headings C2A and C2C  3 - Acyloxymethyl - 7 - acylaminocephalosporanic acids are prepared by acylating the 3-hydroxymethyl group of a 3-deacetyl-7-acylaminocephalosporanic acid by reaction with an azolide, any hydroxy, amino or thiol groups in the N-acyl group of the azolide being suitably protected during the acylation and the protecting groups being removed thereafter. The azolide is defined as an N-acyl heterocyclic compound wherein the heterocycle is a quasiaromatic 5-membered ring containing at least two nitrogen atoms, e.g. l-acyl-1,2,4-triazole or 1-acyl-1,2,3-triazole. It is prepared in situ by reacting a carboxylic acid with a diazolide of carbonic acid (N,N<SP>1</SP>-carbonyldiimidazole) in a reaction-inert solvent according to the reaction: The 3-deacetylcephalosporin, preferably as an alkali metal salt, is then added to the reaction mixture, when the following reaction takes place. In the formulµ above, is an acyl group found in the 7-acylamino group of a known antibacterial cephalosporin, is the same as except that any hydroxy, amino and carboxy groups have protecting groups, is an acyl group found in the 3-acyloxymethyl group of a known antibacterial cephalosporin except that an easily eliminated #-substituent may not be present, is the same as except that any hydroxy, amino and thiol groups have protecting groups, and -N# is a quasiaromatic five-membered ring. The process is preferably carried out at neutral to mildly basic pH in a reaction-inert solvent (e.g. benzene, tetrahydrofuran, chloroform or dimethyl-formamide) at 0-50‹ C. o - (2,2,2 - Trichloroethoxycarbonyl)- D - mandelic acid is prepared by reacting D-mandelic acid with 2,2,2-trichloroethyl chloroformate in the presence of N,N-dimethylaniline, and is subsequently converted to the acid chloride with thionyl chloride.
Patent GB-365472-A (GB)
Title: Improvements in and relating to rims
IPC: B60B23/04
Filed: 1931-06-04
Abstract: 365,472. Vehicle wheels. CONRAD, C. V., 350, East 59th Street, North Portland, Oregon, U.S.A. June 4, 1931, No. 16344. [Class 144 (ii).] The detachable rim 12 is fitted with lugs 16 having inclined faces 17 to co-operate with wedge-shaped lugs 14 on one of the walls of the fixed channel-rim 10. The rim 12 is assembled by a bayonet-joint movement, and locked by means of a pivoted dog 18 engaging the inclined face 17 of one of the lugs 16. In the construction shown, the dog 18 is actuated by means of worm gearing 20, 22, 24.
Patent GB-835859-A (GB)
Title: Method of processing phosphorus sludge obtained in the production of phosphorus
IPC: C01B25/02
Filed: 1958-05-22
Abstract: Phosphorus sludge obtained in the production of phosphorus, is subjected to steam distillation at superatmospheric pressure in an inert atmosphere, pure yellow phosphorus being separated from the phosphorus-steam condensate produced.  Phosphorus-sludge (as defined) is introduced into the distillation vessel of a pressure distillation apparatus and is heated for example by the direct introduction of superheated steam to above 100 DEG  C., preferably to between 140-180 DEG  C. say 160 DEG  C., in an inert atmosphere, e.g. N2.  The pressure of the distillation may be between 2-20 atmospheres absolute, preferably between 4-10 atmospheres absolute, say 7 atmospheres absolute, and may be maintained either by adjustment of a throttle valve positioned between the vessel and the condensing section of the distillation apparatus or by regulation of the velocity of steam entering the vessel whilst maintaining the throttle at a fixed position.  The condensing section which is at a temperature above about 45 DEG  C. may be under the same pressure as the distillation vessel but is preferably at atmospheric pressure to facilitate removal of the condensate.  The Specification also refers to passing an inert gas, e.g. N2 through the condensing section to prevent ignition of condensed phosphorus.
Patent GB-576707-A (GB)
Title: Improvements in or relating to filtering apparatus
IPC: B01D29/01
Filed: 1944-08-31
Abstract: 576,707. Filters. CURRAN BROS., Ltd., and CURRAN, W. E. Aug. 31,1944, No. 16540. [Class 46] A filter member suitable for use in spray pickling plants comprises a foraminous sheet the marginal edges of which are embedded in a frame consisting of a metal softer than that of the sheet. In the construction shown in Fig. 1, a sheet 1 of stainless steel mesh is attached to a frame consisting of lead strips 2, 3, 4, folded over the edges of the sheet and clamped in a press so that the mesh becomes partly embedded in the strips. The side members 2 are prolonged beyond the sheet and an end member 5 is clamped over a strip 6, portions 6a of which are gripped by the members 2. The adjacent edges of the frame members are welded together. The filter member is secured to a filter 8, Fig. 3, by bolts 12 which press the lid 13 on to the lead framing. Liquid to be filtered flows through passage 9, up through the filter member, down through space 10, and out through passage 11.
Patent GB-845020-A (GB)
Title: Improvements in or relating to wire-unwinding devices suited more particularly for use with coil-winding machines
IPC: B65H59/36
Filed: 1957-05-24
Abstract: 845,020. Unwinding. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 24, 1957 [May 29, 1956], No. 16550/57. Class 83 (4). A wire-unwinding device, more particularly for use in a coil-winding machine, comprising a pivotal arm carrying at least one wire-unwinding wheel, which arm is subject to the action of an adjustable spring is characterized in that said spring is not a coil spring and is subject only to bending stress during the operation of the device, means being provided by which the point of application of the force exerted by this spring on the arm may be displaced by varying the effective length of the spring. Wire 2 from a reel 1 in a housing 3 passes, through a felt block 11, over a curved felt guide 11a, for some turns around a guide wheel 10, which may be combined with a braking device, and then over an unwinding wheel 9, on an arm 8 pivoted at 7, to coil winding means. The arm 8 is urged upwardly to tension the wire 2 by adjustable spring means of the single or multiple blade or length of wire type. The spring may have a rigidity which varies along its length either continuously or in steps. In one embodiment, Fig. 1, a spring blade 30 is secured at one end to a clamp 31 adjustable along the arm 8, the free end 30b of the blade being allowed to slide along a guide 32 in a fixed part of the apparatus. In another embodiment, Fig. 2, a spring 40 is secured at one end 40a to the arm 8, at its other end 40b to a pivoted shackle 41 and is clamped to the arm 8 by a clamp 43 adjustable therealong to vary the active length of the spring between the clamp 43 and the end 40b. In a further embodiment, Fig. 3, a spring 50 secured at 50a to the arm 8 and clamped thereto by an adjustable clamp 51 is bent back and secured at its other end to a part 52 of the apparatus. In another embodiment, Figs. 4, 4a, a spring 20 which diverges in width from an end 22a to an end 22b is secured at its narrower end to the arm 8, is adjustably clamped thereto intermediate its ends, and is connected at its end 22b to a shackel 23 connected to another spring blade 24 which is secured at its other end 24b to a fixed part of the apparatus. The spring 20 may comprise two superimposed blades.
Patent GB-758140-A (GB)
Title: Improvements in or relating to non-return valves
IPC: F02G1/053
Filed: 1954-06-04
Abstract: 758,140. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS GLOEILAMPENFABRIEKEN. June 4, 1954 [June 8, 1953], No. 16611/54. Class 7(1) [Also in Groups XIII and XXIX] A hot gas engine comprising a piston 17 and a.displacer 16 both driven from a common crankshaft 19 has a channel 32 extending from the crankcase 31 to the working space 25 for returning working medium to the space 25 in the event of leakage into the crankcase. The channel 32 has check valves 33, 34 of which the valve 33 (see Group XXIX) constitutes also an oil separator, the separated oil returning by a channel 35 to the crankcase. When pressure in the section 36 of the channel is lower than that in the crankcase working fluid passes from the crankcase, and when the pressure in the working space 25 is lower that that in the section 36 the fluid passes from the latter to the working space 25. '
Patent GB-770741-A (GB)
Title: Improvements in connecting means for caps used in mining
IPC: E21D17/086
Filed: 1955-06-10
Abstract: 770,741. Mine roof supports. GUTEHOFFNUNGSHUTTE STERKADE AKT.- GES. June 10, 1955 [June 25, 1954], No. 16721/55. Class 20(2) In a pivoted joint between caps supporting mine roofs, a cap 2 having a pivot pin 4 on which another cap 1 is mounted from one side of the joint is locked by a .wedge 7 which engages one of two grooves on each side of a rib 5 on the pivot pin, the two grooves being provided in order that a cap may be used when inverted. The wedge 7 is mounted in a ball socket 8. A bolt 10 is mounted in a guide 11 in the free end of the pin 4 'and is forced outwards by the wedge 7 so that it prevents accidental release of the pin 4.
Patent GB-1526493-A (GB)
Title: Rechargeable lithium-aluminum anode
IPC: H01M4/40
Filed: 1976-04-26
Abstract: 1526493 Li-Al alloy EXXON RESEARCH & ENG CO 26 April 1976 [1 July 1975]  16787/76 Heading C7A [Also in Division H1] An anode of an electro-chemical cell consists of an alloy of 63-92 wt. per cent Li, balance Al.