baber/WOPTO huggingface dataset:
Patent GB-238975-A (GB)
Title: Improvements in or relating to boilers of the return-tube type
IPC: F22B9/12
Filed: 1924-06-06
Abstract: 238,975. Clayton, L. June 6, 1924. Vertical boilers. - A steam generator of the return-tube type comprises a cylindrical casing 1 having a combustion chamber 2 at each end, and a depending cylindrical casing 3 containing a firebox 4. A rectangular uptake 5 divides the boiler into two parts, the upper portions being connected by steam tube stays 6. Leading smoke tubes 7 connect the uptake 5 with the combustion chambers 2, and return tubes 8 connect the combustion chambers 2 with the uptake 5 above the waterway 9. The firebox 4 is corrugated and of the same diameter as the casing 1. A tubular feedwater heater 13 is mounted in the upper part of the uptake 5, and the water is delivered into the annular space surrounding the firebox 3. Steam is drawn off through pines 18 and superheaters 19 to the engine. The exhaust steam passes into a chamber 21 having nozzles 22 to increase the draught.
Patent GB-1106392-A (GB)
Title: Process for the preparation of isocyanate-carbonic acid esters
Inventor: KRIMM HEINRICH
IPC: C07C263/16
Filed: 1966-03-29
Abstract: Isocyanates containing a carbonate ester group are prepared by treating chloroformic acid ester isocyanates at a low temperature with aqueous solutions of alkali-metal or alkaline-earth metal hydroxides in the presence of inert solvents and catalytic proportions of tertiary amines.  Suitable solvents and tertiary amines are specified and examples are given of the manufacture of products of the following formulae <FORM:1106392/C2/1> <FORM:1106392/C2/2> <FORM:1106392/C2/3> <FORM:1106392/C2/4> <FORM:1106392/C2/5> <FORM:1106392/C2/6> A number of other products are specified also.  Chloroformic acid ester isocyanates used as starting materials may be of the formula OCN-R-O-C(O)-Cl, in which R denotes a divalent aliphatic, aromatic or araliphatic radical, and may be prepared by reacting primary hydroxyamines with excess phosgene in the presence of tertiary amines and, optionally, of solvents.  A number of primary hydroxyamines which can be so reacted are specified.  Reference has been directed by the Comptroller to Specification 990,875.
Patent GB-884829-A (GB)
Title: Improvements in or relating to high frequency heating apparatus
Inventor: SPASH DAVID ISAAC
IPC: H05B6/04
Filed: 1958-05-01
Abstract: 884,829. Electric high frequency heating apparatus. RADYNE Ltd. April 28, 1959 [May 1, 1958], No. 13936/58. Class 39(3) To prevent accumulation of dirt within a h.f. generator unit, the unit is sealed to prevent or reduce the ingress of external air and a cooling unit is provided which comprises a heat-exchanger having a passage for the flow of a coolant fluid and through which air within the generator unit is circulated. The sealing may be effected by expanded foam p.v.c. and the cooling unit may be mounted on top of the generator unit or inside it. The temperature of the air is controlled by switching on and off a compressor forming part of the cooling unit. The cooling pipes of the heat-exchanger have a refrigerant fluid passing through them. The minimum temperature is selected so that the humidity in the generator unit is maintained below a fixed level, or a separate humidity controller may be used.
Patent GB-602601-A (GB)
Title: Improvements in or relating to regulating valves
IPC: G05D16/06
Filed: 1945-06-09
Abstract: 602,601. Pressure - regulating valves. GLENNY, A. P., and SPERRY GYROSCOPE CO., Ltd. June 4, 1945, No. 13938. [Class 135] A fluid pressure regulator has throttling means rigidly connected to means responsive to the pressure to be regulated and loaded by resilient means, e.g. a spring, one end of which engages an adjustable stop and the other end of which is connected by a linkage device to the throttling means such that any deflection of the resilient means is less than the corresponding deflection of the throttling means, whereby variations in the regulated pressure with different degrees of throttling are minimized. The regulator, which, as shown, is adapted for use in a negative pressure system, has a cylindrical throttling member 6 coacting with a fixed plug' 7 and controlling a duct 4 connected at 4b to the system and at 4a to a suction pump. A spring 18, engaging at one end with an adjustable abutment 20, bears at its other end against a slidable member 16 coacting with a push rod 19 engaging an arm 13c of a bell-crank lever 13 pivoted on a knife-edge bearing 13b. The other arm 13a of the bell-crank is connected to the throttling means by a cable 12 whereby the throttling means is urged upwardly by the spring 18. A diaphragm 5, fixed to the throttling means, is subjected, through a passage 11, to the pressure in the system, the action of the diaphragm, therefore, opposing that of the spring 18. Since the arm 13c of the bell-crank is made shorter than the arm 13a, a deflection of the spring 18 is less than the corresponding deflection of the throttling means.
Patent GB-1387221-A (GB)
Title: Coated glass
IPC: C03C17/25
Filed: 1973-03-22
Abstract: 1387221 Coated glass ALLEGHENY LUDLUM INDUSTRIES INC 22 March 1973 [23 March 1972] 13984/73 Addition to 1298410 Heading B2E A method of providing a transparent, water insoluble layer on glass comprises coating the glass with a solution containing Mg<SP>++</SP>, NH 4 <SP>+</SP>, chromate and phosphate ions, and curing the layer (e.g. by heating to at least 400C) to render it water insoluble. The layer then comprises Mg<SP>++</SP> cations and anionic polymeric chains containing Cr, O and P atoms. In solution, the phosphate ion spacers may be H 3 PO 4 , H 2 PO 4 -, HPO 4 = or PO 4 # or polymeric oxyacid ionions and the chromate may be CrO 4 =, Cr 2 O 7 = &c. The Mg<SP>++</SP> ions may be supplied as oxide, hydroxide, carbonate, bicarbonate, phosphate or chromate; ammonium ions as ammonia (solvated), or hydroxide, carbonate or bicarbonate; phosphate ions as o-phosphoric acid, Mg 3 (PO 4 ) 2 , (NH 4 ) 3  (PO 4 ) 2  or magnesium ammonium phosphate; and chromate as CrO 3  or chromate or dichromate of magnesium or ammonium. The solution is preferably aqueous and may contain wetting agents or pigments or dyes to render the transparent protective layer coloured.
Patent GB-345146-A (GB)
Title: Manufacture of hydrocarbons containing halogenmethyl
IPC: C07C17/32
Filed: 1930-05-07
Abstract: Halogenmethyl derivatives.-Polynuclear hydrocarbons are treated with at least two molecular proportions of formaldehyde in aqueous solution saturated with a hydrogen halide, more than one halogenmethyl group being thereby introduced into the molecule. The products are intermediates for the manufacture of tanning agents, dyestuffs, or auxiliary products to be used in dyeing processes.  In examples: (1) naphthalene is suspended in an aqueous solution of formaldehyde to which concentrated hydrochloric acid has been added, and the mixture is heated while passing a current of gaseous hydrochloric acid therethrough; a di(o -chlormethyl)-naphthalene is obtained; (2) anthracene, acenaphthene, phenanthrene and tetrahydronaphthalene are similarly treated; the latter yields a Bz-di(o -chlormethyl) derivative.
Patent GB-1123127-A (GB)
Title: Improvements in or relating to vehicle non-slip and non-skid arrangements
IPC: B60T8/17
Filed: 1967-03-28
Abstract: 1,123,127. Battery charging systems. KNORR-BREMSE G.m.b.H. 28 March, 1967 [28 March, 1966], No. 14149 Heading H2H. Electronic non-shift non-skid apparatus used in rail vehicles when braking comprises a battery which is arranged to be charged by a tacho-generator forming part of the non-slip, non-skid apparatus. A tacho-generator 1 driven from the driving wheels of the train controls the non-slip, non-skid apparatus 4 by way of conductors 2, 3; the power supply to the apparatus 4 consisting of a battery 7. The tacho-generator 1 is used to charge the battery 7 by way of a diode bridge 10, a zener diode 11 shunting the battery 7 to prevent over-charging thereof. When the generator 1 is of the D.C. type the bridge 10 enables the battery 7 to be charged irrespective of the direction of rotation of the generator. In a second embodiment the generator is of the A.C. type and a transformer is placed between the generator and the diode bridge. The battery supply to the apparatus 4 includes a switch controlled by the output from the transformer and the conductors from the generator to the apparatus 4 and the transformer have diodes connected therein so that the apparatus 4 and the transformer are energized by alternate half-waves of the generator output voltage. When the output from the transformer disappears the switch in the battery supply to the apparatus 4 which is controlled therefrom opens with a time lag.
Patent GB-704068-A (GB)
Title: Improvements in and relating to lighting fittings
IPC: F21V21/02
Filed: 1950-06-07
Abstract: 704,068. Lighting fittings. EDISON SWAN ELECTRIC CO., Ltd., and KEEN, E. R. June 6,1951 [June 7,1950], No. 14224/50. Classes 75 (3) and 75 (4) A lighting fitting has a lamp-carrying channel member 8 dismountably pivoted to a support member 1, arranged for mounting on a ceiling or like surface 2, by means of a hinge member 4 slidable in the.support member 1 and providing a single pivot P2 only for the channel member 8 when the latter is in an intermediate open position and a double pivot P1 and P2, when the channel member is in its fully open position, to allow the channel member to drop into a dependent position affording access to ancillary equipment thereon. As shown the hinge member 4 comprises a U-shaped stirrup the base of which is pivotally-secured to the channel member 8. and the ends P1 of which are outwardly bent and slidably received, together with the limbs of the stirrup, in a guide 3 secured to the support member. In the closed or intermediate open position the stirrup limbs and ends P1 are wholly within the guide 3 and the channel member 8 can pivot only about the stirrup base P2, to an extent limited by abutment of the edge 81 of the channel member with the support 1. When the stirrup limbs are withdrawn from the guide 3, the stirrup can pivot about its ends PI, still captive in the guide 3, to drop the channel member 8 and thereby allow further pivoting thereof about P2 until its edge 81 abuts the stirrup limbs. The channel member may be dismounted from the support 1 by manual squeezing of the stirrup limbs to disengage the ends PI from the guide 3.
Patent GB-290634-A (GB)
Title: Improvements in or relating to devices for lubricating the flanges of the wheels of rail vehicles
IPC: B61K3/02
Filed: 1928-05-15
Abstract: 290,634. Buclon, A. May 18, 1927, [Convention date]. Capillary-action lubricating.-Oil is supplied to the wheel flange of a railway-vehicle by superposed felt or like discs 37 secured by a nut 27 around the lower end of an oil reservoir 25 which is mounted by means of ball bearings 11, 19 on a spindle 14 suspended from the cross pin 32 of a forked bracket 33. The discs 37 contact with the flange so that, during movement of the vehicle, the reservoir 25 is rotated, oil being forced centrifugally from the reservoir into the discs through openings 28. Oil is supplied to the reservoir through an axial passage 18 in the spindle 14, which is normally closed by a plug 5. When the vehicle becomes inclined, on rounding a curve, the lubricating device for the outer wheel bears, by its own weight, harder against the flange, while the device for the inner wheel may lose contact therewith. The bracket 33 is adjustable by means of its screwed stem 34 in a member 35 which is capable of angular adjustment with respect to a member 36, the members 35, 36 having interengaging serrations.
Patent GB-320600-A (GB)
Title: Method of casting ingots
IPC: B22D27/04
Filed: 1928-05-15
Abstract: 320,600. Washburn, E. C. May 15, 1928. Moulds.-A cast ingot is cooled from the bottom upwards by directing cool air against the lower portion of the mould and conducting the hot gases from the ingot to the upper portion. The ingot mould 10 is surrounded by a lower casing 14 provided with air inlets 14<b> and if desired with inlets from a conduit 13 into which cool air is forced. The upper end of the mould is enclosed in a casing 15 spaced from the mould by lugs 15<a>, 15<b>. In a, modification a single casing 24, Fig. 6 with inlet and outlet holes 24<b> and a cover 25 may be used. The upper part of this casing may be thickened to constrict the passage for escape of hot gases if desired. In another modification the ingot is poured before being introduced, by means of a truck 16, Fig. 4, into a casing which takes the form of a tunnel 19 the ends of which serve for the passage of cool air Hot air &c. may be drawn from the upper part 19<a> by a flue 19<d> and used in a furnace or to heat boilers. The inner surface of the moulds may be smoothed when they have become roughened in use.
Patent GB-1340311-A (GB)
Title: Electric or electronic timepiece
IPC: G04B27/00
Filed: 1972-03-27
Abstract: 1340311 Friction clutches CITIZEN WATCH CO Ltd 27 March 1972 [27 March 1971] 14282/72 Heading F2C [Also in Division G3] A manually operable clutch is provided between a seconds hand arbor 1 of an electric timepiece and its driving pinion 5 in order to permit seconds hand 26 to be disengaged from its drive and possibly locked during hand setting, without interrupting the motion of a mechanical oscillator. In the form shown, the clutch comprises a spring 2 fixed to the arbor 1 and normally engaged with the pinion 5 which is freely rotatable on the arbor. As an operating member 17 is moved to the right by a setting stem, not shown, it depresses portion 16 of a spring 15 and thus projections 2a, 2a<SP>1</SP> of the spring 2, see Fig. 3. This raises projections 2b, 2b<SP>1</SP> by flexure of the spring which becomes disengaged from the pinion 5. An alternative form of clutch is described in which the driving pinion (105, Fig. 3, not shown) is attached to a cup-shaped member (130) loosely carried by the seconds hand arbor, (101). The cup (130) has a rubber or resilient plastics ring (131) which is normally engaged by a spring (102) fixed to the arbor (101). Actuation of the stem causes a lever (117) to engage an inclined surface on a member (118) to displace a clutch ring (119) axially on the arbor (101), thereby disengaging the spring (102) from the cup (130).
Patent GB-1093141-A (GB)
Title: Improvements in or relating to synthetic cross-linked polymers
Inventor: PHILLIPS LESLIE NATHAN
IPC: C08K5/02
Filed: 1963-04-10
Abstract: Mixtures of two or more polymers each containing aromatic nuclei (either pendant to or in the polymer chain) are cross-linked by reaction with an aralkyl halide that has two halogenomethyl groups (excluding fluoromethyl groups), each attached to an aryl group, to eliminate hydrogen halide whereby the organic part of the aralkyl halide is cross-linked directly between aromatic nuclei in the polymers. Polymers may be obtained in two stages by first separately reacting two or more compounds, each containing at least one aromatic nucleus with the aralkyl halide to obtain relatively low molecular weight soluble fusible polymers, and then mixing the polymers and further reacting them with the aralkyl halide to obtain highly cross-linked polymers. In examples, resins obtained by reacting p-dichloroxylylene with octaphenylcyclotetrasiloxane and with triphenyl phosphate, are mixed and cross-linked with residual p-dichloroxylylene; and resins obtained by reacting p-dichloroxylylene with diphenyl oxide and with N-triphenyl borazole, are mixed and cross-linked with residual p-dichloroxylylene.ALSO:Fibrous materials are impregnated with mixtures of two or more polymers each containing aromatic nuclei, and the polymers are cross-linked by reaction with aralkyl halides having two halogenomethyl groups (excluding fluoromethyl groups) attached to aryl groups.  In Examples asbestos felts are impregnated with a solution of a mixture of resins obtained by reacting p-dichloroxylylene with octaphenylcyclotetrasiloxane and with triphenyl phosphate, and with a solution of a mixture of resins obtained by reacting p-dichloroxylylene with diphenyl oxide and with N-triphenyl borazole; after drying the felts they are heated to cure the resins, cross-linking occurring by reaction with residual p-dichloroxylylene.
Patent GB-497791-A (GB)
Title: Improvements relating to furniture
IPC: A47C3/04
Filed: 1937-05-22
Abstract: 497,791. Nesting-seats. SINGER, F. May 22,1937, No. 14329. [Class 52 (ii)] A nesting-seat or other article of furniture of the cantilever type, adapted to be closely nested with a similar article by being piled thereon, includes a pair of supporting portions which support the seat on opposite sides, each portion comprising a pair of angularly related members of which one at least is inclined to the ground at an acute angle, and of which at least one does not intersect, and has an outer lateral bounding surface which is not coincident with, the vertical plane which passes through the lateral edge of the seat. In the form shown in Fig. 2, a pair of legs 2, 3, of inverted-V form are secured to the front of the seat frame 1 on each side, the legs lying outside the vertical planes through the edges of the seat. In the form shown in Fig 4, the leg 2 is integral with the seat frame, while the leg 3 lies outside the vertical plane through the edge of the seat. When nested, the seat of the second chair lies above the seat of the first, while the leg 2 of the second chair lies below that of the first. Figs. 5 and 7 show further forms. Specification 400,876 is referred to. Reference has been directed by the Comptroller to Specification 293,305, [Class 52 (ii)].
Patent GB-796118-A (GB)
Title: Improvements in or relating to metal plates for facing walls, partitions and other backings
Inventor: MCARTHUR THOMAS JOHN
IPC: C23D5/00
Filed: 1956-05-09
Abstract: 796,118. Enamelling. STEWART & GRAY, Ltd. Sept. 6, 1956 [May 9, 1956], No. 14404/56. Class 56. Vitreous enamelled plates, e.g., for wall facings or table tops, have a smooth vitreous enamel coating on their front face and an absorbent vitreous coating on their back face for penetration by the adhesive used for bonding the plate to the backing. The absorbent may be formed by adding a powdered refractory (e.g., sintered clay) or an effervescing agent (e.g., a mineral carbonate) to the enamel.
Patent GB-252898-A (GB)
Title: Leaf turner
IPC: B42D9/08
Filed: 1925-06-04
Abstract: 252,898. Parsons, G. H. June 4, 1925. Leaf holders and turners.-A book is bound above the top line of and parallel to the lines o the reading matter, and each leaf carries a ring or holed tab which are in successively different positions and are hung on pegs adapted to be withdrawn one at a time to allow a leaf to fall The book rests on the angularly adjusted convex plate B shown from the near in Fig. 1, and the leaves when released turn on to the inclined flat plate C hinged thereto, the binding of the book being held in the angle between the plates. The pegs A on which the rings are hung are with. drawn each in turn by the engagement with a ring 0 thereon of a single cog on a cog wheel F one for each peg, and mounted on the same axis E with a ratchet wheel K. The wire G, preferably pedal-operated is attached to the crank J carrying a ratchet l engaging the wheel K so as to turn it, if there are four pegs, through 90‹, and so operate a single peg, both peg and crank being spring returned. Alternatively, the wheel K is turned by the ratchet M shown in Fig. 3.
Patent GB-226443-A (GB)
Title: Improvements in and relating to dry pipe valves for firesprinkler systems
IPC: A62C35/64
Filed: 1924-06-16
Abstract: 226,443. Clark, E. E. June 16, 1924. Sprinklers, automatic.-In a dry-pipe valve of the type in which the air and water valves upon opening turn into a position outside the waterway under the control of link mechanism, the valves are locked in the open position by cooperating locking-members on the link mechanism and valve structure respectively, adapted to engage automatically when the valves open. The air valve 11 is connected to the water valve 10 by a headed stud 12, and is pivoted at 21 to extensions 20 of a U-shaped link 18 pivoted to the casing at 19, the lower part of the valve 11 being pivoted at 24 to a substantially parallel link 25. The valves are looked in the open position, shown in dotted lines, by the engagement of the end 41 of a pawl 35 with a shoulder 40 of a projection 39 on the link 25. In order to facilitate cleaning or removal of the valve structure, the link shafts 21, 24 are headed at one end, and provided at the other end with a pivotally and slidably mounted locking-key, which when turned into alignment with the shaft permits its removal.
Patent GB-639312-A (GB)
Title: Improvements relating to shot firing in mines and quarries
IPC: E21B10/44
Filed: 1948-05-28
Abstract: 639,312. Blasting - devices. VICTOR PRODUCTS (WALLSEND), Ltd., and GILLESPIE, G. May 28, 1948, No. 14522 [Class 9 (i)] [Also in Group XXII] A blasting cartridge a is placed in a bore-hole and seats against a shoulder formed by an extension g of reduced diameter, the extension forming an air cushion for the cartridge. A clay tamping b is then pressed into the bore-hole around the firing connection c. The bore-hole extension may be formed by using a drill with a smaller bit after the main bore-hole has been drilled or by using the tool shown in Figs. 5 and 6. This tool has a main drill rod m with a single-winged bit n fitted with a shorter and smaller drill rod o with a single-winged bit p. Double-winged bits may be used. The smaller rod may have a threaded end q screwed into the main rod. Specification 518,747, [Group XXII], is referred to.
Patent GB-810191-A (GB)
Title: Improvements in and relating to hydraulic accumulators
Inventor: MOULTON ALEXANDER ERIC
IPC: F15B1/08
Filed: 1954-05-18
Abstract: 810,191. Hydraulic accumulators. MOULTON DEVELOPMENTS Ltd. July 29, 1955 [May 18, 1954], No. 14558/54. Class 69 (2). An hydraulic accumulator is loaded by a " spring " formed by a body 1 of rubber or rubber-like material bonded to a metal shell 4 which is inserted in a housing 6 to form an hydraulic chamber 10. A surface 2 of the body is initially convex so that when an end closure 8 is applied to the housing the rubber is given an initial compression. An end cap 12 limits the deformation of the rubber under the influence of pressure in the chamber 10. A diaphragm 9 separates the rubber body from the hydraulic fluid. In a modification two rubber springs are provided in a housing and the hydraulic chamber is formed between them.
Patent GB-883594-A (GB)
Title: Improvements in or relating to semi-conductor trigger circuits
IPC: H03K3/35
Filed: 1958-05-07
Abstract: 883,594. Double-base diodes. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 7, 1958 [May 10, 1957], No. 14617/58. Class 37. [Also in Group XL (c)] A semi-conductor device comprises a block 1 of semi-conductive material of one conductivity type having ohmic contacts 2, 3 at opposite ends thereof, at least one rectifying contact 41-45 arranged along one side of the block between the contacts 2 and 3 and a further rectifying contact 12 arranged along the other side of the block opposite the contacts 41-45. In operation, the contacts 41-45 are biased to operate as emitter electrodes and the contact 12 as a collector electrode. The device may be made by means of a diffused-base process in which a crystal of P-type germanium or silicon is exposed to the vapour of a material producing an N-type layer on the crystal. This layer is removed by etching except on one side surface area of the crystal, the remaining layer then being provided with ohmic contacts at its ends and individual rectifying emitter contacts, e.g. by alloying indium droplets thereto.