baber/WOPTO huggingface dataset:
Patent GB-816502-A (GB)
Title: Expanded resinous materials
Inventor: HOGG WILFRID HENRY
IPC: C08J9/00
Filed: 1955-03-17
Abstract: Expanded resinous material is produced by heating in a mould a vinyl chloride polymer or copolymer dispersed in a plasticiser and one or more polyamines, and removing the product from the mould while still hot.  Specified vinyl chloride copolymers are those with vinylidene chloride, vinyl acetate, butadiene, chloroprene and isoprene. Specified plasticisers are tricresyl phosphate and dioctyl phthalate and sebacate.  Specified polyamines are the alkylene polyamines.  A blowing agent, e.g. p,p1-oxy-bis-(benzene sulphonyl hydrazide) or azo-diiso-butyrodinitrile or a gas under pressure may be used to expand the material which may only partially fill the mould. Pigments, fillers, stabilizers, and similar materials may also be present.
Patent GB-635046-A (GB)
Title: Improvements in wheel castors and wheel brackets
IPC: B60B33/00
Filed: 1948-03-16
Abstract: 635,046. Castors. TOWNSEND, C. M., and TOWNSEND, C. R. March 16, 1948, No. 7816. [Class 52 (i)] In a castor with a " drop-out " wheel the ends of the axle are retained within the gapped ends 5 of the yoke by a swingably mounted manually operated catch device e. The castor pintle b may be mounted in a socket 15 having a single wire spring 18 which grips both the pintle and the wall of the cavity in the leg of the article in which the socket is inserted.
Patent GB-1301693-A (GB)
IPC: H01H85/055
Filed: 1970-02-18
Abstract: 1301693 Fusible cut-outs SIEMENS AG 18 Feb 1970 [21 Feb 1969] 7874/70 Heading H2G An electrical cut out device (Fig. 1) comprises a fusible member 1 in contact with a heat sink which may be formed by an electrical insulating rod 6 or member of beryllium oxide of high thermal conductivity. The fusible member 1 is situated between end connection points 2, 3 and constitutes a strip-form electrical conductor which narrow points 4 bridged by the thermalconductive meter 6 secured at projections 5. In a modification, the rod 6 may extend with at least one end in contact with one connection point 2, 3 the connection being cooled by contact with a fluid cooled bush-bar (not shown) if necessary. In a multi element device (Fig. 4) the thermal rod (14) is mounted in the centre of the elements 13 being held in thermal contact with the terminal connection 3 by spring 12, the device being surrounded by arc inhibiting sand. The rod 14 may be hollow and contain a fuse condition indicator and the elements 13 may be connected to the rod (not shown).
Patent GB-863260-A (GB)
Title: Improvements relating to flexible joints for ducting
Inventor: PLUMMER GILBERT ASHTON
IPC: F16L27/111
Filed: 1956-03-13
Abstract: 863,260. Pipe joints. JOHN THOMPSON WATER TUBE BOILERS Ltd. March 13, 1957 [March 13, 1956], No. 7881/56. Class 99(1). In a flexible joint for ducting, a laminated restraining member 8 extends axially through a seamless metal bellows 1, relative to which it is secured at both ends. The bellows 1 is formed with cylindrical rims 2, 3 at its ends which are welded to the inner peripheries of end rings 4, 5 which in turn are welded to opposed lengths of ducting 6, 7. The restraining member 8 is of sufficient width to be a loose fit in the corrugations of the bellows and is welded at its ends for a short distance to rings 4, 5. Metal plates 10 are welded as struts on each side of the plate 8 to the rings 4, 5. Cylindrical covers 11, 12 secured to the end rings 4, 5 respectively, are connected at 11c, 12c to a flexible metal annulus 13, as described in Specification 863,261, to provide a coupling which permits flexing of the joint but precludes torsional movement. The annulus may be provided with an additional cover 14 for protection during transport. In a modification, the restraining member is solid and of reduced cross-section in the middle part.
Patent GB-762693-A (GB)
Title: Data processing device
IPC: G06F7/50
Filed: 1954-03-18
Abstract: 762,693. Digital electric calculating-apparatus. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. March 18, 1954 [March 19, 1953], No. 7959/54. Class 106 (1). In a device for forming the twos complement (ones complement plus unity) of a signed series mode binary number, the sign digit coming first in time and the most significant digit last, the number passes through a device 1, Fig. 1, which leaves the sign digit unaltered but inverts the following digits if the sign digit is negative or leaves them unchanged if it is positive, and enters an input 7 of a two input adder 6, having an internal carry loop formed by a unit-delay 10 and a gate 11, where it has unity added to it if its sign is negative or zero if its sign is positive, the " one " which is added if the number is negative actually being the sign digit which is gated by the device 1 via a unit delay 5 to the second input 8 of the adder 6. The number leaves the adder via a terminal 13, passes through a minor cycle delay 14 and re-enters the adder to allow round carry into only the first digit position of the number, carry from the first to second position (i.e. from the sign digit position to the least significant denomination of the binary number) being prevented by a gate 11 which is closed every second digit period by a control pulse. The device has the property that the number - 0 is converted into + 0 by it. An accumulator, Fig. 2, differs sub. stantially from Fig. 1 only in that the adder 6 is replaced by a three input adder. The main storage circulation path for the accumulator is via a delay 14 and one input 23 of the adder. As shown the accumulator of Fig. 2 contains a device 24 in its output lead which could be a further twos complementor. Suitable diode gating circuits and pulse-shaping circuits are described.
Patent GB-721607-A (GB)
Title: Contact selector driven by a small synchronous motor
Inventor: SPAHN EMIL
IPC: H02J13/00
Filed: 1952-03-28
Abstract: 721,607. Actuation of switches. SAUTER AKT.-GES. FABRIK ELEKTRISCHER APPARATE, F. March 28, 1952, No. 8017/52. Class 38 (5). [Also in Group XXXVIII]. In a selector for the remote control of apparatus by sending two selectively-spaced impulses over a line, a synchronous motor 1 that is started by the first impulse drives two contact arms 12, 12a over two circles of fixed contacts 13, 13a arranged'in two parallel planes and projecting inwards from annular insulating supports 7, 7a. Each circle of fixed contacts is made from a spider-like structure, Fig. 4, stamped out from a sheet of material and then pressed into a frame of synthetic resin moulding mass after which the inner part is stamped out to leave the arrangement of Fig. 3 which shows also terminals 9 connected to the contacts. One of the contacts 8 is longer than the others and forked at its end and the two parts bent outwards to engage the two rings which form part of the contact arm 12, so supplying current to the rings. Each ring has an extension 14 and the extensions are bent inwards to engage the circle of contacts. The two contact arms 12, 12a may be mounted on the same shaft and staggered so that they engage contacts alternately. In the form shown, however, the arm 12 is mounted on a shaft 5 which, by means of a pawl and ratchet mechanism, Fig. 2 (not shown) advances a sleeve 25 one step for each revolution of the shaft 5 and the sleeve 25 carries the arm 12a. The switch 12 thus acts as a "unit" switch and the switch 12a as a " tens " switch. The arms 12, 12a also have associated with them gapped conducting discs 17, 17a engaged during most of a revolution by contacts 15, 16 and 15a, 16a so as to complete the motor circuit. At the end of a revolution the contact 16 enters a gap, and if the parallel contact 16a is also at the end of its revolution and in its gap, the motor will stop. Fig. 7 shows the circuit arrangement. Receipt of a first impulse at 59 closes contacts 61 which complete a circuit from a source 60 to the motor 1 through contact 40 of switch 12. As soon as the motor has started and the contacts 16, 16a have left their gaps, main- 'taining circuits for the motor are established at 15, 16 and 15a, 16a. Circuits to relays 66a, 66b, 66c have been connected to selected contacts of the " unit " and " tens " switches 12, 12a as shown so that to operate any one of these relays it is only necessary to send a second impulse at 59 at a suitable time, i.e. a time when the contact arms 12, 12a are resting on the contacts connected to the particular relay. A circuit is then completed from the source 60 through the contacts 61, switch 12, selected relay 66a back through switch 12a, and the relay is operated.
Patent GB-1302614-A (GB)
Inventor: TUCKER R J
IPC: B29D11/00
Filed: 1970-02-19
Abstract: 1302614 Polymer compositions for absorbing laser radiation AMERICAN CYANAMID CO 19 Feb 1970 [18 March 1969] 8090/70 Heading C3P [Also in Division G2] The following compounds are used as absorbers, incorporated in plastic filter compositions for protecting the human eye against the adverse effects of laser radiation:- (A) 1,4,5,8 - Tetracyclohexylaminoanthraquinone. (B) N,N,N<SP>1</SP>,N<SP>1</SP> - Tetrakis (p - dibutylaminophenyl) - p - benzoquinone - bis - (imonium hexafluoroantimonate). (C) Tris - (p - diethylaminophenyl)aminium hexafluoroantimonate. (D) N,N,N<SP>1</SP>,N<SP>1</SP> - Tetrakis (p - diethylaminophenyl) - p - benzoquinone - bis - (imonium hexafluoroantimonate). (E) Tris - (p - dibutylaminophenyl)aminium hexafluoroantimonate. (F) Bis - (p - diethylaminophenyl)[N,N - bis- (p - diethylaminophenyl) - p - aminophenyl]- aminium hexafluoroantimonate. (G) 2 - Hydroxy - 4 - methoxybenzophenone. (H) 2,2<SP>1</SP> - Dihydroxy - 4 - methoxybenzophenone. (J) 2-(2<SP>1</SP>-Hydroxyphenyl)-benzotriazole. (K) 2-Hydroxy-4-octyloxybenzophenone. (L) p - Methoxy - benzylidene - malonic acid, dimethyl ester. (M) 1-Phenylazo-naphthol-2. The absorbers can be incorporated into resins such as polymethyl methacrylate or polyvinyl chloride together with other additives such as plasticizers and stabilizers, e.g. zinc stearate. They can also be added to methyl methacrylate syrups, optionally with other additives, which syrups are polymerized in cells using azobisisobutyronitrile initiator. Reference has been directed by the Comptroller to Specification 1,033,914 and 1,069,951.
Patent GB-725351-A (GB)
Title: Improvements in or relating to centrifuges for extracting liquids from spools of yarn
IPC: D06B15/10
Filed: 1953-03-24
Abstract: 725,351. Centrifugalmachines. FRAUCHIGER, H. March 24, 1953 [March 25, 1952], No. 8127/53. Class 23. In a machine, for drying spools of yarn, comprising a rotary spool support removable from the drive shaft 3 and including a sleeve 7, baseplate 10 and rim 15, levers 19 pivotally mounted on the rim move during drying to engage the wall of the spool to prevent its deformation. The support is fixed to the drive shaft by inserting the tongue 28 of a member 27 between the parts of a split extension 4 of the drive shaft. Weights 14 slidable on the base-plate move outwardly during drying to rotate the levers about pivots 18. When the support is at rest the levers are returned to the position shown in full lines by springs. In a modification (Fig. 3, not shown) the slidable weights are dispensed with and the lower parts of the levers are weighted.
Patent GB-555785-A (GB)
Title: Apparatus for photographic printing
IPC: G03C1/77
Filed: 1941-06-27
Abstract: 555,785. Paints. DEHN, F. B. (Martin Co., G. L.). June 27, 1941, No. 8131. Drawings to Specification. [Class 95] [Also in Group XX] A photographic plate for receiving copies of drawings &c. consists of a metal support having on its surface a light-sensitive layer which is prepared from pure bone gelatine and is separated from the metal by a layer of white paint which is inert with respect both to the metal and the sensitive layer. The original is preferably made on a metal sheet as of aluminium or an alloy thereof, the surface of which may be anodised and coated with white paint. It is photographed on to a plate of aluminium or aluminium alloy, the surface of which may be emulsion layer coated over a substratum of white paint which is inert to both the metal support and to a light sensitive emulsion, e.g. a paint known under the Trade Name Preparakote and consisting principally of titanium dioxide, zinc oxide, powdered pumice, naphtha and mineral spirits. The emulsion may be prepared by dissolving the pure bone gelatine in water, adding an aqueous solution of potassium iodide and potassium bromide, and then adding under a safe light, an aqueous solution containing silver nitrate, nitric acid, and salicylic acid (preservative). The emulsion is digested at 125‹F. in a light-tight container for four hours and is then wiped on the painted metal surface with absorbent cotton.
Patent GB-613062-A (GB)
Title: Improvements in or relating to dry gas meters with one bellows
IPC: G01F3/22
Filed: 1946-03-15
Abstract: 613,062. Gas meters. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. March 15, 1946, No. 8153. Convention date, May 30, 1945. [Class 54] A single bellows type dry gas meter having all the members controlling the distribution outside the gas and the penetration of the spindles of the valves into the boxes effected through a diaphragm subjected on one side to pressure of the gas and on the other to atmospheric pressure is so constructed that the force due to gas pressure acting on the valve spindle, such as that due to a diaphragm, is balanced by means providing a force acting in the opposite direction to the aforementioned. force. A spindle 5 of a valve 4 passing through and secured to a diaphragm 6 is coupled by a pivoted lever 8 to a short rod 12 connected to a second diaphragm 7 so as to counter-balance the gas pressure on the diaphragm 6 and thus the spindle 5. The diaphragm 7 may be replaced by a compensating spring placed either directly on the valve spindle 5 or on a relay like the diaphragm 7.
Patent GB-822557-A (GB)
Title: Fountain pen with an exchangeable nib
Inventor: GEMPE ERICH
IPC: B43K1/00
Filed: 1956-03-15
Abstract: 822,557. Reservoir pens. SOENNECKEN, A., [trading as SOENNECKEN, F. [Firm of]]. March 15, 1956, No. 8194/56. Class 146(3) A fountain pen has a removable nib provided with a cylindrical shank portion insertable into and withdrawable from the annular space between the inner wall of the head of the nib holder and the feed bar, said shank portion having, opposite the back of the nib, a longitudinal slit, and the feed bar having guiding means to project into the slit. The nib-section of the pen comprises a holder head 2, Fig. 1, having a bore 4 in which is inserted a feed-bar 3, which may be of plastic material so as to leave an annular space, into which is removably inserted a nib 8, Figs. 1 and 3, having a cylindrical shank 9 with a slit 10, so that the rear end of the nib abuts against a seat adjacent an internal screw-thread 5 of the holder head, which latter receives a threaded part 6 of the feed-bar, packing 7 being provided to prevent ink leakage. The nib is guided during insertion and removal by a guide strip, which may be of metal or a pin or pins on the feed-bar or the holder head engaging the slit 10. Alternatively, one of the edges of the slit may be bent inwardly or outwardly to engage in a groove respectively in the feed-bar or the holderhead. The bore having the thread 5 may be of smaller diameter to provide a wider stop seat for the rear end of the nib. The nib shank may have a recess opposite The slit 10, or two recesses opposite each other and spaced ninety degrees from the' slit 10, engaging corresponding projections on the feed-bar. In another form, Fig. 6, the rear end of the nib shank has an outwardly rolled rim 40, and a stop sleeve 46 is secured into the holder head to retain the rim 40 in the annular space, the feedbar having a pin 43 or a strip engaging the nib slit. The rim 40 may be replaced by two outwardly-bent lugs. In another form Fig. 11, the stop sleeve is replaced by a sleeve 50, shown inverted, which is retained in the holder by a spring ring in an annular groove 51. The sleeve 50 has grooves 54 for guiding lateral lugs at the rear end of the nib shank, said lugs being below the ends of the grooves when the nib is inserted, and the sleeve having cam surfaces 55 to move the lugs out of alignment with the grooves and secure the nib on rotation of the sleeve. In front of the shank portion, the nib may be provided with a projection 57, Fig. 19, or two or three such projections, to facilitate withdrawal of the nib by means of a tool 62 whose end is forked to provide an internal curved portion where radius of curvature is the same as that of the nib, whereby the tool can be supported as a lever on the front edge of the holder head with the curved part against the nib, and the edge of the curved part engaging the projection
Patent GB-740676-A (GB)
Title: Method for the preparation of hydrazodicarbonamide
IPC: C07C281/06
Filed: 1954-03-22
Abstract: Hydrazine-dicarbonamide, NH2-CO-NH-NH-CO-NH2, is made by heating an aqueous solution of urea and a hydrazine salt with a non-oxidizing mineral acid, the pH being maintained at 4.0 or less during the reaction.  This condition is achieved by intermittent or continuous addition of an acid or acidic solution, preferably also a non-oxidizing mineral acid, with or without a buffer such as ammonium sulphate.  Suitable acids (also for forming the hydrazine salt) are sulphuric, phosphoric and hydrochloric.  The pH is preferably held between 2.0 and 2.5 during the major part of the reaction.  An example is given of the process.  The urea is preferably employed in excess of the theoretical amount.
Patent GB-541905-A (GB)
Title: Loop antenna
IPC: H01Q7/04
Filed: 1940-05-08
Abstract: 541,905. Aerials. PHILCO RADIO & TELEVISION CORPORATION. May 8, 1940, No. 8280. Convention date, June 5, 1939. [Class 40 (v)] A loop aerial 1 is screened against electrostatic disturbances by an earthed outer winding 2 which is wound over the sides 3, 4 of a rectangular or oval frame made of wood, hard rubber, "Bakelite" (R.T.M.) or the like. The aerial loop 1 is wound upon spacers 5 which are located at the inner edges of the frames so that the capacity between the loop 1 and screen 2 may be minimized. The loop 1 is wound, Fig. 2, on one half of the spacers 5, and the grid connection is taken from the innermost winding, where the capacity between the latter and the screen 2 is least. The aerial is provided with a strip 10 carrying terminals and a padding condenser 12. The screening coil 2 is connected to earth, preferably at its middle point, Fig. 3 (not shown), so that it is balanced with respect to earth and the impedance between the turns and earth is minimized.
Patent GB-1376604-A (GB)
Title: Liquid cooled suits
IPC: F25D3/14
Filed: 1972-03-07
Abstract: 1376604 Diaphragm pumps DEFENCE SECRETARY OF STATE FOR 7 March 1972 [31 March 1971] 8305/71 Heading F1A [Also in Division F3-4] A diaphragm pump for use in a closed liquidcirculating cooling system for protective clothing comprises a container 20 divided into pumping units 21a, 21b by a wall 22, each being divided into compartments 23, 24 by a flexible diaphragm 25 parallel to the wall 22 and the diaphragms are connected by a slideable rod 25. Each compartment 23 is connected by a pipe 27 to an outlet port 28 of a bi-stable fluidic controller 29 and by a pipe 30 to a control jet 31 of the controller. Chambers 32, 33 in the wall 22 are connected by non-return valves 33, 44 respectively to the compartments 23, 24. The inlet end 9a of a coolant liquid supply pipe leads into the chamber 32 and an outlet end 9b leads from the chamber 33. Operation of the pump is effected by gaseous carbon dioxide generated in a pressure vessel (not shown) which is passed to the fluidic controller 29 for entry into either compartment 23a or 23b.
Patent GB-1179923-A (GB)
Title: A Sliding Clasp Fastener, and a Process and Equipment for the Manufacture Thereof.
IPC: B29C48/12
Filed: 1967-02-22
Abstract: 1,179,923. Extruding sliding clasp fasteners. OPTI-HOLDING A.G. 22 Feb., 1967 [5 March, 1966 (2)], No. 8414/67. Heading B5A. [Also in Division E2] A fastener comprises two stringer tapes to each of which is secured an extruded strip formed with heads and recesses which interlock with their counterparts in the other strip and means are provided to prevent lateral movement of the interlocking elements normal to the plane of the fastener. The fasteners are made by a process comprising feeding a die strip 23 through an extrusion head 22, to completely sheath the strip in plastics material 24, cooling the formed strip, paring away excess material to expose the strip 23, and then removing the strip to leave an extruded sliding clasp fastener strip with interlocking heads protruding therefrom, Figs. 1, 15 (not shown). The die strip 23 is formed from dies to comprise a strip having both edges containing open dies in the required shape of the interlocking heads. Stringer tapes (39), Fig. 15, are fed into the head 22 with the strip so that the rows of interlocking heads become interlocked thereto during extrusion. Rolls 41 ensure consolidation of the extruded material and total filling of the dies. Alternatively, only a strip or strips of interlocking heads may be formed, which is or are subsequently bonded to stringers. In either case only one strip may be formed if the die strip has only one edge formed with dies. The heads may be formed with undercut recesses (10), Figs. 1, 2 (not shown), or strips (12), Fig. 3 (not shown), may extend longitudinally of the head carrying edge of the fastener to cover gaps (9) in which opposed heads lock when closed. The die strip 23 may comprise an endless belt.
Patent GB-1495589-A (GB)
Title: Method and apparatus for burning fuels
IPC: F23D14/70
Filed: 1975-02-28
Abstract: 1495589 Burners MITSUBISHI JUKOGYO KK 28 Feb 1975 [5 March 1974] 8487/75 Heading F4T  A burner comprises fuel nozzes 1, wherein fuel is mixed with an amount of air greater than that required for complete combustion, and a further nozzle 2, having a fuel passage 5b and an air passage 4b which passes air in an amount less than that required for complete combustion. Gas passes through pipes 3a, 3b,- in nozzles 1 and the gas mixes with air or air exhaust gas mixture passing through passages 4a, 5, the amount of air being greater than that required for complete combustion, and simultaneously gas passes through a pipe 5b into a chamber 8 where it is mixed with a small amount of air, and air passes on the outside of chamber 8, the sum of both amounts of air being less than that required for complete combustion. Nozzles 1 form what is called a premixture flame, and nozzle 2 forms a partial premixture or diffusion flame. In a modification, Fig. 6 (not shown), liquid fuel is fed to nozzle (12) forming the diffusion flame and gaseous fuel is fed to the nozzles (11) producing the premixture flame.
Patent GB-666592-A (GB)
Title: Improvements in cosmetic powder boxes
IPC: A45D33/00
Filed: 1949-03-30
Abstract: 666,592. Stands. LEITER, H., and FANCY METAL GOODS, Ltd. March 30, 1950. [March 30, 1949] No. 8563/49. Class 52 (iii). [Also in Group XVII] A mirror is secured to the inner face of the lid 11 of a powder box 1, the lid being connected by a ball joint 9 to an arm 6 pivoted to a base plate 3 supporting the box. In a modification referred to in the Provisional Specification the arm is hinged directly to the box body.
Patent GB-964242-A (GB)
Title: Improvements in or relating to x-ray tube anodes and methods for their manufacture
IPC: H01J35/08
Filed: 1962-03-06
Abstract: At least the impact area of an anode for an X-ray tube consists of an alloy of 1 to less than 5% Re, the balance being W.  The alloy may include 5-25% of one or more metals having a vapour pressure not exceeding 10-5 mm. Hg. at 2000  DEG C.  The anode may be made by compressing a mixture of W and Re powders and covering the compressed powder with a layer of W powder (and possibly an additional layer of Mo powder); after compression the composite body is sintering at 2300-2800  DEG C. and forging at 1400-1600  DEG C.