baber/WOPTO huggingface dataset:
Patent GB-601609-A (GB)
Title: Improvements in or relating to the regulation of gas heaters
IPC: F24H9/20
Filed: 1945-06-11
Abstract: 601,609. Fluid-pressure servomotor-control systems. SULZER FRERES SOC. ANON. June 11, 1945, No. 14738. Convention date, June 23, 1944. [Class 135] [ Also in Group XIII] In a gas heater (see Group XIII) having a fuel burner and a heat exchanger in which a gas receives heat from the combustion products of the burner, the temperature of the heated gas leaving the heater is automatically controlled by a temperature regulating device which is responsive to this temperature and causes a quantity of the gas to be heated to byepass at least some part of the heat exchange surface, and the temperature of the combustion products leaving the heater is automatically controlled by a temperature regulating device responsive to this temperature, the two temperature regulating devices operating independently of each other. In the apparatus shown for controlling the fuel supply so as to restore the temperature of the flue gases to a predetermined value if there is any variation from that value, a temperature-responsive rod 18 in the outlet flue operates, through a linkage 25, a piston valve 26 which controls a double-acting piston 29, movements of which vary the load on a spring 32 and so result in unbalancing of the pressure upon the piston valve 33 of gas in the cylinder 39. This results in a movement of the valve 33 and a flow of gas into or out of the cylinder 39 through the inlet 37 or outlet 38 until the action of the spring 32 is balanced. The resultant pressure changes in the cylinder 39 are transmitted to the servomotor 14, the piston 41 of which consequently moves under or against the action of the spring 42 to open or close the valve 44 in the fuel supply pipe 1. The valve 44 is also actuated by bellows 15 responsive to changes in pressure in the air supply to the burner. Movements of the piston 29 are also transmitted to a cylinder 31 and thence initially to the piston 34 which is connected to the linkage 25, so that the valve 26 is moved back towards its middle position. This initial movement of the piston 34 results in loading of the spring 47 which therefore moves the piston 34 in the cylinder 31, gas passing from one side of the piston to the other through the adjustable throttle 35. The value of the temperature to be maintained can be adjusted by adjusting by the screw 46 the position in which the spring 47 is unloaded. Similar apparatus is provided for adjusting dampers in the main and byepass inlets for the gas to be heated, in response to variations in the temperature of the heated gas in the outlet.
Patent GB-408108-A (GB)
Title: Improvements in a holder for a packet of "book" matches
IPC: A24F27/12
Filed: 1933-05-22
Abstract: 408,108. Attaching match packets to wearing-apparel. ONDRICEK, A., 2524, 37th Street, Astoria, Long Island, New York, U.S.A. May 22, 1933, No. 14778. [Class 43.] A holder for supporting a packet of " book " matches on a belt, or in a pocket, &c. comprises a substantially rectangular metal, &c. plate 5 cut adjacent and longitudinally of three side edges to form two spring arms 9, 10 with which the packet engages. The arm 9 is offset forwardly and has its free corners flared upwardly, as shown, to facilitate insertion of the arm between the matches and the back of the packet ; and the arm 10, which is offset further than the arm 9, is inserted in front of the matches. A spring tongue with a forwardly curved upper portion 7 serves to attach the plate to a belt, &c. The lower edge of the plate is formed with a supporting ledge 8. The device may be ornamented and carry advertising matter.
Patent GB-638024-A (GB)
Title: Improvements in or relating to methine dyestuffs
Inventor: KENDALL JOHN DAVID
IPC: C09B23/12
Filed: 1947-06-04
Abstract: Trinuclear polymethine dyes are prepared by reacting a compound of the general formula <FORM:0638024/IV (c)/1> wherein R1 and R2 are each an alkyl, hydroxyalkyl, acyloxyalkyl, aralkyl, hydroxyaralkyl or acyloxyaralkyl group, R3 is alkyl or aralkyl, D1 and D2 are each a residue of a 5- or 6-membered heterocyclic nitrogen nucleus, n is 0 or 1, x is 1 or 2, and A and X are acid radicals, with a heterocyclic compound containing a reactive methylene group, e.g. a quaternary salt of the general formula <FORM:0638024/IV (c)/2> wherein D3 is a similar residue to D1 and D2, R4 is H or a hydrocarbon group, R5 is similar to R1 and R2, n is 0 or 1, and Y is an acid radical, or the corresponding methylene base, or a compound of the general formula <FORM:0638024/IV (c)/3> wherein Q is O or S and R6 H or a hydrocarbon group.  The reagents may be heated together in a base, an acid, or acid anhydride.  a  : e -Bis-2 - (3 - ethylbenzthiazole) - g .21 - (3 - ethylbenzthiazole) - pentamethine cyanine di-iodide is prepared by heating together in pyridine 1-ethylthio - 2 : 4 - dibenzthiazolyl - 1 : 3 - butadiene dietho - p - toluenesulphonate and 2 - methylbenzthiazole ethiodide and pouring into aqueous KI solution. a -2-(3-Ethylbenzthiazole)-e -21-(1-ethylquinoline) - g .211 - (3 - ethylbenzthiazole-pentamethinecyanine di - iodide, a  - 2 - (3-ethylbenzthiazole) - e  - 21 - (3 - ethylbenzoxazole)-g .211-(3 - ethylbenzthiazole) - pentamethinecyanine di-iodide, a -2-(3-ethylbenzthiazole)-e -21-(1 : 3 : 3-trimethylindolenine) - g  - 211 - (3 - ethylbenzthiazole)-pentamethinecyanine di-iodide, [a  - 2 - (3-ethylbenzthiazole) - d  - 51 - (3 - ethyl - 2 - thio - 4 - ketotetrahydrothiazole) - g .211 - (3 - ethylbenzthiazole)-tetramethinemerocyanine] iodide, [a  - 2 - (3-ethylbenzthiazole) - d  - 41 - (1 - phenyl - 3 - methyl - 5 - pyrazolone) - g  - 211 - (3 - ethylbenzthiazole)-tetramethinemerocyanine] iodide, a  : e  - bis - 2 - (3 - ethyl - 5 - chlorobenzthiazole) - g  - 21 - (3-ethyl-5 - chlorobenzthiazole) - pentamethinecyanine di-iodide, a  : c  - bis - 2 - (1 : 3 : 3 - trimethylindolenine) - g .21 - (1 : 3 : 3 - trimethylindolenine)-heptamethinecyanine di-iodide, [a  - 5 - (3-methyl-2 - thio - 4 - ketotetrahydrothiazole) - b  - 2-(1 : 3 : 3-trimethylindolenine) - #x - 211 - (1 : 3 : 3 - trimethylindolenine)-hexamethinemerocyanine] iodide, a  - 2 - (1 : 3 : 3 - trimethylindolenine) - c  - 21-(3 - ethyl - 5 - chlorobenzthiazole) - g .211 - (3-ethyl-5 - chlorobenzthiazole) - heptamethinecyanine diiodide, and numerous similar dyes are similarly prepared.  Specifications 549,202 and 638,023, [Group IV (b)], are referred to.
Patent GB-501877-A (GB)
Title: Improvements relating to floor, wall and like coverings
IPC: C04B18/24
Filed: 1938-05-18
Abstract: 501,877. Fibrous oxychloride compositions. KELLY, V. May 18, 1938, No. 14816. [Class 70] Composition for use as a wall &c. covering comprises paper wool produced in the manufacture of paper tubes used in the yarn-spinning and dyeing industry during the trimming operation, calcined magnesite, and magnesium chloride lye. It is stated that this'paper wool is of a tough fibrous nature free from fillers. The composition may contain 2-5 parts of paper wool to 1 part of calcined magnesite.
Patent GB-690232-A (GB)
Title: Improvements in and relating to torque producing devices such as relays or indicating instruments
IPC: H01H53/10
Filed: 1950-06-15
Abstract: 690,232. Electromagnets. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. June 15, 1951 [June 15, 1950], No. 14982/50. Class 35. [Also in Groups XXXVI and XXXVII] A torque producing device which may be used as a relay or indicating instrument, comprises a two-pole armature 16 overlapping with two pairs of poles 12, 13 and 14, 15, a main winding 30 for producing a main flux round the core 10, 11, and pole windings on one pole of each pair for varying the flux distribution and so turning the armature. A third winding is also provided which may be either on the poles, as shown, and carry the same current as the main coil, or be on the core and carry the pole winding current. The third winding opposes the winding adjacent to which it is wound, i.e. the pole-winding or the main winding respectively. In the form shown, the rotor is restrained by a spring 18 and carries a contact 20 for engagement with fixed contacts 21, 21 for use as a relay. The pole windings 31, 32 are energized with A.C. from a current transformer on one phase of a threephase supply, while the main winding 30 in series with coils 33, 34 are connected between the other two phases. It is shown that with this connection the device responds to the conductance of the circuit and it is stated that it would respond to susceptance if a 90 degree displacement was introduced between the energization of the current responsive winding and the voltage responsive winding. In the modified arrangement of coils the third winding is not placed on the poles but is on the core with the main coil 30 and is energized from a current transformer in series with the pole windings, the main winding 30 being energized between two lines as before. When this arrangement is applied to a single phase line the device is responsive to circuit reactance, while on a three-phase circuit it is responsive to resistance. The A.C. currents supplied to the device may be rectified. Specification 613,856 is referred to.
Patent GB-600745-A (GB)
Title: Means for supplementing the fuel-air mixture supplied to an internal combustion engine by hydrogen and oxygen produced by electrolysis
IPC: F02B43/10
Filed: 1945-06-13
Abstract: 600,745. Actuating materials. HEYL, G. E. June 13, 1945, No. 14990., [Class 7 (ii)] In an arrangement for supplementing the normal fuel air mixture by hydrogen and oxygen produced in an electrolytic cell connected to the battery dynamo circuit of the engine, the hydrogen and oxygen are filtered in the cell before being mixed with the normal fuel air mixture. In the Figure, an electrolytic cell a, supplied by current from the engine dynamo (not shown), produces gases which pass through a filter f and are collected in a chamber d. From the chamber d a pipe passes either to the intake i of the engine carburetter or the induction pipe at the engine side of the carburetter. The filter may comprise a layer of asbestos or glass wool and if desired may be impregnated with a suitable fuel to enrich the mixture as it passes through it. The electrolyte may be acidulated water or caustic potash or caustic soda solution and iron electrodes may be used with the caustic potash or caustic soda. A regulating resistance and ammeter may be included in the circuit of the cell, the resistance being used to regulate the current. A switch may be included in addition to the usual cut-out to prevent the battery discharging through the cell. The cell may be connected to the dynamo on the engine side of the cut-out and may be in series or parallel with the dynamo. Specification 591,718 is referred to.
Patent GB-657113-A (GB)
Title: Method of producing a soft, flexible and resilient surface layer on bodies of a hard, non-resilient material and bodies of a hard material capable of being shaped by machining
IPC: B23P17/00
Filed: 1948-06-03
Abstract: 657,113. Pistons; stuffing-boxes. VADOLT TRUST. June 3, 1948, No. 15048. Convention date, June 11, 1947. [Classes 122(i) and 122(v)] [Also in Groups XXI, XXII, XXXII and XXXIV] Metal bodies, especially those of high tensile strength have the surface made relatively soft and yielding by forming a series of grooves separated by thin ribs 17, Fig. 6, and upsetting the edges of the ribs to close the grooves at 20. In the case of cylindrical bodies the grooves may be formed by axial rolling, the ribs being either built up from alternate discs 1, 2, Fig. 1, or turned from the solid. The rolls rotate at from 4,000, to 5,000 r.p.m. and cooling oil is employed. Three rolls may be used or a single roller 10, Fig. 4 in conjunction with one or more support rolls 12 that engage the work at ungrooved parts. The work may be held in a chuck at one end and supported by a centre at the other. In the case of non-cylindrical bodies the grooves follow the surface contour. Examples of applications given, are to shafts, pistons, projectiles, flanges, stuffing boxes, and bolts and pins for use in rough or undersize bores.
Patent GB-1278713-A (GB)
Title: Peelable metal protectants
Inventor: DEUTSCH HENRY M
IPC: C23F1/02
Filed: 1970-03-31
Abstract: 1278713 Coating HITCO 31 March 1970 15166/70 Heading B2E [Also in Divisions B5 and C3] A peelable coating composition for application to metal comprises a liquid diene polymer containing 2 to 5 -OH or -SH groups; a polyisocyanate or polyamine coupling agent; a volatile solvent; a thermosetting adhesive resin; and a filler which is magnesium, calcium or aluminium silicate, carbonate or oxide. The resin can be a phenolic or an epoxy resin.
Patent GB-311744-A (GB)
Title: Variable speed mechanism
IPC: F16H15/50
Filed: 1929-05-15
Abstract: 311,744. Bedu, C. May 15, 1928, [Convention date]. Variable-speed gearing comprises a non-rotary track 9 variable in diameter upon which an internal wabble-gear 8 or an external planet-gear rolls, the friction or toothed wabble or planet gear transmitting the. power through an Oldham coupling or Hooke's joint. Frictional internal gearing is shown. The ring wabble-gear 8 is pressed outwardly so as to roll round inside the track 9 by a spring-pressed roller 5 mounted eccentrically in a frame 6 fast on a driving-shaft 2. The ring 8 has diametral projections 19 which slide in the floating intermediate disc 21 of an Oldham coupling, which drives a plate 25 geared to one or a pair of driven shafts 29. The track 9 is an elastic spiral band with coils 13, 13<1> - - side by side always sprung outwards against a ring of eccentric-cam pushers 14 all of which are geared to a control member 17. The member 17 is angularly displaced to vary the diameter of the track 9 and therefore the. speed of shaft 29. The cam pushers 14 may be replaced by hydraulic rams. When toothed gearing is used, only stepped speeds are obtainable. To change speed, the wabble or planet gear is removed and the toothed spiral 9 expanded or contracted until the teeth on adjacent coils are in register again, whereupon the wabble &c. gear is replaced.
Patent GB-783845-A (GB)
Title: Pharmaceutical composition and preparation thereof
IPC: A61K31/415
Filed: 1956-05-16
Abstract: A sedative composition comprises 2-(1,2,3,4-tetrahydro - 1 - naphthyl) imidazoline, 2-(1-indanyl) imidazoline or an acid addition salt of either compound admixed with a solid pharmaceutical carrier and made up in the form of tablets, troches, lozenges or capsules to provide a solid stable composition in dosage unit form.  The compositions are useful as sedatives, hypnotics or somnifacients and contain from 0.05 to 10 mgm. of the active ingredient.
Patent GB-741756-A (GB)
Title: Method for producing fine crystals of controlled particle size
IPC: C06B21/00
Filed: 1953-06-03
Abstract: RDX (cyclo-trimethylentrinitramine) is obtained in the form of fine uniform crystals by mixing a jet of a hot, filtered RDX solution in acetone with a jet of water having a temperature below 30 DEG  C. (see Group III).  The jets impinge at an angle of 60-90 degrees.  A small proportion of wax may be included in the acetone solution to produce wax-coated RDX, the wax acting as a desensitizer.  Crystals sizes of 1m  to 100m  may be obtained by adjusting the mass ratio of acetone solution to water, by varying the temperature of the water and the size of the jet nozzles.ALSO:<PICT:0741756/III/1> RDX is crystallized from acetone solution by precipitation with water, jets of solution and water being arranged to impinge on each other at an angle of between 60 degrees and 90 degrees and the water temperature being less than 30 DEG C.  As shown hot filtered acetone solution is fed at 13 to a chamber 11 provided with nozzles 15 and a hot water or steam jacket 16 to prevent precipitation of RDX by cooling in the chamber 11 and nozzles 15. A conduit 12 and chamber 10 with nozzles 14 directed towards the nozzles 15 and an angle   of between 60 degrees and 90 degrees are provided for the precipitating water.  The mixed streams may fall directly into a centrifuge for separation of the crystals. The acetone solution may contain a wax which coats the formed crystals and desensitizes the RDX.  Figures are given for the effect on crystal size of variations in flow rates, nozzle size and water temperature.
Patent GB-873501-A (GB)
Title: Improvements in or relating to gear-boxes for driving accessories in aircraft
IPC: F16H57/031
Filed: 1958-05-14
Abstract: 873,501. Toothed gearing. AIR-EQUIPEMENT. May 14, 1958 [May 17, 1957], No. 15434/58. Class 80 (1). [Also in Groups XXVI and XXXIII] A gear-box for driving accessories in aircraft comprises, for supporting the accessories and the transmission means for driving the latter, a rigid framework outside which the gearing of the transmission means are located, the space occupied by the transmission means being closed by light closing means which are removably fixed on the framework, so as to constitute, with said framework, a substantially closed compartment, said closing means forming a cover-plate or cover-plates. The framework comprises two sleeves 2, 3 connected by a transverse wall 4, the sleeves respectively having flanges 5, 6 to which accessories A and B are secured by collars 12 and 13. One set of bearings 13, 14 and 15 are carried by the end wall of the framework and a further set 17, 18 and 19 are carried by a separate housing secured to the framework by screws 21. The accessories A and B are driven respectively through torque limiters 29 and 30 from an external drive-shaft 25 by means of a transmission comprising gearing 24, 22 and 23 located outside the framework and enclosed by a light cover 31 secured by screws at its periphery to the framework and provided with a seal at bearing 19. All other bearings are sealed and the space between cover 31 and the housing may be used as an oil reservoir.
Patent GB-435984-A (GB)
Title: Improvements in needles for rug making and like purposes
IPC: D05C15/06
Filed: 1935-05-27
Abstract: 435,984. Sewing - needles. BROWN, A. H., and BROWN, V. J., 22, Lincoln Road, Peterborough. May 27, 1935, No. 15458. [Class 112] A rug-making needle of the type in which the needle is perforated at the end and acts as a guide for the wool, provided with an adjustable stop 3 for limiting the extent of the penetration of the needle through the backing. The stop also acts as a guide for the wool, a hole 5 being provided for this purpose.
Patent GB-154847-A (GB)
Abstract: 154,847. Paterson, W. P., and Rannie, G. A. April 29, 1920. Teaching small-arm shooting.-Relates to aimindicating apparatus in which an electric lamp is adapted, when the trigger is pulled, to project a beam of light through a lens upon the point aimed at, and consists in means for causing the initial movement of the trigger to actuate mechanism which closes a switch in the lamp circuit, and to obscure the lamp, while the final movement of the trigger to " fire " the gun removes the obscuring means and permits the light to be projected on the point aimed at until the switch actuating-mechanism, during its return movement, opens the switch. The invention is shown as applied to a small-arm in which a lamp 1 is adapted to be lit by a battery 3 when switch contacts 9, 10 are closed and to project a beam of light through a lens 2 in the barrel to indicate the aim. A shutter 19 pivoted on a slidable bar 18 is adapted to be turned into the vertical position between the lamp and lens by a pivoted catch 23 on the slidable trigger bar 22 during the initial pull on the trigger 21. The continued movement of the bar 22 then moves the bar 18 rearwards causing its nose 15 to close the switch 9, 10. The final movement of the trigger to " fire " the gun causes the catch 23 to be tripped by engagement with the frame 17, whereafter the shutter falls, and the lamp illuminates the point at which aim was taken until the bar 18, actuated by the spring 15<a>, has moved forward far enough to release the switch.
Patent GB-604910-A (GB)
Title: Improvements in or relating to safety pins
IPC: A44B9/14
Filed: 1945-04-11
Abstract: 604,910. Safety pins. ZIEDMAN, M. April 11, 1945, No. 15596/44. [Class 43] A safety-pin is constructed in two parts, a fixed body portion 1 and a pivotal securing arm 2, the bent over portion 4 of which is adapted to pass through an elongated slot 9<1>, over a lug 10 and through a smaller aperture 9. An abutment 5 is engaged by the arm 2 when the latter is approaching the closed position. The fastening end 6 of the body portion is bifurcated to form an eye 7 which the free end of the arm 2 enters by means of a slot 8.
Patent GB-886373-A (GB)
Title: Improvements relating to anemometers
Inventor: GRIFFIN PETER FIDLER
IPC: G01P3/48
Filed: 1957-05-16
Abstract: 886,373. Photo - electric anemometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 9, 1958 [May 16, 1957], No. 15602/57. Class 40(3). In an anemometer comprising a multibladed fan 3, the fan-shaft 2 is provided with a three-armed light interrupter 12 which is arranged between a lamp 7 and a photocell 8, the electric impulses from which are fed to a transistor 20 to cause repeated discharge of a capacitor 14 through a milliammeter 19. Specification 831,493 is referred to.
Patent GB-144681-A (GB)
Title: Process of producing tetra-substituted ureas
IPC: C07C273/18
Filed: 1920-06-09
Abstract: Tetra-substituted ureas are obtained by treating secondary aromatic amines, such as methylaniline, dissolved in an inert solvent (benzene, xylene, solvent naphtha, carbon tetrachloride, &c.) with about the theoretical amount of phosgene (one molecular part of phosgene to four molecular parts of amine); a temperature of 70 DEG C. is suitable.
Patent GB-1536719-A (GB)
Title: Semiconductor devices and methods of making semi-insulating layers therefor
IPC: H01L21/00
Filed: 1976-04-15
Abstract: 1536719 Passivating layers SONY CORP 15 April 1976 [21 April 1975] 15648/76 Heading H1K A semi-insulating passivating layer having a resistivity in the range 10<SP>7</SP> to 10<SP>11</SP> ohm-cm. is formed on a semiconductor device surface by implanting oxygen and/or nitrogen ions into a surface layer of polycrystalline or single crystal Si, and then annealing the layer. As shown, a diode surface is provided with a passivating layer by implanting oxygen ions through an SiO 2  layer 4 into a polycrystalline Si layer 3. Annealing of the substrate 2 activates the implanted O<SP>+</SP> ions, and converts the polycrystalline Si layer 3 into a semi-insulating layer 6.
Patent GB-379364-A (GB)
Title: Improvements in or relating to high frequency feeder arrangements suitable for use with radio aerial systems
IPC: H03H7/01
Filed: 1931-05-29
Abstract: 379,364. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and WELLS, N., 32, Richmond Park Road, Sheen, both in London. May 29, 1931, No. 15768. [Class 40 (v).] A high-frequency feeder system which is substantially non-radiating comprises three conductors at a common height above earth, the two outer conductors o being symmetrically disposed about a central current-carrying insulated conductor C. The supports for the system comprise a conducting upright U driven into the earth and carrying a conducting transverse member T, Fig. 1, with slotted ends SE. The central conductor is supported by an insulator I and the outer conductors by cleats CL adjustable in the slots SE. In a broadside aerial array system, vertical aerials A, Fig. 2, arranged half a wave-length apart are connected in pairs by " tails TL to points one wave-length apart on the central wire C of the feeder system which in turn is fed at its centre point by a similar feeder system leading to the high-frequency source or receiver. The tails TL may alternatively be connected to a single wire fed from the feeder system.