baber/WOPTO huggingface dataset:
Patent GB-1502815-A (GB)
Title: Ultraviolet-transmitting window for a prom
IPC: H01L31/10
Filed: 1975-05-02
Abstract: 1502815 Window assembly ISOTRONICS Inc 2 May 1975 [15 May 1974] 18465/75 Heading C1M A window assembly suitable for use in a programmable read only memory device comprises an ultra-violet transmitting borosilicate glass member hermetically sealed within an aperture of a metallic mounting member by compression since the thermal expansion coefficent of the glass is less than that of the mount. The glass may be an ironfree borosilicate glass with a coefficent of 37- 39 x 10<SP>-7</SP> in/in/ C. and the metal of the mount an alloy comprising 29% Ni, 17% Co, balance Fe (about 55 Î 10<SP>-7</SP> in/in/ C.) or cold rolled steel (140 Î 10<SP>-7</SP> in/in/ C.). The assembly may be made by placing a glass preform (e.g. a disc sliced from a rod) in the metal mount with an aperture and heating to fuse the glass and form the compression seal.
Patent GB-136213-A (GB)
Title: Improved Metal Melting Furnace.
Inventor: HARVEY LEONARD CHARLES
IPC: F27B14/00
Filed: 1918-11-12
Abstract: 136,213. Harvey, L. C. Nov. 12, 1918. Tilting and rocking furnaces.-A metal-melting furnace for the production of alloys &c. is provided with means whereby the metal can be introduced beneath a protecting-layer of slag and tapped from time to time from beneath such layer. Such a furnace is shown in Fig. 2 in section transverse to the axis of tilting, which is centrally situated. Metal is introduced through a charging-tube A and hopper B mounted in a cover H. Slag-producing material such as glass may be introduced previously. The hearth is flat at the central portion and formed with a sharp incline 11 at one end adjacent to the metal-tapping spout or discharge-tube C, and a gradual incline 14 adjacent to the spout D by which the whole contents, including the slag, may be withdrawn, when desired, by tilting the furnace. The inclines promote the mixing of the molten metal during rocking of the furnace. The charging- tube A rests on a narrow diametral block K, its lower edge being below the normal level of the metal; it is perforated at I. The lower edge of the discharge tube C is also below the layer of slag. The furnace is heated by gas, oil, or powdered-fuel burners G, and the waste gases escape by the flue E.
Patent GB-779158-A (GB)
Title: Improvements relating to conductivity bridges
Inventor: RAYNOR DEREK
IPC: G01N27/04
Filed: 1954-06-24
Abstract: 779,158. Measuring strength of solutions. UNILEVER, Ltd. June 16, 1955 [June 24, 1954], No. 18540/54. Class 37. An A.C. bridge for measuring the concentration of electrolytes is temperature-compensated by providing a resistance-thermometer R as the arm opposite to that containing the test cell or probe C and providing in series with the latter a resistor Y<SP>1</SP> ganged to the preferably equal measuring resistor Y<SP>2</SP> in the adjacent arm. The minimum value of Y<SP>1</SP> necessary to give compensation depends on the minimum resistance of the cell at the mean operating temperature and on the ratio of the temperature coefficients of resistance and conductivity of the resistance thermometer and cell respectively, and may be provided as a fixed resistor. One electrode of the cell may be the sheath of the resistance thermometer. Examples of values of the components are given.
Patent GB-746243-A (GB)
Title: Improvements in or relating to dictation apparatus
IPC: G11B5/004
Filed: 1954-06-24
Abstract: 746,243. Magnetic reproducing apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 24, 1954 [June 27, 1953], No. 18547/54. Class 40(2) In a magnetic dictation apparatus'having parallel helical or spiral tracks on a cylindrical or disc-shaped carrier, fine adjustment of the position of the transducer is effected by relative movement of the leadscrew and record by means of a rotatable stopless cam-disc. Fig. 1 shows a record cylinder 1, and a leadscrew 5 which is adjustable in an axial direction against a spring 9 by a cam 12 manually rotatable by a knob 14. Fig. 2 shows a modification in which the shaft 2 of the record cylinder is moved by the cam 12. Fig. 3 shows a similarly axially movable leadscrew in conjunction with a, disc record 21.
Patent GB-584965-A (GB)
Title: Improvements in or relating to smokers' ash trays for holding burning cigarettes or the like
IPC: A24F19/00
Filed: 1944-09-28
Abstract: 584,965. Smokers' ashtrays. GARVEY, N. Sept. 28, 1944, No. 18638. [Class 130] A cigarette 6 is supported in slots 4 having so slight a taper that the-cigarette is gripped by its own weight, the angle between the sides of the slots being less than 15‹. As shown the ashtray has a central rib 2 on which two thin webs 3, provided with a series of slots 4 for gripping a cigarette on two spaced lines of contact, are mounted. The rib is so located that a cigarette will drop into the ashtray if it falls from the slots 4. The tray may be provided with a lifting handle 7, and a rubber friction pad and lead weight to prevent it sliding or overturning, or the ashtray may be provided with a back for attachment to a wall. The limbs may be constituted by a U-shaped metal member. In a further modification the slots are provided in two thin co-axial cylinders carried by a round receptacle.
Patent GB-515653-A (GB)
Title: Improvements in machines for applying metal sealing strips to paper and like bottlesand containers
IPC: B65B51/04
Filed: 1938-06-24
Abstract: 515,653. Punching; shearing; sheet metal joints. WARE, H. M., and WARE & CO., Ltd., H. M. June 24, 1938. No. 18770. [Class 83 (iv)] [Also in Group VII] A machine for securing a metal fastening strip c to a tab b at the mouth of a paper container a comprises means for cutting successive strips form a continuous strip of metal, means for punching prongs 80 from the strip and through the tab, and means for clenching the prongs. A strip of metal 5 of a width equal to the length of the strips c is fed from a reel 4 by feed rolls 10, 12 so that its leading end enters a slot 15 in a fixed plate 14. The roll 10 is adjustable by means of a bracket 11. The leading end overlies a plunger 22 above which the tab b is supported by a bracket 65. The plunger 22 is raised so that a strip c is severed by a knife 24 co-operating with a fixed knife 18. Punches 35 carried by plungers 38 are then raised to punch the prongs through the tab. Finally, slides 50, operated by plungers 52 with cam grooves 53, are moved inwardly to flatten the prongs on the tab. The plungers are operated by cams on a shaft 32, which may be actuated by a rack 62 and treadle. The metal strip is fed, as the plunger 22 descends, by a pawl and ratchet 75, 76 operated by a cam 70 on the shaft 32. Automatic means may be provided for ejecting the container from the 'slot 15 before the metal strip is fed. Specification 485,129, [Group XVII], is referred to.
Patent GB-1279556-A (GB)
Title: Improvements in or relating to load handling machines
IPC: B66C23/74
Filed: 1970-04-20
Abstract: 1279556 Excavators POTAIN POCLAIN MATERIEL 20 April 1970 [21 Aug 1969] 18774/70 Heading E1F [Also in Division B8] A method of dismounting a counterweight 7 arranged at one end of a turret 2 pivotally mounted on the chassis 1 of a load handling machine e.g. a mechanical shovel, having main and auxiliary jibs 3, 4, comprises transferring the counterweight from the turret 2 to a support 8 on the chassis by means of the auxiliary jib 4, and thereafter removing the counterweight from the machine by means of the main jib 3 once the turret has been pivoted through 180‹. A constant length cling 10 is coupled between the counterweight 7 and the jib 4, which after the securing screws 9 have been removed from the weight 7, is actuated through an hydraulic ram 5 to transfer the weight 7 onto the support 8, after which the sling is disengaged and the turret rotated. The counterweight is then coupled to the main jib 3 through another sling on a block and tackle, whereby the weight 7 may be transferred from the machine, the main jib 3 being actuated through a cable 6 by movement of the auxiliary jib.
Patent GB-1434363-A (GB)
Title: Electric cables
IPC: H01B9/00
Filed: 1972-04-24
Abstract: 1434363 Impregnated cable BICC Ltd 24 April 1973 [24 April 1972] 18911/72 Heading H1A In an electric power distribution cable whose dielectric surrounding the core(s) is impregnated with a cable impregnant and which has an outer sheath, a covering layer surrounding the core(s) gradually swells when in continuous contact with the impregnant so that when the cable is in service a radial pressure between the sheath and core(s) exists that substantially inhibits its creep of the core(s) relative to the sheath. In an embodiment the swellable deformable material is polypropylene, preferably applied as a helically wound tape. The sheath may be of corrugated metal, preferably aluminium, with one or more helices or with a plurality of circumferential corrugations. Alternatively the sheath may be extruded and non-corrugated. The swellable material may fill substantially all of any clearance between the core(s) and the surrounding sheath. An overlying layer of serving may be placed on the sheath. The impregnant causing the swelling may be an insulating oil.
Patent GB-533503-A (GB)
Title: Improvements in or relating to fuzes for shells or bombs
IPC: F42C9/12
Filed: 1939-06-29
Abstract: 533,503. Projectile fuzes. DUNCAN, W. O. (Aktiebolaget Tolfvan Osakeyhtio.). June 29, 1939, No. 18930. [Class 9 (i)] A combined direct-impact and delay-action fuze has for delay-action a cylindrical hammer 2 in which slides a piston 4 carrying an axiallymovable firing pin 8 which is actuated by a percussion cap 5 in the piston when, on impact, the piston is urged by a spring 6 against a second firing pin 10 on the hammer: The fuze includes a time-igniter 12 actuated by the hammer pin 3 on impact, and, if the impact is severe, the hammer shears a pin 17 and instantaneous ignition occurs. The invention is shown applied to a fuze mounted in the tail of an aerial bomb. After removing a safety pin 13, the hammer 2 and its contained parts are released in known manner during flight, but movements of the parts for ignition occur only on impact. If the impact is light, the pin 3 ignites the time fuze. but the pin 17 holds up the hammer to prevent contact of the pin 8 with the detonator 20. The downward set of the hammer 2 releases a catch 7 holding the piston and a catch 9 holding the firing-pin 8. The piston then rises under the action of the spring 6, and the cap 5 is ignited by the pin 10 to propel the firing pin 8 on to the detonator 20. The pin 15 serves to prevent rotation of the hammer
Patent GB-1431694-A (GB)
Title: Systems for regulating the fuel/air mixture for an internal combustion engine
IPC: F02M23/04
Filed: 1973-04-19
Abstract: 1431694 Automatic control of concentration ROBERT BOSCH GmbH 19 April 1973 [22 April 1972] 18936/73 Heading G3R [Also in Division F1] In an I.C. engine carburetter type fuel/air mixture control system, see Division F1, the output of an exhaust gas composition measuring probe 29 connects with an amplifier 30 which is wired as an integrating amplifier and to the second input of which is applied a reference voltage, an adjusting member 32 being displaceable on the output signal of the amplifier 30. Ways of effecting the adjustment are as follows (none of the Figures referred to are shown): needle valve in the fuel supply, Fig. 1 (not shown); variable throat Venturi, Fig. 2 (not shown); variable valve in an air by-pass, Figs. 3 and 4 (not shown); variable pressure in the float chamber, Figs. 5 and 6 (not shown); variable level in the float chamber by tilting the chamber or influencing the float or its associated fuel supply pipe.
Patent GB-1267626-A (GB)
Title: Devices for measuring stresses in a drill pipe
Inventor: CHATARD MICHEL
IPC: E21B47/00
Filed: 1970-04-21
Abstract: 1,267,626. Measuring stresses. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. April 21, 1970 [April 21, 1969], No.19022/70. Headings G1N and G1W. Axial and torsional stresses in a drilling pipe string are measured by strain gauges 7 and 8 on a relatively thin-walled elastically deformable tubular member 1 incorporated in the drilling string, and a relatively thick-walled tubular safety element 2 is arranged co-axially within (as shown) or around Fig. 3 (not shown) the deformable member 1 so that relative movement between the deformable member 1 and the safety element 2 is possible within predetermined limits, the safety element 2 preventing deformation of the deformable member 1 beyond these limits in the event of excessive stress in the drilling string. As shown in Fig. 1, the safety element 2 is connected to the deformable member 1 by pins 4, 5, 6 fast with the safety element which loosely engage circular or oval holes in the deformable member 1, relative axial and torsional movement being possible within limits set by the pins and holes. Alternatively, Fig.3 (not shown), loosely meshing screw threads (21) may define the limits of relative axial movement, a pin (19) fast with the deformable member co-operating with a hole (20) in the safety element to limit torsional movement. A tubular protection piece 15 or (18) and seals 22, 23 keep drilling fluid from reaching the strain gauges and protect the deformable member 1 from the pressure difference between the inside and outside of the drilling pipe. A plurality of devices may be connected in series with progressively thicker deformable members to cover a wide range of stress. Pressure transducers 16 and 17 sense the fluid pressures outside and inside the drilling pipe. Corrections may be made to the axial stress measurement for the weight of the drilling string below the strain gauges and for the effect of fluid pressure drop in the drilling string if turbodrilling is being done.
Patent GB-191765-A (GB)
Title: A process of fixing nitrogen
IPC: C01C3/00
Filed: 1921-07-14
Abstract: Cyanide-forming materials are fed to a chamber containing cyanide, the necessary heat is supplied, part of the reaction gases are utilized to preheat the reaction materials, and the rest withdrawn through a side chamber containing carbon maintained at a suitable temperature to prevent reversion, and the withdrawal of the cyanide from the reaction chamber is regulated so as to maintain a mass of cyanide therein.  The reaction may be effected in a blast furnace or slagging gas-producer, the temperature at the reaction zone being maintained at 1200-1400 DEG  C. and the temperature of the side chamber at 1000 DEG  C.  The air is preheated, and the proportion between the gases passing up through the charge and the gases withdrawn through the side chamber is regulated so as to effect the conversion of all the alkali to cyanide.  Alkali may be added to the carbon in the side chamber in the liquid state and carbon may be added in the side chamber in the form of hydrocarbons.  Liquid cyanide is withdrawn from the side chamber.  The alkali employed in the process is preferably used in the form of carbonate but sulphates, chloride, silicates, or aluminates may also be used.
Patent GB-767804-A (GB)
Title: Improvements in or relating to swash-plate pumps and motors
IPC: F01B3/00
Filed: 1953-07-09
Abstract: 767,804. Revolving-cylinder pumps. VICKERS, Inc. July 9, 1953 [July 10, 1952], No. 19028/53. Class 102(1). [Also in Group XXIX] A hydraulic pump or motor of the swashplate type, in which a cylinder barrel 34 is splined at 78 to a drive shaft 76 and abuts a stationary valve plate 44, has the drive shaft 76 supported in a bearing 90 in the housing of the pump or motor, the bearing being situated between the spline connection 78 and the juncture of the cylinder barrel and valve plate. A collar 68 is splined to the cylinder barrel 34 and has a spherical surface 66 contacting a conical bore in a sleeve 60 carrying a cage 58 in which are mounted shoes 42 carrying the spherical ends of pistons 38. Springs 72 in recesses 74 in the cylinder barrel press against the collar 68 to urge the shoes 42 against a thrust plate 46 and also to urge the cylinder barrel against the valve plate 44. Specifications 645,420 and 767,805 and U.S.A. Specification 2,313,407 are referred to.
Patent GB-474932-A (GB)
Title: Improvements relating to radio receivers
IPC: H03J3/14
Filed: 1936-07-10
Abstract: 474,932. Wireless receiving circuits. COLE, Ltd., E. K., and FALKUS, A. E. July 10, 1936, No. 19115. [Class 40 (v)] In a radio receiver having a cathode-ray tuning indicator and an amplifier valve which is used solely to operate the indicator when radio signals are being received, switching means are provided on gramophone reproduction to cause the amplifier to operate also as a signal amplifier. For wireless reception, the switches 1, 2, 3 are in their right-hand positions ; the junction of the signal diode load resistances R11, R12 is then connected over the volume control potentiometer VR1 to the grid of V3 and also over resistances R17, R15 to the grid of the triode portion of a combined amplifier and cathode-ray indicator V6, the triode anode being connected to the indicator deflecting plates, so that maximum signal causes minimum grid potential and maximum anode potential of triode V6, thereby causing maximum illumination of the indicator screen. On gramophone reproduction, switches 1, 2, 3 are over to the left, the pickup terminals G are connected to the input of triode V6, the bias of which is altered by switch 3 so that it functions as a low-frequency amplifier, while the indicator is raised to maximum illumination to show that the set is on " gramophone." A further switch may be conjointly operated with switches 1, 2, 3 to bias prohibitively the valves controlled from the A.V.C. network R9, R10 on gramophone reproduction.
Patent GB-758291-A (GB)
Title: Harvester-thresher machine
IPC: A01F12/00
Filed: 1954-06-30
Abstract: 758,291. Harvester-thrashers. SOC. MBG. June 30, 1954 [July 8, 1953], No. 19239/54. Class 58. A harvester-thrasher has a rotary beater drum 5 located across the direction of travel of the machine, a shaker 11 positioned laterally of the beater drum and extending substantially perpendicular to its axis, and a deflector 15, 13, which directs the thrashed crop from the beater drum to the front of the shaker, along which the crop is then moved in a direction opposite to that in which it leaves the beater drum. A plate 14, connected to part 13 of the deflector, may be provided in front of the beater drum. The shaker may be located partly underneath the beater drum and may be movable either angularly or transversely of the direction of travel of the machine. The concave 6 has a lower extension 8 which merges into the upper end of the frame of a conveyer 4, and has also an upper extension 9.
Patent GB-767536-A (GB)
Title: Improvements relating to the construction of concrete beams
IPC: E04B5/23
Filed: 1954-07-01
Abstract: 767,536. Concrete beams. EDMUNDS, H., EDMUNDS, E., EDMUNDS, F., EDMUNDS, S. H. Sept. 19, 1955 [July 1, 1954; July 22, 1955], No. 19262/54 and 21206/55. Class 20(4)  In a concrete beam of T-cross section the edges 3 of the flanges 2 are mitred and the tip of the web is dovetailed, as at 4, throughout the longitudinal direction of the beam. Two out of several applications described are shown in Figs. 4 and 8. The dovetail may be snap-engaged by a sheet metal strip 12 as in Fig. 9 to which a batten 15 for ceiling boards 16 is secured.
Patent GB-1082905-A (GB)
Title: Improvements in or relating to semi-conductor diodes
Inventor: LINDMAYER JOSEPH
IPC: H01L29/00
Filed: 1965-05-07
Abstract: 1,082,905. Semi - conductor frequency changers. TELEGRAPH CONDENSER CO. Ltd. May 7, 1965 [May 8, 1964], No. 19335/65. Heading H3T. [Also in Division H1] A semi-conductor diode 67 having negative resistance properties at high frequencies (see Division H1) is used as the mixer stage in the UHF heterodyne circuit shown, in which tuned signal circuits 62, 63 and a local oscillator 69 are connected in parallel with the diode. To maintain the diode on the negative resistance portion 49 (Fig. 3, not shown), of its currentvoltage characteristic, a bias source 73 is included in the circuit; though the diode may have sufficient negative resistance even at zero D.C. volts for this bias source to be omitted provided high gain is not required.
Patent GB-676642-A (GB)
Title: Improvements in or relating to process for improving reflectivity and stability of metallic pigments
IPC: C09C1/62
Filed: 1949-07-25
Abstract: Metallic flake pigments are prepared by treating the metallic flakes coated with a leaf-producing agent and moistened with 14 to 28 per cent mineral spirits, to a wet polishing operation in the presence of at least one leafing agent in the solid phase, said leafing agent being added in amounts between 1 and 4 per cent of the total weight of the pigment while not exceeding 110 DEG F. Specified leafing agents are stearic and palmitic acids, while aluminium is the preferred metal.  Specification 391,839 is referred to.
Patent GB-976732-A (GB)
Title: Diuretic compositions comprising 2,2-alkylenebisbenzimidazole derivatives
Filed: 1961-05-30
Abstract: 2,21-Alkylidene-bis-benzimidazoles of the general formula <FORM:0976732/C1/1> (wherein R, R1, R2 and R3 represent hydrogen atoms or C1- 4 alkyl radicals and R4 represents a C1- 4 alkyl radical) are prepared as follows: (a) for symmetrical compounds (R1=R4 and R2=R3), by condensing a substituted 1,2-phenylenediamine of the general formula <FORM:0976732/C1/2> with a malonamide RCH(CONH2)2, a malonic ester RCH(COOR5)2 or a malonimino dialkyl ether dihydrochloride: <FORM:0976732/C1/3> (R5 in each of the last two formulae representing an alkyl radical); compounds of the general formula <FORM:0976732/C1/4> are formed as by-products in these processes; (b) for unsymmetrical compounds, by condensing a compound (II) with a carbalkoxyacetimino alkyl ether hydrochloride of the general formula <FORM:0976732/C1/5> (wherein R5 and R6 represent alkyl radicals) to form an alkyl 2-(5-R2-6-R1-2-benzimidazolyl) -alkanoate of the formula <FORM:0976732/C1/6> and condensing this with a substituted 1,2-phenylenediamine of the general formula <FORM:0976732/C1/7> Acid addition salts of the products are described.  1,2-Phenylenediamines (II).-4,5-Dialkyl-1,2-phenylenediamines are prepared from the corresponding 1,2-dialkylbenzenes by nitration to the corresponding 1,2-dialkyl-4-nitrobenzene, reduction of the nitro group and conversion of the resulting 3,4-dialkylaniline group to its urethane, subjecting this to nitration followed by hydrolysis, and reducing the resulting 4,5-dialkyl-2-nitroaniline. 4-Monoalkyl-1,2-phenylene-diamines (II, R1=H, R2=alkyl) are prepared by nitrating the corresponding 1-alkyl-4-bromobenzene, treating the product with alcoholic ammonia, and reducing the resulting 1-alkyl-4-amino-3-nitrobenzene  Malonimino dialkyl ether dihydrochlorides and carbalkoxyacetimino alkyl ether hydrochlorides (formulated above) are prepared by the action of hydrogen chloride and an alkanol R5OH on, respectively, a malononitrile RCH(CN)2 or an alkyl a -cyanoalkanoate <FORM:0976732/C1/8>ALSO:Pharmaceutical diuretic compositions comprise a carrier and a compound of general formula <FORM:0976732/A5-A6/1> wherein R, R1, R2 and R3 are hydrogen atoms or C1-4 alkyl radicals and R4 is a C1-4 alkyl radical or their acid addition salts with pharmacologically acceptable organic and inorganic acids.  Optional additional p  active ingredients disclosed are: reserpine, ectylurea, meprobamate and prochlorperazine maleate (tranquillizers); theophylline, aminophylline, theobromine, sodium salicylate and mannitol hexanitrate (vasolidators); phenobarbitol and methyprylon (sedatives); methylprednisolone (corticosteroid); ascorbic acid and B-complex vitamins; medroxyprogesterone (steroid); chlorothiazide, ethoxzolamide and acetazolamide (diuretics).  The compositions may be in forms suitable for oral and parenteral administration and may contain from about 15 to about 300 mg. (preferably 25 to 100 mg.) of of active compound per dose.