baber/WOPTO huggingface dataset:
Patent GB-145968-A (GB)
Title: Improvements in and relating to cinematograph screens
IPC: G03B21/62
Filed: 1919-06-20
Abstract: 145,968. Marks, W. J. June 20,1919. Optical - projection apparatus. - Projection screens are made by applying wax or other translucent material in a fluid state to a fabric foundation, then heat-treating the foundation to render the translucent material uniform, and finally applying a liquid to form an adherent transparent film. The foundation is preferably a loosely-woven fabric, and may be coloured and treated with paraffin wax and white varnish. The paraffin wax may be coloured, and may be melted and applied with a brush, the coated fabric being then hung in a heated chamber to render the coating uniform. Celluloid varnish may be used to form the transparent film.
Patent GB-726867-A (GB)
Title: Improvements in or relating to circuits for use in automatic telephone systems
IPC: H04Q3/52
Filed: 1953-06-05
Abstract: 726,867. Automatic exchange systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 5, 1953 [June 10, 1952], No. 15559/53. Class 40 (4). In a system in which calls are set up over the discharge paths of gas-tubes BA, BB in the manner described in Specifications 733,577 and 725,733, including a marking circuit TS wherein the cathode of each of the tubes B6-8 is connected to both the striking electrode and the cathode of the succeeding tube by a resistance and a condenser respectively in order that the tubes may strike one at a time and in succession on the reception of dialling impulses, an auxiliary self-extinguishing tube B2 is provided to restore the marking circuit to normal in response to a larger amplitude pulse, and an additional self-extinguishing tube B3 serves to restore the first counting tube B6 to normal if the cradle switch contacts are vibrated to send further pulses when the handset is replaced. Such spurious pulses which would fire marker tube B6 are insufficient to re-operate the clearing down tube B2 because of the time-constant of condenser 21 in its cathode circuit. The striking electrode of tube B6 is, however, connected both to the cathode of the pulse repeating tube B1 and to a potentiometer R31-R33 and in consequence tube B3 which is fired by a spurious pulse and is connected across the resistors R32, R33 applies a restraining pulse to tube B6.
Patent GB-1141852-A (GB)
Title: Binary adder
IPC: G06F7/494
Filed: 1966-04-07
Abstract: 1,141,852. Digital electric calculating. GIDDINGS & LEWIS Inc. 7 April, 1966 [12 April, 1965], No. 15641/66. Heading G4A. In arithmetic means for algebraically combining two binary-coded-decimal digits, one of the digits is added to any transfer signal from a lower order and the result algebraically combined with the other digit to produce a value which is then changed by six if a transfer signal to the next higher order is produced. In a feedback positioning system for a machine tool, an adder-subtractor receives pairs of binary-coded-decimal numbers from various registers and manual adjustors in turn. The two numbers are compared (Figs. 8, 8a-8e, not shown) bit by bit, each bit comparison being enabled if all higher order comparisons indicate equality, to produce a signal (M) which interchanges the numbers if necessary to ensure that the correct input (L) of the adder-subtractor receives the higher number (if they are unequal). Referring to Fig. 5, which shows one decade (decimal order) of the adder-subtractor, section I adds one input binary-coded-decimal digit K1-K8 to any carry or borrow signal from the next lower decade in half-adders HA1- HA8, the result being added to or subtracted from (depending on control line D) the other input digit L1-L8 in half adder-subtractors HAS1-HAS8 in Section II. The result Q1-Q8 controls the production of a carry or borrow signal to the next higher decade, in Section III, and is incremented or decremented by 6 (depending on control line D) in Section IV if such a carry or borrow signal is produced. Bit carries and borrows within Sections I and II are added in within Section I. The signal on line D is produced in accordance with the signs of the input numbers (Fig. 9, not shown). The sign of the result is determined by means (550, Fig. 1, not shown), not described in detail, responsive to the comparator output signal (M).
Patent GB-367261-A (GB)
Title: Method of manufacturing containers such as boxes or the like
IPC: B65D5/28
Filed: 1931-05-28
Abstract: 367,261. Plywood &c. containers. BEUTELSPACHER & CO., Ebelsberg, near Linz-on-Danube, Austria. May 28, 1931, No. 15690. Convention date, May 28, 1930. [Class 18.] Plywood, cardboard &c. boxes or containers are made from two blanks such as that shown in Fig. 1 or those shown in Figs. 3 and 4, with lateral wings b, d, f, which are so situated that the wings of one blank cover the joints of the other when the blanks are assembled. The parts may be secured by gluing and the folding may take place during introduction into the press.
Patent GB-1181306-A (GB)
Title: An Injection Unit for an Injection Moulding Machine
IPC: B29C45/50
Filed: 1967-04-06
Abstract: 1,181,306. Injection moulding machines. ARBURG MASCHINENFABRIK HEHL & SOEHNE. 6 April, 1967 [9 April, 1966], No. 15781/67. Heading B5A. An injection moulding machine having an axially reciprocable screw 9 and an axially displaceable injection cylinder 8 also comprises resilient elements in the form of disc-springs 17 which are prestressed during the injection stroke and disengage the injection nozzle from a mould after injection. The cylinder 8 is connected to a hopper (14), Fig. 1 (not shown), by a bridge 7, which is slidably mounted on columns 10, 11. A unit comprising the screw 9, an hydraulic motor 4 therefor and a bridge 6 is also slidably supported on the columns 10, 11, the unit being coupled by a member 5 and a pistonrod 3 to a piston and cylinder unit 1, 2. In operation, rotation of the screw by the motor 4 feeds plastics material into the cylinder 8 and is there plasticized by heating jackets and accumulates in front of the screw, faces 7<SP>1</SP> of the bridge 7 abutting the springs 17. The screw 9, bridge 6 and motor 4 retract, a throttle 30 regulating the backward movement thereof until a rod 32 releases a microswitch 24 to stop the motor 4 and thereby stop the rotation of the screw 9. The cylinder 8 now contains sufficient preplasticized material to fill a mould. A nozzle having a valve 12, abuts the mould to open the nozzle for injection, the faces 7<SP>1</SP> abutting against the retainer sleeves 16 of the springs 17. Injection is effected by axial displacement of the worm until a rod (20) releases a switch (21) to reduce the pressure in the compression chamber 37, and the switch 24 is actuated to start rotation of the worm to feed more material from the hopper. Simultaneously with, or prior to, this, a control valve (41), Fig. 3 (not shown), ceases supply of fluid to the chamber 37, the springs 17 retract the cylinder from the mould, and the nozzle 12 slides to the closed position. The springs 17 are held between flanges 16<SP>1</SP>, 18 the flanges being adjustable in distance apart by screwing the outer sleeve 16 on an inner sleeve 15 fixed to each rod 10, 11. An hydraulic control circuit is also described (Fig. 3, not shown).
Patent GB-629091-A (GB)
Title: Improvements in or relating to apparatus for moulding firebacks and like trough-shaped articles
IPC: B28B7/16
Filed: 1946-05-24
Abstract: 629,091. Moulds for fire-backs and like troughshaped articles. BENNEY, H. B. May 24, 1946, No. 15816. [Class 87 (ii)] A mould for making fire-backs and the like comprises a lower male portion 10 of inverted trough shape with open ends and diverging side walls 13 terminating in flanges bent to provide a channel 14 and horizontal seating flange 16, and an upper female portion 11 having an open top, narrow end walls 18 the edges of which seat on the top and sides of the male portion, and diverging side walls 17 terminating in horizontal flanges 19 which seat on the flanges 16 of the male part of the mould. The end walls 18 project below the flanges 19 at 20 to fit into the channels 14 of the male part. Holes 21 are provided in the flanges 16 and 19 to bolt the halves of the mould together and to a moulding table. Holes 22 are provided in the flanges 16 through which lifting'plungers may pass to engage the flanges 19 and lift the female part after moulding has been completed. A V-shaped depression 23 is formed in the top of the male part 10 to form the " throat " part of the fire-back and the walls 17 of the female part are likewise shaped at 24 to receive a V-shaped block to co-operate with the depression 23. Openings are left between the block and the ends of the female part for pouring refractory concrete mix into the mould. Alternatively a shaped cover plate provided at one end with a pouring funnel may be bolted to the female part 17. The outer walls 15 of the channels 14 diverge outwardly to form chamfers on the edges of the side walls of the moulded fire-back. A thin sheet metal liner on which the moulded product may be removed for hardening may be used over the male part 10.
Patent GB-311952-A (GB)
Title: Improvements in means for securing asbestos cement or other sheets, slabs and the like to framing, walls and other supports
IPC: E04F13/08
Filed: 1928-05-30
Abstract: 311,952. Speaker, G. R. May 30, 1928. Drive-screws. - In a device for securing asbestos and like sheets to walls &c., without piercing the face of the sheet, the conical head 1 of a screw is expanded to fit the undercut recess in the sheet 7, by forcing the wedge 5 along the slot 4 by means of the washer 8 and nut 9, the wedge resting on the face of the washer. The screw is firmly held at right angles to the sheet by the washer 8 bearing on the back surface of the sheet. The screw, which may have a sharpened point 3 is now driven into the wall, the tongues of a split disc 12 engaging the threads to prevent reversed motion, or the hole to receive the nail may be lined with a resilient sleeve. In a modification, the screw has an annular groove 21 which engages with a slot in the plate 18. This plate does not lie in a plane parallel to the sheet so that as the screw slides along the slot the sheet is drawn tightly against the wall.
Patent GB-710491-A (GB)
Title: A new or improved system for controlling the temperature of electric and other heaters
Inventor: PANISSET DENIS SYDNEY
IPC: G05D23/24
Filed: 1950-06-26
Abstract: 710,491. Thermal switches. SIMPLEX ELECTRIC CO., Ltd. June 21, 1951 [June 26, 1950]. No. 15848/50. Class 38(5) [Also in Groups XI and XXXV] A bimetallic regulator used for a variable on/off automatic temperature control system (see Group XXXV), comprises a contact 12 carried by a snapaction blade spring 18 which is actuated through a pushrod 22 on an arm 21 at one end of a rockable bar 19 pivoted at 20, and the bimetallic strip 15 and its associated heating coil 16 at the other end. The bimetal bears against a pivoted arm 24 which is adjustable to vary the temperature setting by a screw 29 pushing against a biasing spring 28. Specifications 565,252 and 640,097 are referred to.
Patent GB-1382864-A (GB)
Title: Method and apparatus for installing risers
IPC: F16L1/15
Filed: 1972-04-06
Abstract: 1382864 Installing riser pipes EXXON PRODUCTION RESEARCH CO 6 April 1972 [26 May 1971] 15909/72 Heading F2P In installing a riser pipe at an offshore structure the latter has a guide member extending downwardly into the water alongside the structure, the riser pipe is erected adjacent the guide member and a slidable connecting member is positioned on the riser pipe and the guide member near the upper end thereof and is moved downwardly on the riser pipe and guide member into a position beneath the surface of the water and is fixed in the said position to hold the pipe with respect to the guide member. The guide may be a rail 17 and the slide member composed of a tubular member 30 which is passed over the riser tube 28 and an arm 33 having means for engaging the rail 17. A number of slide members may be positioned one after another and connected, e.g. by flange means 32, 36. In a second embodiment (Figs. 9 and 10, not shown) the connection between adjacent slide members is arranged not to pass over the riser pipe and each slide member has a split clamp for clamping around the riser pipe. In another embodiment (Figs. 11 and 12, not shown) the slide members are attached to cable means for moving them down the guide member and riser pipe. A technique is described for positioning the riser pipe adjacent the guide member.
Patent GB-928142-A (GB)
Title: Improvements in detachable chain links
IPC: F16G13/14
Filed: 1961-05-02
Abstract: 928,142. Chain couplings. J. VARVENNE. May 2, 1961 [May 31, 1960], No. 15915/61. Class 24. A chain link is formed of two separable U- shaped halves 7, 8 joined by connectors 5, 6 each of which consists of a right-hand threaded portion 1 and a left-hand threaded portion 2 which co-operate with corresponding threaded bores in the link halves. The assembled link has the form of a simple closed loop of uniform cross-section, so as to be indistinguishable in use from the simple links of chains to which it may be attached.
Patent GB-692155-A (GB)
Title: Improvements relating to welding generators
Inventor: BUTT JOSEPH
IPC: B23K9/10
Filed: 1950-06-26
Abstract: 692,155. Supply systems for welding arcs; exciting dynamo-electric machines. REYROLLE & CO., Ltd., A. Aug. 31, 1951 [June 26, 1950], No. 15952/50. Classes 35 and 38 (iv). In a welding generator set of the kind including an automatic idling device adapted to operate on the throttle or other speed controlling member and thus reduce the speed of the prime mover when the welding circuit has been opened for a predetermined time, the power required to operate the speed control member is derived from the generator itself. As shown in Fig. 1, the idling device comprises a solenoid C for connection across the welding circuit, or across a pair of brushes of the generator between which the voltage varies widely with welding current, the solenoid acting on a pivoted armature C1 connected through linkwork FF2 to an arm A2 which rides loosely on the throttle shaft A1 of the prime mover. Under welding conditions the solenoid is insufficiently energized to attract the armature, so that the throttle is subject to normal control by a governor E through a chain E1 and an arm A. When welding ceases, the consequent increased excitation of solenoid C causes the armature C1 to be attracted-against a time delay dashpot D. Arm A2 is thus rotated about Al and the throttle closed by a striker A3 engaging the arm A. The armature C1 may also operate contacts C2, C3 for cutting out resistance from the excitation circuits of the generator, whereby the voltage is raised to a value sufficient to enable welding to recommence at idling speed. The dashpot is ineffective when the solenoid releases its armature upon re-commencement of welding, so that restoration of normal field excitation and engine speed quickly obtain. In another arrangement the circuit of the solenoid C is controlled by a relay responsive to flow of welding current. When the prime-mover drives two generators one generator may be provided with a throttle control solenoid C, the circuit of which includes a pair of contacts of a currentoperated relay of the second generator, so that the engine is throttled down only when both generators are unloaded. Specifications 503,155, 534,016 and 692,156 are referred to.
Patent GB-995403-A (GB)
Title: Method of, and pallet means for, supporting and stacking articles
Inventor: BEST RONALD FREDERICK
IPC: B65D19/00
Filed: 1964-04-17
Abstract: 995,403. Load handling pallets. SOLENT CANNERS Ltd. April 17, 1964, No. 15967/64. Heading B8H. In a method of supporting and stacking a plurality of similar rectangular articles 1, a shell of cardboard 16, used as an expendable element, is folded from a rectangular sheet, Fig. 1, into a channel configuration having a flat horizontal rectangular base 7 lying between two fold lines 2, 2 with two vertical rightangular parallel side walls 6 lying between fold lines 2, 3; 2, 3. Each side wall 6 terminates at the same height in an outward wing 8 between fold lines 3, 4. Each wing 8 is doubleply, formed by a reverse fold 9 between fold lines 4, 5. Six articles 1 are arranged on the base 7 as shown and lips 10 on the end of folds 9 are tucked in. Successive layers of articles may be stacked as shown, the shell with articles forming a pallet.
Patent GB-186579-A (GB)
Title: Stabilising means for use with ordinary spring suspensions of road vehicles
IPC: B60G11/36
Filed: 1922-06-08
Abstract: 186,579. Brouthiet, G. Sept. 28, 1921, [Convention date]. Springs, arrangement of.-A device for increasing the duration of oscillation of a vehicle body on its suspension springs comprises a cam fixed to the body or axle of the vehicle and a spring-pressed roller. which roller on the cam when relative movement occurs between the body and axle. As shown, the cam a is fixed to the axle, and a pair of rollers b are carried by rods c connected to the body d of the vehicle, the free ends of the rods c being connected by a linkage e controlled by a spring f in such a manner that the rollers are held against the cam. The cam is formed with straight portions so that the device is ineffective through a range of movement corresponding to variations in the load when the vehicle is stationary. In a modification, the rods c and spring-controlled linkage are replaced by a bow-shaped laminated spring carrying the rollers b. Reference has been directed by the Comptroller to Specification 182,783.
Patent GB-829984-A (GB)
Title: Improvements in coverings for electric cables
IPC: B29C48/05
Filed: 1958-05-19
Abstract: 829,984. Cables. OSNABRUCKER KUPFER-UND PRAHTWERK. May 19, 1958 [May 18, 1957], No. 15975/58. Class 36. A cable has a core 1 enclosed in a helically corrugated metal sheath 2 having a thermoplastic covering 51 which is provided with ribs 5<SP>11</SP> enclosing elements 6 constituting the armouring. The elements 6 may consist of metallic or non-metallic solid or hollow wires, strips, or threads, and they may be arranged helically around or parallel to the axis of the cable. The thermoplastic cover may be applied over the sheath 2 by an extruder 3 which extrudes the plastic as a tube 5 over a hollow mandrel 4. The wires 6 are led between the cable and a tube 7 which extends through the mandrel. As the tube 5 is extruded it is collapsed on to the cable and the wires under the action of vacuum applied through a connection 9 to the interior of the tube. The wires may be passed through the extruder in a direction parallel to the cable axis, or they may be arranged helically by a spinning device 8 coupled to the tube 7 which rotates in the mandrel 4. Specifications 798,520 and 804,310 are referred to.
Patent GB-331654-A (GB)
Title: Removal of acetylene from gases
IPC: C07C7/11
Filed: 1929-05-24
Abstract: 331,654. Horsley, G. F., Roffey, F., and Imperial Chemical Industries, Ltd. May 24, 1929. Gases, separating mixtures of.-Acetylene is recovered from gaseous mixtures by solution in an ester or ether boiling about 100‹ C.; an ester, ether, or ester-ether of a, polyhydric alcohol is preferred. Suitable solvents are glycol monoformate; glycol mono. and di-alkyl ethers, e.g. methyl, ethyl, and propyl ethers; esters of manoalkyl ethers of ethylene glycol, e.g. the acetate of ethylene glycol monoethyl ether; glycerol mono- and di-acetates; glycerol mono-, di-, and tri-alkyl ethers, e.g. the ethyl ethers; esters of mono- or di-alkyl ethers of glycerol, e.g. esters of glycerol diethyl ether; ethereal phthalates; and ethyl lactate. The acetylene may be dipssolved out in stages under pressure, as described in Specification 331,610. Examples illustrating the use of glyeerol triacetate, glycol diacetate, and the acetate of ethylene glycol monoethyl ether are given. The first Provisional Specification mentions, as suitable solvents, n-butyl, isoamyl, benzyl and cyclohexanyl acetates, propyl propionate, ethyl and butyl phthalates and lactates, benzyl benzoate, and methyl salicylate. The second Provisional Specification states that glycol monoacetate also may be used.
Patent GB-492618-A (GB)
Title: Method of making bearings
IPC: F16C33/14
Filed: 1937-06-11
Abstract: 492,618. Bearing bushes. GENERAL MOTORS CORPORATION. June 11, 1937; No. 16235. Convention date, June 11, 1936. [Class 12 (i)] [Also in Group XXII] A method of making a bearing unit consisting of a porous metal bushing 10 fixed in an outer metal sleeve 11 comprises fitting the bushing into the sleeve and then heating the assembled unit to alloy the bushing to the sleeve. The bushing 10 is formed by briquetting metal powders, e.g. a mixture of copper, tin, and graphite, and the sleeve 11 may be of brass, bronze, or steel. In the latter case the inner bore of the steel sleeve is plated with a thin coating of tin, copper, or other alloy which will bond to the porous metal bush under heat. The resulting bearing unit can be very tightly pressed in the bore 15 of a supporting member 16 without danger of reducing the inside diameter of the porous metal bushing.
Patent GB-515380-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/04
Filed: 1938-05-31
Abstract: 515,380. Electrolytic condensers. SIEMENS & HALSKE AKT.-GES. May 31, 1938, No. 16238. Convention date, May 31, 1937. [Class 37] Strip aluminium &c. for making anodes is wider than the finished electrode will be, and is formed before cutting to size. Preferably two electrodes 4, 5 are made from each strip by cutting as along the line 1 in the Figure whereby two integral unbent terminal strips 2, 3 are provided. In a modification, a central part only of a strip is used, the edges being cut away.
Patent GB-459237-A (GB)
Title: Improvements in and relating to mixing apparatus
IPC: B01F15/00
Filed: 1935-06-04
Abstract: 459,237. Mixing-apparatus. HENKEL, A. A., 69, Holland Park, London. June 4, 1935, No. 16263. Convention date, June 4, 1934. [Class 86] Mixing - apparatus comprises a bowl a in which works a blade b which is close to the wall of the bowl and at an angle thereto and is fitted with a grid c through which the material passes. The bars of the grid may be streamlined, or circular in cross-section, or may have cutting edges.
Patent GB-666638-A (GB)
Title: Improvements in or relating to automatic yarn winding machines
Inventor: MUSCHAMP HAROLD LIONEL
IPC: B65H75/08
Filed: 1948-06-17
Abstract: 666,638. Winding yarn &c. MUSCHAMP, H. L. June 17, 1949 [June 17, 1948], No. 16278/48. Class 120(ii) An automatic winding machine including a winding spindle forming a centre for one end of a core j on which winding is to be effected, is characterized in that filament 'clamping means b', e‹, separate from the end of the core, are provided, such means being normally held resiliently apart, as by a spring h, but that upon insertion of the core j and the closure thereupon of the tailstock o, the clamping means b<SP>1</SP>, e‹ are pressed together to grip the filament led therebetween by a guide arm at the conclusion of a wind and prior to the commencement of a new winding operation. The clamping means b', e‹ are carried by an adaptor with a screw-threaded extension c taking into the driving spindle, a pin g limiting the axial movement of a plunger e and making it rotate with the spindle. A friction ring k may be fitted in a groove of the plunger. In a modification, the plunger e carries a spring-urged core-driving blade, slidable in a slot therein, and is fitted with a centre plug to position the core. Specification 666,639 is referred to.