baber/WOPTO huggingface dataset:
Patent GB-574346-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B23/142
Filed: 1944-04-27
Abstract: 574,346. Spanners. FAIREY AVIATION CO., Ltd., and PEEL, A. C. April 27, 1944, No. 7935. [Class 61 (iii)] A torque-limiting spanner of the type having a box spanner rotatably mounted in a handle, has a spring-controlled driving means which consists of a roller seated partly in a recess in the periphery of the spanner and partly in a recess in the inner peripheral wall of an aperture in the head of the handle. As shown in Fig. 5, the box spanner or rotor a, having a recess b extending partially through it, has a central surface c bearing against the head e and outer surfaces d bearing against two side plates g. These plates are joined together by a pin j, Fig. 2, and are joined by links k to a pin m which moves in a slot o located in a plunger n. A cap p, having an abutment bearing against one end of the spring q, is screwed on to the handle f at r, allowing the initial stress of the spring to be adjusted. At the position of minimum stress the roller w, the ends of which project into radial slots in the plates g, is in the position shown in Fig. 2. When the spanner is turned to tighten a bolt, the rotor a is carried round in the handle until sufficient resistance is offered by the bolt to cause slight relative angular movement 'between the rotor and the head e. This causes the obtuse angle between the plates g and links k'to be increased and the plunger n to be forced back against the spring q. This continues until a predetermined value of spring pressure is reached, when the plates g and links k are in alignment, the roller w then moving into the enlarged part v of the recess in the head e, freeing the rotor a from motion with the handle. More than one roller and a corresponding number of recesses may be employed. A modification for both right- and left-hand threaded bolts has the recess b extending completely through the rotor, which is marked to indicate which end should be outmost in each case. Alternatively, the plunger n may work between two coiled springs, there being two enlargements such as v in the recess in the head.
Patent GB-711186-A (GB)
Title: Improvements relating to the packaging of metal and other articles
Inventor: MASTERS GEORGE ERNEST
IPC: B65D81/26
Filed: 1952-03-28
Abstract: 711,186. Packaging; paper and like bags. SALTER & CO., Ltd., G. Jan. 29, 1953 [March 28, 1952], No. 7954/52. Classes 94 (1) and 94 (2) A method of packaging a metal or other article comprises placing the article in an envelope made of air and moisture-proof material and containing a desiccant, sealing the envelope, allowing the desiccant to remain in communication with the part of the envelope containing the article until substantially all the moisture in the envelope has been absorbed, sealing off communication between the portions of the envelope containing the article and desiccant and then cutting off the portion containing the desiccant. The envelope, Fig. 1, is made from two sheets of polythene or polyvinyl chloride sealed together along the lines a-a<SP>1</SP>, b-b<SP>1</SP>, and c-c<SP>1</SP> to form a compartment 6 communicating with a compartment 5 through an opening 4, a porous bag 7 containing a desiccant being placed in the bottom of the envelope prior to the formation of the seal c-c<SP>1</SP>. The article 8 to be packaged is placed in the envelope. the mouth of the envelope is sealed along the line d-d<SP>1</SP>, Fig. 6, and after a suitable time interval the seal c-c<SP>1</SP> is extended to c<SP>11</SP>. The bottom portion of the envelope is then severed below the seal c-c<SP>11</SP>
Patent GB-273373-A (GB)
Title: Improvements in decolorizing china clay and the like
IPC: C01F7/20
Filed: 1926-03-23
Abstract: 273,373. Wickham, P. E. March 23, 1926. Aluminium silicates.-In decolourising china clay, any iron present is removed, and organic colouring matter first reduced and then removed, by treating the clay, in the form of watery paste, with a hydrosulphite, then with an acid, and filtering off the impurities. For example, to a paste containing 7-10 per cent of dry clay is added solid dry hydrosulphite in the proportion of 4 lbs. of the latter to each ton of dry clay, and the whole thoroughly mixed, as in an agitating tank. Formic acid, in the proportion of 1-4 lbs. to each ton of dry clay, is then stirred in, and the resulting mixture pumped or blown to a filter press for removal to the iron &c. Instead of formic acid, other organic acids, a mineral acid, or a mixture of a mineral acid with an organic acid, may be used. Specification 16129/11 is referred to.
Patent GB-381478-A (GB)
Title: Improvements in and relating to floors and roofs for buildings
IPC: B63G8/08
Filed: 1932-03-17
Abstract: 381,478. Floors ; roofs. GRIESEL, H., 34, Hohenstaufenstrasse, Berlin. March 17, 1932, No. 8015. Convention date, March 21, 1931. Addition to 380,601. [Class 20 (iv).] The floors and roofs described in the parent Specification and comprising joists and upper slabs which clamp the lower or ceiling slabs, are modified by the ceiling slabs 2 being flexibly but inextensibly connected to auxiliary beams 20 which engage recesses in the abutments 5 or 6 for the floor slab 8 and have sloping faces 23. On assembly, the beams 20 are forced against and up the webs of the main joists 1 and put the connections 21 in tension. The flexible connections may be iron bars, woven wire, strip iron, or of hinge formation. The abutments may be long or short blocks and either solid or hollow.
Patent GB-374929-A (GB)
Title: Improvements in or relating to cinematographic projectors
IPC: G03B21/20
Filed: 1931-03-16
Abstract: 374,929. Electric lamp lanterns. COLLINGS, C. E., HILLERY-, 9N, Camberwell Green Estate, London. March 16, 1931, Nos. 8017 and 13444. [Classes 39 (ii) and 75 (iv).] The portion of a tubular housing containing a lamp and condenser wherein the lamp is inserted is split to facilitate. the insertion of the lamp, which is carried in a socket shaped to make a ball-and-socket joint with the housing, and can be tightened up by means of a clamping ring after adjustment. As shown in Fig. 3, a tubular housing 97 holding a concave mirror 98 and a condenser 99 at the ends has an upward split extension 100 which is tapered and threaded to co-operate with a clamping ring 104, and which receives a ball 102 screwed to the clamp 103, as shown in Fig. 6. Depression of a pin projecting from the housing rocks the housing to engage the lamp contact 109 with the fixed contact 110. The lamp housing is perforated at both sides opposite the lamp filament to check the position of the filament relative to the concave mirror.
Patent GB-1222424-A (GB)
Title: Photopolymerisable lacquer
Inventor: PIETSCH HERWARD
IPC: G03F7/004
Filed: 1968-02-20
Abstract: 1,222,424. Photopolymerizable lacquers. FILMFABRIK WOLFEN VEB. 20 Feb., 1968, No. 8190/68. Headings C3A and C3P. [Also in Division G2] A photopolymerizable lacquer comprises a solvent, an initiator and, as photopolymerizable constituent, a compound of general formula in which R represents a high molecular weight saturated organic radical, Ar represents a benzene nucleus, a fused polycyclic aromatic radical containing from two to four benzene nuclei, or a ring assembly containing from two to four benzene nuclei, which benzene nucleus or nuclei may be condensed with one or two heterocyclic rings, and/or which may carry substituents that do not react with nitro groups, m is an integer from 1 to 6, n is an integer greater than m, and in which the Ar moiety may be attached to the radical R by an intermediate radical. In the examples polyvinyl alcohol is swollen in pyridine and treated with p-nitrobenzoyl chloride, picryl chloride, and m-nitrobenzene-sulphonyl chloride, polyvinyl alcohol is acetalized with m-nitrobenzaldehyde, cellulose is treated with p-nitrobenzoyl chloride, a vinyl chloride-vinyl alcohol copolymer is treated with p-nitrobenzoyl chloride and polystyrene is nitrated, the products dissolved in cyclohexanone, and dimethyl formamide, Nichler's ketone, benzyl and benzoic-methyl ester added and coatings produced from these lacquers exposed to high-pressure mercury lamps.
Patent GB-1502860-A (GB)
Title: Method for compensation of the electrochemical perturbing direct current potential in inductive flow measurement with a periodically switched uniform field
IPC: G01F1/60
Filed: 1975-02-27
Abstract: 1502860 Induction flowmeters L KROHNE 27 Feb 1975 [5 March 1974] 8214/75 Heading GIN Electro-chemical D.C. potentials in an induction flowmeter are compensated by energizing it alternately at two different values B 1 , B 2  of magnetic induction, inverting and storing 5 the output voltage generated at the output of the measuring amplifier 2 with the induction at value B  1 , and combining the stored voltage with that at the amplifier output when the induction is at value B 2  whereby the electro-chemical potential is cancelled. In a further development, where the electro-chemical potential (U EC ) Fig. 4b (not shown) is time-dependent, the output voltages from the amplifier are stored in separate stores (13, 14) for equal times during the periods when induction is B 1 , B 2  respectively. Since the electro-chemical potential is not inductiondependent, it is cancelled by subtracting the stored voltages one from the other in a differential amplifier (16). A still further development Figs. 5, 6 (not shown) also compensates additional D.C. noise signals generated in the amplifier circuit.
Patent GB-398869-A (GB)
Title: Improvements connected with the construction of internal combustion engines
IPC: F02F7/00
Filed: 1932-03-19
Abstract: 398,869. Cylinders; bedplates. POOLEY, J. P. F., 17, Bethecar Road, Harrow, Middlesex. March 19, 1932, No. 8239. [Class 7 (ii).] Engines of different power are constructed on a standard bedplate 1 by mounting liners 3 having integral heads and varying bores but a standard packing ring 7 for the water jacket. The bedplate is designed for the highest - powered engine contemplated, the internal diameter of detachable main-shaft housings 23 and the external diameter of the flywheel 27 being varied as desired.
Patent GB-349680-A (GB)
Title: Improvements in or relating to leading mechanisms for type composing or type castingand composing machines
IPC: B60B3/06
Filed: 1930-03-14
Abstract: 349,680. Type-making machines. LANSTON MONOTYPE CORPORATION, Ltd. and ELLIOTT, R. C., 43, Fetter Lane, London. March 14, 1930, No. 8271. [Class 100 (iii).] Leading-mechanism for type-setting and singletype composing and casting machines. In leading - mechanism for machines controlled by a record-strip, a container or galley B, Fig. 2, for the leads is positioned above the type-galley A<4>, and is adapted to be moved towards and away from the reciprocating gate A<5> at the entrance to the galley. When the container B is in the forward position, the foremost lead is engaged and drawn downwards by a bar or catch C on the gate A<5>, and is moved into the galley by a pusher A<6>. The lead-holder is reciprocated by a lever D<2> and a motor D, which is controlled by a signal in the record-strip, the two components of which are not used together for controlling any other function of the machine. The air-supply to the motor is controlled by two valves D<4>, D<5>, Fig. 5. The valve D<4>, when lifted by air admitted by the valve D<5>, connects two passages D<8>, D<9>, through which air can then pass from a constant supply to the motor D. The valve D<5> is lifted by air admitted by one component of the signal, and, in its raised position, connects passages D<13>, D<24>, through which air admitted by the second component of the signal passes into a chamber D' below the valve D<4>. An adjustable stop is employed to vary the movement of the pusher A<6> according to the thickness of lead used.
Patent GB-972068-A (GB)
Title: Vehicles for travelling over land and/or water
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1960-03-09
Abstract: 972,068. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. March 9, 1961 [March 9, 1960], No. 8328/60. Heading B7K. A vehicle has means producing and containing a pressurized cushion of gas beneath the vehicle, the cushion being at least partially contained by a hollow inflatable member 3, 4 extending laterally outwards from the main body of the vehicle. The cushion is formed by air issuing from ports 8, 9 in members 3, 4 and body 2; the ports 8, 9 may communicate directly with the interior of member 3, 4 which can be deflated and stored against body 1, Fig. 5, or hinged to body section 2 to pivot upwards to a stowed position by jacks whilst still inflated, Figs. 6, 7, not shown. The air for the curtain may be supplied via flexible ducts in members 3, 4 and the air may be that used for inflation or from another source; the ports 8, 9 in section 2 are fed via ducts in sections 2 or body 1. Wheels 13 may be driven from engine 7, normally operating compressor 6, to move the vehicle over prepared surfaces and may be at least partly retractable. In a plenum type vehicle, Fig. 8, the inflatable member 20, extending all round section 2, is inflated via ducts 21 and the cushion is formed by air from port 23. The bottom of member 20 may be divided into two concentric, downwardly projecting parts to form a secondary cushion for stability, Fig. 9, not shown. The vehicle may be propelled by varying the efflux angle of the curtain by vanes in ports 8, 9 or by air propellers.
Patent GB-636551-A (GB)
Title: Improvements in or relating to toggle locks
IPC: F16B13/08
Filed: 1947-03-28
Abstract: 636,551. Bolting. RAWLPLUG CO., Inc. March, 28, 1947, No. 8435. Convention date, Nov. 28, 1944. [Class 89 (i)] Devices for mounting a nut or nut substitute in a hole in a wall &c. are provided with one or more pivoted arms that are moved into position to engage the rear surface of the wall, either by a separate inserting tool or by resilience of the parts. Means are provided to lock the device in position independently of the bolt for joining an article to the wall. A sleeve 1, Fig. 4 has a flange 2 to limit the extent of insertion into a hole in the wall &c. 11, and a slotted extension with notched edges bent to form teeth 5. A nut 9 has trunnions 10 on which arms 7 are pivoted. A long inserting screw 12 engages the nut and the sleeve is passed into place with the arms 7 folded. Pull on the screw then moves the arms into operative position in which edges 6 engage two of the teeth 5 and lock the device in position. The screw 12 is then removed leaving the nut free to receive the normal attaching bolt for the article to be secured. The sleeve may be replaced by a wire bent at 16, Fig. 7, to a shape to serve instead of the flange 2 and having legs 17 that engage notches in the arms 7 and are provided with barbs to act as teeth 5. The end of the legs are formed into hooks 19 to prevent separation of the parts during insertion. In an example of a construction in which a single arm is employed this is provided with a hole 33, Fig. 12, with radial slots 34 so that the resilient metal may act as a nut for the fixing bolt. Similar holes 38 receive the legs of the wire securing device (not shown) and coact with the barbs thereon. This form is inserted by a special wire tool 32 with out-turned ends that snap into holes in the arm. This tool is removed after the fastener is installed. A number of further forms are illustrated in the Specification.
Patent GB-522508-A (GB)
Title: Improvements in or relating to an electric reciprocating motor for warning signals and the like
IPC: G10K9/15
Filed: 1939-03-17
Abstract: 522,508. Reciprocating motors. STEVENS, A. H. (Sparks-Withington Co.). March 17, 1939, No. 8554. [Class 35] A reciprocating motor with a circuit breaker actuated by the armature has a winding consisting of a strip metal wound about a core to which one end of the strip is connected, the conductor being insulated except one or more of the innermost turns with strip insulating material. In the form shown the inner end of the copper strip is secured to the core 10 for which the inner and uninsulated turns form a damping winding, the remaining turns being separated by strip insulation. The outer end of the copper strip 37 is secured to the circuit breaker 26, 27 actuated by the stud 13 secured to the armature 17 and the diaphragm 3 of a warning signal. A flat spring 19 is provided as a guide for the armature.
Patent GB-364944-A (GB)
Title: Improvements in or relating to apparatus for use in boiling eggs
IPC: A47J29/06
Filed: 1931-03-20
Abstract: 364,944. Egg - cooking apparatus. SPERBER, B., 61, Knesebeckstrasse, Berlin. March 20, 1931, No. 8650. Convention date, July 14, 1930. [Class 28 (i).] In an egg-boiling stand of the kind comprising a p e r - tured d egg-holding platforms adapted to be slid down over a central column to be supported by ledges or stops thereon, each platform c is formed with a central non- circular opening to fit upon a corresponding non- circular column a which is provided at the supporting points with pairs of oppositely disposed transverse notches to afford support for a platform when it is turned about the column into engagement with such notches as shown in Fig. 3. Fig. 1 shows the general characteristics of a stand of the kind to which the invention relates ; platforms cl, c<2> slide on a column a and are supported by tongues which engage grooves b<1>, b<2> in the column. The column a may have a hole h at its upper end to hold a time indicator i.
Patent GB-587668-A (GB)
Title: Improvements in electric circuit breakers with arc extinguishing devices
IPC: H01H33/12
Filed: 1943-05-31
Abstract: 587,668. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. May 31, 1943, No. 8694. Convention date, May 29, 1942 [Class 38 (v)] A load-break disconnect switch comprising a blade 4 bridging contacts 1, 6 has an arcextinguishing contact structure 7 and series disconnect contact 13 in parallel with, and operating after, the blade. The blade comprises two spaced strips embracing the contact 6 and housing the structure 7 between them, the arrangement being that when the blade is operated by means of a pole applied to ring 14, the contact 13 is held back by a latch 26 to produce separation of the contacts in structure 7, and is then released by slipping under the latch to cause those contacts to reclose in the open (dotted line) position of the blade 4. In reclosing, the contact 13 deflects the latch and engages contact-strip 25 to make the circuit before blade 4 re-engages contact 6. The structure 7 comprises a two-part housing 8 enclosing a rotor 15 which is provided with bearing surfaces 32 for the housing 8 and stub axles 18 for rotation in the blade strips. Roller-contacts 9, 11 on the rotor surface co-operate with contacts 10, 12 on the housing-interior, the contactsupports 9', 11<1> being outwardly spring-biassed at 16 and connected together by braid. The housing 8 carries a toothed segment 19 meshing with a pinion 20 which is rotatable on a pin 21 in an attachment 22 on one blade-strip and engages a spur gear 23 carried on one axle 18. Thus when blade 4 is opened, contact 13 moves until arrested by latch 26, the further movement of blade 4, as housing 8 rotates anticlockwise on it, causing the rotor 15 to rotate clockwise to provide two series-breaks, a spiral spring 29, Fig. 3, restoring the housing and rotor to their normal positions at the completion of the opening movement. The housing and rotor have cylinders 33, 34 of fibre, methyl methacrylate, or other gas-evolving material, forming an arc-quenching space between them. The arc-gases escape from contacts 9, 10 into a copper-wool muffle 37 in a conducting tube 42 between contacts 10, 13, and thence through slots 44 in the tube 42 into a space 45 and exhaust passages 46. The gases from contacts 11, 12 escape through passage 35 in conducting block 35<1> into copper-wool 37 in a tube 36, the block 35<1> being connected at 39 to a conductor 38 having sliding engagement with a blade strip 4. In a modified form of gas escape, Fig. 7, each arc space 53 communicates round the edge of cylinder 33 with grooves 52 terminating in a corrugated metal sheet muffler 54.
Patent GB-553475-A (GB)
Title: Improvements relating to heat-loss measuring apparatus serving as external regulators for automatically controlled heating installations
IPC: G01K1/14
Filed: 1942-06-26
Abstract: 553,475. Thermometers. LANDIS & GYR, SOC. ANON. June 26, 1942, No. 8794. Convention date, July 17, 1941. [Class 97 (iii)] Regulators or heat-loss measuring apparatus, which are mounted outside a building to be heated or which control the heating installation in accordance with the weather conditions, are provided with means permitting adjustment of the action of the weather influences on the apparatus. As shown in Fig. 1 the regulator 4 is provided with a fixed hood 1 within which is pivoted a shield 6 which may be drawn over the regulator 4 to varying extent and locked in the desired position by screw 7 entering one of a series of apertures 8 in the shield. Fig. 3 shows another form in which the regulator 4 is contained in a casing 11 having slots 12 permitting access of the weather influences to the regulator 4. A casing is chosen having the area of slots desired or two casings 11 fitting over one another may be provided and relatively rotatable to vary the effective size of the slots. In another form the casing may be of mesh, part of which is shieldable by replaceable wall surfaces.
Patent GB-608859-A (GB)
Title: Improvements in the regeneration of contact particles
IPC: C10G11/18
Filed: 1945-04-10
Abstract: <PICT:0608859/III/1> In a process in which contact particles contaminated with carbon are regenerated by treatment as a fluidized mass with oxygen-containing gas, cool contact particles are continuously or intermittently injected into the effluent regenerating gas, immediately after its separation from the regenerated particles, and over a substantial part of the disengaging space.  As shown, a reactant, e.g. gas oil, heavy or light gas oil naphtha, &c., from line 10, regenerated catalyst from line 14 and steam from line 16 (which may also serve for vaporized oil) pass to a reaction vessel 22 through a distributer head 18, the reaction products escaping through separator 32.  The catalyst may be a cracking or reforming catalyst.  The spent catalyst is stripped in zone 40 by gas introduced by lines 42, and fluidized by the introduction of gas by lines 43, 44, passes by pipe 54 to regeneration vessel 58 admixed with air or other regenerating gas from line 52.  After regeneration in a fluidized condition, the catalyst returns via line 74 to line 14.  Fluidizing gas lines 82 are shown.  A proportion is, however, withdrawn through pipe 118, and after cooling in an indirect heat exchanger 122, passes through pipe 134 to a header 136 whence it is uniformly distributed at below, say, 500 DEG  F. in the dilute phase 68 of the catalyst in regeneration vessel 58, to reduce the temperature to 1000-1050 DEG  F.  Emergency cooling water sprays 142 are also provided.  Regeneration gases escape through separator 84 to line 88, to which a proportion of cooled catalyst may also be introduced, and pass through a heat exchanger 92 to an electrical precipitator 96.  The separated catalyst fines are admixed with coarser particles from line 103, and fluidized by gas from lines 102, 106 are returned to the regeneration vessel 58 admixed with air from line 114. Specifications 590,244 and 593,185 are referred to.