baber/WOPTO huggingface dataset:
Patent GB-249618-A (GB)
Title: Improvements in portable rotary saws, grinding discs, buffing discs and the like
IPC: B23Q9/00
Filed: 1925-01-05
Abstract: 249,618. Crowe, J. M. Jan. 5, 1925. Guards.-A rotary sawing, grinding, or like tool 29 is carried and driven by a motor 8 which is rocked about a pivot 10 by means of handles 18 to feed the tool to the work 39, the depth of feed being limited by a guard 35, pivoted at 38 on the motor casing and connected with the tool by a spring 36. The tool spindle works in a slot 34 in the guard, and the feed is further limited by a, stop 43 adjustable along the slot.
Patent GB-156264-A (GB)
Title: Improved process and apparatus for carrying out chemical reactions under pressure
IPC: B01J3/04
Filed: 1921-01-04
Abstract: 156,264. Schellenberg, H. June 13, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Digesters. - Liquids, solids, or gases which react at high temperatures under pressure are introduced, separately or together, into heated pipes wherein the reaction takes place. The figure shows one form of apparatus in which the reacting materials are respectively forced by pumps 1, 7 into the connected pipes 2, 6, which are provided with valves 12, 13 and are heated in the tank 4 and metal bath 8. The outlet of the product is controlled by the valve 11.
Patent GB-1529702-A (GB)
Title: Transducer systems
IPC: G01M7/02
Filed: 1975-12-31
Abstract: 1529702 Monitoring stress waves UNITED KINGDOM ATOMIC ENERGY AUTHORITY 31 Dec 1975 [3 Jan 1975] 324/75 Heading G1G Stress waves are monitored by an array of Piezoelectric or electrostrictive transducer elements, alternately polarized and arranged as shown in Fig. 3. The array may be two dimensional, Fig. 4a (not shown). The inter-connections may be series instead of parallel.
Patent GB-327201-A (GB)
IPC: G09F13/34
Filed: 1929-01-04
Abstract: 327,201. Lehmann, O. Oct. 3, 1928, [Convention date]. Laths and strips, reciprocating in unison; actuating.-A sign of the type comprising multiple display strips moved simultaneously to change a composite surface is mounted on a door a so as to be actuated by its opening and closing. The strips g are mounted on a frame d which is guided in an up and down movement by stationary rods f engaging inclined slots e in the frame d. The strips g thus are raised to be concealed behind similar stationary laths b<1> when the door is closed, and pass down into view, through spaces c between the laths b<1>, when the door is opened. The actuating mechanism comprises a spring-pressed projection m which is forced inwards whem the door is closed and by a pin o turns a bell-crank j the end of which bears on and raises the frame d. Gravity brings the frame d down when the door is opened. The device is protected by glass s, and one may be provided on each side of the door, both being actuated by a common projection m.
Patent GB-1287071-A (GB)
Title: Method of drilling ground in a liquid environment and apparatus and a nozzle therefor
Inventor: PORTE ROBERT
IPC: E21B7/18
Filed: 1971-01-05
Abstract: 1287071 Aerating liquids COMMISSARIAT A L'ENERGIE ATOMIQUE 5 Jan 1971 [5 Jan 1970] 378/71 Heading B1C [Also in Division El] A nozzle for mixing air and water, accelerating the mixture and forming it into a jet comprises a nozzle 6 into which air is pumped via pipe 10 and holes 12 to pass through holes 9 in element 8 to mix with water pumped via pipe 13 into element 8. Venturi 16 accelerates the mixture and forms a jet.
Patent GB-177764-A (GB)
Title: Improvements in or relating to turbines
IPC: F02C5/12
Filed: 1922-01-05
Abstract: 177,764. Suczek, R. March 28, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Working-fluid supply; regulating; motor power plant.-Relates to turbines driven by effecting internal combustion in contact with a liquid in a rotating combustion chamber, and consists in discharging the liquid in a jet, the cross-section of which is varied. The turbine rotor R comprises a centrifugal compressor C, a receiving chamber A, and an explosion chamber E. The compressor C delivers water mixed with gas drawn in through ports j, k in the impeller to the receiving chamber A where the water, being the heavier, is thrown to the outer portion of the chamber. Valves V, V<1>, cam-operated from a shaft B, admit water and gas respectively to the explosion chamber E and, on explosion at a plug g<3>, the water is driven through a nozzle N giving a reaction effect to the rotor R. An impulse wheel may be combined with the turbine. The valves V, V<1>, as shown in Fig. 6, comprise an incomplete elastic rim V which is flexed to a smaller diameter by a rack and lever mechanism v<3>, s<3> and opens ports n<3> in an annular recess. Similar valves v<2> are provided for the exhaust of the gases. The nozzles, Figs. 1 and 2, comprise a chamber y<1> with a port z<1>, a ported sleeve a<2> rotated through bevel gearing from the shaft B and a longitudinally adjustable member g<2> with a port h<2>. The rotation of the sleeve a<2> with its port i<2> changes the direction of the jet; the port h<2> in the member g<2> is of such shape as to counteract this effect and also the fall of velocity. due to the expansion of the gases, by increasing the volume of the jet. The jet may be regulated by adjusting the member g<2> through a rod m<2> and levers j<2>, f<2>. The shaft B and rotor R are caused to rotate at different speeds by gearing z<2>, x<2>, w<2>, y<2>, the gears x<2>, w<2> being mounted on a bracket u<2> fixed to a shaft t<2> which may be driven at varying speeds by an electric motor M. By varying the differential speed the number of explosions and therefore the power may be regulated. At starting, gas may be supplied direct to the explosion chamber E through the rotor shaft and past a valve b<3>. If desired, fuel may be supplied through the upper rotor shaft by a conduit m<1>, n<1> to a chamber o, and fed therefrom by an eccentric-driven plunger t<1> to a spray nozzle h<1> in the explosion chamber. The exhaust gases may be used to generate steam for use in a steam turbine; the heat of the hydraulic fluid may be used to heat feed water. Two units may be mounted on a single horizontal shaft and a single compressor may supply both units.
Patent GB-362204-A (GB)
Title: The manufacture of a substitute for amyl alcohol
IPC: C07C45/66
Filed: 1931-01-07
Abstract: Methyl isobutyl ketone and methyl isobutyl carbinol are obtained by a process comprising the following three stages, viz.: (1) condensation of acetone to produce diacetone alcohol, (2) dehydration of the diacetone alcohol into mesityl oxide, (3) hydrogenation of the mesityl oxide into methyl isobutyl ketone and carbinol.  Stages 1 and 2 are described in Specifications 356,609 and 361,667, [both in Group IV], respectively.  The third stage may be carried out either in vapour or liquid phase, using as catalysts either precious metals (platinum or palladium), or non-precious metals such as nickel or copper, with or without the admixture of promoting oxides.ALSO:Methyl isobutyl ketone and methyl isobutyl carbinol are obtained by a process comprising the following three stages, viz.: (1) condensation of acetone to produce diacetone alcohol, (2) dehydration of the diacetone alcohol into mesityl oxide, (3) hydrogenation of the mesityl oxide into methyl isobutyl ketone and carbinol.  Stages 1 and 2 are described in Specifications 356,609 and 361,667 respectively. The third stage may be carried out either in vapour or liquid phase, using as catalysts either precious metals (platinum or palladium), or non-precious metals such as nickel or copper, with or without the admixture of promoting oxides.
Patent GB-920277-A (GB)
Title: A process for the production of photographic silver images
IPC: G03C5/58
Filed: 1960-01-07
Abstract: 920,277. Photographic materials and processes. AGFA A.G. Jan. 7, 1960 [Jan. 10, 1959], No. 628/60. Class 98 (2). A photographic silver halide emulsion layer containing not more than 0.1 g. of silver per square metre is exposed and developed in the presence of a developing agent, a silver halide solvent and a silver salt addition to that contained in the emulsion, or a silver salt complex formed from the silver halide solvent and the additional silver salt, so as to produce an image in which at least<SP> 2</SP>/ 3  of the silver is supplied by the additional silver salt or complex therefrom. The additional silver salt may be supplied from a separate conventional silver halide emulsion layer which, together with the exposed material, may be wetted with a developer solution containing a silver halide solvent and thereafter the layers are pressed into contact. Alternatively, the two layers may be coated one on the other. In Example 3, the exposed silver halide emulsion is processed by dipping it first into a solution of sodium thiosulphate to which silver chloride has been added, and then into a conventional developer. In Example 4, the developing agent is incorporated into the silver halide emulsion layer and the exposed material is developed with a sodium thiosulphate solution in which silver chloride has been dissolved and to which sodium sulphite and caustic soda have been added. Direct positives are prepared by first uniformly fogging the silver halide emulsion to give silver nuclei. Thus, in Example 5, silver nitrate is added to a gelatin solution and forms silver chloride by reaction with the inherent sodium chloride in the gelatin. The solution is fogged by exposure to light, o-nitrobenzyl pyridinium chloride is added and the emulsion cast on a support. The exposed material is processed according to the invention to give a direct positive. Specifications 466,244, 493,455. 509,927, 519,895, 667,206, 672,844, 748,681 and 767,968 are referred to.
Patent GB-376710-A (GB)
Title: Improvements in the pistons of internal combustion engines
IPC: F16J1/02
Filed: 1931-01-08
Abstract: 376,710. Pistons. DARCHE, A. A. A., 5, Rue Michelet, Algiers. Jan. 8, 1931, No. 686. Convention date, Jan. 23, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 122 (i).] The resistance of a piston skirt on the side subjected to maximum thrust due to the inclination of the connecting-rod, is increased by the provision of one or more longitudinal or transverse ribs, or by increasing the skirt thickness, or by a combination of these methods.
Patent GB-588001-A (GB)
Title: Improvements in and connected with conveyor and carrier mechanism for use with plating baths or the like
IPC: B65G49/04
Filed: 1945-01-09
Abstract: 588,001. Pickling and tinning. ELECTRO-CHEMICAL ENGINEERING CO., Ltd., and SMART, A. Jan. 9, 1945, No. 710. [Class 82 (ii)] [Also in Groups XXX and XXXVI] Apparatus for use in a plating or pickling process for conveying articles from bath to bath comprises a frame or beam suspended from two or more endless chains arranged in rectilinear formation whereby this frame is raised and lowered and traversed horizontally, the frame having means for automatically engaging containers or carriers for the articles to be treated and also for automatically disengaging therefrom whereby it may elevate simultaneously two or more carriers from their respective baths and then deposit them in adjacent baths. In the embodiment shown in Figs. 1, 4, the frame b is suspended from endless chains c driven by an electric motor d and is provided with hooks b<SP>1</SP> which on the upward movement of the frame engage parts a<SP>2</SP> of handles a<SP>1</SP> on the carriers a for the treated articles to remove them from a bath. During the subsequent movements of the frame the carriers are traversed forwardly over adjacent baths and then lowered to be deposited in them. Continued lowering of the frame effects disengagement of the hooks from the carrier handles and they are then traversed rearwardly to engage under the handles of other carriers. The chains c each pass round four sprockets c<SP>1</SP> one of which is adjustably mounted for tensioning purposes. In the embodiment shown in Fig. 2, each chain passes over two sets of four sprockets.
Patent GB-500074-A (GB)
Title: Improvements in and relating to electric cable sheathings
IPC: H01B7/22
Filed: 1938-01-10
Abstract: 500,074. Cables. WOLFER, F. Jan. 10, 1938, No. 749. Convention date, Jan. 9, 1937. [Class 36] A watertight cable sheath comprises two or more layers 3, 4, 5 of flexible metal band windings and intervening waterproof sealing layers 6, 7, the metal bands being wound helically in the same direction in open, abutting or overlapping turns, one metal band winding 3 being in direct contact with the insulation 2 and the metal band winding of each other layer covering the gap, butt joint or overlap of the winding of the layer immediately beneath it, and the sealing layers being in watertight contact with the windings on either side thereof. Preferably, the waterproof sealing layers 6, 7 form a closed covering between the layers 3, 4, 5. The metal bands are provided with central grooves or corrugations 9 lying opposite the gaps of the next layers and grooves 10 are provided for engagement of the bands of adjacent layers. The sealing layers may be of metal, e.g. lead or solder, or of a non-metallic material, e.g. asphalt, asphalted paper, layers of paper and compound polyvinyl chloride or a polymerized acrylic acid ester; for instance, the layer 6 may be of polyvinyl chloride and the layer 7 of asphalted paper. The windings 3, 4, 5 may be of aluminium, iron or steel or they may be covered with or provided as a deposit on paper or artificial resin.
Patent GB-425786-A (GB)
Title: Improvements in card filing cabinets
IPC: G06K21/02
Filed: 1934-01-09
Abstract: 425,786. Card indexes. McVICKER, J. W., Beaumont, Weaverham, Cheshire. Jan. 9, 1934, No. 753. [Class 146 (i)] In a filing-cabinet for vertical index cards, the cards are supported on two stationary longitudinal rails fixed to the cabinet, and when the drawer is pulled forward each card or card holder is adapted to drop off the rails on to a platform mounted on the drawer between the rails, to expose the top of the succeeding card, and to be lifted by the raising of the platform to permit the closing of the drawer. The platform C, Figs. 3 and 4, comprises two plates C<1> supported by hinges c, the pins of which pass into the front and back of the drawer B, and by links d<3> pivoted to the ends of a two-armed lever d<1> which can be turned by a handle D to move the edges of the platform above or below the rails a carried by the cabinet A. The drawer B is adapted to run on rollers b<1>, b<2> and is provided with rails h<1>, h<2> on which are mounted slotted slides H for metal separating plates G. One or more cards F are placed between each pair of plate G, and the cards are divided into sections by members K provided with set-screws k to engage the top rail h<1>. As the drawer is pulled forward the cards F and plates G drop off the rails on to the platform C. In this position the drawer cannot be pushed back because a pawl e on the platform engages a rack E on the cabinet. When the handle D is turned to raise the dropped cards, the pawl is lifted out of engagement. The cards between a pair of plate G are graduated in height so that the top margins are visible. A bar b3 across the front of the drawer indicates the index marking on the cards.
Patent GB-578439-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P7/34
Filed: 1943-01-15
Abstract: 578,439. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 15, 1943, No. 760. Convention date, Jan. 22, 1942. [Class 38 (iv)] [Also in Group XXXVII] A hoist motor 10 is supplied from a generator 12 coupled to a flywheel 13a and excited by an armature reaction machine 14. Forward and reverse fields 14d, 14e on the exciter are energised according to the movement of a potentiometer type controller 15 from its mid " off " position, and the energisation is opposed by injecting through a rectifier 16 a voltage derived from the terminals of the motor so as to maintain constant speed irrespective of heavy load and consequential slowing down of the flywheel set 12, 13a. The generatormotor current is limited to a maximum by an opposing field 14g energised through rectifiers 24 or 25 when the voltage drop across the commutatory fields 10b, 12a exceeds that across a potentiometer 20, the drop across which can, in an emergency, be increased by closing a button 32.
Patent GB-554420-A (GB)
Title: Improvements in or relating to tables or the like having hinged legs
IPC: A47B1/04
Filed: 1942-01-20
Abstract: 554,420. Stays for hinged articles. DUFF, J., and DUFF & SONS, Ltd., J. Jan. 20, 1942, No, 802. [Class 65 (i)] In a table &c. with hinged legs &c. the legs are locked in open position by stays 7, hinged to the legs and carrying bars 8 engaging wedgeshaped recesses 10 in fixed abutments 9 under the table, against which they are locked by turn buttons 12. The latter may have slight longitudinal play on their pivots.
Patent GB-921347-A (GB)
Title: Improvements in or relating to audio-frequency pulse receivers
IPC: H04Q1/446
Filed: 1962-01-09
Abstract: 921,347. Voice-frequency receivers. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 9, 1962 [Jan. 12, 1961], No. 809/62. Class 40 (4). In a receiver for audio-frequency pulses comprising a 2-stage transistor amplifier 14, 15 and resonant circuits 18, 19, two A.G.C. circuits are provided in which the output of 15 is amplified and rectified to charge capacitors 29, 36 which control a damping network 3 through diodes 31, 38. The first circuit 17 is responsive only to the signalling frequencies and is relatively slowacting, while the second 24 which provides less amplification, being connected across a resistor 22 in the emitter circuit of 15, is quick-acting and is designed to suppress interference pulses of high intensity and short duration.
Patent GB-819913-A (GB)
Title: Improvements in shut-off devices for liquids, gases, vacua and the like
IPC: F16K3/28
Filed: 1956-01-10
Abstract: 819,913. Stop valves. RHEINISCHES METALLWERKE G.m.b.H.. and KNOTT, T. Jan. 10, 1956; No. 860/56. Class 135. A stop valve comprises a closure member 11  which tapers slightly towards its free end and.is guided for movement perpendicular to the direction of a through passage 12 in the valve housing 10 so as to engage a correspondingly tapered recess 13 extending below the passage 12, and a covering 23 for the closure member of flexible material, e.g. a synthetic plastic, such covering having a contiguous tubular extension 25 adapted to be deformed by a number of concertina pleats 30 and being clamped at its  edge to the housing 10. The extension 25 is clamped by a cover 15 to a lateral extension 14 of the housing 10. The cover 15 supports a rotary screwed spindle 21 prevented from axial movement by a collar 18. The closure member 11 and an extension 22 engaging the spindle'21 are prevented from rotating by known means. The troughs and crests of pleats of the extension 25 may be thickened as at 29, 30. Alternatively or additionally such troughs and crests may have metal or other reinforcing rings 31.
Patent GB-710197-A (GB)
Title: An improved method for the construction of footwear and footwear made in accordance with said method
IPC: A43B1/00
Filed: 1952-01-11
Abstract: A sole and a hollow heel are made in one piece by placing a suspension of leather fibres in a liquid vehicle, e.g. water, into an accretion die, accreting fibres from the suspension to form a layer of fibres, removing the blank so formed from the die, drying it and pressing it in a final shaping die.  The pressure in the final shaping die may be applied by apparatus including a hollow resilient member which expands the hollow heel to its final shape. After formation of the blank by accretion, and before it is removed from the accretion die, a portion of the blank may be shielded, a second suspension introduced into the die, and an additional layer of fibres accreted on to the first layer: or this additional layer may be added in another accretion die.  Before final shaping, colouring matter or graining may be applied to the blank.  After final shaping the hollow heel may be filled with wooden composition or other filler.  The suspension of leather fibres may contain rubber latex, synthetic resins, wax &c.  Other shoe parts may be secured by sewing, nailing, cementing &c.
Patent GB-778587-A (GB)
Title: Improvements in or relating to load hauling trailer structure
Inventor: KLING ROBERT W
IPC: B60P1/56
Filed: 1956-01-10
Abstract: 778,587. Dumping vehicles. ATHEY PRODUCTS CORPORATION. Jan. 10, 1956 No. 882/56. Class 108(1). A self-supporting structure for a dumping semi-trailer comprises vertical side walls 25 reinforced by angles 34, and channels 16, 17, and sloping side walls 26 reinforced by channels 32 and supporting at their lower edges by means of hinges 23, 24 a pair of bottom doors 20, 22. The front wall comprises an upper part 43 and a lower part 42 welded to opposite sides of a transversely disposed torque tube 44 to which is also welded the box-section goose-neck 14. Gusset plates 63 reinforce the connection to the goose-neck and the load is distributed to the side walls of the trailer by gussets 46 welded to reinforcing plates 45 secured to the side walls 25. Transverse trusses 54 and 55 are also provided between the side walls.
Patent GB-276221-A (GB)
Title: A method of controlling the saturation temperature of gases and apparatus therefor
IPC: F24F3/14
Filed: 1927-01-11
Abstract: 276,221. Carrier Engineering Co., Ltd., and Groom, S. L. Jan. 11, 1927. Air and gases, moistening.-Dehumidification apparatus in which the saturation temperature of air or gases is controlled comprises a chamber 1 having an air inlet 4 and outlet 5 and spray pipes 2, 3, supplied with water which is continuously recirculated from the base of the chamber. Diffusing and eliminator plates 7, 8, are also provided. A pump 12 circulates the water through a cooling tank 14 in which a coil 16 supplied with cold brine or the like is located. A thermostat 20 in the outlet 5 is connected by an air pressure pipe 21 with a control valve 22 whereby more or less brine is passed to the coil 16 according to variations in temperature of outgoing air. In a modification the water is cooled by passage through a coil within an evaporator of a refrigerating system and the thermostat controls the degree of cooling by regulating the supply of cold water to the condenser of the system, or the rate at which the refrigerant is withdrawn from the evaporator. Another arrangement provides for the cooling of the circulating water by the addition to the tank 10 of cold water from an outside source. A variable quantity of this fresh supply is admitted through a control valve governed by the thermostat to a space which is separated by a weir from the main part of the tank and from which the pump draws its supply. The tank is separated by a slightly higher weir from an outlet space from which excess water may be run to waste or to a refrigerator. In a modified plant a three-way valve operated by the thermostat and with a connection to the tank is interposed between the additional supply and the pump. Specifications 269,714, 273,069 and 276,214 are referred to.