baber/WOPTO huggingface dataset:
Patent GB-874339-A (GB)
Title: Solubilization of titaniferous iron material
IPC: C22B34/12
Filed: 1960-02-02
Abstract: A titaniferous iron material such as an ore, concentrate or slag is reacted with concentrated sulphuric acid by first reacting an increment of the material and the sulphuric acid in the bottom of a reactor to form a porous solidified heated mass, and thereafter feeding to the reactor, either as separate streams or premixed, incremental amounts of the titaniferous material and concentrated sulphuric acid to form a thin fluid layer on top of the porous mass, which layer in reacting further builds up and heats the porous solidified mass; the heated mass serves to initiate the reaction between the acid and the incoming titaniferous material.  After the addition is complete the mass is cured and subsequently dissolved in water to form a solution of titanyl sulphate and sulphuric acid.  The amount of sulphuric acid employed, which is normally of 82-95% concentration, may be such as to react with all the iron values and to produce a H2SO4/TiO2 ratio of 1.7 to 2.4.  The rate of addition of sulphuric acid and titaniferous material is maintained such that the evolution of stack gases is substantially constant, for example in a range of 5,000 to 10,000 cubic feet per minute. The sulphur trioxide product is collected and recovered.  The solidified mass after curing, for example for two hours, may be leached with 7% sulphuric acid solution at 75 DEG C.  Specification 288,569 is referred to.
Patent GB-1045363-A (GB)
Title: Improvements in or relating to a refrigerated enclosure
Inventor: BECKWITH STERLING
IPC: A47F3/04
Filed: 1964-01-29
Abstract: 1,045,363. Mounting electric heating elements in refrigerators. DUAL JET REFRIGERATION CO. Jan. 29, 1964, No. 3824/64. Heading H5H. [Also in Division F4] Electric heating elements are provided at the inlets of air curtains across the access opening of a refrigerator to prevent frosting. The innermost curtain has a heating element 52 comprising heating resistances 56 inside a tube 54 provided with a helical fin 58. The element 52 normally operates at 55 or 110 volts but may operate at 220 volts during a defrosting cycle. Further electric heating elements 62 are supported by angular members 64 inside tubes 48 and 60.
Patent GB-918715-A (GB)
Title: Shaft encoder apparatus
IPC: H03M1/00
Filed: 1961-02-01
Abstract: 918,715. Electric selective signalling systems. BENDIX CORPORATION. Feb. 1, 1961 [Feb. 16, 1960], No. 3836/61. Class 40 (1). A device for the digital indication of the orientation of a rotatable element includes a disc carrying a circular series of counting marks distributed in accordance with a desired trigonometrical function, e.g. sine, at least one pick-up member co-operating with the marks to emit pulses towards a counter, and means for automatically reversing the operation of the counter and/or the algebraic sign indicated for the counter contents in dependency on the quadrant in which the pick-up member is positioned with respect to the series of counting marks. A shaft 10, the angular displacement # of which is to be measured, carries a pulse wheel 32, while a coaxial shaft 11 carrying pulse wheels 14, 24, is driven continuously by a motor 12. A battery 20 places an electric potential on conducting discs 15, 25, 34 of the pulse wheels, via brushes 21, 30, 37. When a brush contact 31 engages a contact 29 on disc 27, a flip-flop 54 is changed over, energizing one side of " AND " gates 41, 42 and zeroizing a reversible " sine " counter 46; also a " cosine " counter 47 is set to " one." Subsequently, as each contact 19 passes brush 22, a pulse representing a uniform change in the sine of the angle of displacement is passed through gate 41 and fed to the sine counter 46. A second brush 23, displace 90 degrees from brush 22, simultaneously feeds pulses to the cosine counter 47 via gate 42. A further brush 66, engaging one of four contacts 65 on the disc 16 operates a flip-flop 68 to energize alternately conductors 69, 70. Potential on conductor 69 sets the sine counter 46 to " count up " and the cosine counter 47 to " count down " and potential on conductor 70 has the reverse effect. The algebraic sign of the contents of each counter is indicated by flip-flops or relays 71, 72 which are set by a flip-flop 74 via a pulse-forming network 75 &c., and indicate the quadrant in which the angle # lies. A brush 38 on an arm 39 carried by the motor-driven disc 26 detects the angle # when it passes over a contact 36 and delivers a pulse via brush 40 which restores the flip-flop 54, cutting off the supply of pulses to counters 46, 47 at the " AND " gates 41, 42. A signal is also supplied to operate transfer control apparatus TC and transfer the contents of the counters for utilization. In a second embodiment lamps and photocells co-operate with slits in the various discs to achieve the same results.
Patent GB-913802-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B61B10/04
Filed: 1960-02-03
Abstract: 913,802. Chain-driven conveyers. KING Ltd., GEO. W. Jan. 30, 1961 [Feb. 3, 1960], No. 3855/60. Class 104 (2). In a conveyer system in which load-carrying trucks 13 are moved along a track 10 by an endless driven chain 12 disposed beneath the truck 13 each truck 13 is provided with a pivotally mounted lever 15 movable into and out of an operative position about an axis extending transversely to the direction of movement of the trucks 13 and the lever 15 has pins 17, 18 to positively couple the endless chain 12 to the lever 15. In the arrangement shown, the foremost pin 17 engages within a horizontally disposed chain link and a pair of rearwardlydisposed pins 18 engage, one on each side, a vertically disposed chain link. The front of the lever 15 is upwardly and forwardly inclined to engage a fixed ramp 19 provided on the rear of the trucks 13 to lift the lever 15 out of driving engagement with the chain 12 should trucks 13 abut one another. Ramps or cams may also be provided along the track to lift the lever 15 out of driving engagement with the chain 12. A spring may be associated with the level 15 to hold, once the spring has passed a dead-centre position, the lever 15 in the inoperative position. With such an arrangement the ramp 19 is arranged to depress the lever 15, when a foremost truck is moved, to move the spring past its dead-centre position so as to snap the lever 15 into its operative position. Each truck may be provided with strippers to prevent upward movement of the chain 12 from a " V "-shaped channel 11. Each truck may also be provided with depending brackets which co-operate with the channel 11 to prevent the trucks 13 lifting. Alternatively the tracks 10 may be provided with inturned flanges overlying the tops of the truck wheels 14.
Patent GB-306686-A (GB)
Title: Improvements in or relating to the knife-edge bearings of weighing apparatus
IPC: G01G21/04
Filed: 1928-02-08
Abstract: 306,686. Avery, Ltd., W. & T., and Taylor, J. W. Feb. 8, 1928. Bearings. - To prevent chipping of the ends of the knife - edges of weighing apparatus particularly during the raising or the knife-edge 3 from its bearing block 4 or re-engagement therewith, resilient members, for example, steel blades 6, are arranged to maintain themselves in engagement with the ends of the knife-edge, both when the knife-edge is resting on, and is raised from the bearing block. The steel blades may be secured by the usual screws 7 utilized for securing the rib plates 8 which are bent outwardly to allow freedom of movement to the resilient blades. Instead of resilient blades, slidable plungers maintained in contact with the ends of the knife-edge by springs may be used.
Patent GB-285016-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1928-02-08
Abstract: 285,016. Electrolux, Ltd., (Assignees of Platen-Munters Refrigerating System Aktiebolag). Feb. 8, 1927, [Convention date]. Refrigerating, absorption machines for; icemaking.-In a continuous-cycle refrigerating system containing inert gas, a part of the refrigerant is evaporated in a low-temperature evaporator V and the remainder in a main evaporator H, the first being used for ice-making or like purposes and the other for cooling a cabinet or other external part. The vapour passing from the generator K through a rectifier W may be directed through a divided condenser, one part C<1> of which delivers condensate to the low-temperature evaporator and the other C<2> to the main evaporator. The inert gas flows from the absorber A through a pipe 3 to both evaporators, and the gas mixture returns to the absorber through pipes 4, 5. The ice-making evaporator may comprise a coil supporting ice-boxes as shown, or a shell hav. ing clamped thereto a casting provided with re. cesses for ice-drawers. The parts of the condenser are dimensioned to deliver the necessary proportions of condensate, and the ice-making evaporator is insulated from the main evaporator. as by being enclosed in a special compartment of a cooling-cabinet. In another form, a single condenser delivers to the low-temperature evaporator, from which unevaporated refrigerant flows with the gas mixture to the main evaporator below it. The main evaporator may be provided with a brine container or be fitted with radiating gills.
Patent GB-485406-A (GB)
Title: Improvements in and relating to sheet feeding devices for printing machines and the like
IPC: B65H1/18
Filed: 1937-02-12
Abstract: 485,406. Feeding sheets. LINOTYPE & MACHINERY, Ltd., and ROWLANDS, T. Feb. 12, 1937, No. 4238. [Class 100 (i)] In a sheet-feeding device for printing- machines in which the sheet-separating devices are mounted in a box a, means are provided for automatically adjusting the position of the box in relation to the pile under control of a member which periodically contacts the pile, e.g. a lifting foot, the blower foot mechanism, or as shown the combing roller d. This roller is moved to and from the pile periodically by a cam acting on an arm g integral with the pivotal mounting of the wheel which is connected by a link k to a lever i adapted to control the position of stops u. When the wheel d engages the pile, the stops u are in such a position as to prevent the inward movement under spring action of a pair of links o when a cam r permits. If, however, the box a needs raising or lowering, one of the stops u permits one of the rods o to be moved, and a pawl v engages a ratchet y and operates screw-mechanism for raising or lowering the shaft b which supports the box a. Specification 462,794 is referred to.
Patent GB-396801-A (GB)
Title: An improved rotary pump
IPC: F04C2/36
Filed: 1932-02-12
Abstract: 396,801. Rotary pumps. KLEIN, W., 18, Schillerstrasse, and SCHMIDT, B., 6, Rosenweg, both in Esslingen, Wurtemberg, Germany. Feb. 12, 1932, No. 4242. Convention date, Feb. 12, 1931. [Class 110 (ii).] A rotary pump comprising a rotating piston a provided with arms which co-operate with apertures in a rotating abutment b is provided, in the side walls of the casing, with two relief ports m, n connecting the spaces between the piston arms and the abutment in which pressure is set up with the outlet side of the pump and two relief ports o, p connecting the spaces between the piston arms and the abutment in which a vacuum is created with the inlet side of the pump.
Patent GB-265639-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal cyanides
IPC: C01C3/00
Filed: 1926-02-15
Abstract: 265,639. Deutsche Goldund Silber- Scheideanstalt vorm. Roessler and Freudenberg, H. Feb. 15, 1926. Hydrogen.-The hydrogen liberated in the production of alkali cyanide by the reaction of ammonia upon a mixture of an alkali metal and carbon is purified for instance by washing with water and drying with lime and is used with nitrogen for the known ammonia synthesis with the aid of pressure and a catalyst. The ammonia is then used again for the production of the cyanide.
Patent GB-431209-A (GB)
Title: Improvements in manufacturing separable fastener devices
IPC: A01B9/00
Filed: 1934-02-09
Abstract: 431,209. Casting sliding-clasp fasteners. MARINSKY, D., 1515, Grand Concourse, New York, U.S.A. Feb. 9, 1934, No. 4388. Convention date, March 16, 1933. [Classes 83 (i) and 83 (ii)] [See also Group V] A stringer for a sliding-clasp fastener is made by introducing plastic material or molten metal through a nozzle into a die all these parts being supported in firm engagement and the mould parts holding a tape or other strip between them. A strip 19 of fabric, which may have been proofed against fire, is held by grippers 22 while water-cooled mould halves 11, 12 and a core 15 advance to form a cavity of the required shape into which molten material is forced by means of a plunger 28 in a chamber 27, which is submerged in a pot 23 on rails 25 and electrically heated at 29. The mould halves are then withdrawn, the grippers 22 retracted, and the strip advanced the desired distance by the core 15 which is then withdrawn to allow the mould to close for the next operation. A pin 17 is adapted to form holes 20 in the strip 19 to act as keys for the molten material. The core may have a projection 15<a>, Fig. 7, to reduce the volume of material used. In another modification the elements 21 are cast on a metallic or other wire, cord, cable, &c. The material moulded may comprise zinc or an alloy thereof, thermoplastic material, or one having a cellulose or rubber base. Specification 400,958, [Group V], is referred to.
Patent GB-785718-A (GB)
Title: Improvements connected with stay assemblies for weighing machines
Inventor: BRECKNELL HAROLD LESLIE
IPC: G01G21/24
Filed: 1955-02-15
Abstract: 785,718. Weighing apparatus. BRECKNELL; Ltd., C. W. Feb. 13, 1956 [Feb. 15, 1955], No. 4402/55. Class 143 In a weighing scale a flexible metal stay 3 is pivoted to the leg 1 and the scale frame 2 for self aligning movement in a horizontal plane. The ends of the stay are clamped between pairs of plates 5 by hollow rivets 6 through which extend the shanks 7b of screws 7 which secure the stay to the leg and frame and which are provided with spring washers 9. The middle section of the stay is clamped between plates 4 by rivets 10.
Patent GB-813916-A (GB)
Title: A valve diaphragm, preferably for pilot-valve controlled diaphragm valves for fluids
IPC: F16K31/40
Filed: 1956-02-13
Abstract: 813,916. Valves. CLAUSEN, M., [trading as DANFOSS VED INGENIOR M. CLAUSEN]. Feb. 13, 1956 [Dec. 23, 1955], No. 4433/56. Class 135. A valve diaphragm 7, e.g. for a valve controlled by a pilot valve 13, consists of at least two thin layers 16, 17 of flexible durable synthetic plastic sheet having a circular central zone co-operating with a circular valve seat 5 and an outer zone, and at least one supporting element 18 between the layers in the central zone. The layers may be of polytetra fluorethylene and are welded or glued together around a supporting element of rubber, silicone rubber or other resilient plastic. The diaphragm may be corrugated and may have an annular supporting element co-operating with an annular seat and perforated at its centre. As shown the diaphragm valve is controlled by a pilot valve 13 actuated by a solenoid 15 controlling communication between diaphragm chamber 9 and a downstream connection 12, the chamber 9 communicating upstream via a diaphragm or casing aperture 10, 11 respectively.
Patent GB-907839-A (GB)
Title: Plate type heat exchangers
Inventor: HRYNISZAK WALDEMAR
IPC: F28D9/00
Filed: 1958-02-11
Abstract: 907,839. Plate-type heat exchangers. PARSONS & CO. Ltd., C. A. Feb. 4, 1959 [Feb. 11, 1958], No. 4463/58. Class 64 (3). A heat exchanger comprises a plate assembly of cylindrical form consisting of two plates 1, narrow side walls 3, 3a, wide side walls 2, 2a, and corrugated strips 4 arranged in the manner shown in Fig. 9, the strip being then wound on to a cylinder 6 to form an annulus. Radially extending portions 10 at each end face of the annulus are thereafter cut out to a depth equal to the width of the narrow side walls 3, 3a so that alternate radially spaced channels for one of the heat exchanger fluids formed between adjacent plates 1 open out on one side of the annulus and the intermediate channels through which the other fluid flows, open out to the other side of the annulus. Slots 11 extending almost to the corrugated plates 4 are formed to receive the outlet headers 12, 13 for the respective fluids. The arrows in Fig. 6 show the resulting flow path for one of these fluids in this case air, which enters the heat exchanger at one side through the openings formed by alternate cutaway portions 10, passes through corrugations of the sheet 4 to spaces 17 from which the air is diverted through other corrugations of the sheet 4 into the air outlet headers 12 located on the air inlet side of the heat exchanger. On the other face of the annulus, heating gas flows similarly from openings formed by cut-away portions (similar to the cut-away portions 10) through the intermediate passages in the annulus to gas outlet headers 13. An outer sealing band 14 (Fig. 8) is formed with apertures 15 in alignment with the air and heating gas outlet headers 12, 13. Specification 823,951 is referred to.
Patent GB-349091-A (GB)
Title: Improvements in or relating to motor cars or like vehicles
IPC: B60G11/08
Filed: 1930-02-10
Abstract: 349,091. Motor vehicles. MACKENZIE, D. G., 388, Olivier Avenue, Montreal, Canada. Feb. 10, 1930, No. 4505. [Classes 79 (ii) and 79 (iii).] The power unit of a motor vehicle, together with the rear axle and rear wheels thereof, is adapted to be attached as a unit to a single central member which comprises the chassis frame. In the construction shown an engine 1 with an inclined crankshaft, a gearbox 2, and a differential housing 3 are all detachably bolted together to form a unit and are mounted by means of two transverse springs 4, 5 on the rear driving wheels 43, the whole assembly being detachably secured by means of a socket 6 to a single tube 7 forming the chassis frame. The springs 4, 5 are arranged one above and in front of the other as described in Specification 349,090, and the frame construction is also described in that Specification. The differential gearing 21 drives the wheels through shafts 19, 33 and flexible joints 25, 39, the latter joint being arranged outside the plane of the wheel. A three-armed spider 38 is splined on the shaft 33 and its arms are bolted at 70 to flexible discs 39, 40 connected by three bolts 41 to a flanged hub member 46, the bolts 41 being equally spaced between the bolts 70. The wheel proper is secured to the hub by the bolts 41 and the hub is mounted in bearings in a member B to which the springs 4, 5 are secured. Brake drums 18 are keyed to the shafts 19 and serve as the connecting means to the flexible joints 25. The differential gearing can be readily removed after withdrawing shafts 19, 33 and removing nuts 53. The shafts can be withdrawn by undoing a nut 28, releasing a bearing 29 which, acting on a collar 22 keeps the shaft 19 in place, and removing the nuts from the bolts 41. A spline connection is provided between the engine and gear-box, and between the gear-box and differential gear, so that by undoing nuts 51, 52 the engine and gear-box can be separately removed. In a modification the engine has a horizontal tranverse crankshaft driving a substantially vertical shaft through bevel gearing arranged midway of the engine crankshaft. Specification 344,179 is also referred to.
Patent GB-757116-A (GB)
Title: Pumps and engines
IPC: F04B7/04
Filed: 1955-01-03
Abstract: 757,116. Fluid-pressure engines; valve gear. MEUX, A. De L. De. Jan. 3, 1955 [Jan. 5, 1954], No. 4546/54. Classes 122(2) and 122(3) [Also in Group XXVIII] A fluid-pressure engine comprises two pistons 20, 21 actuated by a crankshaft 16, the piston 20 controlling the flow of fluid through the port 12 and having a passage 22 co-operating with a port 11 and controlling the flow of fluid between the working space 25 and the port 11. The throw of the crank 18 connected to the piston 20 is shorter than that of the crank 19 connected to the piston 21 and the two cranks are spaced approximately 90 degrees apart. The piston 20 is connected to two cranks 18 by a pair of connecting rods 28 connected to pins 27 carried by the piston and extending through slots 26 in the cylinder 10.
Patent GB-593492-A (GB)
Title: An improved collapsible table and attachment means therefor
IPC: A47B5/04
Filed: 1945-02-23
Abstract: 593,492. Bracket tables &c. STUART, H. D., and CASTLES, R. J. Feb. 23, 1945, No. 4624. [Class 52(v)] A folding bracket table or shelf 1 for attachment to a wall, desk, dresser, cupboard &c. has a stop member 8 pivoted on a pin 6 at its rear edge adapted to bear against the wall &c. and engage beneath a fixed bar 3 spaced from the wall when the table is in a horizontal position. On turning the table upwardly about the pivot 6 into a vertical position it may be slid downwardly between the wall and the bar 3 and supported by a stop 12 resting on the bar. As shown the bar 3 is fixed between vertical flanges 10 of a member 4 pivoted at 14 to a dresser 13 or other support with a friction washer 15 so that the table can be turned to a suitable angle for reading e.g. over a bed.
Patent GB-956476-A (GB)
Title: Spring-loaded cover mechanism for pyrophoric lighters
IPC: F23Q2/16
Filed: 1961-02-08
Abstract: 956,476. Pyrophoric lighters. E. KORNER. Feb. 8, 1961 [Feb. 8, 1960], No. 4723/61. Heading F4F. The burner cover 1 of a pyrophoric lighter is locked in the closed position by a toggle linkage 15, 16 whilst rotation of a finger actuated member 5 compresses a spring 7, until a pin 21 on the member 5 engages one end 16a of the link 16 to unlock the toggle linkage and allow the spring 7 to open the cover 1 and rotate a friction wheel 3. The spring 7 is mounted on a rod 6 carrying a rigid abutment 9 and a sliding abutment 8 connected by a pin 24 to the member 5. A spring 14 returns the mechanism to its original position when the member 5 is released, a spring 24 ensuring that the toggle linkage 15, 16 is restored to the locked position against a stop 13. In another construction the spring 7 may be arranged above the toggle linkage to pull instead of push open the cover 1. 1.
Patent GB-696805-A (GB)
Title: Improvements in electric cells, for example for storage batteries
IPC: H01M2/12
Filed: 1952-02-22
Abstract: 696,805. Batteries. BUREAU TECHNIQUE GAUTRAT. Feb. 22, 1952 [Feb. 27, 1951], No. 4754/52. Class 53. A part of the cell wall of a storage battery is made of a material which will allow gases to diffuse through it but which is impervious to liquids. Fig. 1 shows a cell having a metal container 1 closed at the bottom by a plate 6 having an aperture 7 above which is a diaphragm 9 made, for example, of polyvinyl chloride or polyethylene and secured in position by a packing ring 11. A grid 8 may be interposed between the diaphragm 9 and plate 6. The cell is otherwise sealed and gases evolved in the normal operation of the battery are caused to combine with the active materials in the accumulator as described in Specifications 677,724 and 685,341, any excess of gas not absorbed by the electrodes diffusing out through the diaphragm 9. Before the cell is sealed the electrodes may first be fully charged the negative electrode being then slightly discharged either by means of an auxiliary electrode or by adding an oxidizing substance to the electrolyte. Fig. 2 shows a modification in which the aperture 7 is replaced by a U-shaped slot 12 forming a tongue 13 in the plate 6 and serving as a safety device. If the gas pressure rises too high the tongue 13 bends and tears the diaphragm 9.