baber/WOPTO huggingface dataset:
Patent GB-677690-A (GB)
Title: Improvements in the production of ferric chloride
IPC: C22B1/08
Filed: 1949-07-21
Abstract: A fluidized bed of a ferric-oxide-containing ore is treated with hydrochloric acid gas to produce ferric chloride at one or more temperatures, the final temperature being high enough to cause the ferric chloride to volatilize and leave the reaction vessel with excess hydrochloric acid gas.  Ores which contain hydrated ferric oxide are preferably first heated at 300-500 DEG C to remove combined water; carbonate and magnetite ores should be roasted under <PICT:0677690/III/1> oxidising conditions at 400-800 DEG C.  As shown, the ore particles varying in size from 1/10 inch to those just passing a 200 mesh per linear inch sieve pass from hopper 8 to refractory lined mild steel vessel 4 divided into two chambers 6, 7 by an imperforate diaphragm 14-16, 19-20 supporting the ore beds, the fluidized particles passing from bed to bed through pipes 21-24. Hydrochloride acid gas at 1-5 p.s.i.g. is led into the upper chamber through pipe 26 at 100-200 DEG C.  Steam, excess acid and a very small quantity of the ferric chloride formed escape through pipe 28. The partially chloridized ore entering chamber 7 is fluidized and fully chloridized by hydrochloric acid gas at 200-700 DEG C.  The chloride vapours, excess hydrochloric acid and steam escape through pipe 33, and may be subsequently treated with steam for the production of ferric oxide as disclosed in Specification 677,645. The methods disclosed in that Specification for the treatment and return to the chloridizing chambers of the hydrochloric acid liberated may also be employed. Two to six times the theoretical amount of hydrochloric acid is employed for the chloridization.  Air, or small quantities of chlorine may be present in the reacting gases. Specification 677,691 also is referred to.
Patent GB-372647-A (GB)
Title: Manufacture of sheets and other articles from cellulose derivatives
IPC: C08L1/08
Filed: 1931-08-21
Abstract: Films or other articles, other than artificial threads, are made from cellulose esters or ethers by working up into the desired article a solution containing a cellulose derivative and, similarly to the process for the manufacture of artificial threads as described in the parent Specification, a condensation product of a polyvinyl alcohol with an aldehyde, as prepared according to Specification 337,806, [Class 2 (ii), Cellulose &c.].  The films &c. have an increased tensile strength, an excellent softness, a greater resistance to creasing, and reduced elongation when wetted p  with water.  In examples, cellulose acetate films are made from solutions in methylene chloride-alcohol and acetone-alcohol containing additions of a condensation product of polyvinyl alcohol and formaldehyde or acetaldehyde.ALSO:Films or other articles, other than artificial threads, are made from cellulose esters or ethers by working up into the desired article a solution containing a cellulose derivative and, similarly to the process for the manufacture of atrificial threads as described in the Parent Specification, a condensation product of a polyvinyl alcohol with an aldehyde, as prepared according to Specification 337,806, [Class 70, Indiarubber &c.].  The films &c. have an increased tensile strength, an excellent softness, a greater resistance to creasing, and reduced elongation when wetted with water.  In examples, cellulose acetate films are made from solutions in methylene chloride-alcohol and acetone-alcohol containing additions of a condensation product of polyvinyl alcohol and formaldehyde or acetaldehyde.
Patent GB-1037209-A (GB)
Title: Burner control apparatus
IPC: G05D11/13
Filed: 1965-06-02
Abstract: 1,037,209. Fluid pressure servomotor systems. ROBERTSHAW CONTROLS Co. June 2, 1965 [June 3,1964], No. 23588/65. Heading G3P. [Also in Division F4] A burner control apparatus comprises a pilot burner 62 supplied initially by a manually operated valve 50 and subsequently by a valve 68 actuated by a rod and tube thermal element 78 responsive to the flame of the pilot burner, and a main burner 16 supplied by a diaphragm valve 18 opened by a pressure differential made by an electrically operated valve 30 actuated by a switch 90, 92 closed by the rod and tube element 78. The rod 82 of the thermal element engages in a detent 72 in a lever 70 pressed upwardly by a spring 74, one end of the lever carrying the pilot valve 68 and the other end engaging an actuator 84 for the switch 90, 92. The diaphragm of the main valve 18 is submitted on one side to the inlet pressure of the fuel and on the other side to the pressure in a chamber 22 connected by a passage 26 to a bleed flow passage 24 containing a restrictor 29 and connected through the electrically operated valve 30 with the outlet side of the main valve 18. The electrically operated valve 30 is actuated by a bimetal heat motor or by a pivoted lever 38 moved by an electromagnet 36 energized by a step down transformer T. In operation a push button 54 is depressed to open the valve 50 and the pilot burner is lit by means of a match. The pilot flame heats the thermal element 78 which therefore pushes the lever 70 downwardly to open the pilot valve 68 and close the switch 90, 92. The push button is then released and the pilot burner is fed through the pilot valve 68. The closed switch 90, 92 energizes the electromagnet 36 which therefore opens the valve 30 to connect the diaphragm chamber 22 to the outlet side of the main valve. The inlet fuel pressure therefore opens the main valve to supply the main burner. A room thermostat RT de-energizes the electromagnet at a predetermined temperature and consequently shuts the main burner.
Patent GB-1508904-A (GB)
Title: Rotary flow meters
IPC: G01F1/10
Filed: 1975-05-30
Abstract: 1508904 Turbine-type flowmeters DANIEL INDUSTRIES Inc 30 May 1975 [30 Sept 1974] 23608/75 Heading F1T The invention relates to an axial flow, turbine type flowmeter in which means are provided to ensure centring of the rotor assembly within the flow-path of the meter housing. The assembly comprises a housing 12 which is bored to provide concentric surfaces 22, 24. A fixed shaft 38 is supported within the housing and a bladed rotor 46 is rotatably mounted on the shaft so as to be rotated by the flow of fluid, the flow being measured by means of a magnetic means 50, 52 carried by the rotor and housing respectively. The shaft 38 is mounted in sleeves 70, 72 each of which is formed with three axially-extending grooves 78, 80, 82 the grooves being formed so that the depth thereof increases towards the rotor. Three support vanes 84, 86, 90 are provided for each sleeve, one vane being mounted within each groove the lower edge of the vanes being of inclined form corresponding to the form of the groove; the outer edge of each vane is formed parallel to the axis and engages the surface 22 (or 24) of the housing. Distance pieces 34, 56 are disposed between the vanes and the rotor at each side of the rotor, the distance pieces abutting against a fixed sleeve 66 mounted on the shaft and on which the sleeve 68 carried by the rotor is mounted. A cap 96 is mounted at one end of the shaft, the other end of the shaft being threaded to receive a nut 102. The parts are assembled as shown, tightening of the nut causing the vanes to move relative to the sleeve members whereby the shaft is positively located centrally of the concentric surfaces 22, 24. The vanes at the right-hand side of the rotor  engage against an abutment 30 on the inner surface of the housing. A ring member 32 having a frustoconical inner surface is disposed between the vanes and the upstream side of the rotor, abutting against an abutment 28, and serves to guide the fluid on to the vanes of the rotor.
Patent GB-712051-A (GB)
Title: Improvements in or relating to axial-flow fluid machines
Inventor: DAVIES DAVID OMRI
IPC: F01D5/06
Filed: 1951-10-10
Abstract: 712,051. Elastic-fluid turbines; axial-flow compressors. ROLLS-ROYCE, Ltd. Oct. 9, 1952 [Oct. 10, 1951], No. 23637/51. Classes 110(1) and 110(3) In axial-flow machines having bladed rotors and stators together with tapping means for drawing off through the rotor drum part of the pressurized fluid flowing in the fluid channel of the machine, the tapping means comprises stator guide vanes 23 which are located radially inwards of the stator blading 11 and are adapted to impart a whirl in the direction of the rotor to the fluid entering the said rotor drum. The guide vanes 23 are brazed to the flanges 20 of the stator blades 11 and to a ring 27. The rotor drum 13 has blade-carrying discs 14 which are splined thereto and separated by a spacer 19 having circumferentially elongated slots 24 for directing the withdrawn fluid into rotor guide vanes 25 carried by the disc 14. The ends of the slots 24 are chamfered so that the walls there-between are inclined. The guide vanes 25 are formed from channel-section strip and are curved so that the flow therebetween is a free vortex whilst the circumferential velocity adjacent the shaft 13 is the same thereas. The vanes 25 are spot welded to discs 28, 29 which have turnedover outer peripheries, the disc 29 being secured to a ring 30 splined to the shaft 13. The vanes 23 make an angle of 80 degrees to the adjacent tangent at their inlet ends and an angle of 48 degrees to the adjacent tangent at their outlet ends and are outwardly concave and inwardly convex. In a modification the convex and concave surfaces of the vanes 23 are outwardly and inwardly facing respectively. In a second modification, the guide vanes 25 are radial to define a forced vortex flow therebetween, the vanes 23 being similar thereto. In a third modification, Fig. 4, the vanes 25 are omitted and the blade-carrying discs are spaced apart by spacer rings 32 through which extend bolts 33, strengthening rings 34 being provided as shown, On a further modification. the axial spacing between a pair of adjacent discs 14 is relatively large compared with the dimension of the slots 24 axially of the machine and the slots 24 are arranged, in the axial sense, substantially symmetrical with respect to the two discs. The ports 22 are also symmetrically disposed with respect to the two discs whereby the central layer of air in the space between the two discs is drawn off with a free vortex motion. Specification 622.181 is referred to.
Patent GB-682480-A (GB)
Title: Improvements in liquid reservoirs
IPC: B60T11/26
Filed: 1950-09-27
Abstract: 682,480. Stoppers &c. COATALEN, L. Sept. 27, 1950 [Oct. 4, 1949], No. 23703/50. Class 125(iii) [Also in Group XXVIII] A reservoir R, which consists of transparent or translucent material such as glass or methyl polymethacrylate, has a threaded closing cap which is formed by the superposition of three walls 5, 6 and 7 having orifices 8, 9 and 10, respectively, formed therein in staggered relationship and constituting air inlets.
Patent GB-337080-A (GB)
Title: Spray drier
IPC: A23C1/04
Filed: 1929-08-02
Abstract: 337,080. Richards, W. F. Aug. 2, 1929. Filtering.-Small dried particles from a spray drier are collected in foraminous bags 20 supported from a rack carried by a rod 23 connected to a vibrating device comprising a piston 25 moving in a cylinder 24. The piston is normally held at the top of the cylinder 24 by a spring 26 but may be reciprocated by a quick intermittent supply and discharge of air to the cylinder, to shake the bags 20 and dislodge the dust collected therein. The ends of the bags are held by resilient rings fitting in recesses 18 in holes 17 in the roof 7, or sleeves may be fitted in the holes 17 having pronged projections to engage the ends of the bags.
Patent GB-345916-A (GB)
Title: Improvements in and relating to rulers
IPC: B43L7/04
Filed: 1930-08-08
Abstract: 345,916. Parallel rulers. HAHN, H., 8, Olbersstrasse, Charlottenburg, Berlin. Aug. 8, 1930, No. 23854. [Class 97 (iii).] A ruler, comprising a casing in which two parallel rollers are mounted, has means for controlling the movement of one of the rollers to enable lines to be drawn at predetermined intervals. In the form shown, one of the rollers 2, which are provided with sleeves 3 of rubber or the like, carries at one end a ratchet wheel 4, engaged by a spring pawl 5 on the casing 1. To enable different ratchet wheels to be placed on the roller the end walls 9 of the casing are made yieldable by slots 10 so that the rollers 2 whose axle pins 6 seat in cups 11 in the walls 9 may be readily removed. Alternatively the walls 9 are rigid with the casing and are provided at one end with bearing cups and at the other with screws.
Patent GB-280506-A (GB)
Title: Improved process and apparatus for maintaining the constancy of the specific fuel consumption in internal combustion engines and for increasing the power of such engines
IPC: F01B7/12
Filed: 1927-09-12
Abstract: 280,506. Graf, O. Nov. 12, 1926, [Convention date]. Driving-gear.-The compression space is varied in accordance with variations in pressure in the induction pipe 2 by connecting the latter by means of a pipe 18 to a cylinder 1. Two pistons 4, 5 in this cylinder actuate through rods 6 - - 9 eccentrics 10, 11 which forms the pivots of a beam driving gear for the main pistons. Adjustable stops 13, 14 limit the movement of the adjusting gear. Specification 278,339 is referred to.
Patent GB-881691-A (GB)
Title: Improvements in or relating to sewing machines with stepper feed
IPC: D05B27/04
Filed: 1960-07-11
Abstract: 881,691. Sewing machines. PFAFF A.G., G. M. July 11, 1960 [July 30, 1959], No. 24058/60. Class 112. Feed by foot, work holding. In a sewing machine a bar imparting lift motion to a feeding foot is arranged telescopically within a presser foot bar. The arm shaft 1 carries an eccentric 2 driving a pitman 3 provided at its free end with opposed blocks 4, 5. Block 4 is slidable in a block 6 carried by an angularly-adjustable shaft 7. Block 5 is slidable in the outer end of an arm 9 journalled on a shaft 11. Arm 9 is connected by a link 13 to one arm of a lever 15, the other arm of which is pivoted to a block 37 which carries the feeding foot 18. Angular adjustment of shaft 1 thereby serves to control the feed advance movements imparted to the feeding foot. An eccentric 19 on shaft 1 drives a pitman 20 coupled to a crank 21 on shaft 11 for oscillating the latter. A crank 23 on shaft 11 is connected by a link 25 to one arm of a bell crank lever 26 pivoted at 27 to a block 28 fixed to the upper end of a tubular presser bar 29. A bar 34, slidable in the latter, carries at its lower end a roller 36 engaged within a forked part of block 37. Bar 34 is biased downwardly by a leaf spring 35 engaging a horizontal bar 33 at the upper end of bar 34. The other arm of lever 26 carries a roller 32 which, at each oscillation of lever 26, engages bar 33 to impart lift movement to the feeding foot. Work trimming. A bracket 24 fixed to crank 23, oscillated by shaft 11, carries a rod 39 slidable in a block 40. The latter is pivotally coupled by a link 41 to a vertical bar 42 slidably mounted in a machine frame. The lower end of bar 42 carries an arm 43 to which is adjustably fixed a worktrimming knife 38. One arm 44 of a lever pivoted at 46 in the machine frame carries an operating knob, and the other arm 45 is coupled by a pin 48 to block 40. Angular movement of the lever thereby serves to move block 40 along rod 39 to vary the strike of knife 38. The latter is immobilized above the work when block 40 is aligned with shaft 11.
Patent GB-966422-A (GB)
Title: An adjustable girder for supporting forms
IPC: E04G11/56
Filed: 1962-06-22
Abstract: 966,422. Telescopic girders for supporting shuttering. HICO CORPORATION OF AMERICA. June 22, 1962 [June 29, 1961], No. 24075/62. Headings E1K and E1S. A telescopic girder for supporting shuttering comprises an outer box section part constructed of two opposed channels 4, 5 the edges of the flanges of the channels overlapping and being welded together at 9 and the upper channel 4 being cambered so that the top surface of the girder will be flattened under the weight of the concrete. The inner part is of 1 section having the upper flanges 12, Fig. 4, and the upper part of the webs 14 thickened and the flanges 12 inclined upwards. The inner part is also cambered. The inner and outer parts are locked together by an externally threaded tube 16 engaging a nut 17 resting on the bottom of the box girder.
Patent GB-462002-A (GB)
Title: Improvements in rollers for spinning, doubling, twisting and like machines for the production of yarns or threads
IPC: D01H5/74
Filed: 1935-08-30
Abstract: 462,002. Drawing-rollers for spinning &c. machines. NEWHILL, T., and NEWHILL, J. Aug. 30, 1935, No. 24222. [Class 120 (ii)] Cork covered rollers for spinning, doubling and twisting machines, are constructed from rollers previously covered with leather, by fitting rings of plywood d, d<1> in the recessed parts which accommodate the turned over edges of the leather, so as to provide a foundation for the cork covering g of the same width as the original leather cover.
Patent GB-758163-A (GB)
Title: Miniature building set
IPC: G09B25/04
Filed: 1954-08-20
Abstract: 758,163. Toy building sets. CHRISTENSEN, J. C. S. Aug. 20, 1954 [Feb. 26, 1954]. No. 24238/54. Class 132(3) A miniature building set comprises wall and roof elements 2, 7, 8 and spacers 1, 5. The wall elements 2 and spacers 1 are the same thickness and length d, m respectively, pins 3 on the top and bottom of each wall element being located at a distance d from the ends of the element equal to -, 2 Fig. 2. Each spacer 1, Fig. 3, has two holes 4 at each end located at a distance from d the end of the spacer of - and 1¢ d respec- 2 tively. Spacers 5 are twice the length of the spacers 1 and each has holes 6 located at distances d/2 and 1¢ d from its centre. As shown, roof elements 7, 8 are flat and have pins on their underside to engage in the holes of the spacers. Alternatively they may have sockets so that the top layer of spacers may be omitted. The wal elements may be hollow and include win dows, doors, balconies &c. Polyethylene is specified as-material for the spacers and polystyrol for the wall elements.
Patent GB-296097-A (GB)
IPC: D06F29/00
Filed: 1928-08-23
Abstract: 296,097. Siemens - Schuckertwerke Akt.-Ges. Aug. 26, 1927, [Convention date]. Plates, dishes, and the like, washing.-Apparatus for washing crockery and for washing, drying, mangling, and ironing clothes are housed, with a motor, transmission gear, and appropriate clutches, in a receptacle which, when not in use otherwise, serves as a kitchen table. A hydroextractor 6 housed in a stationary receptacle 17 is driven from a shaft 21 through bevel gear and a clutch 14 and may be removed and a propeller 18 substituted therefor for circulating water to wash crockery placed on sieves 19 in the receptacle 17. Receptacles 3, 17 are covered when not in use by hinged leaves 22, 23 which, with extensions 24, 25 form the table top.
Patent GB-882318-A (GB)
Title: Improvements relating to the production of turbine and like blades
Inventor: TURNER PHILIP GEORGE
IPC: B21K3/04
Filed: 1957-04-26
Abstract: 882,318. Making turbine blades; welding by pressure. WIGGIN & CO. Ltd., HENRY. July 28, 1958 [April 26, 1957], No. 24303/58. Divided out of 882,317. Classes 83 (2) and 83 (4). In making a turbine &c. blade blank, a billet having longitudinal holes terminating inside the billet and filled with material having properties of flow similar to those of the billet and also having a separate plug of filler extending across the ends of the holes is hot worked to blank shape with elongation of the filler in the longitudinal holes and all the filler is removed to leave passages in the space it occupied. A cylindrical sheath 12, Fig. 2, of nickel-chromium creepresisting alloy has a vented end wall of metal of the sheath or formed by a plug of the same metal bonded thereto and a plug 14 of filler is inserted in the sheath. A rod 13 of the same alloy as the sheath, coated with nickel and having longitudinal filled holes 17 is shrink fitted in the sheath and diffusion welded thereto by the method of Specification 882,317. After welding, the vent 15 is closed by a weld deposit and a cap 16 is welded to the open end of the sheath. The composite billet is then extruded and taper forged to form a blade blank having a narrow end which is diffusion welded to a shroud 18, Fig. 4, and the assembly further forged. Holes 19 are drilled in the root to meet the filler 14 and the filler is leached out to form passages 17<SP>1</SP> and a chamber 14<SP>1</SP>. In a modification an extruded bar 20, Fig. 7, of nickelchromium alloy with filled longitudinal holes 21 is hollowed out at both ends. A plug 22 of filler is inserted into each hollow and a plug 23 of the same alloy as the bar, coated with nickel, is shrink fitted into each hollow. The plugs are joined to the bar by diffusion welding, the vent holes 24 are closed and the assembly is taper swaged. The ends are upset to form a root 25, Fig. 9, and a shroud 26, the assembly is forged and holes 27 are drilled to meet the plugs 22. The filler is then leached out.
Patent GB-490104-A (GB)
Title: Coupling arrangements for oscillatory circuits
IPC: H03J3/08
Filed: 1937-09-06
Abstract: 490,104. Wireless receiving systems. LORENZ AKT.-GES., C. Sept. 6, 1937, No. 24305. Convention date, Sept. 5, 1936. Drawings to Specification. [Class 40 (v)] Detuning of a circuit as a result of alteration of the coupling by which it is connected to another circuit is automatically compensated by tuning-adjustment means mechanically coupled with the coupling-adjustment means. One coil of the mutual-inductance coupling may be divided into two parts which form a variometer whose self-inductance is varied simultaneously with the strength of the coupling; or one of the parts may be wound on to the other coil of the coupling while the other of the parts is relatively movable, or the setting of the tuning-condenser may be automatically varied when the coupling is adjusted.
Patent GB-657531-A (GB)
Title: Improvements in or relating to an upholstered seat for vehicles
IPC: B60N2/18
Filed: 1945-09-19
Abstract: 657,531. Seats. SEITZ, F. X. Sept. 19, 1945, No. 24307. Convention date, Sept. 19, 1944. [Class 52 (ii)] A rocking vehicle seat comprises a fixed support 1 to which is pivoted an upper frame 2 which carries a sprung seat and on which a back element 4 provided with a spring cushion is suspended by springs 16 in telescopic tubes 6. The seat and back cushions are provided with a continuous upholstered panel or cushion 8. A foot rest 10 is carried by the upper frame 2 and a head rest 9 is adjustably mounted on the back element to move in conformity with seat and back rest which yield without relative movement to up and down movement.
Patent GB-317020-A (GB)
Title: Apparatus for jacking vehicles
IPC: B60S9/04
Filed: 1929-08-08
Abstract: 317,020. Goujon, D. Aug. 8, 1928, [Convention date]. Stands of supports.-A casing 1 secured to an axle 6 contains bell-crank levers A, B, connected by a nut 18 on a screwed spindle 15. Normally the arms 13, 13<a>, are horizontal and the nut 18 is at the bottom of the spindle. When a worm 17 is rotated by a wrench or an electric motor the nut and arms 12, 12,a, are raised and the arms 13, 13<a> forced to the ground raising the axle. The electric motor is controlled by a dashboard switch 24, Fig. 4<a>, and a double-pole reversing switch C connected as shown to the switch 24 and to the motor by the automatic pivoting of the switch C produced by stops 36, 37 on the lever B, which project through a slot in the casing of the switch.