baber/WOPTO huggingface dataset:
Patent GB-517313-A (GB)
Title: Improvements in or relating to air velocity measuring instruments
IPC: G01P5/04
Filed: 1938-07-21
Abstract: 517,313. Flow meters. ILLINOIS TESTING LABORATORIES, Inc July 21, 1938, No. 31634/39. Convention date, July 22, 1937. Divided out of 517,178. [Class 69 (i)] In a device for measuring air velocities wherein a housing with a channel connecting air inlet and outlet ports contains a rotatably mounted system adapted to be deflected by the air flow in the channel against a'yieldable restoring force, the system comprises a rotor pivoted about an axis at right angles to the direction of air flow and provided with circumferentially spaced vanes adapted to travel through, and be influenced by the air in, said channel. In Figs. 1 and 2, the rotor 241 has vanes 242 moving successively through air channel 34 connecting inlet and outlet ports 32, 33 ; the rotor may be in the form of a cup 244 to which the vanes may be soldered &c. or, as shown, the vanes may be formed by slitting the rim of the cup and pressing out the tongues so formed, a liner 245 being then placed within the cup. Further the vanes may be of the same radial length or successively shorter, and the angular spacing of the vanes may be uniform, or increase or decrease rearwardly. The motion of the rotor may be damped by a magnet 251 and a magnetic keeper 252 on opposite sides of the rim of the cup. Movement of the rotor is resisted by a spring 44 the inner end of which is secured to the rotor spindle 46 and the outer end to an L-clip 256 adjustable by a stud 55. The outer bearing of the spindle 46 may be in the cover 22, or in a cross-bar 49 in the housing body. The indicating means may comprise a dial 261 secured to the rotor and moving past a wire &c. 262, or the reverse arrangement may be used. In another form, the damping means comprises a rearwardly placed permanent magnet with laterally extending pole pieces extending on opposite sides of the rim of the cup 244. In Figs. 5 and 8, the rotor is formed from a disk 272 from which the vanes are formed by making cuts 274, 275, and bending along lines 276, 277, the part of the disk in which no vanes are required being cut down to the line 277 ; the damping magnet 278 has conveying poles 278<1> on opposite sides of the disk, and carries brackets 279 supporting the rotor spindle so as to be removable with the rotor as a unit. The lower wall of the air channel is formed by a baffle 281 fixed to the magnet 278. In another form, the vanes are formed by bending only along the lines 276, Fig. 8. a cup, secured to disk 272 and enclosing the spring 44, forming the lower part of the air channel ; if the free edges of the vanes are left inclined, the rear wall of the housing has a correspondingly inclined part. In each form, the rotor may have a balance weight and locking means, and the air inlet and outer ports may have screens, filters or calibrating shutters. Specifications 477,275, and 517,178 are referred to.
Patent GB-1104055-A (GB)
Title: Improvements in or relating to distillation apparatus
Inventor: WILLIAMSON WILLIAM ROGER
IPC: B01D3/06
Filed: 1964-03-20
Abstract: 1,104,055. Evaporators, multi-stage flash type; desalination of water. AMERICAN MACHINE & FOUNDRY CO. 15 March, 1965 [20 March, 1964], No. 31779/67. Divided out of 1,103,452. Heading B1B. A multi-stage flash evaporator, suitable for the distillation of water, comprises sets 86, 87 . . . 90 of serially-connected flash stages, each set having a major series of condenser coils 92 and a separate minor series of condenser coils 93, each major series of one set, e.g. set 88, forming with the minor series of the preceding set 89 part of a circuit which includes a pump 91 for circulating brine, withdrawn from the last flash chamber of set through the major series of condenser coils 92 of set 88. then through the minor series of condenser coils 93 in the preceding set 89, and re-introducing the brine into the first flash chamber of set 88. In the case of the first set 90, the brine is circulated through an external heat source 94. The feed liquid, e.g. sea water, is acidified, de-aerated and then passed serially through additional condenser tubes (not shown) traversing sets 86 . . . 90. The sea water next flows through heat source 94, and then enters the first flash chamber of set 90. The sea water then flows through heat source 94, and enters the first flash chamber of set 90. Excess brine, i.e. that not recirculated as described above, flows from the last flash chamber of set 90 into the first flash chamber of set 89, and so on in the case of the following sets. Residual brine is discharged to waste from set 86. The distillate, i.e. desalinated water is collected in trays below the condenser coils. Before being de-aerated, the acidified sea water may be heated by passing it through condenser coils in (a) the de-aerator (b) the first flash stage 90. The heated sea water is then sprayed, in the form of two liquid sheets, into the de-aerator which is maintained under vacuum. Part of the water withdrawn from the de-aerator is pumped back into it via a condenser coil in set 90. The flash evaporator may be associated in heat-exchange with a heat pump circuit which contains a secondary fluid.
Patent GB-304873-A (GB)
Title: Improved web roll controlling mechanism for slitting or other machines
IPC: F16D57/06
Filed: 1927-11-25
Abstract: 304,873. Marks, E. C. R., (Cameron Machine Co.). Nov. 25, 1927. Winding webs. - In arrangements for controlling the unwinding of a web from a roll comprising a pump connected to the roll support and associated with a pressure-regulating valve, a motor controlled by the tension of the web is provided for operating the valve. In the arrangement shown in Fig. 1. fluid is drawn from and returned to a tank 8, or is raised to a storage tank, by means of a rotary pump 5 comprising geared members 6, 7, the shaft 4 of the web roll 3 being coupled to the member 6. The web 2 is drawn off the roll by means of a winding- machine 1 and is retarded by the pump, the speed being regulated by a valve 11 which is operated by a hand-wheel, or automatically by a motor 21 geared to the valve. The motor is controlled by a spring-tensioned roller 15 riding on the web and mounted on guides 16. When the roller rises or falls to predetermined positions, contacts 19, 19<1> or contacts 20, 20<1>, in circuit with the motor and a battery 37, are closed and the motor rotates in one direction or the other to close or open the valve. The valve is provided with a bye-pass 24 containing a safety valve 25. When the winding-machine stops or the web breaks, the motor is stopped by means of a switch which is opened manually, or automatically by a speed governor. Instead of a switch there may be provided contacts 36 normally bridged by a contact 35 on a piston 32 arranged in a chamber 31 which communicate with the discharge pipe 10 of the pump. When the web roll stops, the pressure falls, the piston is depressed by a spring 33, the contacts are opened, and the motor is stopped.
Patent GB-1045065-A (GB)
Title: Improvements in or relating to contact lenses
IPC: G02C7/04
Filed: 1964-08-05
Abstract: 1,045,065. Contact lenses. J. T. DE CARLE. July 30, 1965 [Aug. 5, 1964], No. 31808/64. Heading G2J. A contact lens comprises a corneal portion 1 of synthetic plastic and a scleral rim 2 of a synthetic plastic material which is softer and more flexible than that of the corneal portion. The two surfaces of the corneal portion 1 may be coated with layers of the softer material, Fig. 5 (not shown). This configuration is obtained by enclosing a corneal portion 1 between two layers of the softer material in a heated mould so that the peripheral edges of the layers are sealed together to form the scleral rim. The lens of Fig. 1 is ground from a blank made of both the required materials.
Patent GB-305979-A (GB)
IPC: F26B17/08
Filed: 1928-11-01
Abstract: 305,979. Schilde Maschinenbau-Akt.- Ges., B. Feb. 13, 1928, [Convention date]. Endless-band conveyers, articles carried by.-In a drying-apparatus of the kind in which the material is carried through a drying chamber by a series of belt conveyers 4, 5, 6 permeable to air, the air passes downwardly through the material and circulates transversely to the passage of material along the whole length of the drying chamber. The air is circulated by a row of fans 8 in a side compartment 7, and is heated by heaters 9 arranged above the fans and by heaters 10, 11 arranged between the belts. The capacity of the heaters may be so arranged that the material is dried on a. belt 4 at a low temperature, on a belt 5 at a higher temperature, and on belt 6 at a lower temperature. The material is cooled, as it is being discharged, by fresh air drawn in by the fans.
Patent GB-646817-A (GB)
Title: Improvements in or relating to a measuring and feeding device
IPC: B65G53/46
Filed: 1947-12-03
Abstract: 646,817. Endless-belt conveyers. COLBURN, R. R. Dec. 3, 1947, No. 31919. Convention date, Dec. 9, 1946. [Class 78 (i)] [Also in Group XVIII] A measuring and feeding device for dry concrete aggregate comprises a rotor having an annular series of measuring pockets revolvable within a casing, a material supply hopper carried by said casing and being communicable with the successive revolving pockets of said rotor, a resilient sealing disc interposed between said hopper and one end of said rotor, another resilient sealing disc interposed between said casing and the opposite end of said rotor, and a removable or renewable wear plate secured to each of said rotor ends and slidably engaging the adjacent sealing disc. Dry cement aggregate from a supply hopper 11 falls through apertures 45 in the hopper base into measuring chambers 31 of a vertical axis rotor 13 which carries the material round to the opposite side of a casing 20 surrounding the rotor where it is discharged from the measuring chambers 31, by compressed air from a duct 59, through an opening in the base of the rotor casing 20 to a pocketed horizontal-axis rubber feed rotor 12 from which it is blown by compressed air, from a duct 75, into a pipe 80 adapted to be connected to a cement gun. The opening in the base of the measuring rotor casing 20, the casing for the rotor 12 and the pipe 80 may be rubber-lined. The measuring rotor 13 has wear plates 65, 66 fixed to its upper and lower ends which co-operate with, respectively, a rubber sealing disc 60 attached to the base of the hopper and a similar rubber sealing disc 67 attached to the base of the rotor casing 20. The hopper 11 is pivotally mounted at 47, in a cradle ring 48, itself pivotally mounted at 50, 53 to the top of the rotor casing 20, the whole being screwed down on to the rotor casing by a thumb nut 57. Specification 639,418 is referred to.
Patent GB-1313311-A (GB)
Title: Rotary kiln having an automatic control system
IPC: F27B7/42
Filed: 1970-07-01
Abstract: 1313311 Automatic control of temperature USS ENGS & CONSULTANTS INC 1 July 1970 [15 July 1969] 31983/70 Heading G3R A Rotary Kiln, e.g. for cement manufacture, is heated by a gas or oil burner 16, Fig. 1, or by pulverized coal Fig. 3 (not shown) and driven by a D.C. motor 14. Pyrometers 20a1 and 20a2 sense the raw material temperature in the reaction zone and the kiln shell temperatures respectively. Combustion and evolved gases are drawn through the kiln 12 by a fan 16e and are sampled by a probe tube 20b1 at the material feed and gas exit end of the kiln. From the probe tube the sampled gas is fed to a unit 20b3 which separates dirt and water from the gas and pumps the gas to a CO 2  analyzer 20b5 and to an O 2  and CO analyzer 20b7. From the analyzers outputs the true CO 2  content of the exit gases are obtained by a computer 20a3 which also receives as inputs the temperature responsive signals of the pyrometers. The computer accordingly adjusts the speed of the drive motor 14a via silicon controlled rectifier equipment 20a4, and/or adjusts the burner fuel feed rate by means of an electropneumatic transducer 20a5 coupled to a valve 16b, whereby to maintain a desired uniform sintering condition automatically. The true CO 2  content of cement kiln gases is defined by the formula:- If for example, the trend in true CO 2  content is equal to or less than zero (e.g. about -0À5% per hour) and the last value is less than a set point (about 27% by volume true CO 2 ) and if the trend in reaction zone temperature is equal to or greater than zero (e.g. about +50 F. /hour) and the last value (e.g. 2660F.) is above the set point temperature (e.g. 2650F.) a gradual over-firing is occurring. The computer therefore reduces the fuel rate by say 2 per cent or increases the kiln speed by 2 per cent - or causes a proportionate change in both. In general control is effected whereby the reaction zone temperature and true CO 2  attain substantially the respective set points. In an embodiment Fig. 4 (not shown) the computer comprises controller recorders.
Patent GB-320256-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B1/00
Filed: 1928-11-03
Abstract: 320,256. Kodak, Ltd., and Jelley, E. E. Nov. 3, 1928. Optical-projection apparatus.-In order to overcome the granular or spotted effects of the projected image of photographically produced originals a screen of transparent material of uniform thickness is used so crimped, corrugated or embossed that when placed between the image to be reproduced and the surface upon which it is to be recorded or projected, a series of images are formed so displaced from each other that the granularity of the image is reduced to a minimum. In one example of screen, Figs. 1 and 3 the modification of the surface is in the form of tetrahedral depressions B each surface of which displaces the incident rays a distance h as shown, sufficient to ensure that the projected image of one granule comes between the images of other granules. The screen may also be made with parallel corrugations. In use. the screen A, Fig. 5, is situated between the projection lens F and the screen G upon which the image is projected, or it may be placed between the components of the lens.
Patent GB-481626-A (GB)
Title: Appliances for holding volatile disinfectants in proximity to the human or animal body
IPC: A61D7/00
Filed: 1936-11-24
Abstract: 481,626. Porous container for solatile medicaments or disinfectants. PEARSON, Ltd., J., and GOODFELLOW, J. A. Nov. 24, 1936, No. 32098. [Classes 81 (i) and 81 (ii)] A hollow annular container a made of porous ceramic. material and charged with iodine or other volatile medicament or disinfectant through an opening c which is afterwards sealed by cement, may be applied to the umbilical cord of an animal, or may be applied to the human skin and held in place by a bandage or otherwise. If desired part of the container may be glazed leaving only the part d porous.
Patent GB-1473163-A (GB)
IPC: B60S1/60
Filed: 1974-07-19
Abstract: 1473163 Cleaning head-lamp lenses CIBIE PROJECTEURS 19 July 1974 [20 July 1973] 32114/74 Heading A4F A lens wiper system particularly for a vehicle head-lamp comprises a wiper element 2 carried by an endless driving loop 3 disposed adjacent the lens periphery and means, e.g. a motor M, for driving the loop 3. The element 2 is carried by an arm 1 connected to the loop 3 by a pivot 4 and held, during a major part of its movement around the lens 6, substantially perpendicular to the loop 3 by a spring 7. At one point of the lens periphery, however a cam 12 is engaged by a roller 13 on the arm 1 to tilt it so that the wiper element 2 sweeps any dirt in front of it off the lens. The illustrated loop 3 is flexible and runs on rollers 3. A plurality of cams 12 may be provided around the lens periphery.
Patent GB-409610-A (GB)
Title: Improvements in or relating to the manufacture of nuts
IPC: B23G1/18
Filed: 1933-11-17
Abstract: 409,610. Tapping nuts. KOSFELD, F. W., 8c, Eggestrasse, Brackwede, Westphalia, Germany. Nov. 17, 1933, No. 32117. Convention date, Dec. 5, 1932. [Class 83 (iii).] Nuts with a curved thread axis are tapped by oscillating the nut blank relative to the tap axis, the centre of oscillation being in a line at right angles to the nut bore. The nut blanks are fed singly from a chute 43 by known means to an arm 40, Figs. 1 and 3, which is cam-operated from the main camshaft 2, this arm places the blanks between two jaws, one of which 27, Fig. 10, is slidable and closed by a cam-operated lever 26 Fig. 3, having a curved edge 30 bearing against a roller 29 on the jaw, this enables the structure carrying the jaws to be oscillated relative to the lever without the pressure of the latter on the jaw 27 being affected. The structure 11 carrying the blank-gripping jaws turns about a vertical pivot 13 and is supported on an arcuate guide rail, tilting is prevented by lugs 44, 45 engaging the edge of the table 12. The pivot axis passes through the transverse axis of the nut held in the jaws so as to intersect symmetrically the axis of the bore, thus by giving the nut a half-oscillation during the axial feed of the full threads of the tap through the nut a curved thread is cut in the nut. The halfoscillation is given in timed relation with the tap feed by cam, lever, slide and connecting rod gear 1, 3, 5, 6, 7, 8, adjustable dogs 9, 10, Fig. 2, on the connecting rod engaging a projection 14 on the member 11; the cam 1 and lever 3 also feed the top spindle, the latter being supported during cutting by cam-operated jaws 21, 22 which prevent the already tapped nuts from being fed forward with the tap. The tap is supported at its forward end during cutting by a sleeve 23 carried by a resilientlymounted housing 24 axially movable against spring pressure in a frame fixed to the stationary bed of the machine.
Patent GB-799070-A (GB)
Title: Improvements in and relating to supporting structures built up of tubular members
IPC: B65G21/00
Filed: 1953-11-19
Abstract: 799,070. Supporting conveyer idlers. CATTO, A. I., and SANDERS, W. Nov. 9, 1954 [Nov. 19, 1953], No. 32152/53. Class 78 (1). In a supporting structure built up of tubular members, a pair of longitudinal tubes interconnect transverse frames each of which comprises two spaced upright telescopic legs each consisting of two tubular elements, a cross tube connecting the legs together, an upwardly open cradle on each of said legs to receive one of said longitudinal tubes, and two locking means on each of said legs. One locking means clamps the longitudinal tube down into the cradle and has a clamping member rotatable in a housing fixed to the upper telescopic element, and the other clamps the inner of said telescopic elements within the outer element and has a clamping member, rotatable in a housing fixed to said outer element, each rotatable clamping member having an eccentric portion adapted to engage transversely the periphery of the tube to be clamped. The Figures show the application to a structure for supporting brackets carrying conveyer belt idlers, each comprising a cross-bar k, Fig. 1, with a pair of posts m. These brackets are supported at intervals along members g which extend longitudinally of the conveyer and are secured at points intermediate the brackets k to supporting structures shown in Fig. 2. These structures consist of telescopic tubular legs a, b joined by cross-bar c, the tubes a, b of the legs being secured in their adjusted position by locking members e. Each locking member consists of a housing d, Figs. 2, 4, welded to the tube b, receiving a clamping member c having an eccentric concave portion e<SP>1</SP> interposed between concentric cylindrical portions and extending through a slot in the tube b to bear on the periphery of the tube a so that on turning a handle c<SP>4</SP> the portion el clamps the tubes together. The member e is secured in the housing d by a pin d<SP>1</SP> driven through the housing and engaging a helical groove in the portion c<SP>3</SP>. The tubes g are secured in cradles f welded to the tubes b by a clamp, Figs. 2, 3, which consists of a housing h secured to the tube b in which is secured a clamping member consisting of a cylindrical portion j<SP>1</SP> provided with parallel grooves j<SP>4</SP> and with an eccentric tapered portion j<SP>2</SP> having a handle j<SP>3</SP>. The member is secured in the housing h by a pin h<SP>1</SP> driven through the housing to engage a flat j<SP>5</SP> on the portion j<SP>1</SP>. By swinging the handle j<SP>3</SP> the portion j<SP>2</SP> clamps the tube g in the cradle. The brackets k, m are secured to the tubes g, by clamping members similar to the members j. Notched plates r (Fig. 6, not shown) welded to the tubes b receive the ends of the spindles of the idlers (not shown) supporting the lower run of the conveyer belt.
Patent GB-1281872-A (GB)
Title: Improvements in or relating to the formation of zinc-iron-coatings
Inventor: BROWN D R
IPC: C23C14/16
Filed: 1969-07-02
Abstract: 1281872 Producing zinc/iron coatings on ferrous substrates BRITISH STEEL CORP 1 Oct 1970 [2 July 1969] 32155/68 Headings C7B and C7F A ferrous substrate, e. g. steel sheet or strip, is coated with separate layers of zinc and iron, the outermost layer being an electro-deposited or vacuum deposited iron layer. The zinc coating(s) may be deposited by these methods or by hot dip galvanizing. The coating may comprise a plurality of alternate iron and zinc layers. Zinc may be electro-deposited from a zinc sulphate-sulphuric acid bath; and iron electrodeposited from a bath containing ferrous sulphate, ferrous chloride, sulphuric acid and Teepol (RTM). Anodes may be respectively zinc and mild steel contained in polypropylene bags. The substrate may be acid etched before plating, and may be dipped in acid between each successive immersion in the plating baths.
Patent GB-355108-A (GB)
Title: Drawer guide
IPC: A47B88/14
Filed: 1930-10-27
Abstract: 355,108. Furniture drawers. WEBER, K., 106, Hochstrasse, Hagen, Westphalia, Germany. Oct. 27, 1930, No. 32190. [Class 52 (i).] A device for guiding a drawer consists of a U-section bar a on which runs a small dovetailsection carriage c fitted on the underside of the rear end of the drawer b. A ball d is let into the carriage c and runs on the rail a. Stops g near the front of the housing prevent the drawer from being pushed in too far.
Patent GB-646454-A (GB)
Title: Improvements in co-axial cables
IPC: H01B11/18
Filed: 1947-12-05
Abstract: 646,454. Co-axial lines. POLYTECHNIC INSTITUTE OF BROOKLYN. Dec. 5, 1947, No. 32198. Convention date, Jan. 2, 1946. [Class 40 (viii)] In a co-axial cable the centre conductor 3 is supported by a thin dielectric bead 2 positioned in an annular groove formed in at least one of the conductors and the mismatch caused by the additional capacity introduced by the corners of the grooves is substantially eliminated by an increase of the characteristic impedance of the bead section over and above the characteristic impedance of the cable. Mathematical formulµ are given to determine the actual values required for particular cases.