baber/WOPTO huggingface dataset:
Patent GB-1387745-A (GB)
Title: Photo-electric head for an optical correlation velocity meter
IPC: G01P3/80
Filed: 1972-02-24
Abstract: 1387745 Photo-electric apparatus HASLER AG 24 Feb 1972 [26 Feb 1971] 8700/72 Heading G1A A photo-electric head, for use in an optical correlation velocity meter, comprises two light sources, or a single light source with associated optical elements, to produce two beams of light which are directed on to and collected after reflection from two spaced areas, on a surface, fixed in relation to the head but moving in relation to the surface, by a single objective lens, a beam splitter for separating the illuminating and reflected beams, and first and second photo-electric detectors receiving light reflected from the respective areas.  In Fig. 1, a laser 12 and double wedge prism 13 are used to produce the two beams which pass via semi-reflective mirror 24 (or two spaced bar shaped ones) and objective 25 to two spaced points 26, 27 which move along the rail with the head. The reflected beams from the points are directed to respective detectors 28, 29 which are connected to a correlation circuit e.g. as in Specification 964581. In the arrangement of Fig.2, a single laser source 42 is used and two beams polarized in mutually perpendicular planes by a Wollaston or Rochon prism 43. A very narrow beam from laser 42 may be produced if required by use of apertured plate 46. The beam splitter 44 comprises a semi-reflector with two small holes 56, 57. Objective 45 renders the beams parallel so that the distance # is fixed independently of movement of the head away from the surface 41. In the reflected beam path further discrimination between beams and against ambient light is provided by a second polarizing prism 53. The positions of source(s) and detectors may be interchanged, in which case separate mirrors are used in place of mirror 44.
Patent GB-785942-A (GB)
Title: Improvements in power operated brakes particularly for winding and haulage engines
IPC: F16D49/16
Filed: 1955-03-25
Abstract: 785,942. Winding engine brakes. BARCLAY, SONS & CO., Ltd., A., BELL, R. W., and ELLIS, R. March 23, 1956 [March 25, 1955], No. 8705/55. Addition to 697,401. Class 103 (1). A power operated brake for a winding or haulage engine as described and claimed in the parent Specification, and incorporating two brake posts 6 and 7 and a fluid pressure device consisting of a cylinder and piston assembly 1, 2 acting in opposition to spring means 9 operable to apply the brake, the fluid pressure device being supported directly by the brake post, is provided with an auxiliary cylinder 3 mounted on the same brake post 6 as the fluid pressure device, and a piston movable within the auxiliary cylinder is in direct connection with the piston of the fluid pressure device, the portion of the auxiliary cylinder on the side of the associated piston remote from the connection of said piston to the piston of the fluid pressure device being adapted to be put into communication with a source of fluid under pressure Specification 764,214 also is referred to.
Patent GB-268790-A (GB)
Title: Process for obtaining concentrated potassium solutions from distiller's mash
IPC: C12F3/10
Filed: 1927-03-30
Abstract: 268,790. Goldschmidt, R., (trading as Goldschmidt, R. [Firm of]). March 30, 1926, [Convention date]. Potassium compounds, recovering from liquors containing organic matters.-A process for obtaining concentrated potassium solutions from distillery washes consists in separating out the suspended matter comprising yeast cells, nitrogenous and other compounds into a semi-solid or solid mass, the clean centrifuged liquor being used for preparing new mash. the resulting wash being again centrifuged and the clean liquor returned for preparing a further mash, this cycle being repeated until the concentration of salts interferes with the normal fermentation process.
Patent GB-177784-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M7/11
Filed: 1922-03-28
Abstract: 177,784. Brun, F., and Rassinfosse, F. March 29, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Spray carburettors of the type having a spring- controlled main air inlet valve have a valvecontrolled passage connecting the upper part of the float chamber and the main air inlet chamber. A valve 2, adjustable by a lever 13 through members 14, 12 and a spring 6, controls the admission of air to a chamber 1 which communicates with mixing-chamber 7. The chamber 1 also communicates with the top of the float chamber through a conduit 18 having a cock 3 and so to the atmosphere through an opening 5 which may be adjustable by turning the screw 19 carrying a needle valve 15. A depression is produced inside the float chamber 4 and this may be utilized for drawing petrol into it. A tube 10 may extend to the upper part of the chamber to retain the petrol around it when the union 16 is unscrewed.
Patent GB-222774-A (GB)
Title: Improvements in or relating to precast concrete building blocks
IPC: E04B2/02
Filed: 1924-04-09
Abstract: 222,774. Carnes, C. April 9, 1924. Building-blocks, special shapes of; slabs. - A two - part building-block has each of the slabs 1 integrally formed on its inner face with distancepieces 2, and metal rods 4 are adapted to engage vertical holes 3 in those distancepieces which are in vertical alignment, to connect the parts. The space between the parallel slabs 1 may be provided with a grout filling, and the distance - pieces may be wedge-shaped in cross section. The blocks, as shown in Fig. 2, may have two distance-pieces on each slab, those on one slab being in vertical alignment with those on the other slab, but in the form shown in Fig. 3 only one of the two distance-pieces on one slab is in alignment with a distance-piece on the other slab. The metal rods 4 may be of such a length as to engage the distance-pieces of more than one two-part block so as to pass vertically through an erected wall.
Patent GB-967741-A (GB)
Title: Improvements in drums and like containers
Inventor: BROUGH AUSTIN ERNEST
IPC: B65D21/02
Filed: 1961-03-11
Abstract: 967,741. Making containers. E.A. BROUGH & CO. Ltd. March 12, 1962 [March 11, 1961], No. 8984/61. Heading B3A. [Also in Division B8] In a method of forming a metal drum 10 the head 11 is formed from a flanged blank of square or rectangular contour which is pressed or stamped and has an aperture punched therein and an outlet fitted in the aperture by searing, welding or soldering and then part of the head blank between the aperture and flange is rendered conical, as at 12, by spinning. The bottom of the drum may have a conical recess spun therein to facilitate stacking.
Patent GB-592632-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A61F5/04
Filed: 1945-04-11
Abstract: 592,632. Surgical bedsteads. WHITFIELD, S. L., and WHITFIELDS BEDSTEADS, Ltd. April 11, 1945, No. 9011. [Class 52(ii)] [Also in Group VI] A surgical bedstead of the Pearson fracture kind has supporting members a<1> on the lifting pole d at the head and a long beam a adjustably attached at one end to one of the supporting members and at its other end by means of a pin passing through one of a series of holes l, to the cross-bar k on the uprights e at the foot, a suspension bar b being secured by means of a swivelling clamp to the long beam a so that the desired angle of abduction of the suspended limb may be obtained. A cross-bar f is clamped at g to the lifting pole d and has four pulleys h secured to it on each side of the lifting pole and at adjustable distances from it, four cords i being employed on one set of four pulleys to raise a splint p.
Patent GB-1253581-A (GB)
Title: Improvements in processes and apparatus for making steel
IPC: C21C5/48
Filed: 1969-02-19
Abstract: 1,253,581. Metallurgical converters. EISENWERK - GESELLSCHAFT MAXIMILIANSHUTTE m.b.H. 19 Feb., 1969 [24 Feb., 1968; 13 Aug., 1968; 14 Jan., 1969; 30 Jan., 1969 (2)], No. 9069/69. Heading F4B. [Also in Division C7]  A steelmaking converter is provided with a removable bottom having blowing nozzles each of which is constructed to blow in a jet of oxygen surrounded by a sheath of shielding gas, a part of the converter bottom being free of nozzles. The latter may all be located in one half of the bottom, may be arranged in groups, or may, in a converter of circular cross-section be all located on a diameter, preferably parallel to the tilting axis. One or more of the nozzles may be inclined at an angle to the longitudinal axis of the converter and may be used to assist in discharging slag. Each nozzle may consist of an oxygen pipe surrounded by a pipe for sheath gas, the two pipes being separated by spacers such as a wire helix, spacer ribs, or sintered metal or refractory. The diameter of each oxygen pipe is preferably not more than 1/35 of the depth of metal in the converter, while the total nozzle cross-sectional area in sq. cm. should substantially equal the capacity of the converter in metric tonnes.
Patent GB-1268596-A (GB)
Title: Multiple washbasin made of concrete or artificial stone
Inventor: ROTTER WOLFGANG
IPC: E03C1/14
Filed: 1970-02-25
Abstract: 1,268,596. Washbasins; supply fittings; brackets. W. ROTTER and J. ROTTER. Feb. 25, 1970 [Feb.25, 1969], No.9089/70. Headings A4B and A4N. A multiple washbasin 1 is made in one piece from concrete or artificial stone having its internal surfaces and the back upper surface coated with either hot or cold synthetic material. The external surfaces are ground flat. The bottom wall 6 is flat and slopes downwardly rearward to a gutter 7. The back wall 9 overhangs the gutter to form a splashtrap and has recesses 14 in its upper surface 11 which slope towards the basin. The front wall 8 also slopes inwards to form a splashtrap or has an internal rim, Fig. 4 (not shown), recesses 12 being formed opposite recesses 14. All internal corners are rounded to prevent the accumulation of dirt. Faucets 5 are located in holes 15 behind recesses 14, which holes are initially blind and are then punched out as required to accommodate faucets. Bushes, against which nuts on the faucets are tightened, are located in the holes 15. The faucets are prevented from rotating by pins which penetrate the bushes radially, Fig. 8 (not shown), the outer ends locating in slots in the basin and the inner ends in a slot in the outer tube of the faucet. The faucets may alternatively be carried on an upper distributor 4 supplied by pipes 16 located in initially blind holes as described above, but situated near the rear corners of the basin. The basins are interlocated when in back to back or side by side relationship, by locating pins which engage bushes set in the basins back and side walls, see Fig. 5 (not shown). Integral studs 17 prevent washing equipment from falling into the basin. Towel holders 20 of the resilient cross slot type are provided in the front wall 1. The towel holders communicate with fall shafts, Fig. 3 (not shown) which allow rubbish inserted therein to fall to the floor.
Patent GB-786764-A (GB)
Title: Improvements in or relating to the production of moisture-proof sheet wrapping materials having a normally solid polyethylene plastic coating
Inventor: ROSE RICHARD ARTHUR
IPC: C08J7/043
Filed: 1955-03-29
Abstract: 786,764. Moisture-proof regenerated cellulose films. BRITISH CELLOPHANE, Ltd. March 15, 1956 [March 29, 1955], No. 9119/55. Class 140. Regenerated cellulose film treated with a polyalkylene imine is coated with a normally solid polyethylene plastic, such as polyethylene having a number average molecular weight (as defined in the Specification) of 14,000-44,000, or polyethylene modified by addition of raw rubber, paraffin wax, resins, dyes, pigments or fillers. The preferred polyalkylene imines are those having a viscosity of about 100 poises in 20 per cent aqueous solution at 20  C. especially polyethylene imine. The polyalkylene imine may be added to the viscose from which the film is to be formed, or the film while in the gel state may be passed through an aqueous bath contaning the polyalkylene imine. This bath may also contain a softening agent, e.g. glycerine. Alternatively the dried base film may be coated with the polyalkylene imine dissolved in an organic solvent such as ethyl alcohol. The polyethylene may be dissolved, e.g. in a hot chlorinated hydrocarbon and the base film treated with the polyalkylene imine passed through or sprayed with the solution. Preferably the molten polyethylene is extruded as a thin film and immediately laminated on to the base sheet. Specification 766,827 and German Specifications 752,810 and 753,191 are referred to.
Patent GB-381098-A (GB)
Title: The manufacture of a stable chloro rubber
IPC: C08C19/14
Filed: 1932-03-30
Abstract: Coating compositions are prepared from a stable chlorinated rubber formed by passing chlorine into a solution of rubber in an inert solvent in the presence of a hydrochloric acid absorbing agent which is not substantially attacked by chlorine, such as alkali or alkaline earth carbonate or bicarbonate, alkaline earth oxide or hydroxide, magnesium oxide or sodium acetate.  The compositions may contain in addition, softeners, drying oils, filling materials and pigments.ALSO:A stable chlorinated rubber is prepared by passing a stream of chlorine into a solution of rubber in an inert rubber solvent in the presence of a hydrochloric acid absorbing agent which is not substantially attacked by chlorine such as an alkali or alkaline earth metal carbonate or bicarbonate, an alkaline earth metal oxide or hydroxide, magnesium oxide, or sodium acetate.  The reaction mixture is simultaneously or subsequently heated. Suitable solvents are tetrachloromethane, chloroform, tetrachlorotheane, hexachloroethane, ethylene chloride, and methylene chloride.  The preferred method of working is to pass in chlorine at 10-40 DEG  C., and then heat the product to 60-90 DEG  C. for 2-10 hours.  Rubber containing 45-70 per cent chlorine is obtained.  The preferred amount of acid absorbing agent is 3-4 parts by weight on 1 part of rubber, the latter being in solution in 4-10 per cent strength.  The chlorinated rubbers may be used in coating compositions which may contain in addition to the chlorinated rubber, softeners, drying oils, filling materials and pigments.
Patent GB-548776-A (GB)
Title: Improvements connected with the fittings of tubular fluorescent lamps
IPC: F21V19/00
Filed: 1941-07-23
Abstract: 548,776. Tubular fluorescent lamp fittings. THORPE, Ltd., F. W., THORPE, F. W., and BRANGWIN. K. C. July 23, 1941, No. 9280. [Classes 75 (iii) and 75 (iv)]  Tubular fluorescent lamps C are supported at both ends of an inverted trough-shaped reflector A by a plate 21 adjustably secured by screws 27 and clamping plates 26 to an aperture plate 13 forming the body of a bracket 6 depending from the top of the reflector. The lamp passes through a hole 21a in the plate 21 and is lightly gripped by springs 24. A chamber for the detachable lamp connectors 9 is formed between the bracket 6 and a bracket 7 by a detachable cover 10. A channel 5 extending along the top of the reflector accommodates the lamp leads.
Patent GB-371566-A (GB)
Title: Improvements in pipe connections
IPC: F16L23/00
Filed: 1931-03-26
Abstract: 371,566. Pipe joints. ECONOMICAL BOILER WASHING CO., Ltd. and SOUTH, E. J. H., Oswaldestre House, Norfolk Street, Strand, London. March 26, 1931, No. 9286. [Class 99 (i).] A flanged pipe joint comprises a standard flange 5 secured to the pipe 2 and a flange 3 having an inclined bore in which the pipe 1 is secured as by screw threads 7. The flange may be tapped for the whole or part of its length, in the latter case an internal shoulder is formed against which the end of the pipe abuts.
Patent GB-1499075-A (GB)
Title: Thermoelectric ignition safety device
IPC: F23N5/10
Filed: 1976-03-09
Abstract: 1499075 Burner controls JOH VAILLANT KG 9 March 1976 [26 March 1975] 09379/76 Addition to 1317535 Heading F4T In the device of Specification 1,317,535 the lever 8 carries, mounted for pivoting about an axis 27 perpendicular to the axis 9 of the lever 8, a lever 29 which is arranged to be rotated by an OFF push-button 30 against the force of a spring 35 which has a projection (37), Figs. 3, 4, 11, 12 (not shown) engaging a lever 38 and preventing it from returning to its initial position in which it causes microswitches 16 to be open. To switch on the device the ON pushbutton 4 is depressed, turning lever 7 and (by engagement of projections 22, 46) lever 38 anticlockwise and moving armature 3 and rod 12 to the left so that the armature abuts electromagnet 2. The movement of the rod 12 causes the lever 8 to turn anti-clockwise, carrying the lever 29 so that it depresses stem 6 of pilot gas valve 5; however cam 19a on the lever 7 retains lever 14 and hence the microswitches are held open. Upon heating of a detector (not shown) by the pilot flame the magnet 2 is energized and retains the armature 3 and the rod 12; on release of the button 4 the lever 14 is released and the switches 16 close, operating the main gas valve, and a pump if provided. To switch off, the button 30 is depressed, engaging a cam surface 32 on the lever 29 and pivoting it, allowing the valve stem 6 to enter an aperture (52), Fig. 10 (not shown) in the lever 29 and bending the spring 35, thus releasing the lever 38 which moves the lever 14 to open the switches 6. The valve stem 6 remains engaged in the aperture (51) until the magnet is de-energized, releasing the armature and allowing the. lever 8 to pivot clockwise, carrying the lever 29; thus the burner cannot be reignited until the pilot flame detector has cooled sufficiently to de-energize the magnet.
Patent GB-197656-A (GB)
Title: Improvements in or relating to evaporating water from liquid or semi-liquid substances
IPC: C11D13/26
Filed: 1923-04-06
Abstract: 197,656. Trocknungs - Anlagen - Ges. May 9, 1922, [Convention date]. Film evaporators; evaporating plant and processes.-In evaporating liquid or pulpy materials, such as soap or glue on steam-heated rollers, the material discharged from the rollers is immediately cooled to prevent excessive drying. The material dried on heated drums A, B is discharged between cooled drums a, b which are rotated by means dependent on the rotation of the drums A, B.
Patent GB-180822-A (GB)
Title: Improvements in joint-making packing
IPC: F16J15/10
Filed: 1921-03-31
Abstract: 180,822. Connolly, H., and Connolly, B. L. March 31, 1921. Drawings to Specification. Joint-making packing. - In a joint-making packing of the type in which a strip of treated fabric is spirally wound into the form of a ring so that when in use the pressure comes upon the edges of the fabric, the material is coated or impregnated with a non-vulcanizing composition of rubber and an inert mineral substance such as powdered whitening, chalk, asbestos, kieselguhr, lead oxide cr zinc oxide in such proportions as will give an adhesive surface, is wound into a roll under considerable tension or pressure, and then cut into rings of the desired width or thickness.
Patent GB-911400-A (GB)
Title: Improvements in or relating to cam systems for knitting machines
IPC: D04B15/36
Filed: 1961-03-16
Abstract: 911,400. Knitting-machines. STOLL, R., STOLL, E., STOLL, H., STOLL, G., and STOLL, E., [trading as STOLL & CO., H.]. March 16, 1961 [March 16, 1960], No. 9600/61. Class 74 (2). In a knitting-machine cam system or lock, sets of adjusting cams adjust the needle depressing cams in their own plane and a component with indexing steps at different levels influences the positions of other cams or lock parts in planes transverse to the aforementioned plane, the adjusting cams and indexing steps being simultaneously movable angularly about a common axis of rotation. A circular plate 4 and a lever 6 are secured to a spindle 3 rotatably mounted in a bush 2 in a part 1 of a lock carriage. Plate 4 carries a series of adjusting cams 10, 11 adjustably held in position by bolts 9. Rotatably mounted on a projecting portion of bush 2 and rigidly secured to spindle 3 is a disc 13 with two circular series of steps 14, 15 disposed in parallel planes. Thus plate 4 and disc 13 are turned together by lever 6. Cams 10 and 11 engage respectively pivoted bars 18 and 19 whose outer ends act on slides 22, 23 attached to stitch cams 24, 25. Rack teeth on slides 22, 23 turn pointers 27 indicating the position of the stitch cams 24 and 25. Steps 14, 15 engage the bolts 29, 30 of bolt cams 31, 32. Abutments 33 on the edge of disc 13 can engage stops at the ends of the traverses of the lock carriage so as automatically to turn the disc. Peripheral notches 35 on plate 4 correspond to abutments 33 and are engaged by spring-biased detent 36 to prevent further movement. A similar arrangement may be applied to a circular knitting-machine.
Patent GB-627110-A (GB)
Title: Improvements relating to frequency-modulated electronic oscillators
IPC: H03C3/24
Filed: 1947-04-10
Abstract: 627,110. Frequency modulation. CABLE & WIRELESS, Ltd., COLE, A. W. H., and COPPER, E. G. April 10, 1947, No. 9609. [Classes 40 (v) and 40 (vi)] Frequency-modulated signals for telegraphy are produced by means of a phase shift oscillator having a modulator thermionic valve in shunt with one of the resistors forming part of the frequency-determining network, and the signals are fed to the grid of the modulator valve through a low-pass filter. The phase shift oscillator comprises three valves V1, V2, V3 as shown, in which the output from the cathode of the last valve is applied to the input of the first via a resistance capacity frequency-determining network R1, C1, R2, C2. Modulator valve MV acts as a variable impedance in shunt with resistance R1, so that frequency-modulation may be effected by applying signals to the grid of valve MV. It is stated that the anode voltage of valve MV is supplied by the anode rectification effect of this valve. Telegraph signals are applied from relay contact T, to amplitude-limiting valve LV, the output from the cathode of which is applied via low-pass filter LP to the input of valve MV. The lowpass filter serves to limit the rate of frequency change to avoid excessive band width. Negative feedback in the three-valve amplifier may be provided by means of a resistance R3.
Patent GB-768877-A (GB)
Title: Method of and apparatus for checking the tensions in heated arches
IPC: F27D1/02
Filed: 1955-04-01
Abstract: 768,877. Strain - - gauges. OSTERREICHISCH-AMERIKANISCHE MAGNESIT AKT.- GES. April 1, 1955 [April 2, 1954], No. 9640/55. Class 106 (2). [Also in Group XII] The strain in a heated furnace arch is indicated by a rod 22 whose one end 221 seats on the arch and whose other end 24 is fixed to the supporting structure 7 for the arch, the movement of the rod being amplified and communicated to a pointer 28 pivoted at 27 and linked to the rod 22 at 25. The lower end of the rod 22 may be initially adjusted by means of a telescopic connection 22<SP>11</SP>.
Patent GB-1044703-A (GB)
Title: An improved motion picture camera
IPC: G03B41/10
Filed: 1965-03-08
Abstract: 1, 044, 703. Cine cameras. BECKMAN & WHITLEY, Inc. March 8, 1965 [July 3, 1964], No. 9642/65. Heading G2E. A cine camera with continuous film feed has an oscillating reflector 22 between lenses 20, 21 of the optical system to provide the intermittent image motion at gate 14, and means 15 to produce a sound record on film 12 simultaneously with the photographic record. Mirror 22 is pivoted at the intersection 24 of lenses 20, 21 by an arm 26 whose spring-loaded hook engages a film perforation until removed by cam 32, when the spring 34 returns arm 26.