baber/WOPTO huggingface dataset:
Patent GB-1234895-A (GB)
Title: Improvements in or relating to lighting units
IPC: F21V7/04
Filed: 1969-04-16
Abstract: 1,234,895. Lamps. VAGBELYSNING A.B. 16 April, 1969 [23 April, 1968], No. 19323/69. Heading F4R. A street lamp comprises an ellipsoidal reflector 1 having a light source at the proximate focus F1 and a convex, preferably spherical, reflector 2 facing the reflector 1 and formed with at least one concave reflective recess 3. The recess 3 is part of a paraboloidal surface having its focus coincident with the remote focus F2 of the reflector 1 and its axis OX inclined at an angle α to the horizontal so that light reflected by the recess issues as a parallel beam. A clear glass cover may be provided between the outer peripheries of the two reflectors.
Patent GB-147434-A (GB)
Title: Improvements in wireless telegraph transmitters
IPC: H04L27/04
Filed: 1920-07-07
Abstract: 147,434. Ges. f³r Drahtlose Telegraphie. Oct. 24, 1917, [Convention date]. Wireless telegraphy; electric oscillations, producing. - A tone transmitter comprises a valve oscillation generator with its grid circuit influenced by currents of audible frequency also generated by the valve. In the arrangement shown in Fig. 1, the plate-filament circuit of the valve generator 1 includes the aerial 3, and the grid-filament tuned circuit 4 is coupled to the aerial inductance. The tone frequency is produced by the valve 1 by connecting a circuit 8 tuned to the tone frequency in-the aerial circuit, and coupling it to a coil in the grid circuit. Alternatively, the tone circuit may be connected as a shunt across the plate and filament of the valve 1, and coupled to a coil directly connecting the grid and filament. The tone circuit may be disconnected by a switch such as 11, Fig. 1 (Cancelled), the valve then producing continuous oscillations of constant amplitude. The tone may be varied by the optional connexion of different capacities 9, 10 in the tone circuit. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangement shown in Fig. 1 (Cancelled), in which a buzzer 6 is connected through a transformer 7 across a condenser in the grid circuit, so as to supply the tone frequency to the grid. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 152,365.
Patent GB-1056776-A (GB)
Title: Process for the manufacture of ferrophosphorous in powdered form
IPC: B22F9/08
Filed: 1965-05-07
Abstract: A ferrophosphorus melt is atomized to powder form, e.g. by water, steam or a gas such as air or N2, under a gauge atomization pressure of 1.0 to 13 atmospheres.  The ferrophosphorus may contain at least 1% by weight of Si and/or B. The Si content of the melt may be adjusted by adding ferrosilicon. The atomized ferrophosphorus particles may have a diameter smaller than 20 mms., e.g. at least 2/3 by weight of the atomized particles may have a grain size smaller than 5 mms.  The atomizing agent and weight per cents of elements contained in the ferrophosphorus powders produced in the Examples are as follows  1) water, 19.5 P, 6.2 Si  2) steam, 18.9 P, 7.5 Si  3) air, 19.2 P, 7.9 Si  4, 5 and 6) steam, 18.7-19.3 P, 6.9-7.1 Si  7) steam, 22.4 P, 2.3 Si  8) steam, 21.5 P, 9.3 Si, 0.8 B.
Patent GB-840393-A (GB)
Title: Titanium base vanadium-iron-aluminium alloys
IPC: C22C14/00
Filed: 1957-06-19
Abstract: A titanium base alloy suitable for rolling to sheet material has a composition, in per cent by weight, within the following range: V 7.5-8.5, Fe 2.5-5.5, Al 1.0-2.0, Ti and impurities the balance.  The alloys may contain as impurities C up to 0.06, N up to 0.03, O up to 0.15, H up to 0.024.  Reference has been directed by the Comptroller to Specification 782,564.
Patent GB-256953-A (GB)
Title: Improvements in regulating-devices for clockwork mechanism
IPC: G04B17/22
Filed: 1926-08-05
Abstract: 256,953. Ditisheim, P. Aug, 13, 1925, [Convention date]. Balance mechanism.-A balance wheel a for use with a self-compensating hair-spring has guide-slots e in which are adjusted bimetallic sectors f. These sectors are held by screws h and may carry compensating weights g. The slots e may be in the rim or on any surface of the rim.
Patent GB-199962-A (GB)
Title: Improvements in and relating to taps and valves
IPC: F16K1/14
Filed: 1922-07-14
Abstract: 199,962. MacIsaac, A. H. July 14, 1922. Loose ball valves; actuating - mechanism. -A ball valve is seated or deseated by a manually operated and geared handle. The cylindrical casing formed in two parts 2, 3 screwed together contains a seat 7 for the ball 28 which is forced to or from the seat by cams 27, 27<x>, mounted eccentrically on the packed spindles 19, 19<x>, respectively. Gears 33, 34 mounted on the squared ends of the spindles 19, 19x respectively are in mesh with an idler 38. A handle is fitted to one of the stems 24 for operating the valve positively.
Patent GB-276131-A (GB)
Title: Improvements in and relating to variable electric condensers and the like
IPC: H01G5/18
Filed: 1926-08-06
Abstract: 276,131. Warbrook, F. G. Aug. 6, 1926. Condensers.-A resilient plate is caused, by relative movement between its supports and an abutment, to form an arc between itself and the lateral edges of the abutment before first contact is made with the dielectric separating it from an opposing plate. The two resilient metal plates c, e are bowed outwardly and separated by insulating balls or cylinders d taking in suitable apertures in the plates. Rotation of the screw g causes the plates first to straighten, then to make line contact with the dielectric i, and finally to abut the dielectric over the whole area of the abutments b, f in the maximum capacity position. A three plate condenser can be made by inserting an extra dielectric sheet i and metal plate j between the plates c, e, which plates may be integrally formed. The plate j is carried on pins k extending through the balls d. In Fig. 7, the plates c, e are disposed at right angles so that a point contact with the dielectric is obtained first, but the axes of the plates may be at any angle desired to provide varying characteristics. Fig. 10 shows a form wherein the plates are curved unsymmetrically and a floating ring o serves as a support for the balls d. The first contact will be along two lines and the plates may be angularly arranged as in Fig. 7 to vary the characteristics. In another form, the lower plate c is fixed, being constituted by the base of the casing.
Patent GB-293576-A (GB)
Title: Improvements relating to the machine guards of spinning and analogous frames
IPC: F16P3/08
Filed: 1927-07-22
Abstract: 293,576. Smith, W. Prince-, and Waterhouse, D. July 22, 1927. lnterconnecting guard with starting- gear.-In spinning and analogous frames having screw - actuated starting-gear interconnected with the guards, strain on the mechanism on attempting to start the drive with a guard open is avoided by disconnecting the screw-means from the starting-gear. The guards at the driving end of the machine comprise two inwardlysliding panels 4 and two hinged doors 7, Fig. 1. The lower slideway 5 for the panels has interruptions normally occupied by similarly-shaped projections 9 on the doors 7, which are thus held shut by the lower edges of the panels 4. When, on sliding the panels open, the doors 7 also are opened, the nose 18 of a weighted catch 17, Fig. 4, projects into the slideway and obstructs return of the panels. A sliding rod 10, secured to the beltstriker 13, carries loosely between collars 19 a latch 20, Figs. 5 and 7, which normally lies in a notched member 22 secured on the screwactuated starter-rod 21, but is lifted therefrom by a stem 25, extending from a pivoted arm 24, whenever a lug 26 on the arm is cammed up by the bevelled sides 28 of recesses 27 in the top edges of the overlapping panels 4. On starting the machine, the arm 24 is held down, and the panels 4 locked, by a stem 30 moving with the belt-striker rod 10. Should either panel be closed after starting-movement of the rod 21, the latch 20 is guided into its notch on return of the rod by a slope 31 on the member 22. The inwardlysliding panels 35, Figs. 10 and 11, at the "Scaife's motion " end are locked during running by pins 40 on a rocking lever 39, rigid with an arm 48 carrying a stem 49. On moving the lever to the position shown in broken lines, the pins are withdrawn from the path of the panels by fixed camsurfaces 42, which act on the lever to shift it on its pivot 44 against a spring 43. The stem 49 then lifts a latch 50, mounted between collars at the end of the starter-rod 21, from a notch 54 in a non-rotating nut 52, provided with a slope 57 having a similar function to the slope 31, Fig. 7. On closing the panels 35, restoring the lever 39 and stem 49, and rotating the screw 53 by a handwheel 55, the starter-rod 21 is shifted, the latch 50 being carried under and held down by a fixed bar 56.
Patent GB-381244-A (GB)
Title: Improvements in, or relating to hutch or wagon stop blocks
IPC: B61K7/22
Filed: 1931-07-07
Abstract: 381,244. Railway stops. MACBETH, G., 21, Hill Road, Dykehead, Shotts, Lanarkshire. July 7, 1931, No. 19499. [Class 104 (ii).] An axle stop for preventing hutches or wagons from running away is so constructed that it returns automatically to the stopping-position after an attendant has released one or more wagons by lowering the stop. The device comprises an iron bar a pivoted to a frame h which is secured between the track rails. A shoulder b is formed on the bar to engage an axle q of a wagon O, and the bar is held in the stopping-position by means of a wiper arm d which is pivoted to the frame and is operated by a weighted lever j. The free end of the wiper d engages a surface e on the underside of the bar a, and this surface is so shaped that when the lever j is lifted, the arm a is lowered to such an extent as to disengage the axle q and release the wagon. Stops k, l are formed on the bar to engage the wiper in its extreme positions. The weight of the lever j normally holds the wiper in the position shown, and in this position, the inclination of the wiper is such that the bar a cannot be lowered unless the lever is raised. When the bar a is lowered, the axles q roll on it and hold it down until the wagon has passed, and the bar then rises to the stop position. If it is desired to let a train of wagons pass, the bar can be of such a length that, when lowered, it is engaged by an axle while it is still engaged by an axle of the preceding wagon. In order to cushion the blow when an axle strikes the shoulder b, a spring, or a spring- controlled arm, may be fitted on or adjacent to the shoulder. Alternatively, the bar a may be connected to its pivot f through a spring- controlled extension. In a modified construction, the wiper a is replaced by a toggle joint connecting the bar a to the frame h. The lever j may be fitted with a catch so that it cannot be moved unless the catch is first withdrawn. It may also be replaced by a pedal, and it may be operated by means of a rod or wire from a remote point.
Patent GB-1308717-A (GB)
Title: Method of separating vinyl acetate from liquid mixtures
IPC: B01D3/40
Filed: 1971-06-08
Abstract: 1308717 Vinyl acetate SOC ITALIANA RESINE SpA 8 June 1971 [1 July 1970] 19527/71 Heading C2C In a process for the separation of vinyl acetate from a mixture with ethyl acetate, the mixture is supplied to a distillation column with thirty to fifty theoretical trays at a point intermediate between the top and bottom of the column, ethylene glycol and/or propylene glycol is supplied at a point intermediate between the mixture addition and the top of the column, with a weight ratio of vinyl acetate : ethylene glycol and/or propylene glycol of 0À03 : 1 to 2 : 1, and with a reflux ratio of from 2 to 7 to obtain vinyl acetate at the top of the column and ethyl acetate and ethylene glycol and/or propylene glycol at the base. Preferably if the column has more than thirty theoretical trays, the mix is introduced at a point above the fifth, if more than forty at a point above the tenth. The original mixture may be from the catalytic oxidation of ethylene and acetic with palladium salts as catalysts.
Patent GB-583150-A (GB)
Title: Device for dispensing small quantities of pulverulent material at a time
IPC: B65D47/24
Filed: 1944-10-11
Abstract: 583,150. Dispensing powders such as snuff. HINDLEY, J. B., HINDLEY, H. B., HINDLEY, A. B., and HINDLEY, C. B. Oct. 11, 1944, No. 19546. [Class 18] A device for dispensing small quantities of pulverulent material such as snuff comprises a container 1 with an end opening 2 normally obturated by a plug 3 grooved at 3b and with a conical projection 3c. A spring 4 bearing against an abutment 5 normally keeps the opening 2 closed, but on pressing the extension 3c downwards against any object the powder emerges. A cap 6 closes a filling opening at the other end.
Patent GB-352229-A (GB)
Title: Improvements relating to the wheels of hutches, tubs, corves, bogies and the like
IPC: B60B17/00
Filed: 1930-06-27
Abstract: 352,229. Making wheels. BAIRD, M. B., Commercial Road, Dunavon, Strathaven, Lanarkshire. June 27, 1930, No. 19549. [Classes 83 (ii) and 83 (iv).] Uniting by fusion.-Wheels of colliery hutches, tubs, corves, bogies, and other waggons are secured to their axles by forming the bore of the hub with bevelled or tapered ends 3, 4, and welding the axle 2 thereto by oxyacetylene or electric welding. The axle may be inserted into the bore and welding effected first on the inner side as shown or the axle may be held so as to receive the wheel on its end so as to weld the outer side first. The wheel is then reversed and the second weld effected. Additional metal, if necessary, is run in to fill the tapered recesses.
Patent GB-463023-A (GB)
Title: Acoustical oscillator, specially organ pipe
IPC: G10B3/08
Filed: 1936-07-15
Abstract: 463,023. Organ pipes &c. JARNAK, N. P. R. July 15, 1936, No. 19605. Convention date, July 22, 1935. [Classes 13 and 88 (ii)] In an acoustical oscillator, especially an organ pipe whether open, stopped, or reed, the resonance frequency of the mouthpiece 3 is to the resonance frequency of the resonator portion 1 in, or approximately in, the proportion of 3 : 2.
Patent GB-880305-A (GB)
Title: Improvements in and relating to the manufacture of insulating tapes
IPC: H01B3/50
Filed: 1959-06-09
Abstract: 880,305. Impregnated insulating tape. ZARTL, J. June 9, 1959 [June 11, 1958], No. 19675/59. Class 140. In manufacturing insulating tapes cut obliquely to the run of the fabric, the lengths formed by cutting being subjected to impregnation, the fabric is pre-impregnated before cutting with a dilute solution of an insulating material. The lengths may be formed by cutting up a tubular fabric helically. Suitable impregnants are solutions of drying oils, polyisocyanate-polyester mixtures, epoxy resins, alkyd resins, polyester resins, silicones, polytrifluoromonochloroethylene, melamine-aldehyde or urea-aldehyde resins, polyvinyl resins, and natural or synthetic rubber or rubber derivatives.
Patent GB-405672-A (GB)
Title: Improved box for sewing requisites
IPC: D05B91/14
Filed: 1932-08-11
Abstract: 405,672. Domestic bobbin &c. holders; workboxes. STIBBS, F. C., Mount Pleasant, Kingswinford, near Dudley, Worcestershire. Aug. 11, 1932, No. 19743. [Classes 18 and 133.] A box of the kind adapted for carrying cotton &c. reels and other sewing requisites is provided with parts disposed upon the exterior of its sides and projecting therefrom, such parts being provided with means for carrying cotton &c. reels. As shown the parts consist of ribs formed by the abutting ends 11 of the arcuate sides 10 of the box which are riveted together and provided with eyelets 13 through which is passed a length of semi-flexible helicallycoiled wire 21 on which the reels are threaded, the ends of the wire being connected by a pin which screws into one end and is a push fit in the other. The sides are connected to the two-ply base by angle brackets, and a stiffening piece 17 is inserted within the sides, which may vary in number. A hinged lid 19, provided on its outer surface with a pin-cushion consisting of a substantially hemispherical piece of cork covered with velveteen &c., and on its inner surface with pockets 30 for needles &c. and loops 31 for scissors, &c. is prevented from opening too far by a strip 36 fastened to the piece 18 and to the lid, and is held closed by a socket 32 thereon engaging with a stud 33 on the opposite side of the box. The loose ends of the cotton &c. are held between the sides 10 and eyeletted clips 27. The wire 21 may comprise more than one length, with fastenings between the several ends. Instead of being threaded on a wire, the reels may be carried on horizontal rods detachably mounted on upwardly projecting pins carried by the ribs, or may be embraced at each end by spring clips having parts projecting into the holes in the reels. The ends of the reels may be covered by discs &c. of celluloid &c.
Patent GB-219180-A (GB)
Title: Improvements relating to the jacking up of motor vehicles
IPC: B60S9/06
Filed: 1923-08-02
Abstract: 219,180. Stevenson, J. F. Aug. 2, 1923, S t a n d s or supports. - Both wheels on either side are raised by means of a single jack on each side attached to the side frame member or to any other part of the vehicle. The mechanicallyoperated jacks, shown in Fig. 5, are arranged one on each side approximately midway between the front and rear axles and each includes a tube 1 adapted to be clamped to the side frames 3. Non-rotating screws carrying the feet 12 are raised and lowered bv nuts operated through bevel gearing from transverse spindles carrying operating handles 25 with two arms of different length to facilitate quick or slow operation as required. The running board may be supported by a bracket cast integral with the jack gear casing 6. To limit relative movement between the frame and axles when raising the jack, straps may be attached between the hub near each wheel. In the fluid pressure modification shown in Fig. 3, the tubular plunger 28 passes through packing 31 in the outer cylinder 1 and is retracted by a tension spring 33.
Patent GB-1300658-A (GB)
Title: Formulation of vitamin a esters
Inventor: REIF WERNER
IPC: A61K47/44
Filed: 1970-04-24
Abstract: 1300658 Vitamin A esters BADISCHE ANILIN. & SODA-FABRIK AG 24 April 1970 19803/70 Heading C2V [Also in Division A5] Vitamin A esters in a stable form are obtained by dispersing them in organic liquids in which the esters are more soluble at elevated temperature than at room temperature, the mean particle sizes of the esters being from 10 to 400 microns. Preferably at least 25% of the ester is present in dispersed form at room temperature and a clear solution is obtained when heated to 60‹ to 80‹ C. to enable the ester to be accurately dispensed. In examples Vitamin A acetate is dispersed in peanut oil and in heptane.
Patent GB-345178-A (GB)
Title: Improvements in gas ring mountings
IPC: F23D99/00
Filed: 1930-06-30
Abstract: 345,178. Burner mountings. EWART, J. W., 346, Euston Road, London. June 30, 1930, No. 19819. [Class 75 (i).] A gas ring 2 is screwed on aT-piece 3 fixed in the base portion 1 of a geyser and the gas cock is screwed through an opening in the part 1 into an elbow 9 connected by an elbow 7 and a tube 6 to the T-piece 3 so that the ring 2 and the cock may be readily detached independently of one another.
Patent GB-1374939-A (GB)
Title: Electrolylic zinc coating method
IPC: C25D3/22
Filed: 1973-04-27
Abstract: 1374939 Electro-depositing zinc; chromating zinc films INSTITUTUL DE CERCETARI TEHNOLOGICE PENTRU CONSTRUCTII DE MASINI 27 April 1973 20019/73 Headings C7B and C7U Zinc is electro-deposited in an alkaline bath containing Zn ions and NaOH (sodium zincate) in which 10-80 g/l sodium polyphosphate is included to block Zn ions. The bath may further include glue and piperonal (in methanol), as brighteners, sodium tartrate and/or fatty acid sulphonates as wetting agents. The polyphosphate may be prepared by boiling sodium tripolyphosphate (Na 5 P 3 O 10 ) or Graham salt (hexametaphosphate) (NaPO 3 ) 6  with NaOH. The articles being coated may be steel rods for ignition plugs; alloys of Cu (e.g. brass) or Al can be coated. The Zn film may be polished in a solution of CrO 3 , H 2 SO 4  and HNO 3  to obtain a light yellow film becoming white in NaOH solution; and dipped in a solution of Na 2 Cr 2 O 7 , NaCl and H 2 SO 4  to obtain resistance against corrosion and a gold colour.
Patent GB-187343-A (GB)
Title: Improved detachable tilting lamp shade holder
IPC: F21V17/00
Filed: 1921-07-26
Abstract: 187,343. Waite, H. J. July 26, 1921. Shade-holders.-In tilting lampshade carriers of the kind consisting of a ring which fits detachably on the lamp-socket and from which two upwardly bent shadesupporting arms B project, these arms have each pivoted at their upper ends a socket C, the lower end of which is flat and the upper end bent over to form a short tube with a longitudinal slit, which tube receives detachably and with slight tension an upright wire of the shade-frame, whereby the shade is firmly supported in any required angular position.
Patent GB-962807-A (GB)
Title: Improved fluorescent lamp and method of and apparatus for manufacturing such lamps
IPC: H01J61/24
Filed: 1960-06-08
Abstract: 962,807. Fluorescent discharge lamps. PATENT-TREUHAND-GES. FUR ELEKTRISCHE GLUHLAMPEN m.b.H. June 8, 1960 [June 12, 1959], No. 20118/60. Addition to 923,890. Heading H1D. A high output highly loaded fluorescent discharge lamp as in the parent Specification, which contains rare gas at a few mms. pressure and an amalgam having an atomic ratio of metal to mercury of not less than 0.5: 1, has the amalgam and a low melting point metal or metals provided as a compact body having a small surface area relative to volume. The compact body can comprise, for the amalgam cadmium or indium and for the low melting point metal, gallium and/or soft-solder such as an alloy of lead, tin and bismuth. The compact body can be formed from 1 part by weight of cadmium powder, one part of mercury and three parts of soft solder powder. The compact body can include an adherence-favouring substance in the form of an inorganic binder such as enamel or glass frit containing lead borate. The compact body can be in the form of a cylindrical disc or can be of rectangular crosssectional shape such as a cube. Apparatus for manufaoturing the lamp comprises first conduit means 10, Fig. 1, connected to vacuum means for removing part of the phosphor from the internal wall of the envelope, second conduit means 5, Fig. 2, provided with a recess 6 for receiving the compact body 4, heating-coil means 15 disposed about the second conduit means and compact body for softening the body and pneumatic means comprising a compressed air or inert gas supply such as nitrogen connected to the second conduit means for shooting the softened body against the part of the envelope from which the phosphor has been removed. The first conduit means 10 is provided with a pivotable connection 13 and a vacuum valve 11. The second conduit means 5 is provided with a heat insulating portion 7, a pivotable connection 16, a throttle valve 8 and a pressure reducing valve 9. The suction device can be incorporated in the depositing device by connecting the conduit means 5 to the valve 11 and the vacuum source by a valve and T- connector. During heating of the envelope and exhausting thereof, the compact body 4 can be maintained below its softening temperature by directing a blast of cool air against the portion of the envelope carrying the body.