baber/WOPTO huggingface dataset:
Patent GB-217269-A (GB)
Title: Improvements in and relating to luminous electric signs and devices
IPC: H01J61/42
Filed: 1923-02-07
Abstract: 217,269. Gratze, E. V. Hayes-. Feb. 7, 1923. Vacuum tubes.-A vacuous or gas-filled tube for use as a sign is rendered luminous by a high-tension discharge at a frequency of not less than' 500,000 per second, and with light of a different colour after the discharge ceases bv a phosphorescent material contained in the tube or a chamber contiguous thereto or incorporated in the glass. The phosphorescent material may be Iceland spar, calcium sulphide, or aluminium, and is preferably in the form of dust. The filling may consist of carbon dioxide, neon, argon, krypton or helium. A time switch or flasher may be included in the circuit. According to the Provisional Specification, the phosphorescent material may be contained in a part surrounding the tube. Specifications 4752/82 and 4098/10 are referred to.
Patent GB-432897-A (GB)
Title: Improvements in or relating to metal pots for matrix composing and line casting machines
IPC: B41B11/88
Filed: 1934-02-05
Abstract: 432,897. Pumps for molten metal. LINOTYPE & MACHINERY, Ltd., 9, Kingsway, London.-(Assignees of Mergenthaler Setzmaschinen-Fabrik Ges.; 25, Chausseestrasse, Berlin) Feb. 5, 1934, No. 3712. Convention date, Sept. 29, 1933. [Class 102 (i)] [See also Groups XVI and II] In metal-pots for type-bar-making machines, in which the pump-well b, Fig. 2, extends to the bottom of the pot, cooling of the metal in the throat i is prevented by the provision on the pot of an enlarged section n located beneath the throat, so that the molten metal contacts with the underside of the throat throughout the greater part of its length. The plunger c is formed hollow, and is operated by a lever e and a link d pivoted to the floor of the plunger. The top of the plunger has a tapered cover f, through which the link d passes, so as to minimize the danger of dross or metal entering the plunger when in its lower position. The upper wall of the throat has a rounded part m, to facilitate the passage of the metal. The pump-well may be formed by a sleeve g, Fig. 3, which is inserted in a socket h formed in the pot.
Patent GB-1080898-A (GB)
Title: Improvements in or relating to circuit arrangements for intermittent loads
IPC: H05B41/04
Filed: 1966-01-27
Abstract: 1,080,898. Control systems for discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 27, 1966 [Jan. 30, 1965], No. 3717/66. Heading H2H. A system for starting and supplying a gas or vapour discharge tube 4 comprises a silicon controlled rectifier 6 connected in parallel with the tube 4, the rectifier 6 and a capacitor 3 being arranged to form a voltage doubling circuit whereby to produce a high voltage for igniting the tube 6. An impedance 5 provides the ballast for the tube 6 and is furnished with a winding 16 which after the tube is ignited, provides a voltage which is rectified by a diode 17 and applied to a resistor 14 in opposition to the normal triggering voltage for the rectifier 6 obtained from a tapping 15 on a filament heating transformer 11 so as to render the rectifier 6 non-conducting after the tube 6 has been ignited.
Patent GB-339866-A (GB)
Title: Improvements in or relating to display apparatus
IPC: G09F19/12
Filed: 1930-02-04
Abstract: 339,866. Flettner, A. Feb. 4, 1930. Optical apparatus, applications of; cylinders, radial boards, and like elements, rotating.-In display apparatus of the type comprising a rapidly rotating casing containing a picture &c. near the axis of rotation which is seen by persistence of vision, from any position in the plane of rotation, a number of viewing slots are formed by thin plates 10, Fig. 2, arranged parallel to the axis of rotation, the inner ends of the plates being spaced away from the picture. Fig. 4 shows a modification in which the plates are disposed around the rim of the casing 1, and the picture is on an endless band 13 riding round rollers 14 rotated by any means, such as gearing driven by the casing. Two or more pictures 8 may be placed horizontally at the top of the casing 1, as shown in Fig. 5, and be seen by reflection in two or more inclined mirrors 15 through the slots between plates 10 arranged all round the casing. The mirrors 15 may be staggered as indicated in Fig. 7, to form a wind motor. The pictures 8 may differ slightly from one another to give a kinematographic effect.
Patent GB-107941-A (GB)
Title: Improvements in or connected with Motor Ploughs and other like Cultivating Implements.
Inventor: MASKELL JOHN WILLIAM
IPC: A01B3/58
Filed: 1917-03-16
Abstract: 107,941. Maskell, J. W. March 16, 1917. Addition to 13150/15. Ploughs; motor-implements: steering implements.-A motor-plough or like implement as described in the parent Specification is provided at its front end with a small wheel m mounted on an axle at the end of a rod m<2> fixed to a cross-shaft mounted in bearings in the machine frame. The wheel m runs in a furrow previously made by the plough and, by engaging the side of this furrow, holds the plough in a straight line against its tendency to turn to the one side due to the action of the lateral wheel h<1>. The wheel m is lifted during the turning of the plough by a hand-lever m<6> attached by a link m' to a crank-arm m<4> on the shaft carrying the rod m<2>.
Patent GB-668633-A (GB)
Title: Improvements in or relating to refrigeration
Inventor: DENSHAM COSTIN LANE
IPC: F25J3/02
Filed: 1949-02-11
Abstract: 668,633. Rotary engines. WADE ENGINEERING, Ltd. Feb. 6, 1950. [Feb. 11, 1949] No. 3855/49. Class 110(ii). [Also in Group XIII] A rotary engine having a pair of interengaging rotors in a casing is driven by a gas, the primary object being to cool and liquefy the gas or separate the components of a gaseous mixture by liquefying one of them. The engine is of the type described in Specification 633,818, an external machine being driven by one rotor shaft 32. Two rotors 21, 24 each have a projecting piston and a recess or expansion chamber. Plates 22, 25 are secured to the rotors and contain ports through which working fluid is admitted and exhausted. The rotor shafts 27, 28 are mounted in bearings 33, 34, and oil slingers 35 prevent lubricant from entering the working chamber. A drain 37 is provided. In Fig. 1 a compressor 10 feeds gas to a cooler 11 and then to an expansion engine 12. The exhaust from the latter passes through a pipe 14 to a container 15 from which liquid may be drawn through a pipe 16 and cooled gas through a return pipe 17. Make-up gas may be supplied through an inlet 18. The pipe 17 may be dispensed with and the container 15 vented to atmosphere.
Patent GB-588414-A (GB)
Title: Improvements relating to lawn mowers
IPC: A01D34/54
Filed: 1945-02-16
Abstract: 588,414. Lawn-mowers. WEBB & CO., Ltd., H. C., and TAYLOR, F. W. Feb. 16, 1945, No. 3978. [Class 6 (ii)] A lawn-mower has plates 4 which carry end bearings 3 for the cutting cylinder 2, the plates being pivotal on the side plates 5, of the main running frame, and being each pivotally connected to a link 7 engaging at its lower end with a pin 6 which may be adjusted vertically. Further, an eccentric 9 on a knob 10 interposed between each link and its suspending pin 11, is angularly adjustable about said pin for fine adjustment of the cutting cylinder, means being provided for retaining the eccentric in its adjusted position. The pin 11 has a reduced threaded end which passes through a vertical stop 12 in the side plate and through a spring 13 into engagement with a nut 14. The spring 13 overhangs the side plate 5 and engages with the serrated rim 18 of the knob 10. Coarse adjustment of the cutters relative to the ledger blade 19 is effected by unscrewing pins 6 and 11 and moving them bodily with the link 7 in their slots 8 and 12 and then retightening the nuts ; for a fine adjustment, only the pin 6 is loosened and the knob 10 moved so that the eccentric 9 can move the link 7 during which the spring 13 clicks over the rim 18. Pin 6 is then tightened, the knob 10 being retained in position by the spring 13. Specification 574,624 is referred to.
Patent GB-212376-A (GB)
Title: Method of attachment to mouthpiece of telephone transmitter
IPC: H04R1/08
Filed: 1923-02-10
Abstract: 212,376. Simpson, H. E. Feb. 10, 1923. Mouthpieces and attachments; sanitary and hygienic devices.-In means for securing attachments to the flared ends of telephone mouthpieces, of the kind employing a loose ring 2, the ring is provided with a cylindrical surface to receive a counterpart engaging surface on the attachment and a tapering bore for seating on the exterior of the mouthpiece 1, and the attachment abuts against the edge of the mouthpiece. The attachment may comprise an annular cap 4, which clamps between its inner face and the edge of the mouthpiece 1, a gauze diaphragm 6,. carrying a spring projecting inwardly to improve the acoustic qualities of the mouthpiece, an apertured antiseptic pad 7, and a washer 7<a>. The cylindrical surface of the union ring 2 may be external, as shown in Fig. 1, or internal as shown in Fig. 5, in which latter case the cap 4 may be provided with slots 4<a> for the reception of a key. The union ring 2 may be in two parts with cooperating pins and slobs, and may be provided with finger grips or the like by which it may be held when the attachment is screwed up. The attachment may be secured to the loose union ring by means of studs and bayonet grooves instead of by screwing.
Patent GB-295190-A (GB)
Title: Improvements in or relating to stackpipes, and the like
IPC: E04D13/08
Filed: 1928-02-09
Abstract: 295,190. Wyatt, W. Feb. 9, 1928. Spigot - and - socket joints.-In order to make a stack-pipe &c. unclimbable one of its sections is divided into two parts 1, 2 at 11 the upper part 2 being connected to the adjacent sections by rubber sleeves 9, 12 secured in place e.g. by a divided ring such as 10 or by a riveted sheet metal ring 13. The joints between the sleeve 12 and the section 1 and the sleeve 9 and the section above it are sufficiently loose to give when extra weight is added to the segment 2. Co-operating tongues are provided on adjoining sections which prevent displacement by wind &c. sideways but do not prevent forward displacement. In an alternative form, outward movement 'of the pipe end is prevented by spring tongues, the lower end being pivoted to a wall bracket.
Patent GB-790811-A (GB)
Title: Process for the production of laterally non-reversed positive copies by heat development
IPC: G03C8/40
Filed: 1956-02-09
Abstract: 790,811. Photographic image transfer by heat. AGFA AKT.-GES FUR PHOTOFABRIKATION. Feb. 9. 1956 [Feb. 11, 1955], No. 4116/56. Class 98(2) An exposed silver halide emulsion layer containing a developing substance is heated in contact with a transfer layer containing a diazo compound and also a salt containing a heavy metal in the anion and if desired an oxidizing agent, to form a laterally correct image in azo dye in the transfer layer. Acids or acid salts may be used to increase activity of transfer. The emulsion may be of silver chloride bromide or iodide, or mixtures thereof, and may be of any sensitivity, gradation, or silver content; and numerous colloids for the layers, developing substances, diazo compounds, heavy metal salts, oxidizing agents and other materials for use therein are quoted. Heating may be effected in a hot press or drying drum at 50-180‹C., preferably at 80-150‹C. Six examples furnish quantitative details for production of the two layers, thus in Example 1 30 G. of 1 - amino - 2 - naphthol, 30 G of potassiummetabisulphite and 45 G. of acetic acid are added to one litre of silver halide emulsion which may contain other additives and the mixture is cast on a paper support and dried; and for the transfer layer 8 G. of diazotized 1 - amino - 2 - naphthol - 4 - sulphonic acid, .4 G. of ammonium molybdate, 1 G. of sodium perborate, 80cc. of 10 per cent sulphuric acid, 500 cc. of 10 per cent polyvinyl alcohol and 100 cc. of glycerin with 500 cc. of water are mixed and cast similarly. After exposure the two layers are heated in contact preferably at 110-135‹C. for 5-20 seconds in a hot press and separated to give 'a bluish violet image in the transfer layer. A similar heat transfer process operating without the presence of the heavy metal salt is described. The manner of exposure of the silver halide emulsion layer so that the transferred image produced therefrom may be laterally correct is not described. Specification 655,273 is referred to.
Patent GB-387132-A (GB)
Title: Improvements in or relating to potentiometric circuit arrangements, for use, for example, in radio transmitters
IPC: H04L27/04
Filed: 1932-02-11
Abstract: 387,132. Automatic regulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Summers, L. L. B. ; Whitestone, Long Island, New York, U.S.A.) Feb. 11, 1932, No. 4131. Convention date, Feb. 11, 1931. [Class 38 (iv).] A potentiometer arrangement for supplying a fixed potential to a varying load circuit has tapping points upon an impedance supplied from a d.c. source and a valve circuit controlled as the load varies so as to shunt a variable amount of current across said tapping points to keep the potential drop between them constant. The arrangement is described as applied to a wireless transmitter, and replaces a coupling battery between valves 8, 10. The potentiometer comprises an impedance 30 with potential tappings 50, 42 shunted by paralleled valves 42, 44, the grids of which are biassed from a further tapping 54 which is adjusted to give the correct compensation for load changes. The impedance 30 is supplied with d.c. current from a full-wave rectifying and smoothing system comprising valves 32, 34, choke 48, and condensers 50<1>, the anode and filament circuits of valves 32, 34 and filament circuit of valves 42, 44 being energized by transformers 38, 36, 40 respectively, all fed from a transformer 46.
Patent GB-539457-A (GB)
Title: Golf club
IPC: A63B53/02
Filed: 1940-03-06
Abstract: 539,457. Golf clubs. SMITH, K. March 6, 1940, No. 4212. [Class 132 (ii)] The tapered socket or hosel 12, of the wooden head of a golf club is prevented from splitting in the region of its attachment to the shaft, by forcing on to the hosel a metal ferrule 22, internally screwthreaded and having an internal taper greater than the initial taper of the hosel. A sleeve 28 of nitro-cellulose material is provided to prevent displacement of the ferrule. In a modification, Fig. 4 (not shown) the ferrule is made in two separate and oppositely-threaded sections.
Patent GB-123751-A (GB)
Title: Improvements in and relating to Temperature-indicating Devices or Gages.
IPC: G01K1/24
Filed: 1919-02-20
Abstract: 123,751. Motometer Co., (Assignees of Schlaich, H.). Feb. 23, 1918, [Convention date]. Thermometers. - A thermometer, particularly intended for the cooling system of an internalcombustion engine, consists of a bulb 1 connected by a capillary tube 3 to an indicator 2. The latter consists of a Bourdon or like tube 10 formed into two series of co-axial turns 13, 15, connected together by an intermediate turn 14. The open end of the tube 10 is secured at 11 to tho casing 12, where it is also connected to the tube 3. The closed end of the tube 10 is secured to one end of a lever 37 which rotates freely around the spindle 31 carrying the pointer 30, the other end of the lever being secured to one end of a bimetallic compensating coil 39, the other end 40 of which is secured to the spindle 31. This coil 39 is so wound as to compensate for variations of temperature in the casing 2. The bulb 1, capillary tube 3, and Bourdon tube 10 are completely filled with alcohol or like liquid under an initial pressure of about 300 lb. per sq. in., a filling tube 49 being fitted for this purpose. The casing 2 is provided with a glass coverplate 26, secured by a screwed bezel 27, a flared ring 25 being fitted between the plate 26 and dial 24 ; the dial is secured to the outer ends of two supports 48, the inner end's of which are secured to the base-plate 12. The capillary tube 3 is shown in section in Fig. 4. The walls 45 are pressed inwards and the tube is surrounded by a protecting sheath 46 as described in Specification 125,361. It is led into the casing 2 through a flared aperture 43. In using the instrument, the bulb 1 is inserted in the cooling jacket of the internal-combustion engine and the indicator is mounted on the dash-board of the vehicle.
Patent GB-548260-A (GB)
Title: Improvements in or relating to devices for the parallel guidance of dental tools
IPC: A61C1/08
Filed: 1942-10-02
Abstract: 548,260. Hinges &c. KARLSTROM, K. A. S. March 29, 1941, Nos. 4259/40, 4260/40 and 4261/40. Convention dates, April 24, 1940, July 22, 1940, and Feb. 7, 1941. [Class 65 (ii)] [Also in Group VI] Apparatus for ensuring parallelism in pin holes drilled in teeth or other dental work consists of links 2, 3, Fig. 1, pivoted at 7, the link 2 being bored at 6 to receive the drill while the link 3 is held adjustably on a screwed pivot pin 4. The lower end of the pin beds in a recess 20 in a strap 10 while the upper end is received in a square hole 23 in a clamping member 11. The strap 10 is fixed relatively to the teeth while the member 11 is clamped on to it. To permit of slight adjustment several holes 23 are provided. The pin 4 may, alternatively, be sprung in or out of a bow-shaped mounting of springy metal. In another form, Fig. 6, the pin 4 is screwed through a ball member 35 and rests directly against a cranked part of a support or on a stud 39 secured to a base 34. The surrounding socket 36 can be engaged with or disengaged from lugs 37 of the base 34. If it is required to drill holes more or less perpendicular to the longitudinal axes of the teeth a pin bent through a right-angle is used. The guiding links 2, 3 for the drill are then mounted on the horizontal part of the pin 4 while the vertical part is mounted on a ball-and-socket joint, Fig. 10, forming part of a base 41 sunk in a mass of moulded material. The part 44 of the base is V-shaped and crimped at the edges. The ball- and-socket joint can be fixed in adjusted position by pinching-screws 48 and may be furnished with scales or division lines to facilitate setting.
Patent GB-537635-A (GB)
Title: Improvements in or relating to sound recording apparatus
IPC: G11B7/00
Filed: 1940-03-07
Abstract: 537,635. Optical sound recording. RADIO CORPORATION OF AMERICA. March 7, 1940, No. 4306. Convention date, March 31, 1939. [Class 40 (ii)] Relates to the optical recording of sound in variable density by means of a penumbra as described in Specifications 456,998 and 528,127, for example as shown in Fig. 1 by means of a lamp 10, lens 11, aperture mask 12, penumbra mask 13 adjustable against penumbra stop mask 14 in accordance with envelope of sound waves, lens 15, mirror galvanometer 16, lens 17, plate 18 with slit 19, and objective 22, and film 23. According to the invention errors due to non-linearity of photographic density-exposure curves of positive and negagive or non-linearity of amplifier are corrected by the introduction' of an aperture mask 20 at the pupil entrance of the objective 22 or at the mirror 16 or the lamp 10, this mask having a graded aperture 21 or a graded transparency calculated to compensate the errors.
Patent GB-355171-A (GB)
Title: Golf hole cups
IPC: A63B57/00
Filed: 1931-02-11
Abstract: 355,171. Golf. CROCKER, R. C., 2047, Sherwood Road, Toledo, Ohio, and CROCKER, S. C., Park Square Building, Boston, both in U.S.A. Feb. 11, 1931, No. 4336. Convention date, Feb. 13, 1930. [Class 132 (ii).] The usual metal cup a located in the hole of a putting green is provided with a non-resilient liner d that prevents enlargement of the mouth of the hole, provides an easily visible target for the player and acts as a cushion for the ball as it enters the hole. The liner is formed of waterproofed paper of a light shade and is frictionally secured within the cup by its lower notched and flared end d<4>. The upper end d<2> of the liner is offset to be close to the walls of the hole and bevelled so as not to decrease the effective diameter of the hole.
Patent GB-1340302-A (GB)
Title: Cooling apparatus
IPC: B29B13/04
Filed: 1972-02-01
Abstract: 1340302 Cooling granular material SNIA VISCOSA SOC NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA 1 Feb 1972 [4 Feb 1971] 4557/72 Addition to 1214345 Heading F4U Apparatus for cooling granular material according to Specification 1,214,345 is modified by the baffle positioned directly behind the inlet to the drum is to remove kinetic energy from pneumatically conveyed granules flowing into the drum, the lifting and dropping means within the drum extend substantially the whole length of the drum, and an outlet is of diminishing cross-sectional area in order to re-accelerate the gas stream which outlet is formed by ducts. In a modification, a further drum 110 having lifter blades 130 is spacedly and coaxially positioned within the drum 10. Both the outer surface of the drum 10 and inner surface of the drum 110 are cooled by water which is sprayed on to the top of the outer drum and allowed to flow through tubular passages 125 into the inner drum and subsequently discharged to the outside of the outer drum.
Patent GB-625180-A (GB)
Title: Improvements in high frequency devices for heating or bonding thermoplastic materials
IPC: H05B6/60
Filed: 1947-02-17
Abstract: 625,180. Seaming non-metallic sheet material. RADIO CORPORATION OF AMERICA. Feb. 17, 1947, No. 4563. Convention date, Feb. 15, 1946. [Class 42 (i)] [Also in Groups XI and XXXV] In bonding thermoplastic material between a pair of electrodes supplied with high-frequency current, means responsive to the material thickness are used to maintain the voltage gradient between the electrodes substantially constant. In an embodiment, the material passes between a grounded roller electrode 1, Fig. 1, and a roller electrode 3, connected to a source of high-frequency energy 7 by the inner conductor of a concentric line 5. Electrode 3 is spring-biassed to maintain pressure against roller 1, and has an extension 9 spaced from a grounded plate 11, constituting a capacity which augments changes in the electrode capacity. A point on the voltage-capacity curve (not shown) for the concentric line is so chosen for the thinnest material, and obtained by adjusting a capacity 13, that when a thicker material comes between the electrodes the voltage will increase. In an electronic sewing machine the concentric line 5, Fig. 4, is mounted under a bed-plate 21 and its outer conductor is grounded thereto. The inner conductor has an enlarged section at its outer end which forms an adjustable capacity with a grounded ring adjustably movable in a slot and held by a setscrew 25. Electrode 3 extends through an aperture 27 in the bed-plate, and comprises a metallic ring, Fig. 3, supported by an insulating washer 29 on a rotatable shaft 31. The shaft is supported by an arm 39 pivoted in supports 41 and 43, and a pin 45 connected with a spring 47 forces electrode 3 against electrode 1. Highfrequency energy is applied through a brush 49 connected to the inner conductor of the concentric line 5. Electrodes 1 and 3 are motor driven, the latter through a gear-wheel 33 and coupling elements 35 and 37. A hand or foot mechanism may be provided for raising electrode 1 when loading the machine. Specification 556,292, [Group XI], is referred to.