baber/WOPTO huggingface dataset:
Patent GB-1144442-A (GB)
Title: Improvements in or relating to microwave amplifiers utilising tunnel diodes or othernegative-resistance elements
Inventor: EASTER BRIAN
IPC: H03F3/12
Filed: 1965-04-28
Abstract: 1,144,442. Tunnel diode amplifying circuits. GENERAL ELECTRIC CO. Ltd. 28 April, 1966 [28 April, 1965], No. 17862/65. Heading H3T. [Also in Division H1] In a microwave amplifier having a tunnel diode or other negative resistance device connected in series with a D.C. blocking capacitor between the conductors of a two-conductor transmission line, the capacitor comprises an auxiliary two-conductor transmission line, the end of which remote from the diode is terminated by a mass of lossy material through which passes a conductor for supplying bias to the diode, being connected to one of the conductors of the auxiliary line. The arrangement is described as applied to an amplifier comprising a circulator (Fig. 1, not shown) to the ports of which are respectively connected a microwave source, a load and a tunnel diode amplifying unit. In one embodiment, the latter unit comprises a conductive block 11 forming the outer element of a concentric transmission line 8, the inner conductor 12 lying in a hole 13; one end terminates in a loading resistor 28 and the other in connector 10 for connection to the circulator. The tunnel diode 9 is located on and supported by a cylindrical member 14 lying in transverse hole 15 and being separated from the block 11 by a layer 16 of insulating material: member 14 forms with block 11 a transmission line slightly less than a quarter-wavelength long at the mean operating frequency. Member 14 is continued at reduced diameter as shank portion 17, which is surrounded by a cylindrical mass of lossy material 18, e.g. iron dust embedded in synthetic resin. Conductive washer 19 is fixed on shank 17, the assembly being supported by means of insulated member 20 and coil spring 21: the bias source 23 is connected to washer 19 by means of lead 24 passing through hole 22. This hole continues into the block 11 to house resistor 25 which is part of the biasing circuit. Connected to line 8 opposite the tunnel diode is stub line 26, which is provided with a short-circuiting plunger 27 and used for tuning out the diode reactance. Two additional stubs 29 and 30 of coaxial transmission line are also connected to line 8 on either side of stub 26 at points spaced a quarter-wavelength away at the mean operating frequency. Stub 29 is an open-circuited quarterwavelength stub provided to ensure stability for the amplifier, while stub 30 is a shortcircuited quarter-wavelength stub and increases the operational bandwidth of the amplifier. The Specification also describes an alternative embodiment employing strip lines (Figs. 4-6, not shown). This comprises a block of conductive material upon which strip lines are supported by means of concentric lines formed in the block, the strip lines being tuned by means of screws located in the block or shortcircuiting plate-like conductive members located between them and the block.
Patent GB-596014-A (GB)
Title: Improvements in watch cases
IPC: G04B37/11
Filed: 1945-07-13
Abstract: 596,014. Watch cases. ARNOUX, C. July 13, 1945, No. 17966. [Class 139] A fluid tight watch case comprises a threaded movement case, a packing and a back provided with a projecting rim, assembled together by means of a threaded fixing ring screwed on said movement case. In the embodiment shown in Fig. 1, the movement case 1 is threaded at 4 and has a groove in which rests a packing 6 on which is placed the rim 9 of the back 8. The fixing ring 10 screws on the movement case 1 and presses the rim 9 against the packing so giving a fluidtight joint. The fixing ring 10 is provided with a surface 12 which lies adjacent but not touching the back 8. In another embodiment, not shown, the fixing ring 10 is externally threaded and the movement case is internally threaded. In the embodiment shown in Fig. 5, the movement case 14 has an annular notch 32 into which fits a thin outer back plate 31 which lies above the fixing ring 27 and the back 19. This outer back plate may be soldered on the fixing ring.
Patent GB-1242462-A (GB)
Title: Starting arrangements in penning-type ion pumps
IPC: H01J41/20
Filed: 1969-04-08
Abstract: 1,242,462. Ion pumps. THOMSON-CSF. 8 April, 1969 [11 April, 1968], No. 18003/69. Heading HID. A Penning-type ion pump has an auxiliary starting anode 5 capable of operating at a higher temperature than the main anode(s). The main anodes and cathodes (not shown) are located in the field M of magnet pole pieces 2 and 3 and may comprise a system of flat parallel plates which may be apertured. In the arrangement shown the auxiliary anode 5 is a sphere and an auxiliary cathode is formed by an annular portion 6 of the envelope 11, which portion or the whole of the envelope is made of Ti so that the starting electrodes also perform a pumping action. The auxiliary anode 5 is made of Ta or Mo while the main anodes are made of stainless steel or Ti. In an alternative arrangement (Fig. 5, not shown) an auxiliary rod anode is located axially in a cylindrical appendage to the main envelope 11, which appendage is surrounded by toroidal magnets and acts as an auxiliary cathode.
Patent GB-482738-A (GB)
Title: Snow and stormproof roofing tiles
IPC: E04D1/16
Filed: 1936-06-30
Abstract: 482,738. Roofing tiles. McCAFFREY, sen., A., and McCAFFREY, jun., A. June 30, 1936, No. 18079. [Class 87 (i)] A square or rectangular clay, metal, or asbestos-cement tile is provided with ribs F, F<1> on its upper face along its two upper edges and on its lower face along the other edges. A hanging nib G and nail holes in the ribs F are also provided. A rectangular extension H may be formed at the top corner of the tile and the ribs F may have extensions E to engage a recess El of another tile. Reference has been directed by the Comptroller to Specification 819/00, [Class 87].
Patent GB-710394-A (GB)
Title: Improvements relating to gloves
IPC: A41D19/00
Filed: 1952-07-17
Abstract: 710,394. Gloves. DUMAS, L. E. J. July 17, 1952, No. 18099/52. Class 141 A glove, closely shaped to the hand. is provided in the part 10 covering the back of the hand with one or more slits 11 extending in the direction of the fingers and closed by pleated inserts 17, which relieve the hand of compression and avoid excessive stressing of the stitching of the glove when the hand is closed. In Fig. 1 a zip fastener 21 extends along the part 10 from the edge 19 to a point approximately equidistant from the slits 11. A zip fastener may be provided in line with and in extension of the lateral stitching along the glove at the side of the little finger. the part 10 being shaped to expose a wrist watch 24, Fig. 5 and Fig. 3 (not shown). In another embodiment the glove has an elastic cuff made of knitted material such as wool. The thumb, index finger and crotch may be covered by a flexible protective strip 35 having at least the same width as the front surface of the index finger and extending with its extremities almost to the end of the index finger and thumb and secured to the glove along its edge only by lines of stitching -which lie outside the crooked line of stitching securing the thumb to the glove in the region of the crotch.
Patent GB-858938-A (GB)
Title: Method of and means for comparative checking and precision measurement of the circumference of soft or pressure-yielding cylindrical or rod-shaped objects, for example cigarettes and lengths of cigarette filter
IPC: A24C5/34
Filed: 1957-06-07
Abstract: 858,938. Measures of length. MULLER, K. H. June 7, 1957 [June 13, 1956], No. 18134/57. Class 106 (2). [Also in Group XVI] In a method of measuring the circumference of a yielding rod-shaped object such as a cigarette 4 by rolling the cigarette over inked type to print a graduated marking 5 round its periphery, the marking comprises a measuring scale and a vernier scale printed from type 2, 3. Apparatus for carrying out the method comprises a frame 41 with rails 52 in side walls 42 for guiding a slide 53 with scales 60, 61 set in a recess 59. The cigarette 63 is placed on a foam pad 45 and the slide 53 is pushed to the left so that an inked roller 51 inks the scales 60, 61 before they roll over the cigarette 63. In another apparatus a foam-lined slide rolls the cigarette over the scales. Various scales are described and in one arrangement the vernier scale may be set relative to the measuring scale by an adjusting screw, Fig. 6 (not shown), to preset the apparatus for a prescribed size of cigarette. The space between the pad and the scales, accommodating the cigarette, may be made adjustable preferably by using an inclined plane, Fig. 12 (not shown). The scales may be inked by a pad pivoted for moving to and from inking position, Fig. 9 (not shown).
Patent GB-585233-A (GB)
Title: Improvements relating to electroplating apparatus
IPC: C25D17/20
Filed: 1944-09-22
Abstract: 585,233. Electroplating apparatus. HARRISON (BIRMINGHAM), Ltd., and ILES, H. Sept. 22, 1944, No. 18140. [Class 41] A perforated insulating barrel b<1> provided with end-plates b <2> is rotatably mounted on an axial cathode rod f provided with spaced insulators q and connected to and supported by metal conductors c passing through insulating arms a extending above the electrolyte level and suspended from a cathode bar e. In order to prevent access of electrolyte to the conductors where not required the ends of the rod f are enclosed by insulating sleeves g secured at one end to the arms a and at the other to the rod by a nut o engaging a thread on the rod. A locknut p may be provided. Each arm a is provided with an insulating boss formed with a spigot n engaging a socket m in a boss provided on the end-plate b<2>. In a long barrel one or more partitions i may be provided. The barrel is driven by a belt h. The barrel is polygonal, one panel being removable for insertion of the work.
Patent GB-490093-A (GB)
Title: Improvements in wireless receiving sets
IPC: G05G1/08
Filed: 1937-06-30
Abstract: 490,093. Adjusting wireless apparatus. GENERAL ELECTRIC CO., Ltd., and McAINSH, N. J. June 30, 1937, No. 18160. [Class 37] In a wireless receiving set, particularly a television receiving set, a rotary potentiometer resistance 2 having a potential at one end of more than 100 volts above earth is provided with an earthed collar 6 the earthing-spring 10 serving also to indicate a predetermined position of the resistance. The operating shaft 4 of the resistance 2 is interrupted by an ebonite cylinder 1. The collar 6 has a flange 7 upon which bears the leaf spring 10, earthed to the frame of the set by a screw 12. In the edge of the flange 7 is a notch 13 into which the spring 10 enters at a predetermined position and thereby opposes rotation by a force that is appreciable but easily overcome. A number of such notches may be provided.
Patent GB-1333795-A (GB)
Title: Electric signal circuits
IPC: A61B5/0215
Filed: 1971-05-28
Abstract: 1333795 Electro-medical apparatus; peak value detectors AMERICAN OPTICAL CORP 28 May 1971 [1 June 1970] 18172/71 Headings G1N and G1U The values of peaks of an analogue signal are displayed at 50 by applying the signal to the device 50 and to a peak detector 46, the detector 46 providing a command signal simultaneously with the occurrence of a peak, and a by-pass inhibiting detection of peaks below a specific level which decreases after detection of a peak, the command signal being applied to the device 50 to enable the device 50 to display the value of the analogue signal, occurring simultaneously with the command signal. The command signals are passed to a rate limiter 48 which has maximum and minimum rate limits for the command signals. The limiter 48 may be omitted, Fig. 1 (not shown). As shown in Fig. 3, an analogue signal representing the pressure in the heart is applied to an amplifier 62, the output of which maintains transistor 66 conducting until the occurrence of the systolic pressure peak at which time it is blacked. The command signal is provided from the collector of transistor 66 via a differentiating circuit 70, 72, 73, and detection of succeeding lower peaks is inhibited due to the slow discharging of a capacitor 75. The transister 66 may be replaced by a diode. The command signal is applied to vary the threshold of a uni-junction transistor oscillator acting as a rate limiter. In an alternative, Fig.11 (not shown), the rate limiter is provided by an astable multi-vibrator.
Patent GB-1474558-A (GB)
Title: Self-advancing mine roof supports
IPC: E21D23/00
Filed: 1974-04-26
Abstract: 1474558 Advancing mine-roof supports BECORIT GRUBENAUSBAU GmbH 26 April 1974 [19 May 1973] 18263/74 Heading E1P In an advancing mine roof support comprising two relatively advanceable roof engaging members 4 and 9, 10 mounted on a common base a structure supporting the latter roof-engaging member on the base has laterally extensible means 15, 17 for abutting an adjacent support. The member 4 is supported on a base 1 by props 2, 3 whilst the member 9, 10 is likewise supported thereon by a prop 11 adapted to be pivoted about the base by a jack 12. The means 15, 17 is laterally extended by jacks 18 and the support is provided with a wrap-round shield 5, prop aligning devices 6 and a deflector plate 14.
Patent GB-125892-A (GB)
Title: A New or Improved Machine for the Production of Screws, Nuts and like Machined Parts.
Inventor: BAXTER WILLIAM
IPC: B23B3/16
Filed: 1918-11-07
Abstract: 125,892. Baxter, W. Nov. 7, 1918. No Patent granted (Sealing fee not paid). Lathes.-A turret lathe of the vertical type has a hollow spindle F through which the work is fed by gravity. While the stock rests on a stop in one of the holes E in the turret C which is raised by a lever L until the collar S on the index pin G corresponding to the particular hole E engages a fixed stop H, the jaws C<2> are caused to grip the work by the downward pressure of an internally-tapered nose-piece D' operated by a handlever (not shown). The taper of the nose-piece D' is such that when the pressure is relieved, the work is still gripped. The turret C is rotatably and slidably mounted on the pillar A, and when it has been lowered sufficiently for the previous tool to clear the work, an inclined pivoted cam Q engages one of the bars J and rotates the turret into position for the operation of the next tool. As each tool is raised into contact with the work, it forces the spindle F upwards until the clutchpart B' engages the clutch-part W of the forward driving pulley, which is mounted on the stationary bush V. When the tool is lowered, the clutch-part A' and the reverse pulley X may be; brought into co-operation. The spindle F may be ;held normally in mid-position by a spring-supported roller T'. The pulleys W, X may be driven by one belt passing over guidepulleys E<1>, F<1>, G<1>. A holder I' having a ring- like portion H' pivoted on the pillar A may be provided for turning or parting tools, and may be moved by a handle J', adjustable stops M<1> determining the range of movement. A standard O<1> and guide O<2 >may be used to steady the upper end of the stock.
Patent GB-205153-A (GB)
Title: Improvements in type setting apparatus
IPC: B41B3/00
Filed: 1922-07-04
Abstract: 205,153. Bullock, C. A. H. July 4, 1922. Setting type; keyboards.-In apparatus of the kind described in Specification 189,217, in which the ejected type is taken by the fingers of the operator, the ejecting-mechanism is so constructed that the type to be abstracted is raised by a spring-supported plunger to a position in which it is almost clear of the rest of the type in the channel, so as to facilitate its removal. Type-channels 3, Fig. 1, having detachable ejecting-units 4, are mounted in a frame 1 provided with legs 2. Each ejecting-unit comprises a casing 5, Fig. 3, in which slides a spring plunger 11 having a projection 12 on to which two or more type move when the plunger is depressed, and by which the type are raised when the plunger is released. One or more fixed projections 14 support the lowest of the raised type, and the others slide or are pushed back when the plunger is again depressed. The type resting on the projections 14 passes through an aperture in a key or finger-piece 15, when the plunger is depressed, and is grasped by the fingers of the operator.
Patent GB-103118-A (GB)
Title: Process for the Manufacture of Sodium Fluoride with the Production of Bye-products.
Inventor: PAUL LEON HULIN
IPC: C01D3/02
Filed: 1916-12-22
Abstract: 103,118. Hulin, P. L. Jan. 6, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Ammonium fluoride and chloride.-Ammonium fluoride which may be produced by heating calcium fluoride and ammonium sulphate, is reacted with sodium chloride solution to obtain ammonium chloride and sodium fluoride, the latter being separated by cooling. The remaining sodium fluoride is removed as cryolite by adding aluminium fluoride, and the ammonium chloride solution may be further purified by adding barium chloride and then ammonium carbonate or sulphide.
Patent GB-905001-A (GB)
Title: A process for the production of 1,4-cis-polydienes
IPC: C08F136/06
Filed: 1961-05-23
Abstract: 1,4-cis-polydienes, e.g. polybutadiene, and polyisoprene, are made by polymerizing the diene with a catalyst comprising a compound of a metal of Group VIII of the Periodic System according to Mendel<\>eeff, and an organometallic compound of a metal of Group II and III, of the Periodic System, in the presence of a diluent or solvent which has a water content of 0,0001 to 0,090% by weight. Diluents mentioned are butane, hexane, isopropylcyclohexane, benzene, toluene and tetrachlorethane.  The catalyst used in the examples is a mixture of cobalt chloride and ethyl aluminium sesquichloride.  The polymer is recovered by conventional methods.
Patent GB-747678-A (GB)
Title: Vacuum flask
IPC: A47J41/02
Filed: 1953-07-03
Abstract: 747,678. Vacuum-jacketed vessels. ALADDIN INDUSTRIES, Inc. July 3, 1953 [July 9, 1952], No. 18535/53. Class 64(2). [Also in Group XVII] In a vacuum flask an annular member, e.g. of rubber, has one portion formed as a sealing gasket 29 of rectangular cross section for resting against the inwardlyturned lip 24 of the casing collar 15 of the flask while the remaining portion is pressed into seating engagement at its inner edge 31 with the inner glass vessel 11 to provide an outwardly-flaring pouring lip 30.
Patent GB-1196125-A (GB)
Title: Sealing Gaskets for Container Closures
Inventor: DAVENPORT NOEL ERNEST
IPC: B65D53/00
Filed: 1967-04-21
Abstract: 1,196,125. Linings for container closures. W. R. GRACE & CO. Ltd. 28 Sept., 1967 [30 Sept., 1966; 21 April, 1967], Nos. 18552/67 and 23215/67. Heading B8T. [Also in Divisions C3 and B5] Sealing gaskets for container closures comprising a block copolymer of styrene and butadiene or of vinyl pyridine and butadiene may be obtained by conventional moulding techniques and also by (a) compacting a pellet of the polymer to a thin disc in a closure shell; (b) reheating until it has partially reverted to its original shape; and (c) then moulding under pressure to the desired final shape by a cold moulding member. Optionally, the closure shell may be further heated prior to step (c). Certain olefin polymers may be blended with the block copolymer prior to moulding.
Patent GB-220619-A (GB)
Title: Improvements in safety explosives
IPC: C06B31/48
Filed: 1924-08-06
Abstract: 220,619. Unger, N. A. Aug. 18, 1923, [Convention date]. Explosives.-Ammonium nitrate is mixed with ferrosilicon or silicon, and nitroglycerine, which may be gelatinized with 4 per cent of nitrocellulose. Part of the ammonium nitrate, up to 10 per cent, can be replaced by an alkali nitrate; and part of the nitroglycerine may be replaced by picric acid or trinitrotoluene.
Patent GB-161880-A (GB)
Title: Improvements in the manufacture of balls for ball bearings and the like
IPC: B21H1/16
Filed: 1920-07-05
Abstract: 161,880. Adams, A. A. July 5, 1920. Rolling balls.-In a machine for the manufacture of steel balls for ball bearings &c., a heated or cold rod 24, placed in the opening of a tapering recess formed between a die-block 9 and a revolv. ing roller 15, is severed or partially severed by the edges 14, 19 between grooves in the die-block and in the roller, and is moulded into balls by the grooves. The lower part 21 of the die-block, which may be detachable, as shown, is made concentric with the roller. Supplementary grooves, to receive te excess metal, may be formed in the grooves in the die-block and roller, the ridges thus formed on the balls being afterwards removed. '
Patent GB-649466-A (GB)
Title: Improvements relating to cleaning or degreasing apparatus
IPC: C23G5/04
Filed: 1948-07-13
Abstract: <PICT:0649466/III/1> In a cleaning or degreasing apparatus of the kind comprising a vessel 1 housing a rotatable perforated drum 6 for the articles to be cleaned or degreased, and a horizontally-disposed condensing means 4 for the volatile grease solvent used, the condensing means being displaceable to permit passage of the perforated drum, the apparatus is provided with means for selectively supporting and rotating the drum in either of two positions at will, namely below or above the level of the condensing means.  In the form shown, the means comprise a pair of spaced rollers 8, 8 journalled in the end walls of the vessel in each of the two positions of the drum, forming in each case a cradle for the stub axles 10 of the drum.  One of the rollers 8 in each of the upper and lower pair is driven by chains 11 and 14 respectively through sprocket-wheels from a motor (not shown).  In a modification, the pairs of spaced rollers 8, 8 on one end wall of the vessel may be replaced by an open journal bearing in each case.  In the form shown, the condensing means comprise two groups of gilled tubes 4, 4 mounted so as to turn about axes 5, 5 either to the horizontal position shown or to vertical positions close to the side walls of the vessel.  The upper and lower sets of rollers 8, 8 are preferably vertically off-set to opposite sides of the longitudinal axis of the vessel to facilitate transfer of the drum from one position to the other.  Such transfer can be effected by suitable lifting and lowering mechanism in conjunction with a yoke 17 attached to the stub axles 10.  In operation, the articles are cleaned in the rotating drum in the position shown, the vapours of the solvent, boiling in the bottom of the vessel, rising therethrough and falling as a rain of condensate thereupon from the condensing means 4, 4.  The drum is then lifted into the upper part of the vessel, the condensing means 4, 4 being displaced for this purpose, where it is again rotated to dry the articles being cleaned.
Patent GB-889049-A (GB)
Title: Veterinary compositions comprising prednisolone 21-trimethylacetate
IPC: A61K31/573
Filed: 1959-06-02
Abstract: Veterinary compositions comprise from about 1 to 50 mg. per millilitre of a pharmaceutical carrier of prednisolone 21-trimethylacetate.  The preferred concentration range is 10 to 25 mg./ml. and the preferred dose (for cattle) is about 50 to 500 mg. The compositions are preferably of a form suitable for intramuscular injection and particularly in the form of injectable suspensions. The carrier may be water or a vegetable oil and may additionally contain conventional stabilizing agents, preservatives and wetting agents.  It is stated that concurrent administration of glucose with the compositions of the invention enable lower doses to be effectively used.  Specification 792,656 is referred to.