baber/WOPTO huggingface dataset:
Patent GB-661969-A (GB)
Title: Improvements in or relating to crystal contact devices
IPC: H03D9/02
Filed: 1949-02-10
Abstract: 661,969. Wave-guides. GENERAL ELECTRIC CO., Ltd., JAMES, E. G., and LINDELL, A. O. E. Feb. 10, 1950 [Feb. 10, 1949], No. 3746/49. Class 40 (viii). [Also in Group XL (c)] A crystal contact device comprises a section of wave-guide closed at one end adapted for coupling by a flange 2 to another section at the other end and provided intermediately with opposite apertures 5, 6 in which are supported by supporting members 9, 10 soldered to the outside of the wave-guide a co-operating crystal 15 and whisker 21 respectively, one of which is conductively connected to the guide and the other insulated from it, and one supporting member 10 is formed as the outer member of a coaxial line output socket or plug; the inner member 23 of which is connected to the insulated crystal contact member. The crystal is secured to a push-fit closed metal cylinder 13 soldered after adjustment in the hollow supporting member 9. The whisker 21 is secured to a metal pin 19, projecting into or through but spaced from the aperture 6, the pin being integral with the plug pin 23 and a flange 22 which is secured to a ceramic insert 18 cemented between the wave-guide and member 10. The gap 26 between the pin 19 and aperture 6 is effectively short-circuited by the dimensions of the insert 18 at the propagation frequency in the guide. If projecting into the guide, the pin 19 may be tapered to increase the bandwidth. A plug 3 soldered after adjustment in the end of the wave-guide matches the crystal device to the wave-guide or a matching screw may be used. A mica window 27 at or near the other end of the guide completes the hermetic sealing of the device. The device may be used as a mixer of oscillations fed in at one end.
Patent GB-1445921-A (GB)
Title: Superconductors
IPC: H01B12/10
Filed: 1974-01-28
Abstract: 1445921 Superconductors IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 13 Jan 1975 [28 Jan 1974] 03830/74 Heading H1A A composite superconductor assembly (Fig. 2 -not to scale) comprises a plurality of filaments of one component of a superconductive intermetallic compound, each having a layer of that compound on them and being embedded in a matrix material non-superconductive at 5K, the filaments having a diameter of 0À0005 to 0À0020 cm and the superconductive layer having a thickness of 0À00005 to 0À00020 cm. Under tension of the composite the intermetallic compound is subject to tension along three mutually perpendicular axes due to the values of poissons ratios for the materials and the composite is undamaged by 2% enginering strain. The filament may be Nb and the superconductor Nb 3  Sn, and the matrix material may be Cu or a Cu-Sn alloy. A core of further metal, or a diffusion barrier (e.g. tantalum), or both may be provided in the filaments. Preferably the interfilament distance is less than the filament diameter and the ratio of matrix material to filament material is between 3 : 1 and 1 : 1 by volume.
Patent GB-1365461-A (GB)
Title: Sanitary closets
IPC: A47K7/08
Filed: 1973-01-26
Abstract: 1365461 Sanitary closets W LINARES 26 Jan 1973 [27 Jan 1972] 3858/72 Heading E1C A sanitary closet for use by disabled persons utilizes a roll of strong tissue R which is placed on a spindle G 3  in a housing G and is threaded successively between driving roller K 1  and pressure roller H, over idler roller I 1 , under tensioning roller I 2 , over a roller D positioned in the seat aperture of a closet seat E, around a second driving roller K 2 , under a guide roller M and to a take-up spool within a casing N, the arrangement being such that when a person using the closet sits on the seat and puts the driving wheels into operation by depressing a start button S the tissue in passing over the roller D wipes between the user's legs and carries the excrement &c to the takeup spool, which is removed periodically to disposed of the accumulated waste. The roller D may be adjusted as regards its fore-and-aft position by manipulation of a lever F which is connected to a slide block J on which the roller D is mounted resiliently for up-anddown movement by a spring-loaded plunger W. The start button S is mounted on the lever F and closes a switch to energise a motor O which drives, e.g. via a driving cable P, a drive pulley arrangement L for a driving band which engages pulleys U fixed to the driving rollers K 1 , K 2 . The motor also drives the take-up spool via a belt-and-pulley arrangement and a slipping clutch. A warning lamp and buzzer or bell G 2  is operated through a micro-switch G 1  when a feeler arm of the micro-switch resting on the roll of tissue in housing G senses that the roll is nearly used up.
Patent GB-179290-A (GB)
Title: Improvements in pocket pencil cases
IPC: B43K21/08
Filed: 1921-02-02
Abstract: 179,290. Harley, A. G. Feb. 2, 1921. Pencil-holders.-In a pencilholder of the type provided with lead-propelling mechanism 3 located adjacent to the writing-point 5 and connected to a rotatable control cap by an inner tube 2, a spare-lead container is provided in the form of a tube 1 within the rear end of the tube 2 and closed at its inner end 10. The tube 1 or the tube 2 may be provided with a part 6 by which the container may be held stationary whilst the control cap, which serves as a screw cover for the container, is screwed on or off. The tube 1 may be integral with, or separate from and attached to, the tube 2.
Patent GB-945594-A (GB)
Title: Negative holders for photographic printing apparatus
Inventor: HAVILAND DOUGLAS LLOYD
IPC: G03B27/62
Filed: 1960-02-04
Abstract: 945,594. Photographic printing apparatus. PAKO CORPORATION. Feb. 4,1960, No. 3971/60. Heading G2A. A negative holder for photographic printing apparatus comprises a support having a substantially horizontal top formed with an opening therein through which printing light may pass, a mask carried by said top and having an oblong opening corresponding with the portion of the negative to be printed and registering with the opening in said support, holding means for holding the negative in said mask in either of two positions with reference to the opening therein, a frame overlying said support and having an opening therein registering with the opening in said top, an upright carried by the support disposed outwardly of the opening in the top, and having a clear path from front to back and from side to side over which the negative or a series of such negatives in strip form may be moved longitudinally past said mask, pivot means between said frame and upright supporting said frame for swing- ing movement toward and from the top of said support and clamping means carried by said frame and engageable with the negative or negative strip to hold the same in printing position. As shown (Fig. 5) the support having a substantially horizontal top comprises an insert 74 in the table top 30 of a printing apparatus (described in Specification 945, 593), under which insert is carried a lamp 70, a heat filter 91, and a neutral density wedge 92, and in an aperture 945 which insert is carried a diffusing plate 93. A mask 98 is supported on the insert 74, is surrounded by a frame 96 screwed to the insert, and carries a resilient clamp 120 and a number of stops 123 (Figs. 4 and 6) for guiding the film strip 100 over the said mask. Above this mask, a U-shaped frame 124 is pivoted by means of a shaft 104 fixed therein and a bearing 105 in an upright 129 secured to the frame 96. This frame 124 has recesses 158 formed therein for receiving an apertured clamp plate 101, is provided with spring pressed balls 159 for resiliently holding the plate 101 in position and is connected by means of a lever 108, link 111, and other linkage (described in detail in the Specification) to a knee operated lever, for raising and lowering thereof. The frame 124 is continuously urged by a spring acting on link 111 into its film clamping position, but, except when an exposure is about to be made, is held a short distance away from this position by electromagnetically controlled abutment means acting on the link 111. By this means, provision is made for final adjustment of the negative position before exposure.
Patent GB-509333-A (GB)
Title: Improvements in couplings for toy trains
IPC: A63H19/18
Filed: 1938-02-09
Abstract: 509,333. Couplings for toy railway vehicles. SMITH, D. A. R., and MECCANO, Ltd. Feb. 9, 1938, No. 3984. [Class 132 (iii)] A coupling for toy railway vehicles comprises two members 2 of resilient strip metal extending in substantially co-planar relation from the adjoining ends of two vehicles, each member being provided with a projection 5a, and an aperture 4 at its outer end, the projection 5a on one member of the coupling being adapted to hook into the aperture 4 of the other coupling member when the outer ends of the members mutually approach and overlap to effect engagement. The member 2 is T-shaped having an arcuate slot 4 in the head and two projections 5a, 5b inclined towards one another. A V-member 10 engaging slots in the member 2 attaches it and a yoke bearing the wheel-axle to the carriage. When two vehicles approach, one coupling member rides over the other the hook 5a of the upper member engaging the slot 4 of the other. The projection 5b acts as a stop for the front 2b of the lower member. The arcuate slot allows the engagement of the coupling on bends.
Patent GB-159143-A (GB)
Title: Process of treating ore and like materials
IPC: C22B1/16
Filed: 1921-02-04
Abstract: 159,143. Trent Process Corporation, (Assignees of Trent, W. E.). Feb. 21, 1920, [Convention date]. Agglomerating processes; dry processes of extracting metals.-Finely-divided ores, slimes, &c. are sintered into a coherent mass against the walls of a furnace, and the mass so formed is further heated to smelt the ore. Air from a blower 19 and a mixture of fine ore, flux, and fuel from a hopper 17 are fed through pipes 16, 14, 6, 8 to a rotatable furnace 4, means being provided for traversing the pipes 6, 8 through the furnace. The furnace is preliminarily heated by a torch, and the heating is thereafter maintained by the combustion of the fuel and ore, volatile products being withdrawn through a pipe 26. A deposit of sintered ore is formed which may be removed mechanically and smelted elsewhere, but is preferably smelted in situ by supplying air, or fuel and air, through the pipes 8, the smelting being preferably stopped when there is still a thin unburned layer remaining on the walls. The furnace may be tilted about an axle 37 to allow of continuous or intermittent discharge through an opening 29. During the smelting operation the atmosphere in the furnace may be oxidizing, neutral, or reducing, according to the materials treated and the products desired.
Patent GB-163430-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22G7/10
Filed: 1920-02-11
Abstract: 163,430. Chapman, E. B. Feb. 11, 1920. U-tube superheaters.-Air-heating tubes h are arranged in the uptake of a boiler immediately beyond steam-superheating tubes a, all the tubes being disposed in parallel planes.
Patent GB-584781-A (GB)
Title: Improvements in or relating to power-plant installations
IPC: B64D27/06
Filed: 1945-02-19
Abstract: 584,781. Universal joints ; shaft couplings. BRISTOL AEROPLANE CO., Ltd., FRISE, L. G., and NORTON, J. L. Feb. 19, 1945, No. 4195. [Class 80 (ii)] [Also in Groups XXV, XXVII and XXXIII] In order to minimize the forces to which a vehicle power plant is subjected due to the relative deflections of the various members of the vehicle structure, the plant comprises a pair of engines and a common transmission gear assemblage, the gear assemblage being carried by a structural member of the vehicle and the engines suspended solely from said member and/or the gear assemblage, one on each side thereof. The invention is shown applied to an aircraft in which contra-rotating airscrews 13 are driven by two radial-cylinder air cooled engines 11 through shafts 42 and a common gear box 12, the forward end of each of the transmission shafts being provided with a Hooke's joint 44, and the rear end with a readily detachable flexible coupling 46. The gear box is mounted within a monocoque housing 18 secured to the front vertical face of a master wing rib 17 and each engine is supported from the rib by a pair of tubular tripod frames 23 and tie rods 28. The coupling 46, Fig. 4, embodies rubber bushes 51 in a disc 47 bolted to a flange 49 on the engine shaft 45 and to a coupling member 50 at the rear end of the transmission shaft 42, the coupling member 50 being connected to the shaft 42 by a splined split sleeve 55 which is tightened on the members 42, 50, by straps 58 and bolts 59. The sleeve 55 is correctly positioned in the axial direction, during assembly of the coupling, by spring pressed pins 60 in the member 50 which engage holes at the chamfered end of the sleeve. Specifications 564,061, 584,779 and 584,780, [all in Group XXXIII], are referred to.
Patent GB-270810-A (GB)
Title: Improvements in or relating to drawing and suspending curtains
IPC: A47H15/02
Filed: 1926-02-13
Abstract: 270,810. Bertuccioli, T. B., and Vabest Co., Ltd. Feb. 13, 1926. Curtains, suspending. - In curtain runners comprising a roller running on a strip-like race, and a wire frame 1 on which the roller is pivoted and from which the curtain is suspended, the roller groove 5 or the running track is so shaped that the roller contacts only with annular edges of the track. The, end flanges 10, 11 of the runners are thickened and their outer faces 12, 13 are rounded. The wire 1 is bent inwardly at 14 towards the race 6 clear of the runner, is formed as a hook 15 at the bottom engaging the strip, and at the top forms the axis for the runner. The roller groove may be rounded and the track rail face may be concave or V grooved.
Patent GB-794880-A (GB)
Title: Improvements in or relating to devices for use in practising golf putting
IPC: A63B57/00
Filed: 1957-02-07
Abstract: 794,880. Golf-practising appliances. JOHNSON, W. H. Feb. 7, 1957, No. 4277/57. Class 132(2) A substitute golf hole comprises a thin plate 10 having a hole 11 with a lip 12 bent up round part of the hole. Not more than three sides of the plate may have an upturned flange 13 and the plate has holes 14 for fixing pegs.
Patent GB-903794-A (GB)
Title: Improvements in and relating to a method for the manufacture of organic thermoplastic tubular film and products resulting therefrom
Inventor: EULING TERENCE MARTIN
IPC: B29C48/03
Filed: 1960-02-08
Abstract: <PICT:0903794/IV(a)/1> <PICT:0903794/IV(a)/2> An apparatus for the production of organic thermoplastic tubular film (which may subsequently, if desired, be slit to convert it into flat film) comprises a die 3 having an annular orifice 2 through which organic thermoplastic material is extruded in the form of a tube 1, quenched by means not shown, and then passed in a partially collapsed state between nip rolls 4.  A tubular probe 5 mounted on the die 3 projects through the nip of the rolls 4 and has perforations at 6.  Air issues from the perforations 6 to form an air cushion between the probe 5 and the shaped grooves 7 in the nip rolls 4.  The grooved portions of the nip rolls are formed from a resilient material such as sponge rubber.  The film 8 assumes a lenticular shape on its passage between the nip rolls and the perforated part 6 of the tubular probe 5 is also so shaped.  Air from the air cushion escapes into the space 11 between the die and the nip rolls, the pressure in this space being controlled by an exit pipe 9.  The pressure at 10 is greater than that in the space 11 and is used to inflate the film in the drawing stage, but the pressure at 10 is less than that inside the probe at the perforations 6.  This is brought about by restricting the opening at the end of the probe 12 and also allowing the air in the drawing bubble controllably to escape. When higher air cushion pressures are needed, as in the case of polypropylene film manufacture, a separate air supply may be provided for the perforations.  For example, the interior of the probe may be provided with a second air supply pipe for supply of air under moderate pressure to the space 10, while supplying air to the perforations at a higher pressure through an outer channel in the probe.  The second air supply pipe and the probe are then sealed into each other at the end of the probe so that air from the outer channel does not escape to the space 10.  In either case the air discharged through the perforations 6 reduces contact pressure between the tubular film and the probe 5 so that scratching of the tubular film is reduced.  Specifications 787,479 and 843,113 are referred to.
Patent GB-588479-A (GB)
Title: Improvements in and relating to receivers for frequency modulated electrical oscillations
IPC: H03F3/48
Filed: 1945-02-21
Abstract: 588,479. Frequency modulation. GENERAL ELECTRIC CO., Ltd., and STENNING, L. C. Feb. 21, 1945, No. 4376. [Class 40 (v)] A reflex circuit arrangement is used with a receiver for frequency modulated waves, the dual amplification being effected preferably in one or more of the I.F. stages. V1, V2 are two H.F. stages, preferably the 1. F. amplifier. stages, followed by a limiter V3 and frequency discriminator 12 of the phase-shift type. The discriminator output is fed back through a line 15 to the input side of I.F. stage V2, and after amplification therein is taken off over line 21. to the L.F. amplifier V5 and thence to the output terminals 20. Filters 18, 19 suppress H.F. (or I.F.) oscillations in the feed-back circuit 15 and the L.F. output line 21 respectively.
Patent GB-546765-A (GB)
Title: Improvements in or relating to indicators and indicator boards for tabulating information
Filed: 1941-04-03
Abstract: 546,765. Indicators and indicator boards. SWAN, J. C. April 3, 1941, No. 4485. [Class 118 (i) [Also in Group XVIII] Spiral springs are assembled or wound in spaced parallel lines b on a board, drum, wall &c. a, the tension being such as slightly to separate the convolutions in order that indicator tabs may be inserted on or between them for tabulating information. The springs are cut to length and the end spirals bent over at right angles to form loops through which fastening screws or fins are passed. The distance between the convolutions after stretching is slightly less than the thickness of the tabs. If spring-over tabs as in Fig. 8 are used the degree of stretching is not critical. The springs are fixed first clear of the board so that paper charts may be slipped behind them and attached to the board. In a modification, slotted L-shaped members are fixed to the sides of the board and the springs wound around them in a zig-zag in one continuous length. In another form a length of spring is taken to make two lines across the board and a few spirals at the end bent at right angles ; a loop at the centre is similarly formed. The centre one is passed under the member at one side of the two ends under members at the other side of the board and there secured by a pin passed through the loops. The springs may be wound on a drum either spirally or longitudinally, being bedded into slots in bars suitably spaced and fixed on the drum in a longitudinal direction. The drum may be of polygonal section. The spring may be wound on a board &c. from a central point in a succession of polygons.
Patent GB-128156-A (GB)
Title: Improvements in or relating to Dust Shields for Axle Boxes for Railway and like Vehicles.
Inventor: BOWLES GEORGE BARKER
IPC: B61F15/22
Filed: 1919-02-22
Abstract: 128,156. Bowles, G. B. Feb. 22, 1919. Dust &c., excluding.-A dust-guard for railwayvehicle axle-boxes consisting of a ring c pressed axially by springs against the boss i of the wheel, is mounted in an annular socket b adapted to be fitted to existing axle-boxes. The socket has an annular flange, or lugs fixed by screws to the end wall of the axle-box. Springs h are seated in holes or recesses formed in the end wall of the axlebox. Springs h are seated holes or receses formed in the end wall of the socket b. If the axle-box has a vertical groove f, the outer wall of this groove is cut away as shown to receive the socket.
Patent GB-525005-A (GB)
Title: Improvements in and relating to machinery for cutting dovetails in timber
IPC: B27F1/04
Filed: 1939-02-11
Abstract: 525,005. Dovetailing. BURROWS, F. W., and GREEN, A. Feb. 11, 1039, Nos. 4511 and 28127. [Class 145 (ii)] In a dovetail cutting machine having a number of saws on a spindle and in which the work is moved into and out of contact with the saws, the work is moved towards and away from the saws first in one direction at a slight angle to the saws to cut one side of the dovetail slot or the pin, and then at the same angle to the saws, but on the opposite side to cut the other side of the slot or pin. In the machine shown in plan in Fig. 1, and in the end view, Fig. 3, the slots are cut on the left and the pins on the right. The saws 23 on the left are arranged in pairs and well hollowed to clear the corners of the dovetail. The vertically adjustable bracket 28 carries a horizontally adjustable table 19 supporting a guide in three parts 39, 40, 41, the part 39 being fixed and the others being slidable towards the saws by cams 44, 45 on a shaft 31 and withdrawn by springs 42, 43. The inclined sides of these guides are always maintained in contact with one another. When the shaft 31 is rotated through one revolution by engaging clutch 32, table 40 carrying the work support 53 is first moved and withdrawn to cut one side of each dovetail and then both guides 40, 41 are moved forward and returned to cut the other side. On the other side of the machine the boards are held vertically and moved over saws 24, the board holder 55 being mounted on a central vertical pivot and swung over alternately against stops 61 to cut the two sides of the dovetail pins.
Patent GB-585396-A (GB)
Title: Improved process for the manufacture of polymeric materials
IPC: C08F10/00
Filed: 1944-03-10
Abstract: Polymers and interpolymers of mono-olefinic organic compounds containing the group >C=C< as sole carbon-carbon unsaturation are obtained by contacting one or more such compounds with an amine oxide catalyst at 20-400 DEG  C., preferably 50-250 DEG  C., and at superatmospheric pressure.  Specified compounds are ethylene, propylene, the butylenes, tetrafluoroethylene, vinyl chloride, vinyl acetate, vinyl propionate, vinyl benzoate, vinyl isobutyrate, vinyl thiolacetate, vinyl dimethyl and trimethyl acetates, vinyl laurate, vinyl hexanoate, vinylidene chloride, methyl vinyl ketone, methyl isopropenyl ketone, styrene, acrylic and methacrylic acids and their derivatives, e.g. the esters, nitriles, amides and anhydrides, N-vinyl-phthalimide and N-vinyl-succinimide.  In addition to amine oxides, the hydrates, salts, and hydrates of salts of amine oxides may be used; listed are trimethylamine oxide and its hydrate, triethylamine oxide and its hydrate, dimethylaniline oxide, its hydrate and salts, pyridine N-oxide and quinoline N-oxide.  The polymerization may be carried out by bulk, solution or emulsion methods, but the preferred medium is water, if desired together with an aromatic hydrocarbon or ethanol, ketones, acetals, ethers, acids and halogenated aliphatic hydrocarbons, e.g. carbon tetrachloride and chloroform.  The process is suitable for polymerizing ethylene in the presence of hydrogen.  When two or more monoolefinic compounds are used, the composition of the product can be controlled by varying the pressure, the ratio of liquid to free space in the reaction vessel, the temperature or by combinations of these.  The products are useful as lubricating oils and greases, extruded or moulded shapes, foils, films and electrical and thermal insulating materials.  Specification 581,899 and 583,181 are referred to.