baber/WOPTO huggingface dataset:
Patent GB-676469-A (GB)
Title: Improvements in or relating to toy building blocks
IPC: A63H33/08
Filed: 1950-02-24
Abstract: 676,469. Toy building blocks. DIE CASTING MACHINE TOOLS, Ltd., and MILLS, A. R. Feb. 23, 1951 [Feb. 24, 1950; Feb. 24, 1950], Nos. 4830/50 and 4850/50. Class 132 (iii). A toy building block of hollow construction with an open face is provided on the side 10 opposite the open face with outwardly extending projections 11, and corresponding inwardly extending projections 12 which are engageable with the projections 11 of a similar block when the blocks are superimposed. The projections 12 extend through the block as far as the plane of the open face and a channel 19 is formed in one end face of each block to permit windows, doors and the like to be secured e.g. when the blocks form a wall. Holes 20 may be formed in the face 10 for lightness and economy of material. Halfblocks, Figs. 6, 7 (not shown), may be used to provide a straight vertical face for the end of a wall or for the sides of windows or doors. The blocks may be of plastic or die-cast of metal and the projections 11, 12 may be of square or other section.
Patent GB-141849-A (GB)
Title: Improvements in and connected with electric lockout switches
IPC: H01H71/44
Filed: 1919-02-26
Abstract: 141,849. West & Co., A., Breeze, V., and Bossom, R. P. Feb. 26, 1919. Electro-magnetic switches. - In a lock-out switch, the lock-out coil 4 is made of iron or other material the resistance of which has a high temperature coefficient, and is in shunt with a resistance 5 of copper or other material with a low temperature coefficient.
Patent GB-642266-A (GB)
Title: Improvements in or relating to fire boxes or flues for hot water or steam boilers
IPC: F22B13/02
Filed: 1948-02-19
Abstract: 642,266. Steam. boiler fireboxes. FARRAR BOILER WORKS, Ltd., and PALMER, J. E. Feb. 19, 1948, No. 4848. [Class 123(ii)] [Also in Group XXII] A firebox 2, Fig. 1, having cross watertubes 12, is formed from. a hollow member of cylindrical or truncated conical shape which is provided with openings 3 at opposite sides and intermediate the ends thereof to receive tube plates 6 which are substantially flat and parallel to each other. The vertical edges of the plates 6, which are preferably bent to conform to the curvature of the firebox, are buttwelded to the firebox, and the spaces between -the plates 6 and the upper and lower curved edges 5 vided with openings 3 filled by welded-in substantially flat segmental plates 7, 8, The plates 7, 8 may be integral with the corresponding plate 6 which may itself be constituted by the part cut out of the firebox to form the opening and subsequently flattened. In a modification, Fig. 13, each side of the firebox is cut along two substantially horizontal lines 15, 16 and a central vertical line 17, thus forming a pair of door-like flaps 18 which are bent about axes 19 into a common plane and then welded together and to filling plates 7, 8. The plates 6, Fig. 1, may each be replaced by a pair of plates shaped like the flaps 18, Fig. 13.
Patent GB-820979-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/04
Filed: 1957-02-13
Abstract: 820,979. Optical objectives. BLASCHKE, W. S., and TAYLOR, TAYLOR & HOBSON Ltd. Jan. 30, 1958 [Feb. 13, 1957], No. 4924/57. Class 97(1) An optical projection objective comprises a front member made up of a collective component in front of a meniscus component which is concave to the front and has a thickness between 0.3F and 0.8F (F = focal length of objective), and a rear member made up of a collective component with its front surface convex to the front located in front of a negative component, the algebraic sum of the curvatures of the front surfaces of the two components of the rear member does not differ from the algebraic sum of the curvatures of the rear surface thereof by more than 0.7 times the power of the objective, and the radius of the front surface of the collective component or the rear member multiplied by one plus the refractive index of the lens material bounded by that surface differs by less than 0.3F from the difference between the back focal length of the front member and the axial separation of the two members. Preferably the focal length of the meniscus in the front member is numerically more than 5F and the radii of the front and rear surfaces of this meniscus each lie between 0.33F and F. The axial separation of the two members may be between 0.2F and 0.7F. Optical data are given for the example shown.
Patent GB-1010464-A (GB)
Title: Transmission devices having push-pull chains
IPC: F16G13/18
Filed: 1962-05-09
Abstract: 1,010,464. Chains. CENTRE D'ETUDESET D'APPLICATIONS DES TECHNIQUES DE PRODUCTION. May 9, 1962 [May 18, 1961; Jan. 12, 1962], No. 4925/65. Divided out of 1,010,463. Heading B8A. [Also in Division F2] A transmission device for pushing or pulling a load over a surface 56, Fig. 1, comprises a chain 1 which is capable of flexing in only one direction and has pairs of drive rollers 33, Fig. 3, each pair of rollers 33 being coaxial with and positioned one on each side of a guide roller 32, a driving sprocket 3 having two rows of axially separated teeth 36 engageable with the drive rollers 33 and a chain guide member 43 having a surface 43a concentric with and facing the sprocket wheel 3 and co-operating with the guide rollers 32. The chain 1 comprises right-hand links, Fig. 4, consisting of two plates 10 and 11 joined together by rivets 28, or by welding, and lefthand links, Fig. 7 (not shown), wherein the plate 10 is on the other side of the plate 11, the links being disposed alternately and symmetrically relative to their longitudinal medium plane and being joined to each other by pivots 31. The plates 10 have each a projection 15 providing front faces 18, 24 and rear faces 19, 25, the front faces of each link abutting the rear faces of the next link to form a rigid bar when the chain moves over the surface 56; the faces 18 and 19 have initially a small clearance therebetween. The sprocket 3 is in two parts connected by, for example, screws 37 and is mounted on a driven shaft 41 rotatable in both directions by hand or an electric motor with reduction gear. An internal guide member 44 is also provided, the guide members 43 and 44 being clamped by spacers 46 and studs 49 and 52 between two plates 47 and 48 of a casing 2.
Patent GB-549816-A (GB)
Title: A test bar device for fixing to the head stock of a lathe or the like
IPC: B23Q17/22
Filed: 1942-04-15
Abstract: 549,816. Alignment gauges. TURNER, A. C. April 15, 1942. No. 4931. [Class 106 (ii)] [Also in Group XXII] A test-bar device for fixing in alignment with a spindle such as a lathe spindle for resetting purposes comprises a round bar 1 with a hemispherical head 2 fitting in a socket in a loose mounting member 4 secured against the spindle end 5 by a clamping rod 6 screwed into the head 2 and passing through a clearance hole 7 in the mounting member and through the centre of the hollow spindle. Before fully tightening the securing nut 20 the mounting 4 is adjusted by tapping so that the centre of movement 8 of the head 2 lies on the lathe axis and the bar 1 is also adjusted in its socket so that its axis is in alignment with the spindle axis. The clamping nut is then fully tightened. A washer 9 may be interposed between the part 4 and the spindle nose. The rod 6 may be built up to the required length by connecting short lengths together by screwed sleeves. In a modification, Fig. 5, the test bar 10 has a ball-head 11 secured in a socket in the mounting member by a screwed cap 13 and the rod 6 is screwed into the mounting member 12. When the rest bar has been thus aligned it serves as a datum for adjustment of the headstock or other parts.
Patent GB-578194-A (GB)
Title: Improvements in or relating to liquid containers
IPC: B64D37/06
Filed: 1943-03-30
Abstract: 578,194. Liquid containers. SHAKESBY, L., WHITE, S. D., and POWER, H. H. March 30, 1943, No. 5117. [Class 66] [Also in Groups VIII, XXVIII and XXIX] A protecting covering for a liquid container &c. comprises a layer of leather at least 1.25 mms. thick, and having a tensile strength exceeding 750 lbs. per square inch, a rip strength exceeding 10 lbs., elongation at 75 lbs. between 10 and 30 per cent., a fat content less than 6 per cent., and a fibrous structure. Elongation at break is preferably between 25 and 45 per cent., and the leather preferably has a bursting strength over 350 lbs. per square inch. Examples of leathers are given. A self-sealing covering may comprise a layer of swellable sponge rubber adhesively secured between two layers of the leather, the inner layer being similarly secured to the container ; an outer layer of fabric is also provided. The leather may be tanned by passing the skins through the Beam-house processes and then treating with a formaldehyde-containing liquor of which the pH is adjusted to between 8.3 and 8.8 by addition of alkali ; neutral salts and a soluble aliphatic alcohol may be added to the liquor. When not less than 1.5 per cent. of formaldehyde is combined with the skins, they are removed from the liquor and may be treated, if desired after re-tanning, in a solution of a fat liquoring agent and/or a surface active agent containing a fatty radical.
Patent GB-490148-A (GB)
Title: Combined container and display device
IPC: B65D5/52
Filed: 1937-02-20
Abstract: 490,148. Display stands ; boxes. MACKINTOSH & SONS, Ltd., J., CARR, J., and OAKES, H. Feb. 20, 1937, No. 5122. [Class 3 (ii)] [Also in Group XVII] Cardboard trays A, B, C containing chocolates &c. are connected together by hinges E so that they may be supported in tiers for display purposes by a collapsable step-like member F secured to the rear of the tray C, and for packing and transport, may be turned about these hinges so as to lie in one plane with the member F folded beneath. In the collapsed position, a flap G bearing advertising matter may be folded down to serve as a lid and the trays inserted in a carton. The trays may be of rectangular cross-section in which case the hinges comprise links.
Patent GB-124560-A (GB)
Title: A Mechanical Contrivance for Opening and Closing Folding and Sliding Doors, based on the Principle of an Endless Chain.
Inventor: BROWN GEORGE JAMES
IPC: E06B3/48
Filed: 1918-03-25
Abstract: 124,560. Brown, G. J., and Lautour, P. J. D. de. March 25, 1918. Operating doors by chain arrangements. - Relutes to the operation of double, doors composed of panels united together side by side by joints of the rule type at or near the top and bottom edges. Figs. 1 and 2 show the invention for operating doors A, B of equal width. To the bottom a<1> of the right-hand upright of the lefthand door is attached one end of chain C<1>, which is led through rings or staples projecting from the buttom of the door, round the pulleys D<1> and E<1> to the bottom b<1> of the left-hand, upright of the right-hand door, where, it is secured. From this joint the chain proceeds round the pulley G', driving-pulley K, and back round a second guidepulley G<1> to the point a<1>. A similar arrangement of chain and pulleys is provided on the upper side of the doors. Fig. 3 shows the invention for operating doors of unequal width, the door M being narrower than the door N. For the bottom of the doors there are two operating and controlling chains O<1>, S<1> shown in short and long dots respectively, the chain O<1> being attached to the bottom m<1> of the left-hand style of the right-hand door and the ends of the chain S<1> being secured to the bottom n<1> of the right-hand style of the left-hand door. The chains are passed round guide-pulleys as shown, and the chain S<1> is also passed round an operating-pulley V. The chain O<1> is also secured to an extension Q<1>. Similar arrangements of chains are applied to the tops of the doors. The effect of operating the chain S<1> is firstly to open the middle part n<1>. Q<1> of the double door and afterwards to open the end portions if required.
Patent GB-614391-A (GB)
Title: Improvements in or relating to dyes and manufacture thereof
IPC: C09B11/12
Filed: 1945-03-02
Abstract: o-Phenyl-N-dimethylaniline is obtained by the dimethylation of 2-aminodiphenyl obtained by reducing 2-nitro-diphenyl obtained by the mononitration of diphenyl.ALSO:o-Phenyl-N-dimethylaniline on oxidation and treatment with aqueous strong alkali yields a triarylmethane dyestuff base which yields violet-blue water-soluble dyestuffs on acidification with e.g. aqueous hydrochloric, sulphuric, phosphoric and acetic acids and pigments on treatment with e.g. phosphotungstic, phosphomolybdic, phosphomolybdotungstic and tannic acids.  The oxidizing agent is a mixture of sodium chloride, phenol, copper sulphate and water and the product is isolated from hot lime water.  The dyestuff base dissolves in oleic acid to give a violet-blue solution.  In an example, an aqueous hydrochloric acid solution of the dyestuff base is added to an aqueous solution containing sodium tungstate, sodium molybdate, sodium monohydrogen phosphate and concentrated sulphuric acid whose pH had been adjusted to 3.0 and a blue pigment obtained on heating, filtering and drying.
Patent GB-969507-A (GB)
Title: Signal normalization circuits
IPC: G10L21/00
Filed: 1961-02-13
Abstract: 969, 507. Measurement circuits including cathode-ray oscilloscopes. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 13, 1961 [Feb. 12, 1960], No. 5266/61. Heading G1U. [Also in Division H4] Apparatus for converting the average amplitude of a signal to a selected average amplitude comprises a first means for averaging the signal over a predetermined interval, second means for providing a delayed version of the signal and a variable gain amplifier which amplifies the delayed signal by an amount determined by the averaging means. The invention is described in relation to a device for displaying characteristics of a spoken word, the display also including variations in frequency and being caused to assume a standard length irrespective of the duration of the word. Such a method of display facilitates recognition by comparison with standard patterns for different words. As shown the signal from the audio source 10 is applied to a'n envelope demodulator 18 followed by an intergrator circuit 19 whose output represents the mean amplifude of the signal. The output of circuit 19 controls the gain of amplifier 21 to which the sound signal is applied after passing through the delay device 11. A generator 25 is provided which generates a constant output signal for the duration of the sound to be observed and this is integrated and used to vary correspondingly the gain of a second amplifier 23 fed from the output of amplfier 21. A frequency demodulator followed by an integrator indicates the average frequency of the sound signal and this is used to control variable band pass filters 35, 39 which are fed by the amplitude normalizer output from amplifier 23. Filter 35 feeds an envelope demodulator whose output thus indicates the variations in amplitude of the normalized signal. Filter 39 feeds a frequency measuring circuit which comprises a "zero crossing" pulse generator 40 followed by an integrator 41. The circuit 40 may be arranged to produce pulses not only at each zero crossing of the input wave but also at its maxima and minima. The amplitude and frequency indications are fed to a switch 44 which feeds these signals on a time division basis to a display device such as a cathode ray oscillograph. The time of sweep of the latter is controlled by the duration indicator 30 so as to spread the indications over a standard length on the tube. Alternatively, the amplitude and frequency indications may be applied to an analogue-digital converter which is then read out at a rate determined by the duration signal. The delay device may be a magnetic tape and amplitude and frequency variations may be displayed for signal components in a plurality of frequency ranges Fig. 2 (not shown). Specification 969, 508 is referred to.
Patent GB-639717-A (GB)
Title: Improvements in or relating to apparatus for producing hard-twisted textile yarns
Inventor: SENIOR FRED HARRY
IPC: D01H5/36
Filed: 1947-02-24
Abstract: 639,717. Twisting and curling yarns. ENGLAND & CO. (SHELLEY); Ltd Feb. 24, 1947, No. 5271. [Classes 120 (ii) and 120 (iii)] In apparatus for producing hard twisted yarns, a bobbin a containing ends of yarn A to be twisted together is mounted loosely on a spindle b extending transversely across a holder or container c rotating about a vertical axis, the ends of yarn A being led over a guide roller g and between nip rollers h, h<SP>1</SP>, i, i<SP>1</SP>, from which the now twisted-together ends pass under a tension bar j and a hook or equivalent member k whence they pass down a central hollow neck m<SP>1</SP> of a flyer m carried by a driven vertical spindle w out through a radial opening m<SP>2</SP>, through a guide eye m<SP>3</SP> and a twizzle or eye m<SP>4</SP> to be wound on a bobbin p mounted loosely on the flyer spindle w and resting upon a rising and falling lifter rail r. The ends of yarn passing from bobbin a may be divided about a pin s. After being twisted together as above the yarns can be " set " by boiling or other treatment and subsequently separated to present a permanently curled or crimped appearance.
Patent GB-266741-A (GB)
Title: Improved transparent windscreen for vehicles
IPC: B60S1/02
Filed: 1927-02-25
Abstract: 266,741. Muntwyler, E. Feb. 25, 1926, [Convention date]. Windscreens. - In order to maintain the transparency of a vehicle windscreen in wet or frosty weather, the portion 3 of the screen in the driver's line of vision is curved or convexed outwardly, preferably being made of hemi-spherical or semicylindrical shape and the air enclosed in the curved portion is adapted to be heated, e.g. by an electric heater 6. In the construction shown in Fig. 3, the portion 3 is of hemi-spherical shape and is attached to the main screen 2 by an annular flange 4, the part of the screen 2 with. in the flange 4 being cut away if desired. In a modification, Fig. 5, the portion 3 is in the form of a cylinder rotatably mounted at the ends of its longitudinal axis 9 and adapted to be moved through an angle of 180‹ by a handle 12, the outer surface during this movement contacting with a brush 14 mounted on the main screen 2 so as to remove moisture &c. from the cylinder 3.
Patent GB-219351-A (GB)
Title: An improved process of refining commercial benzol
IPC: C07C7/148
Filed: 1923-02-23
Abstract: In the purification of commercial benzol by an oxidizing gas e.g. air or oxygen, a pressure of several atmospheres is maintained, and preferably alkali is present.  In an example a benzol of 0.8798 S.G. is treated for 4 hours at 80 DEG  C. with half its volume of normal caustic soda and with oxygen under a pressure of 200 lb.  Further treatment at 185 DEG  C. and higher pressure reduces the sulphur content and bromine value much further.  Preferably the air or oxygen is blown through the benzol and circuited for reuse.
Patent GB-1181960-A (GB)
Title: Internal Gas Adsorption Means for Nuclear Fuel Element
IPC: G21C3/17
Filed: 1969-01-31
Abstract: 1,181,960. Fuel elements. WESTINGHOUSE ELECTRIC CORP. 31 Jan., 1969 [2 Feb., 1968], No. 5328/69. Heading G6C. A fuel element for a pressurized-water nuclear reactor comprises a hermetically sealed metallic container 14 having walls forming a fuel-containing chamber 22 and a plenum chamber 24, the former containing bodies 12 of fissile material and the latter one or more bodies 28 of monatomic gas adsorbent material so as to control the fission product gas pressure within the container. Suitable gas adsorbent materials are activated charcoal, activated alumina, activated uranium dioxide, and molecular sieves. The fuel bodies 12 may be pellets of uranium dioxide enriched with approx. 3% by wt. U-235, or pellets of the oxides or carbides of Th or Pu. The cladding 14 may consist of a zirconium-base alloy or an austenitic stainless steel. The bodies 28 of gas adsorber may be in powder form or inclined to form a powder during their use within a reactor, and a porous disc 30 is therefore provided between the chambers 22, 24 to prevent the powdered adsorber from moving into and filling the clearance space 26 which exists between the fuel bodies 12 and the cladding 14 before the fuel element is at the elevated temperature of operation.
Patent GB-140192-A (GB)
Title: Improvements in machines for pressing the seams of caps and garments
IPC: D06F61/02
Filed: 1919-03-04
Abstract: 140,192. Catterall, P. J. March 4, 1919. Ironing machines with rollers.-In a machine for pressing cap seams &c., in which the shaft c of the upper of two rotarv disks e. f is pivotally mounted at one end and vertically slidable at the other to allow separation for insertion of the work, the pivotal bearing h is mounted on two set-screws and the bearing u is slidable in the standard b and normally depressed by an adjustable spring v. The downward movement of the bearing u is limited by a screwed stop which can be adjusted to vary the working gap between the disks. In order to insert the work, the upper disk is raised by a lever 2 which extends under the bearing u and is connected with a pedal 4. A guard 5 carried by the bearing u prevents contact of the operator's hands with the upper heated disk e.
Patent GB-730544-A (GB)
Title: Improvements in and relating to machines for spinning natural and artificial silk
IPC: D01H1/20
Filed: 1952-02-29
Abstract: 730,544. Toothed gearing. SCRAGG & SONS, Ltd., E., and DAVENPORT, A. April 24, 1953 [Feb. 29, 1952], No. 5336/52. Class 80 (1). [Also in Group IX] Mechanism for driving the roller shaft of " uptwisters " comprises an input shaft adapted to be driven at constant speed, an output shafts in axial alignment therewith, the drive being transmitted from the input shaft to the output shaft by gearing including two planet gear wheels which mesh with one another and with sun wheels mounted on the input and output shafts respectively, and means actuated by the input shaft for oscillating or rocking the planet wheels around the sun wheels so that a varying drive is imparted to the output shaft. As shown a main machine shaft 10 drives through suitable change-speed gearing (not shown), input shaft 11 having a pinion 12 which meshes with a spur wheel 13 on shaft 14. This shaft carries, eccentrically, an arm 15 which is pivotally connected by pin 16 to an arm 17 projecting from a sleeve 18 rotatably mounted on the input shaft 11 by bushes 19, 19. The sleeve 18 is connected to a gear case 20 which is freely journalled on the output shaft 21 through bush 22. The gear casing 20 carries, on stub axles 25 and 27, planet wheels 24 and 26 which mesh with each other and with sun wheels 23 and 28 respectively on the ends of the input and output shafts. Thus in operation rotation of the input shaft will, through gears 23, 24, 26 and 28, rotate the output shaft in opposite direction and by reason of the oscillatory or rocking motion imparted to the gear case 20 through the sleeve 18 the planet wheels will be rocked around the sun wheels and the rotation of the output shaft 21 will be variable. Specification 647,891, [Group IX], is referred to.
Patent GB-755252-A (GB)
Title: Apparatus for classifying particles by size
Inventor: MORTIMER NOEL REGINALD FORTESC
IPC: B07B4/08
Filed: 1954-02-23
Abstract: 755,252. Separating solid materials. YOKES, Ltd. Feb. 23, 1955 [Feb. 23, 1954], No. 5346/54. Class 117. Particles of different density are supported on a perforated part 2 of a conveyer 1 passing between air trunkings 3, 4, and an upward air flow is produced by a fan 5 which discharges to a filter 6 having a discharge outlet 7. The material inlet sides of the trunkings are sloped at 8 and 9, and a vane 10 is provided, to increase the air flow at the inlet side thereby causing all the particles to move in various trajectories, Fig. 2 towards the outlet side. The lighter particles are carried away by the air stream whilst the remainder are removed by the conveyer. Air from the filter is recirculated through the trunkings.