baber/WOPTO huggingface dataset:
Patent GB-315197-A (GB)
Title: Improvements in a new ceramic material and method of making same
IPC: C04B33/16
Filed: 1929-07-08
Abstract: 315,197. A.C. Spark Plug Co., (Assignees of McDougal, T. G.). July 7, 1928, [Convention date]. Clay, porcelain, and like plastic compositions. -Ceramic material for the manufacture of sparking plugs, electric insulators and the like comprises approximately 50 per cent of plastic clays, 5 per cent of suitable flux such as magnesia and the remainder of refractory material rich in alumina, such as mullite, prepared as described in Specification 315,196 in the form of very minute unstable crystals. It is stated that when the moulded product is fired in the usual manner, a marked crystalline growth takes place which increases the mechanical strength, the electrical insulating quality, and the resistance to heat.
Patent GB-1504702-A (GB)
Title: Recuperators
IPC: F28F21/04
Filed: 1975-05-12
Abstract: 1504702 Thermal recuperators BRITISH STEEL CORP 12 May 1975 [13 May 1974] 20997/74 Heading F4S In a thermal recuperator (e.g. for preheating combustion air by furnace waste gases) wherein a plurality of horizontal tubes 10 extend across a duct 50 between refractory tube plates 11, 12 each in abutment with a section (indicated at 13, 14, 15 and 16) of the duct wall, each abutment joint (shown as a tongue-and-groove joint) is overlapped by a refractory member to prevent leakage through the joint of the fluid flowing in the duct 50. The overlapping refractory members are shown as comprising the walls 19-22 of headers 51, 52 conveying the combustion air to and from the tubes 10 in heat exchange with the furnace waste gases passing through the duct 50. The tubes 10 are of a ceramic material such as silicon carbide.
Patent GB-435638-A (GB)
Title: Improvements relating to lubricated bearings
IPC: F16N13/20
Filed: 1934-07-18
Abstract: 435,638. Cylindrical journal bearings. BATEMAN, W. H., 33, Armorial Road, and WICKMAN, Ltd., A. C., Queen Victoria Road, both in Coventry. July 18, 1934, No. 20999. [Classes 12 (i) and 12 (ii)] A bearing for a rotary or reciprocating shaft comprises a sleeve b carried in a housing a and having helical grooves on its outer and inner faces. The grooves preferably have taper sides and the thickness of the metal is such that the sleeve can be contracted endwise by a screwed ring c to adjust the internal diameter. As shown, a groove in a ring f connects the two helical grooves. Oil enters an inlet nipple g, traverses first the outer groove, then the inner groove and leaves by an outlet h. The oil in the outer groove thus cools the oil in the inner groove. The grooves may be unconnected, and a cooling or heating liquid may be supplied to the outer groove, the inner groove being supplied with oil. Alternatively cooling or heating liquid may flow through both grooves.
Patent GB-808390-A (GB)
Title: Improvements in or relating to hybrid transformer couplings
IPC: H03F15/00
Filed: 1956-07-06
Abstract: 808,390. Two-way transmission. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 6, 1956 [July 11, 1955], No. 21011/56. Class 40 (4). The one-way output leads 2 of a hybrid coil are connected to a germanium plate M fitted in a gap in the magnetic core F. There are no secondary windings and the Hall effect is used to link the core with the leads and to amplify. Alternatively a battery is included in the output circuit and the resistance of the plate G, Fig. 3, is controlled by the flux in the core. When the Hall effect is used, a battery B1, Fig. 2, is connected to one pair of opposite end faces of the plate M and the leads 2 are connected to the other pair. The two-wire circuit 3 and the input 1 from the 4-wire circuit are connected in the usual way to balanced coils a, b, c, d. A silicon plate M may be used for the Hall effect. When the resistance effect is used, the plate G, Fig. 3, of germanium, bismuth or indium-antimony is connected in series with a battery B2 and a transformer T. As the resistance effect is independent of the polarity of the field a constant magnetic bias is necessary to avoid frequency distortion. The bias may be provided by an auxiliary winding or by a permanent magnetic element fitted with plate G in the gap in the core. The winding f in the secondary circuit of T provides either positive or negative feedback. Repeaters.--Fig. 4 shows a two-way repeater using a separate coil, like that shown in Fig. 2, for amplification in each direction. Fig. 5 shows a single coil used for amplification in both directions.
Patent GB-936131-A (GB)
Title: Improvements in or relating to internal supports or linings of tunnels and shafts
Inventor: SWALLOW FREDERICK COLIN
IPC: E21D5/04
Filed: 1959-06-19
Abstract: 936,131. Lattice work. COLIN SWALLOW (MINING) Ltd. June 20, 1960 [June 19, 1959], No. 21098/59. Class 45. [Also in Group XXI] Lattice work for a tunnel or shaft lining consisting of inter-connected links comprises a steel sphere a having stub shafts c and tubular steel arms b welded or brazed thereto at an appropriate angle of inclination, said members b, c being provided with matching holes such as d to receive locking pins, see also Figs. 2 and 3 (not shown). The unit a, b may be made of concrete and morticed to receive the corresponding tenon of a like unit adapted to be connected thereto with, if desired, a cushion of wood wool fibre disposed therebetween.
Patent GB-263704-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23M3/00
Filed: 1926-08-28
Abstract: 263,704. Dann, C. B., and Conduit, G. W. Aug. 28, 1926. Firebridges. - A hollow firebridge adapted to supply a mixture of steam and air to the combustion space beyond the grate comprises two or more base members 1 supported on trestles 2 and carrying removably by tongue and groove joints 11 side members 5 and intermediate members 7 surmounted by cover-pieces 8 arranged side by side. A perforated steam pipe 14 is supported on transverse web portions 6 of the side members 5 and is connected by a swivelling joint 14<1> to a pipe 15 for the supply of dry steam which passes through openings 16 in the cover-pieces 8. The members 7 may be provided with tapered strengthening projections 12<2> and connected with the side members 5 by tapered lugs 12 and locking members 13. Apertures 17 and a central cut-away portion 9 are arranged in the coverpieces 8 shown, but in a modification the coverpieces are flat and arranged at an inclination to the members 5, 7. Below the grate 22 the base member 1 is provided with an aperture 18 controlled by a flap valve 19 adjusted by a screw 21. The steam-supply pipe 15 may be arranged to constitute a superheater and may be provided with a relief cock for the liberation of condensed steam. For protecting the bridge from excessive heat it may be coated with plastic refractory material 24.
Patent GB-366421-A (GB)
Title: Improvements in or relating to the manufacture of solid milk and cream preparations
IPC: A23C9/18
Filed: 1931-07-25
Abstract: A solid stable milk or cream preparation is obtained by evaporating sweetened milk or cream in large capacity apparatus at about 50-65 DEG  C., preferably not over 63 DEG  C., until the major part of the water has been removed, then evaporating further under vacuum in small capacity apparatus with stirring at not over 50 DEG  C., preferably at 45 DEG  C. or below, until the water content is 7-15 per cent and finally moulding into blocks or other shapes.  The process may be carried out completely in a closed apparatus and a liquid heating medium, e.g. water, may be used.  Reference is made to prior processes for evaporating milk and cream.ALSO:A solid stable milk or cream preparation is obtained by evaporating sweetened milk or cream under vacuum without stirring in large capacity apparatus at about 50-65 DEG  C., preferably not over 63 DEG  C. until the major part of the water has been removed, then evaporating further under vacuum in small capacity apparatus with stirring at not over 50 DEG C., preferably at 45 DEG  C. or below, until the water content is 7-15 per cent and finally moulding into blocks or other shapes.  The milk is preferably first pasteurized at about 63 DEG  C. and then while still warm mixed with the sugar which is preferably first sterilized and may be in solid or solution form.  The sugar solution may be heated, preferably not much above 65 DEG  C., and may be used to heat the milk when starting with cold milk.  The process may be carried out completely in a closed apparatus and a liquid heating medium, e.g. water, may be used.  A protecting layer, e.g. of cocoa butter containing vanilla, may be applied to the blocks.  The milk used may be fresh or wholly or partly skimmed, or enriched with added cream or fat. Reference is made to prior processes for obtaining evaporated milk or cream.
Patent GB-1420754-A (GB)
Title: Flowmeter calibration or proving apparatus
IPC: G01F25/00
Filed: 1972-05-08
Abstract: 1420754 Measuring fluid-flow INDUSTRY SECRETARY OF STATE FOR 8 May 1973 [8 May 1972] 21349/72 Heading G1R In a flowmeter calibrating apparatus including an elongate tube 1 containing a displacement member 3 whose displacement between fixed locations along the length of the tube into the fluidflow is timed, the member 3 has at least two longitudinally spaced sealing members 4, 5 with a cavity 6 formed between them such that any fluid leaking past the sealing members is trapped in the cavity whence it can be removed at a valved tapping 16b and measured and the flow-rate measurement appropriately connected. The same, or a further, tapping (16a), 16b may be used to evacuate air from the cavity 6, the tube 1 preferably being inclined at 2 degrees to the horizontal to facilitate removal of air and the fluid from the cavity. Each end of the tube 1 may be, as in Fig. 4 (not shown) equipped with temperature and pressure transmitters, and also, Fig. 5 (not shown) with hydraulic accumulators to absorb the kinetic energy of the member 3 at the end of its travel should an automatically-actuated control valve system fail to stop it.  Optical sensors (15a-15f) responsive to the passage of the member 3 may be spaced along the tube 1, the member 3 having an annular mirror 25 with a surface 30 to reflect a light beam 34, e.g. from a He/Ne laser, directed through a window 32 in the tube, part of the reflected beam being deviated by a beam-splitting prism 35 on to a lightsensitive switch 39.  In an alternative embodiment, Figs. 6 and 7, (not shown), in addition to an optical sensing arrangement, an independent magnetic sensing arrangement is provided, the member 3 having an annular polepiece (64) and magnets (67), (68) whose passage is sensed by magnetically-sensitive diodes (70) fixed in the tube wall. Preferably the diodes (70) are connected in matched pairs in thermal contact and in magnetic opposition, the voltage at a point between the pair being compared with a reference voltage in a trigger circuit as in Fig. 8 (not shown). Alternatively the apparatus may have mechanical or ultrasonic sensing arrangements.
Patent GB-517293-A (GB)
Title: Improvements in or relating to rotary blowers
IPC: F04D29/28
Filed: 1938-07-19
Abstract: 517,293. Centrifugal fans. DIBOVSKY, V. V. July 19, 1938. No. 21363. [Class 110 (i)] Six blades supported between a ring 2 and a disc 1 are substantially equal in radial depth and axial length and the volume swept by the vanes is substantially equal to the volume radially within the swept volume. The'boss 7 may be covered by a shield 5a described by a parabolic curve. The vanes, Fig. 3, are curved to a parabola, the inlet edges make an angle with the radial which is not greater than 65 degrees and the outlet edge angles lie between 20 and 35 degrees. The concave surfaces 3 and the inner edges 3a of the blades lead in rotation. The casing side walls are spaced apart from the rotor and the wall 10 is cylindrical and encloses a volume outside the periphery of the vanes substantially equal to half the volume swept by the vanes. The outlet 14 is tangential and its area is substantially equal to the cross-sectional area of the volume swept by the vanes.
Patent GB-462117-A (GB)
Title: Improvements relating to work supporting tables for metal working machines and the like
IPC: B21D28/00
Filed: 1935-07-27
Abstract: 462,117. Forging presses. SHEARMAN, C. H. HOWLAND-. July 27, 1935, No. 21429. Convention date, July 27, 1934. [Class 83 (iv)] A work-table which may be used in forging, shearing, punching, or stamping machines is reciprocated at right-angles to the worksupporting face and in timed relation to the operative functions of the machine. A table 18 is guided vertically and supported by a part 15 of the base 11, having shoes 16 for the passage of a wedge 17, the inclined surface 22 of which bears against shoes 21 on the table. An ejector rod 30 with a detachable part 31 carrying a shoe 32 is slidable in a stationary sleeve 33 and reciprocated by a pedal lever for renewal of the die or rest plate. To the wedge 17 is secured a screw 37 carrying an internally threaded member 38 having a bevel gear 53 capable of being rotated by a hand wheel through a second bevel gear. The member 38 is moved by a vertical wedge 40 attached to toggle linkage 54, 56. The linkage is connected to an arm 59, connected by a bell-crank 61, 64 and link 66, Fig. 8, to a plunger 68 in a cylinder 69. The plunger is acted on by springs 81, 83, 85 which may receive a preliminary compression by hand wheel and gearing. Acting on the plunger 68 to compress the springs is an eccentric rod 122 driven from a power shaft 126 and transmitting motion through slides 121, 116 links 114, 101, 99, 97, 93, 92, 80 and rod 79. A screwed rod 106 provides adjustment for the linkage. A spring pressed catch 128 is capable of engaging a notch 127 in the slide 121 or of being removed therefrom to trip the spring-loaded plunger 68 and toggle and wedge system thereby producing a rapid but small and powerful movement of the table. The movement of the plunger 68 compresses the springs 81, 83, 85 to store up energy. As the link 101 swings counterclockwise its upper extension moves to the left sliding a block 184 toward a block 157. Near the top of the movement of the plunger the blocks engage causing a lever 142 to swing, the latch 128 to be withdrawn and the springs immediately to expand. The operating mechanism may involve the use of the clutch described in Specification 460,664, [Group XXIV].
Patent GB-659600-A (GB)
Title: Improvements in or relating to gear pumps
Inventor: JARVIS PERCIVAL JOHN
IPC: F04C15/00
Filed: 1949-08-18
Abstract: 659,600. Gear pumps. PLESSEY CO., Ltd. Aug. 18, 1949, No. 21513. [Class 110(ii)] In a gear pump with pressure fluid admitted to a chamber 20 at one end, to press floating bushes 17 against the sides of the gears 7, 8, one portion 26 of the chamber 20 near the inlet 4 is excluded from the delivery pressure and open to the suc. tion side. The object is to bring the centres of pressure, inside and outside the bushes 17, approximately in line to prevent uneven rubbing of the bushes. A flexible ring 24 seals off the portion 26. Alternatively the ring may surround and seal off the pressure chamber 20 and may be metal reinforced. Ducts 21, 22 are open to the delivery and suction sides, respectively, of the pump. Spaces 36 ... 39 are relieved of pressure and open to the suction side by way of ducts 40, 41. Sealing rings 35 are provided to prevent leakage from the chamber 20. Specification 572,967 is referred to.
Patent GB-614669-A (GB)
Title: Improvements in or relating to take-up devices for yarns and threads in knitting machines
IPC: D04B15/38
Filed: 1946-07-19
Abstract: 614,669. Knitting-machines. STIBBE & CO., Ltd., G., STIBBE, E. V., and BROWN, A. M. July 19, 1946, No. 21625. [Class 74(ii)] A yarn tensioning device having a spring or spring biassed arm provided at one end with a yarn guiding eyelet is provided with braking means to prevent the arm overrunning and slackening of the yarn, in the event of an abrupt take-up of the yarn. The arm 4, is secured to an arm 8 pivoted on a spindle 9 fixed on a bracket 1 of the machine and a pawl 12, mounted on the arm 8, is adapted to engage a ratchet wheel 13 rotatably mounted on the spindle 9. Rotation of the ratchet wheel 13 is resisted by a spring 15 pressing against the side face of the wheel. The yarn passes from between discs 17, and through the eye 5 of the lever 4, any sudden pull on the yarn swinging the arm 4, and causing the pawl 12 to rotate the ratchet wheel 13 against the braking effect of the spring 15, so that overrunning of the arm 4 is prevented. When the tension in the yarn is relieved, the arm 4, is raised under the action of the spring 10, and the pawl 12 slides over the ratchet wheel 13. Alternatively, the wheel 13 may be combined with a brake shoe, or a band, or with braking members providing axially opposed braking surfaces, or the braking arrangement may include co-operating separate members controlled by a member connected with the tensioning member.
Patent GB-188770-A (GB)
Title: Turbine
IPC: F01D1/02
Filed: 1921-08-16
Abstract: 188,770. Summers, J. G. Aug. 16, 1921. Circular-flow type; reversing; leakage-preventing devices.- In a turbine of the type having a rotor 24 with a sinuous channel 25 in its periphery to which motive fluid is supplied from nozzles 15, the channel 25 is bridged by cut off plates 26 fitted on the rotor and serving to close the nozzles intermittently. The nozzles extend inwardly to an abutment 18 bearing on the periphery of the rotor. Spring-pressed rings 7 with a split at 8 prevent leakage of fluid For reversing, an additional set of nozzles is provided. The exhaust passage 21 is located between the two sets of nozzles. The nozzles 15 are fitted with a screw thread for adjustment. The turbine may be compounded.
Patent GB-285326-A (GB)
Title: Improvements in or relating to packing cigarettes and like articles
IPC: B65D85/10
Filed: 1926-11-08
Abstract: 285,326. Molins, W. E. Nov. 8, 1926. Packing cigarettes. - A U- shaped block-ended container, in which the end adapted to be sealed is closed bv two sidetucks and two broad end flaps folded one upon the other, is provided with an extension of the final broad end flap in the form of a tongue 3 which corresponds in shape to a cut-away portion 13 at the end of the other broad end flap. The container is formed from a rectangular blank with a tongue at one end and a corresponding cut away portion at the other end.
Patent GB-441861-A (GB)
Title: Improvements in or relating to combs for the hair
IPC: A45D24/26
Filed: 1934-07-25
Abstract: 441,861. Hair combs. YOUNG, C. D., Church Road, Soundwell, Staple Hill, near Bristol. July 25, 1934, No. 21785. [Class 131] A comb for supplying a liquid dressing to the hair comprises a cranked tube c<1> provided at one end with a reservoir d<1> forming a handle, and at the other with U-shaped wire teeth a formed from a continuous length of wire. The teeth are separated by a second wire coil b wound closely on the tube c<1>, a turn of the coil b lying between each two adjacent teeth. Holes e are provided in the tube c<1> adjacent to some or all of the teeth, the holes opening into the spaces formed between the sides of the teeth, and the part of the tube c<1> within the bulb d<1> is provided with holes f.
Patent GB-1219462-A (GB)
Title: Improvements in or relating to particulate material dispensers
IPC: B65D83/06
Filed: 1968-05-09
Abstract: 1,219,462. Particulate material dispenser. AGRIPAT S.A. 9 May, 1968 [10 May, 1967], No. 21940/68. Heading B8N. A particulate material dispenser comprises a canister 4 having an outlet aperture 10, a closure member for opening and closing the aperture, a flexible transparent container 16 having a perforated end 23, the container being detachably connectible to the canister, and a cap for closing the perforated end. As illustrated the closure member 13 is rotatable to open and close the aperture 10. The container has a shoulder 18 adapted to frictionally engage with flange 12 of the closure member. Volumetric indices are provided on the container. In use the dispenser is inverted and the container rotated to open the outlet aperture 10. When a desired amount of material is present in the container the outlet aperture is closed and the cap 24 is removed.
Patent GB-816383-A (GB)
Title: Improvements in and relating to base plate for mortars and the like
IPC: F41A23/54
Filed: 1957-07-11
Abstract: 816,383. Base plates for mortars. HOTCHKISS-BRANDT. July 11, 1957 [July 18, 1956], No. 21993/57. Class 92 A base plate for a mortar comprises a flat panel 1, Figs. 2, 6 having three radial branches as shown, and a central support recess 3 for the swivel bearing of the mortar, radial fins 6 protruding perpendicularly from the under face of the panel and terminating in ground engaging points 13 and upwardly divergent curved walls 16-17, 16a-17a, 16b-17b, secured symmetrically in pairs to each of the fins above the lower edges thereof and to the side edges 5 of the panel 1 so as to constitute ground engaging wedges. Each pin point 13 is reinforced by a spade 14 and by two gusset plates 15 which connect the spade to the fin and to the adjacent ends of the walls. The angle of inclination of each of the walls relative to a plane parallel with the panel 1 progressively decreases from a value between 55 and 65 degrees at the bottom to a value between 30 and 45 degrees at the top. The recess 3 is formed in a reinforced part 2 of the panel under which is located a conical member 8 to which the fins are secured.
Patent GB-206906-A (GB)
Title: Improvements in or relating to brushes
IPC: A46D1/00
Filed: 1922-08-12
Abstract: 206,906. Lord, E. Aug. 12, 1922. India - rubber shaving- brushes.-A shaving-brush is provided with strands of rubber A formed into tufts secured in holes in the stock C. The strands may be doubled and secured bv means of a continuous cord D. The surface of the strands may be roughened, by means such as coarse sand-paper, over the whole or part of their length. Specification 204,733 is referred to.
Patent GB-170411-A (GB)
Title: Improvements in nut locks
IPC: F16B39/28
Filed: 1920-07-23
Abstract: 170,411. Charlton, A. July 23, 1920. Locking nuts. - A lock-nut consists of two parts 2, 3 having respectively a recess and corresponding projection formed on their meeting faces, and a curved arm 4 is pivoted in the recess in the part 2 to co-operate with a camgroove g in the projection on the part 3. The arm 4 has a pivot 6 which occupies an axial hole in the part 2, and the inner face of the curved portion has grooves c corresponding to the threads of the nut. To lock the nut, the part 3 is given a partial turn relative to the part 2, and the grooved arm 4 is jammed against the threads of the bolt by the action of the cam-groove g.