baber/WOPTO huggingface dataset:
Patent GB-781516-A (GB)
Title: Improvements in earth penetrating apparatus
IPC: E21B4/12
Filed: 1955-04-19
Abstract: 781,516. Boring earth and rock. CABOT. Inc., G. L. April 19, 1955, No. 11199/55. Addition to 749,148. Class 85 A percussive drilling tool has a drill bit carried by a reciprocable mass which is connected to a backing mass by a rigid connecting means having a high modulus of elasticity, the connecting means being rapidly stretched by electromagnetic means and then contracting due to its elasticity so causing the drill bit to oscillate at a high frequency. A backing mass comprising a cable socket 16, Fig. 1, a mass 10 and a tubular member 18 is connected by a rod 14 to a reciprocable mass 12 which is slidable in the tube 18 and carries a bit 20. The electromagnetic means comprise an armature 24 connected to the rod 14 and an electromagnet having a ring like core composed of L-shaped laminations 26, with windings 28, connected to the tube 18 and energized by an alternating current so as to oscillate the system at its resonant frequency. The backing mass 10, 16, 18 may be ten times the reciprocable mass 12 so that the backing mass will remain comparatively stationary. In a modification, Fig. 3, the backing mass 42 and' the reciprocable mass 44 are of equal mass and are connected by a rod 46 which is attached at its nodular point by a bracket 48 to a tubular member 40 in which bothmasses can slide. The system is vibrated as before, and the two masses 42, 44 oscillate with equal amplitudes.
Patent GB-756238-A (GB)
Title: Loft ladders
Inventor: BERNER CORREZE AAGE OSCAR
IPC: E04F11/04
Filed: 1953-04-23
Abstract: 756,238. Loft ladders. LOFT LADDERS, Ltd. July 23, 1954 [April 23, 1953], No. 11274/53. Class 20(2). A ladder 1 adapted to be lowered from a loft and spring-biased thereinto through mechanism including a radius rod 3 pivoted to the upper end of the ladder at 2 and to the loft floor at 4, has a biasing means comprising a spring plunger and cylinder device 10, 17, 7 pivoted between the radius rod at 5 and a fixed support 16 within the loft, the spring being compressed within the cylinder when the ladder is lowered. In the mechanism shown, provided at each side of the ladder, short tubes on pins 5 space the rods 6, pivoted thereon, from reinforcing plates 9 riveted to the radius rods 3 ; the rods 6 extend throughout the cylinders 7, and each has a shoulder against which a washer 11 is forced by the spring 10 encircling the rod and abutting at its other end against one of a pair of spaced collars 17 carried by a lug 15 pivoted to the fixed support 16 ; the other collar 17 serves as a stop for a washer 19 held at the far end of the rod 6 by a split pin 20 ; the cylinder 7 is slotted over most of its length to allow passage of the lug 15, and is removably held in place by a split pin 12 passing through the cylinder outside the washer 11, the other end of the cylinder being closed by a cap 13. In a modification, the plungers of spring plunger and cylinder devices are secured to the ends of rods pivoted to the radius rods, while the cylinders are pivoted to fixed supports 16 ; the ladder 1 is slidable in a bracket pivoted to the edge of the loft opening 40 and also in a bracket fixed to the upper side of a downwardly hinged cover for the opening 40. The ladder may consist of a number of slidable sections, and for heavy ladders more than one spring plunger and cylinder device may be provided at each side of the ladder or each device may have a number of springs in a common casing. The pins 5 may be offset from the radius rods 3, or the height of the supports 16 may be increased, or both, to provide an over-centre action at the lower end of the ladder movement to hold the ladder foot on the floor.
Patent GB-754962-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: ISTERLING JASPER
IPC: H04Q3/00
Filed: 1954-04-20
Abstract: 754,962. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Feb. 10, 1955 [April 20, 1954], No. 11282/54. Class 40 (4). In an exchange in which there are no individual trunks to a final selector from a penultimate selector multiple (that is, there is either full availability or limited availability with grading involving only commons or partial commons), the possibility of a calling party becoming, connected on successive calls to the same faulty final selector is reduced by (1) arranging the non-numerical stage so that successive calls go to different group selectors, and (2) introducing a slip or partial slip in the multipling from the early outlets of the penultimate selectors. The trunking for a 900-line exchange is described. The line switches are 25-point with two home positions from which they start hunting alternately, and are arranged upon 3 racks each having 12 shelves of 25 switches. The outlets from the 6 groups of 150 switches are graded in the manner shown in Fig. 5. The first or penultimate selectors are mounted on 8 shelves with their banks multipled over adjacent pairs of. shelves and give access to 5 groups of 200- point final selectors, each group being accommodated on two shelves of the final selector racks. With full availability the multipling from the outlets of the penultimate selectors for each pair of levels representing a 200-line group is normally as shown in Fig. 6. In order to provide different first-choice final selectors from different groups of penultimate selectors, a slip may be introduced in the first 4 outlets of each multiple, as in Fig. 8, or a partial slip, as in Fig. 9. In the latter arrangement the commoning may be effected at the bank terminating strip and the slip wiring at the trunk connection strips.
Patent GB-194185-A (GB)
Title: Improvements in and relating to primary cells
IPC: H01M6/06
Filed: 1922-04-21
Abstract: 194,185. Soc. Anon. le Carbone. March 18, 1922, [Convention date]. Electrodes; arrangement ; absorbents; diaphragms.-A cell consisting of zinc and carbon electrodes in an electrolyte such as a solution of ammonium chloride has the perforated zinc electrode c arranged horizontally below the carbon h in a porous vessel a, a space s being provided below the zinc to receive the zinc chloride formed during the action of the cell and so prevent it from coming into contact with the carbon electrode or electrolyte. The carbon electrode is surrounded by an agglomerate j of porous carbon which extends above the seal l into the air, and the remaining space above the zinc c is filled with a gelatinous paste k such as gelatinous silica or fish-glue or fecula boiled in water. The vessel a stands in a receptacle n containing the electrolyte, the lower portion m of the vessel a being varnished.
Patent GB-893041-A (GB)
Title: Process for the manufacture of shaped bodies of silicon carbide
IPC: C04B35/573
Filed: 1959-04-02
Abstract: Shaped bodies of silicon carbide are prepared by heating a shaped body of graphite, which may contain SiC, in an atmosphere containing silicon subhalide.  The graphite body may be shaped pure graphite or shaped commercial SiC from which Si has at least partially been removed by treatment with Cl2 or silicon tetrahalide at above 1000 DEG C.  The silicon subhalide, e.g. SiCl2, or SiBr2, is produced from Si and SiCl4 or SiBr4 respectively, and passed, if desired with H2 or A, over the graphite body at 1300-1400 DEG C.  In preparing the subhalide, the silicon tetrahalide may be replaced wholly or partially by halogen or hydrogen halide, e.g. Br2 and HBr in A.
Patent GB-488320-A (GB)
Title: Process of roasting cement, lime or similar material
IPC: C04B7/38
Filed: 1937-04-20
Abstract: Lime is produced by sintering in blast-roasting apparatus, particularly of the suction type, spongy granules prepared by atomizing raw meal through nozzles with a gaseous or vaporous medium such as air or the waste gases passing from the blast-roasting apparatus, impinging atomized water or steam on the atomized meal, and treating in a shaker conveyer or rotating drum to increase the size of the granules.  The water, which may be atomized in the same nozzle as the meal, may contain foam-forming substances such as soap, tar, oils, and fatty oils.  Alternatively the granules may be produced by blowing a hot gas or vapour, e.g. hot air, hot exhaust gases, or superheated steam in finely divided streams through a slurry of the raw material partially to dry it, the resulting granules being treated in a rotating drum before roasting.  The slurry is placed in a vessel the bottom of which is provided with a large number of small holes or nozzles which may be covered by a protecting hood, and the treated contents may be tipped out or continuously discharged by scrapers; or the slurry is treated from the outset in a rotary drum the shell of which is provided with nozzles through which the hot gases may be introduced.ALSO:Cement, lime, &c. are produced by sintering in blast-roasting apparatus, particularly of the suction type, spongy granules prepared by atomizing raw meal through nozzles with a gaseous or vaporous medium such as air or the waste gases passing from the blast-roasting apparatus, impinging atomized water or steam on the atomized meal, and treating in a shaker conveyer or rotating drum to increase the size of the granules.  The water, which may be atomized in the same nozzle as the meal, may contain foam-forming substances such as soap, tar, oils, and fatty oils. Alternatively the granules may be produced by blowing a hot gas or vapour, e.g. hot air, hot exhaust gases, or superheated steam in finely divided streams through a slurry of the raw material partially to dry it, the resulting granules being treated in a rotating drum before roasting.  The slurry is placed in a vessel the bottom of which is provided with a large number of small holes or nozzles which may be covered by a protecting hood, and the treated contents may be tipped out or continously discharged by scrapers; or the slurry is treated from the outset in a rotary drum the shell of which is provided with nozzles through which the hot gases may be introduced.
Patent GB-541220-A (GB)
Title: Improvements relating to tractors
IPC: B62D7/16
Filed: 1940-07-06
Abstract: 541,220. Changing wheel gauge. FERGUSON, H. G. July 6, 1940, No. 11331. Convention date, July 8, 1939. [Class 108 (ii)] [Also in Groups XXXI and XXIV] A tractor has an axle 8 provided with wheel-carrying members 11 secured thereto and adjustable along the axle to vary the wheel track, the steering-gear being arranged to be unaffected by this adjustment. In the construction shown the axle 8 is pivoted on a pin 7 so as to be capable of a limited fore-and-aft movement as well as rocking one. Bars 11 carrying stub-axle supports 14 are secured by bolts 13 to the axle, the bars and the axle having a series of holes 12 so as to provide the desired adjustment. The axle is steadied by radius rods 20 pivoted at 22 to the bars 11 and ball-jointed at their rear ends 23 to frame brackets 21. Thus, when the bars 11 are adjusted their outer ends move along arcuate paths and the axle centre moves forwards or backwards on the pin 7. The steering wheels 17 are mounted on stub axles 16 integral with steering pivots 15 turning in the supports 14, the steering pivots having arms 24 connected by links 26 to steering arms 28 mounted in the frame and controlled by the steering gear. In the normal or straightahead position to the steering-gear the balljoints 25, 27 at the ends of the steering links 26 are each in a vertical line above the corresponding joint 22 or 23 of the radius rods so that the steering wheels move parallel to themselves during adjustment of the bars 11 along the axle. The steering arms 28 are pivoted at 30 in the frame and their inner ends are kept in alignment by a pin 31 and are formed with toothed sectors 32 engaged by a bevel pinion 34 on the steering shaft 35.
Patent GB-113708-A (GB)
IPC: E04H15/60
Abstract: 113,708. Richards, D. Aug. 15,1917. Tent poles.-In tent poles provided with spring compensating- devices at intervals along their length, each end of a section a of the pole is made of a reduced diameter and fitted with a metal sleeve, the diameter of one sleeve e being such that it will slide smoothly within the other one c. The spring f is, enclosed by the sleeves.
Patent GB-167225-A (GB)
Title: Improvements in breech loading sporting guns and in the manufacture of the same
IPC: F41A21/06
Filed: 1920-04-24
Abstract: 167,225. Rose, B. April 24, 1920. Barrels. - Relates to double - barrelled drop-down guns, of the kind in which the lump is formed in one with a plate having on its upper face two longitudinal grooves in which the barrels are secured by brazing or soldering. According to the invention, the plate a, with its lump a<1> and grooves a<2>, is formed by a rolling process and the grooves are afterwards machined to the same taper as the barrels. The side webs a<4> are :'ormed sufficiently thick at the top to allow of the brazing operation. After brazing, the side webs are machined flush with the sides of the barrels.
Patent GB-953805-A (GB)
Title: Improvements in or relating to directional aerial systems
Inventor: WOLOSZCZUK EDMUND WERGILIUSZ
IPC: H01Q11/10
Filed: 1961-03-29
Abstract: 953,805. Aerials. MARCONI CO, Ltd. Sept: 26, 1961 [March 29, 1961], No. 11499/61. Heading H4A. An aerial system comprises a plurality of linearly disposed conductor pairs of progressively differing lengths, each pair being composed of equal length conductors connected together at one end and being close to each other, the ratio of the electrical length of each conductor pair to that of the next, shorter, pair being constant throughout the system, and a plurality of collinear series-connected connectors each connecting the free end of one conductor of a pair to the free end of a conductor of the next pair of shorter length, the ratio of the electrical length of each conductor pair to that of the connector connecting it to the next shorter pair being constant throughout the system. One embodiment, Fig. 1, comprises a plurality of conductor pairs P1 to P11 each consisting of a pair of closely spaced conductors 1 and 2 connected together at their upper end, the pairs being supported parallel to each other by a stay S from a mast M. These are connected in series by collinear connectors C2 to C11 and the ratio of the electrical length of each pair to that of the connector connecting it to the next, shorter, pair is made constant throughout the system, and the lengths of the pairs increase logarithmically from the shortest P1 to the longest P11. The dimensions are such that one conductor pair is, at one frequency of the bandwidth of the aerial, a quarter of a wavelength long and is spaced from its shorter neighbour by one quarter to one twentieth of that wavelength. The connectors C2 to C11 may be the central conductor of a coaxial feeder, Fig. 1a, and further embodiments form balanced aerials. Yagi arrays of directors may be used with the system as, for example, with an embodiment producing circularly polarized radiation, Fig. 7. Reference has been directed by the Comptroller to Specification 884,889.
Patent GB-926903-A (GB)
Title: Polymer treatment
IPC: C08L59/02
Filed: 1960-04-01
Abstract: A process for the production of oxymethylene polymers of high molecular weight and having enhanced properties as a material for shaping under heat and pressure, comprises heating a polymer consisting mainly of oxymethylene groups and a smaller proportion of substituted or unsubstituted oxyalkylene groups having adjacent carbon atoms to a temperature between 50 DEG C. below and 60 DEG C. above its melting point while permitting the escape of volatile materials therefrom and continuing the heating until the initial thermal degradation rate of the polymer is not substantially higher than the base thermal degradation rate of the polymer before treatment by the process of the invention.  The polymer may be worked during heating to expose fresh surfaces thereof. During the initial stages of the process chemical stabilizers may be incorporated, particularly phenolic anti-oxidants and chain scission inhibitors which are compounds and polymers containing trivalent nitrogen atoms preferably bonded only to carbon and hydrogen, many suitable stabilizers being listed.  The polymers may be copolymers of formaldehyde or trioxane with ethylene oxide, dioxolane, alkylene carbonates, vinyl ethers, dihydropyrane and 2-ethoxydihydropyrane, particularly the polymers described in Specifications 877,820 and 903,668.  Examples describe the preparation of a trioxanedioxolane copolymer in cyclohexane in the presence of dibutyletherate of boron trifluoride (I) and the milling and heating of trioxanedioxolane copolymers with 4,41-butylidene-bis-(6-t. butyl, 3-methylphenol) and (I) a terpolyamide of caprolactam, hexamethylene adipamide and hexamethylene sebacamide; (II) a polyurethane; and (III) methoxymethylated polyhexamethylene adipamide; and with 2,21-methylene-bis-(4-methyl, 6-t. butyl phenol) and (IV) N-hydroxymethyl polyacrylamide; (V) sebacic dihydrazide; (VI) malonamide; (VII(b)) 4,41-butylidene-bis-(6-t. butyl, 3-methyl phenol) and sebacic hydrazide; and (VII(c), VIII and IX) polyvinyl pyrrolidone.
Patent GB-1038132-A (GB)
Title: Improvements in or relating to reciprocating pumps for liquids
IPC: F02M41/14
Filed: 1962-03-27
Abstract: 1,038,132. Fuel injection pumps. Z. S. MIRACKI and A. LINDSAY. March 13, 1963 [March 27, 1962], No. 11573/62. Heading F1A. The plungers of a rotating distributing type fuel injection pump have outer members 4 formed with cam surfaces which are engageable with rollers 6. Entry of fuel to the cylinder bore is controlled by a sleeve surrounding an end of the distributer, the sleeve being angularly and axially adjustable to vary the point of admission to the bore and spill respectively.
Patent GB-161450-A (GB)
Title: Improvements in pocket clips for holding pencils or the like
IPC: B43K29/06
Filed: 1920-04-27
Abstract: 161,450. Fredriksen, K. April 27, 1920. Pencil - sharpeners. -A clip for holding a pencil in the pocket is combined with a pencil - sharpener 4 secured by soldering, riveting, or the like to the spring portion 3 which grips the pocket 5 against the pencil.
Patent GB-352995-A (GB)
Title: Improvements in or relating to railway locomotives driven by diesel engines
IPC: B61C9/08
Filed: 1930-04-12
Abstract: 352,995. Diesel engine locomotives. FONTY, H., 77, Avenue de la Muette, Paris. April 12, 1930, No. 11674. [Classes 79 (i) and 79 (iii).] In a locomotive driven by a Diesel engine with oppositely-working pistons the engine cylinders are inclined to the horizontal plane, one piston acts directly on a crank axle of the locomotive and the other piston acts on a crank shaft A coupled to a lay shaft 2 which is coupled to the driving axles. The volume of the combustion chamber may be varied by the means shown in Fig. 2, in which the effective length is varied of the piston rod CG driving the crank shaft A. The rod is made in two parts pivoted together at F and the point F is controlled by a rod FH swinging about a point H which is movable along the line K, K<1>. The point H may be carried by an eccentric controlled by an electric servomotor which also controls the scavenging blower 5 and the output of the fuel pumps. The engine is started by auxiliary means such as steam, air, or electric power. In the construction shown an auxiliary Diesel engine 3 drives an electric generator supplying power to auxiliary machines and also to an auxiliary propelling motor 4 driving the locomotive axles. When steam or compressed air is used the ends of the Diesel engine cylinders can be used as steam or air cylinders. The exhaust gases can be used to generate steam or to drive auxiliary machines by means of gas turbines.
Patent GB-577014-A (GB)
Title: Improvements in speed control systems
IPC: G05D13/00
Filed: 1941-09-11
Abstract: 577,014. Gas turbines. SMITH, D. M., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 11, 1941, No. 11674. [Class 110 (iii)] The fuel control of a gas turbine for propelling aircraft is such that, for each position of the control, the turbine runs at a corresponding speed, irrespective of the load on the turbine. When the turbine is running at speed, the fuel port 15 is fully open and fuel oil delivered by a pump 1, driven by the turbine, passes to it by way of an orifice 2 of fixed value and a port 12 controlled by the piston valve 11. If, with the control in a set position, the speed rises, owing to disminished load, the flow of oil in pipe 14 rises correspondingly and the drop in pressure across the orifices 2 and 12, in parallel, increases. This pressure difference, by means of connections 32, 33, is applied to a floating piston valve 25 and an increase will cause the valve 25 to open a port 30 through which oil is by-passed back to the pump 1 until the speed has returned to the correct value. A second by-pass 39 is controlled by an emergency speed governor and a relief valve 6 prevents excessive pressure in the system. A piston valve 10 of the control regulates a by-pass 5 during starting.
Patent GB-415004-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C17/06
Filed: 1934-04-19
Abstract: 415,004. Axial - - thrust bearings. AKTIEBOLAGET NOMY, Ulvsunda, Sweden. April 19, 1934, No. 11823. Convention date, April 29, 1933. Addition to 382,843. [Class 12 (i).] A modification of the axial-thrust bearing according to the parent Specification has the unloading zones enabling the tiltable blocks 2 to change their supporting surfaces, formed by deformable portions 8 of the element 5 on which the sliding surface 6 is formed. The portions 8 are formed by recessing the element 5 at diametrically opposite points, the recesses 7 being from 2 to 2¢ times the peripheral length of the blocks so that a block over the centre of the recess is clear of the sliding surface due to the depression of the portions 8 by the adjacent loaded blocks. The element 5 may alternatively have a uniform thickness equal to that of the portions 8, and be supported on a further member with recesses similar to the recesses 7 in its upper surface. The blocks 2 are supported on a ring element 4, connected to the shaft, by grooves and recesses, and diametrically opposite blocks are connected by holder rings all as described in the parent Specification.
Patent GB-857941-A (GB)
Title: Improvements in or relating to switches for portable electric tools
IPC: H01H1/58
Filed: 1956-04-18
Abstract: 857,941. Switch bases. BLACK & DECKER Ltd., and BLIGHT, N. J. July 3, 1957 [April 18, 1956], No. 11856/56. Class 38 (5). [Also in Group XXXVI] The casing 1 of a switch mounted in the handle of a portable electric tool has grooves 8, 9 on its outer surface to accommodate supply wires to the terminals 4, 5, the wires being held in place by insulating covers 2, 3 when the switch is located within the handle. Alternatively, a single cover of polyvinyl-chloride may be used. The edges of the casing may also have grooves leading to the grooves 8, 9.