baber/WOPTO huggingface dataset:
Patent GB-331149-A (GB)
Title: Improvements relating to masts or posts for electric conductors
IPC: E04H12/22
Filed: 1929-10-01
Abstract: 331,149. Maroni, J. Oct. 1, 1929. Reinforced - concrete posts; bases for posts; connections.-A mast for overhead electric conductors comprises a wooden post detachably carried by a concrete pedestal which is longitudinally and transversely reinforced. In the construction shown in Figs. 1 and 2, a wooden post 1 rests on a pedestal 2 formed, partially hollow, of concrete. Longitudinal reinforcing rods 3 and an iron helix 4 are embedded in the concrete pedestal 2. The post 1 is connected to the pedestal 2 by U-irons 5 bolted to the pedestal 2 and clamped to the post 1 by flat iron stirrups 7 hooping the irons 5, and adapted to be screwed up by bolts 8 connecting the bent-back ends of the stirrups 7. In the modified construction shown in Fig. 4, a single sleeper 11, bolted to the pedestal 2, is laterally pierced for the passage of cramps 12, through eyelets in which are passed the threaded ends of a stirrup 13. Nuts 14 on the threaded ends press the post 1 tightly against the sleeper 11. In a further cor.struction, the wooden post is held between two sleepers by bolts passing through the eyelets of two pairs of cramps.
Patent GB-1092075-A (GB)
Title: Magnetic drill mount with base magnet having enlarged outer pole areas
IPC: B23Q3/154
Filed: 1966-07-01
Abstract: 1,092,075. Drilling stands. BUCK MANUFACTURING CO. July 1, 1966 [Aug. 31, 1965], No. 29729/66. Heading B3B. [Also in Division H1] The base of a mounting for a portable electric drill comprises an electromagnet having a core of magnetic material which supports a magnetiz - ing coil 28, the core including an inner pole face 30 surrounds by a substantially circular or rectangular outer annular pole face 31, the latter having the thickness of a portion or portions of its length increased to allow the drill to be supported on narrow work surfaces. The drill supporting column is rotatably mounted on the base and may be locked in any angular position, and for increased stability the column includes an adjustable leg (11a) (Fig. 1, not shown) which is aligned with the drill bit and the thicker portion or portions of the pole face 31 and which may be screwed down to contact the work surface.
Patent GB-797889-A (GB)
Title: Resilient cushion plates for railway track rails
Inventor: HOFER MARC
IPC: E01B9/68
Filed: 1954-10-15
Abstract: 797,889. Rail or chair pads. SOC SIDERVIA SOC. ANON. Oct. 14, 1955 [Oct. 15, 1954], No. 29805/54. Class 104 (2). A rail or chair pad comprises a flat plate of elastomeric material provided on both faces with crooked or sinuous grooves 3, 4 and each groove comprises a series of groove elements which are alternately inclined in opposite directions. The grooves 3, 4 are alternately disposed on opposite sides of the plate. Specification 652,305 is referred to.
Patent GB-139137-A (GB)
Title: Improvements relating to lubricating pumps
IPC: F16N13/04
Filed: 1919-01-27
Abstract: 139,137. Williams, H. Jan. 27, 1919. Cam - actuated pumps; stroke, varying.-Relates to pumps for lubricating motorcycle, motor-car, and other engines. The plunger m, Fig. 1, is reciprocated by a cam p rotating in a bridle-rod n hinged to the plunger. The stroke is adjusted by varying the position of a tapered piece r by means of a lever which may be actuated with the throttle valve. The cam is formed in one with a plate v driven by a pin w in a toothed wheel x mounted loosely on an eccentric portion of an engine-driven shaft z. The wheel is slightly smaller in diameter than a toothed ring w secured to the pump casing, so that it is rotated at a much reduced speed by the shaft z.
Patent GB-430638-A (GB)
Title: Improvements in circular knitting machines and methods of knitting thereon
IPC: D04B9/00
Filed: 1934-10-18
Abstract: 430,638. Knitting-machines. HEMPHILL CO., Central Falls, Rhode Island, U.S.A.- (Assignees of Lawson, R. H. ; 55, Cooke Street, Pawtucket, Rhode Island, U.S.A.) Oct. 18, 1934, No. 29842. Convention date, Oct. 25, 1933. [Class 74 (ii)] Circular knitting machines with independent needles applicable in particular to the knitting of heels and toes, split-work or other reciprocating work and wrap stripes, are provided with means whereby the use of a latch ring is avoided. Each needle is provided with a companion jack 4, the needle and jack are held together by the spring bands 5. Preparatory to reciprocatory knitting the jacks around one-half of the cylinder are separated from their needles by the action of an instep cam 23 on long jack butts 6, the corresponding needles being held down by passage of their butts under a ledge 27. The needles separated from jacks reciprocate idly with their butts below the knitting cams and retain their loops on the latches no latch ring being necessary to prevent closure of the latches. As reciprocating knitting proceeds, the short jack butts are engaged in turn by a narrowing pick 29 to join the instep jacks and subsequently are picked down by widening picks. The pick 29 is guided in its movement by a bracket 30 with bayonet slot 31. Specifications 20101/09 and 314,876, [both in Class 74 (ii)], are referred to.
Patent GB-1496477-A (GB)
Title: Film carrying rollers
IPC: G03D3/08
Filed: 1976-07-19
Abstract: 1496477 Rollers R OHTOMO 19 July 1976 [8 April 1976] 29891/76 Heading F2U A film carrying roller for accommodating two different widths of film comprises a groove 2 with a sloping bottom 11 and an elastic tyre 7b disposed in a recess in the bottom and formed with a convex outer surface 10, the slopes of the bottom extending to a position of greater radius than that of the peak of the convex surface of the tyre. A film 4b would occupy the space shown and a film of larger width (4a) Fig. 3 (not shown) would seat on the sloping bottom (11) clear of the tyre (7b). Described as prior art is a roller having a tyre of soft rubber formed with projections and a roller having a groove and recess and no tyre.
Patent GB-1114073-A (GB)
Title: Improvements in or relating to an extracting cage for a machine for continuously casting metals
IPC: B22D11/128
Filed: 1966-07-04
Abstract: 1,114,073. Continuous casting. GOSUDARSTVENY SOJUZNY INSTITUT PROJEKTIROVANYA METALLOURGITCHESKIKH ZAVODOV. 4 July, 1966 [6 April, 1966], No. 29893/66. Heading B3F. In a cage of superimposed pairs of opposed withdrawal rolls 5 for a vertical continuous casting 4, the roll bearings 3 are horizontally slidable in a support frame 1, one roll being secured in a position determined by at least one adjusting device such as a screw 7, acting on its bearing 3, but the remainder each being urged towards the casting 4 by at least one jack 6, each pair of jacks having its own independent hydraulic circuit so that failure in one pair of rollers does not hinder the withdrawal of the casting. The position of the roller adjusted by the screw 7 determines the relative positions of the whole withdrawal cage and the casting 4. The screw 7 and jacks 6 act on spindles of the rolls 5 by way of their bearings 3 which slide in slots 2 in the support frame 1. Several pairs of rollers may be provided with the adjusting device such as the screw 7, one to each pair.
Patent GB-209872-A (GB)
Title: Improvements in and relating to abrasive sheet material
Filed: 1922-11-01
Abstract: 209,872. White, A. E., (National Lead Co.). Nov. 1, 1922. Emery and sand cloth and paper.-Water-proof abrasive sheet material, for example, sand-paper, flint or garnet paper, and emery cloth, is prepared by immersing the paper or cloth base in cotton-seed oil, thinned if necessary with benzine, which afterwards is evaporated, applying to the base a coating of adhesive comprising a baking varnish, covering the .adhesive with abrasive grit, applying a second coat of adhesive, and baking at a temperature exceeding 140‹ F. Instead of cotton-seed oil, any non-drying oil may be used, for example, soya bean oil, lard oil, or corn oil. The varnish comprises a drying oil, for example, linseed oil and tung oil, or an oil with a dryer, bodied with resin or gum, the varnish being such that the oil forms a local mixture with the waterproofing agent on the base. The duration and temperature of the baking may be varied in order to vary the pliability of the sheet and to suit the size of the grit, for example, fine grain sand-paper requires a short or moderate baking, and paper for severe use requires a harder baking. The adhesive may be applied first, and the waterproofing agent afterwards.
Patent GB-822415-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: SMITH ROY JACKSON
IPC: G21D3/10
Filed: 1956-10-01
Abstract: 822,415. Controlling nuclear reactors. GENERAL ELECTRIC CO. Ltd. Sept. 26, 1957 [Oct. 1, 1956], No. 29924/56. Class 39(4). [Also in Group XXXV] Control means for a nuclear reactor power plant maintain a predetermined relationship between neutron flux within the reactor core and the flow of cooling medium through ducts in the core, thereby reducing thermal shock to which the reactor is subjected. The plant is set to operate on a particular loading by moving a key 8 to energize one of two contactors 10, 12 causing forward or reverse drive of a motor 7, which has a maximum speed corresponding to a change of 5% full load per minute. This motor 7 drives a shaft 3, to vary potentiometers 1 and 2 and 55 to 58, Fig. 1c. Flux control.-The setting of potentiometer 1 is compared in an automatic flux regulator 13 with the neutron flux as measured with an ion chamber 15. An error signal obtained from this regulator causes a motor 18 to drive a low frequency generator 21 through a clutch 22. This generator controls a winch to adjust the extent of insertion of control rods 34 in the reactor core as described in Specifications 822,413 and 822,414 [Group XXXV]. By changing over switches 33 the generator 21 can be manually controlled at 27. Controlling flow of cooling medium.-The shaft 3 also sets a potentiometer 2 according to the required load. This setting is compared in a polarized relay 36 by current in coil 35 with the total flow of cooling medium as measured at 39 and producing current in an opposing coil 41. When the balance of relay 36 is disturbed, a relay 45 or 46 is operated to drive ganged phase shifters 47 controlling circulators 49 of the cooling medium. Manual control at 75 is effected by changing over a switch 74. The flux /flow relationship is recorded at 50, an excessive ratio operating alarm circuits 53 and subsequently tripping the reactor. Safety and recording gear.-The setting of the potentiometer 55 is compared with the neutron flux as measured at 60 and the result is recorded at 59, an alarm circuit 62 being energized if the drift exceeds  2%. The remaining three potentiometers, 56, 57 and 58 similarly provide comparison with the neutron flux as measured at 66, 67 and 68 to actuate relays and shut down the reactor in the event of any two ratios being excessive. Automatic control of the load setting.-The motor 7 may be operated automatically either as a result of variation in the pressure of steam generated by the cooling medium or by the output of a turbo alternator driven by this steam, A frequency sensitive network 85, Fig. 3, is supplied at 84 from the alternator output and an error signal from this network actuates either of polarized relays 96, 97 to energize the motor 7 and re-set the shaft 3. Preferably this network has an inherent delay, and an alternative form including an eddycurrent disc relay is described with reference to Fig. 4 (not shown).
Patent GB-1219073-A (GB)
Title: Linear array antenna
IPC: H01Q21/08
Filed: 1958-09-18
Abstract: 1,219,073. Aerials. CANADIAN ARSENALS Ltd. 18 Sept., 1958 [24 Sept., 1957],No.29991/58. Heading H4A. A squint-free constant impedance beacon antenna comprises a linear array of radiating elements 3 with beam-forming plates 1, fed by a dissymmetrical pair of feed sections of which Fig. 6 shows one. The radiating elements are sections of waveguide one wavelength long with short circuiting plates at each end. Each has a pair of broad radiating slots 4 and is fed by a symmetrically placed broad-band probe 10, so that impedance matching is maintained over a wide band of frequencies. Each feed section is a series of quarter-wave transformers arranged to distribute energy to the radiating elements according to a calculated radiation pattern, and comprises parallel conducting plates 11, 13 separated by polystyrene spacers 12 which support a centre conductor of varying diameter. The input is on the right and there is an output for each radiating element in one half of the antenna. The cables between the feed section and radiating elements have a common impedance and are adjusted in length to fix the phase of the signal at each radiating element; the elements are generally in phase.
Patent GB-662922-A (GB)
Title: Improvements in or relating to multiplex carrier-frequency electrical signal transmission systems
IPC: H03B19/12
Filed: 1949-11-23
Abstract: 662,922. Multiplex systems. WESTERN ELECTRIC CO., Inc. Nov. 23, 1949 [Nov. 27, 1948], No. 30027/49. Drawings to Specification. Class 40 (iv). [Also in Group XL (c)] In order to obtain a plurality of carrier waves of different frequencies for a multiplex communication system, the carriers being of such phase that they never all come into phase coincidence, a high-frequency source is frequency-modulated by a saw-tooth wave of lower frequency, the side-bands thus produced being separated by filters and used as carriers. The high-frequency source may contain substantial harmonic components and may, for example, be a saw-tooth generator.
Patent GB-226233-A (GB)
Title: Alternating/direct current converter with wide voltage regulation
IPC: H02K47/08
Filed: 1924-12-15
Abstract: 226,233. La Cour, J. L. Dec. 15, 1923, [Convention date.]. Systems depending on the use of static transformers.-The direct-current voltage of a rotary converter R is varied in the ratio of about 4 : 1 by employing on the alternating-current side a voltage regulator with a 2 : 1 ratio the direct current leads LN being connected either across the brushes B<1>, B<2> of the converter, or between one of the brushes B' and the neutral point O. In the arrangement shown, three-phase mains TN are connected to an auto-transformer comprising windings V<1> - - V<3> and W<1> - - W<3>. The two windings in each phase, e.g. V<1>, W<1> have approximately the same number of turns and are wound on the same core. The slip rings S' - - S<3> of the converter are connected to contact-arms k<1> - - k<3> moving over the windings W<1> - - W<3>. By moving these contact-arms from the outer to the inner ends of the windings, the voltage supplied to the slip rings is reduced in the ratio 4:2. To obtain a further reduction in the ratio 2:1, the direct-current circuit is momentarily opened by a switch u coupled to the contact-arms, the contact-arms are then moved to the outer ends of the windings, and the switch u is thrown over to connect one of the direct-current lines to the neutral point O. These operations, which are performed nearly simultaneously, produce no change in the directcurrent voltage, but the latter can now be further reduced ir. the ratio 2 : 1 by again moving the contact arms K<1>, - - K<3> over the windings. In a modified arrangement an induction regulator with rotatable secondary windings connected to the slip rings, is employed. By moving the rotor of the induction regulator through 180‹, voltage regulation in the ratio 4 : 2 is obtained. At this point, a controller reverses the secondary windings and connects one of the direct-current lines to the neutral point, whereupon further rotation of the rotor through 180‹ produces an additional voltage regulation in the ratio 2 : 1. The induction regulator may be constructed partly as an auto-transformer, the reversing switches being connected to tappings on the primary windings.
Patent GB-1119385-A (GB)
Title: Process of producing temperature responsive actuators
IPC: G01K5/32
Filed: 1966-07-05
Abstract: 1,119,385. Temperature responsive actuating elements. THERMAL HYDRAULICS Inc. July 5, 1966 [July 12, 1965], No.30078/66. Heading G1D. A temperature reponsive actuator comprises a chamber 22 containing an electrical heating element 23 and filled with a thermally expandible material e.g. wax which acts on a piston shaft 19 slidably mounted in bearings 21 in an end cap 25 of the actuator. A method of making the actuator is described in the specification in which with the cap 25 removed, the chamber 22 is filled with wax which is then heated in vacuo for a time to expel air from the wax. The actuator is then assembled and placed under its working load at its normal waxing ambient temperature and a small hole is drilled through into the chamber 22 to allow escape of excess wax. The small hole is subsequently sealed and the actuator is then ready for use.
Patent GB-1479771-A (GB)
Title: Process for the manufacture of steroid-oxiranes
IPC: C07J21/00
Filed: 1974-07-08
Abstract: 1479771 Preparation of steroid-oxiranes SCHERING AG 8 July 1974 [7 July 1973] 30094/74 Heading C2V Steroid-oxiranes containing the grouping wherein C s  is a 3-, 6-, 11-, 12-, 17- or 20-carbon atom of a steroid of which St is the remainder of the molecule are prepared from the corresponding steroid ketones and dimethyl sulphonium methylide in a polar solvent in the presence of an alkali metal alcoholate of a tertiary alcohol. Under these conditions an α,#- unsaturated keto group is not attacked. The reagent is advantageously formed in situ from trimethyl sulphonium iodide.
Patent GB-215313-A (GB)
Title: Improvements in fluid pressure braking apparatus
IPC: B60T13/40
Filed: 1923-11-29
Abstract: 215,313. Westinghouse Brake & Saxby Signal Co., (Assignees of Compagnie des Freins Westinghouse). May 3, 1923, [Convention date]. Fluid-pressure.-Relates to fluid-pressure braking apparatus for railway trains comprising accelerating chambers into which the train-pipe is vented by the triple valves in applications of the brakes and consists in the provision of means for closing the exhaust passage from these chambers when valves for retaining a minimum pressure in the brake cylinders during the release of the brakes are operative as on gradients whereby the accelerating device is ineffective except during the initial application of the brakes. Fig. 1 shows an arrangement when a removable retaining valve is employed. This valve 10, 13 is adapted to be secured to a stationary head 11 and is then connected' by a pipe 8 to the brake cylinder exhaust passage of the triple valve 2. It is provided also with a passage 13 connected by a pipe 9 to the exhaust port of the accelerating bulb 3, this passage 13 being closed by the rubber gasket 12 when the valve is in position. The brake cylinder is shown at 1 the auxiliary reservoir at 6 and the train-pipe at 4. A simple cutout cock may instead be disposed in the pipe 9. When the retaining valve is stationary, a cock 15, Fig. 3 may be provided adapted in one position to connect the pipe 8 to the retaining valve proper 16 and to close the pipe 9 as shown and in another position to cut off the connection of the pipe 8 to the retaining valve and to connect the pipe 9 to an exhaust passage 18.
Patent GB-930545-A (GB)
Title: Improvements in or relating to magnetic transducing arrangements comprising at least one magnetic recording head
IPC: G11B5/03
Filed: 1959-09-04
Abstract: 930,545. Magnetic recording heads; local circuits. TELEFUNKEN G.m.b.H. Sept. 4, 1959 [Sept. 4, 1958], No. 30184/59. Class 40 (2). To improve the high-frequency response in magnetic recording, bias current is applied at the gap 2 of a recording head to produce a localised bias field. A gap-spacer such as beryllium copper 5 may form the bias winding, the audio current being applied to a coil 4 in the usual way. If the core 1 is of high electrical conductivity, insulators 10 may be placed on one or both sides of the spacer 5 as in Fig. 4 (or Fig. 3, not shown). Alternatively, the bias winding may take a hairpin form, Fig. 5, or may be a winding 14 mounted closely behind the recording gap 2, Fig. 6.
Patent GB-192520-A (GB)
Title: Improvements in or relating to gas fired furnaces
IPC: F23C99/00
Filed: 1921-11-12
Abstract: 192,520. Laycock, S. Nov. 12, 1921. Valves, reversing and like.-For cooling the reversing-valve I of a gas-fired furnace, cooling- boxes H of uniform section and separate and distinct from the valve casing, are mounted on flue walls G to form seatings for the valve. Air from the atmosphere is led through flues K to the cooling-boxes and discharges therefrom into the chimney flue N. Gas from a producer passes to a box A through a cylinder B provided with ribs J and thence through the valve I to the flue D. A reversing-valve for admitting air for combustion of the gas is also provided.
Patent GB-465133-A (GB)
Title: Improvements in or relating to guards for the contacts of electromagnetic relays such as are used in telephone systems
IPC: H01H50/02
Filed: 1935-11-01
Abstract: 465,133. Light current relays. STANDARD TELEPHONES & CABLES, Ltd., and POWELL, F. G. S. Nov. 1, 1935, No. 30226. [Class 38 (v)] A guard for preventing damage to the contact springs of telephone-type relays is formed as shown in Figs. 1 and 2 of a clip-on member of springy metal which comprises a flat portion 10 and downturned arms 11. As this is placed on the relay, Fig. 3, the arms 11 are sprung apart as by means of a special tool so that inwardly turned bifurcated lugs 15 engage the sides of the yoke 1 and the edge of the coil cheek 16, the portion 10 being pushed forward over the top of the porcelain member 6 and screws 7 and 8 so that a circular hole 14 snaps over the head of the screw 7 and the elongated hole 13 embraces the top of the screw 8 and the upward projection of the member 6. In this position the forward edges of the legs 11 project beyond the ends of the contact springs 5 so that the edge of the cover if pushed towards the springs will encounter the legs 11 of the guard and be prevented from damaging the springs. The hole 14 is slightly larger than the head of the screw 7, Fig. 4, so that if the edge of the cover engages the guard the latter will have a slight free movement to absorb the shock of the impact.
Patent GB-1009410-A (GB)
Title: Improvements in or relating to pumps
Inventor: BROWNE LINDSAY HUGH
IPC: F04B43/10
Filed: 1962-08-07
Abstract: 1,009,410. Reciprocating pumps; flexible chamber compressors. DE LAVAL TURBINE Inc. Aug. 7, 1962, No. 30281/62. Headings F1A and F1N. In a liquid pressure actuated pump for liquids or gases comprising a flexible chamber 18, Fig. 2, e.g. of synthetic rubber, distensible by liquid pressure to deliver the contents of a pumping chamber 16, collapsing of chamber 18, after release of the actuating liquid pressure, is effected by liquid pressure acting on a piston 96 connected by a rod 74 to the base 84 of chamber 18. Complete collapsing of chamber 18 is prevented by the trapping of actuating liquid within it by a seal 92 on plate 84. Expanding movement of chamber 18 is limited by a collar 144 on rod 74 engaging a spring-loaded sleeve 130 and moving it downwardly to uncover ports 126 to exhaust the actuating liquid from chamber 18. Double check valves, e.g. of rubber, are provided in the inet and outlet of chamber 16. In one embodiment, two pumps are actuated alternately by pressure liquid supplied by a variable-displacement pump, and distributed by a motor-reciprocated slide valve. The pistons 96, 96<SP>1</SP>, Fig. 5, effecting the collapsing of chambers 18 are hydraulically connected via an accumulator 106 housing a gas envelope 110, and maintained under pressure by an oil pump P. The expansion of one chamber 18 effects the collapsing of the other chamber 18 through pistons 96, 96<SP>1</SP>. The output of the pumps is variable by varying the output of the driving liquid pump, and by varying the rate of reciprocation of the distributing slide valve, the liquid pumped may be heavy slurry, sludge, chemical, radioactive or sterile.