baber/WOPTO huggingface dataset:
Patent GB-353421-A (GB)
Title: Improvements relating to telephone instrument circuits
IPC: H04M1/58
Filed: 1930-04-17
Abstract: 353,421. Substation circuits. STANDARD TELEPHONES & CABLES, Ltd. and LEE, A., Columbia House, Aldwych, London. April 17, 1930, No. 12192. [Class 40 (iv).] In an anti-side-tone substation circuit employing a three-winding induction coil, the windings P, S, S1 are connected in series as shown so as to be capable of construction as a four-terminal unit, the receiver F is connected in shunt across the third winding S1, and the switch-hook contacts CS are so arranged that the bell B is not normally short-circuited by the coil windings. The balancing high resistance r may be in the form of an additional non-inductive winding on the coil core or an extra resistance may be eliminated by suitably proportioning coil S1 Specification 146,880, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-990329-A (GB)
Title: Apparatus for forming and removing condensed metal crowns
IPC: C22B5/04
Filed: 1964-03-23
Abstract: The tapered condensing section 5 of a metal-producing retort 1 is provided with a wedge 13 for supporting the condensed metal 24; the wedge has tapered major surfaces 14 and tapered minor surfaces 15, 16 which are a loose fit within the section 5.  The wedge may be mounted on a loosely-fitting baffle plate 19. <PICT:0990329/C6-C7/1>
Patent GB-1390186-A (GB)
Title: Identification systems
IPC: H04B5/00
Filed: 1971-04-29
Abstract: 1390186 Inductive signalling TELEDICTOR Ltd 3 May 1972 [29 April 1971] 12283/71 Heading H4U In a system for identifying objects, e.g. for cow identification and feed control, each of the objects carries a resonant circuit arrangement LC which may be, for example, resonant at three out of a series of discrete frequencies f 1 ,f 2 ,f 3 ... f 10 , f 11 . An oscillatory circuit OSC is controlled by a counter C so that the frequencies f 1  to f 11  are transmitted sequentially via a transmitting coil Tx and a receiving coil Cr is arranged so that in the absence of a circuit LC no signal is received. If a circuit LC tuned to three of the frequencies is in the vicinity of the two coils, only those three frequencies are received and these frequencies are amplified at A, rectified at R and fed via a level detector D to a plurality of gates. The counter C enables the gates G1 &c. in sequence in correspondence with the transmission of frequencies f 1  to f 11 , and signals are passed to the relevant stores M1, M2, M3 &c. indicating the reception of the three frequencies. This identification signal is then passed to a processing unit P and the stores are reset for a further identification operation. In the example given false identification could arise due to harmonics since the frequencies used are 20 kHz, changing in steps of 5 kHz up to 70 kHz and f5=2f1; f 7 =2f2; f9=2f3; f 11 =2f 4 . To prevent this, the gates G1, G2, G3, G4, are not connected to level detector D but are connected to level detector D2 fed from filters F5, F7, F9, F11 responding to the frequencies f 1 , f 2 , f 3 , f 4  respectively.
Patent GB-143035-A (GB)
Title: Improvements in and in connection with portable buildings
IPC: E04C2/38
Filed: 1919-05-16
Abstract: 143,035. Lee, J. W. May 16, 1919. Panels and panelled work.-For the construction of portable buildings, sheets of asbestos a are reinforced on both sides by strips of wood b which may run longitudinally and transversely on both sides or in one direction only on one side. Nails or bolts d secure the strips together, and adjacent panels are secured to each other by bolts passed through the edge strips or rails. Roof panels are made in a similar manner and are connected to the wall panels by angled plates. The edges of the wooden strips may be trimmed for joints other than right-angled. The joints between the sides and roof may be covered by additional inside and outside strips.
Patent GB-1137933-A (GB)
Title: Dispersion strengthened nickel-chromium and nickel-chromium base alloy compositions
IPC: C22C1/10
Filed: 1966-03-21
Abstract: 1,137,933. Sintered oxide dispersion strengthened Ni-Cr. SHERRITT GORDON MINES Ltd. March 21, 1966 [April 2, 1965], No.12384/66. Headings C7A and C7D. A dispersion strengthened Ni-Cr base alloy is formed from a powder mixture of a refractory oxide, Ni-Cr and 0À5-5% weight of at least one metal, such as Mg, Be, Th, Ti, Ca, Zr, Ce, Y, Hf the oxide of which has a heat of formation at 1000 C. of 70 or more kilocalories per gm atom of oxygen, the mixture being compacted, sintered at 980 -1200 C. and hot and cold worked with intermediate anneals, the added metal reacting with oxygen in the Ni-Cr to form a refractory oxide in situ. The powder mixture may contain 10-40% weight Cr, 0À5-5% volume of a preformed refractory oxide such as an oxide of Y, Th, Ca, Mg, Zr, Si, Be, Hf, Ce, Al, Ti, U, La, 0À05-5% weight of the oxide forming metal and the balance Ni with an optional addition of 5% N6. The Ni should be less than 5 micron size, the Cr minus 200 mesh Tyler, the refractory oxide less than 100 milli microns as an aquasol, and the metal minus 200 mesh. The powders may be dry mixed together but the preferred method is to deposit the Ni powder from a solution of a Ni salt on to the refractory oxide powder and mixing the composite powder with Cr and the other metal. After compacting and sintering in H 2  the compact is hot rolled, annealed and cold rolled.
Patent GB-618058-A (GB)
Title: Improvements in or relating to a method of knitting and to knitting machines
IPC: D04B9/46
Filed: 1946-04-24
Abstract: 618,058. Knitting machines. HEMPHILL CO. April 24th, 1946, No. 12388. Convention date, April 25, 1945. [Class 74(ii)] A circular, independent needle, machine adapted to knit at least three yarns in succession has means whereby each yarn is fed and drawn over the backs of the sinkers. As described, the machine comprises main and auxiliary feeders 1 and 2, ahead of which are positioned additional feeders 3 and 4 respectively. Main and auxiliary cam blocks having front and rear stitch cams are arranged to operate the needles to knit the yarn from the feeders. In operation, the needles take yarn from the feeder 4, ahead of the auxiliary feeder 2, and knit under the action of the auxiliary stitch cam 7 before taking yarn from the auxiliary feeder 2, which yarn is knit by the needles under the action of the auxiliary stitch cam 11. Similarly, at the main side the needles knit yarn from the feeder 3 under the action of the main stitch cam 15 before taking yarn from the main feeder 1 to be knitted under the action of the main stitch cam 20. Prior to the needles receiving the yarns, the sinkers are projected inwardly so that they receive the yarn over their backs at a definite height. A sinker cam ring is provided with flopper cams 29, 31 and 27, 28 at the main and auxiliary sides of the machine for projecting the sinkers inwardly and centre cams 36, 41 and cams 32, 33 for drawing the sinkers out, after the yarn has been knitted, to cause the course to be transferred from the backs to the throat of the sinkers. Reciprocatory knitting of split work may be performed by two yarns, the yarn at the auxiliary side being knitted on the backs of the sinkers and the yarn at the main side of the machine being knitted in the throats of the sinkers, and knitting of the heel and toe is completed by knitting one yarn from one of the main feeders only. During reciprocatory knitting, various cams are withdrawn and others brought into action to affect the required operations of the needles. Single feed, two feed or three feed rotary knitting may be accomplished by suitable adjustment of the knitting cams. Specifications 586,770, 592,244, 601,056, 601,163 and 613,511 are referred to.
Patent GB-287149-A (GB)
Title: Improvements in or relating to apparatus for supplying petrol and like liquids
IPC: B67D7/16
Filed: 1927-05-09
Abstract: 287,149. Hawkins Equipment Co., Ltd. March 18, 1927, [Convention date]. Fixed-chamber apparatus; varying quantity measured. - In a petrolselling apparatus of the kind comprising a telescopic overflow pipe, means are fitted for locking the pipe, and also the pump, to prevent operation during delivery of the liquid. Fig. 1 shows an apparatus comprising a graduated glass measuring-chamber 13 enclosing one or more vertical rods 17 bearing volume indicators 18. It is flled by a pipe 24 and pump 25 to an extent determined by the adjustable overflow pipe 26, which is moved by a rack and pinion 50, 51, and conducts the excess liquid back to the tail pipe 28 and supply tank. The rack having been adjusted to an extent indicated by the dials 43, 48, one of the notches 45 on a disc 143 is brought into register with a key 41, and the bolt 33 is withdrawn from the sector 32 on the pump spindle. The pump may now be operated by the handle 30, and the measuring-chamber filled to an extent determined by the upper end of the pipe 26. The desired quantity is delivered from the, measuring-chamber by a valve 90 and pipe 91, the valve 90 being operated by a control spindle 69 and a handle projecting out of the casing. This handle is controlled by a cylinder lock, and freed by a key. As the spindle 69 is rotated, it forces between the parts 38, 41 of the locking-key a, wedgeedged bar 55, which, while the delivery valve is open, keeps the part 41 in engagement with the disc 143 and bolt 33 in engagement with the sector 32 locking both the overflow pipe and the pump. The control spindle 69 also operates a sliding-member 74 which is inscribed with words &c. indicating, e.g. the operation taking place. The indicators 18 each consist of an edge plate 19, bearing a number plate 20, and soldered or otherwise secured in calibrated positions to the rod 17. With counting-apparatus.-A float 60 is fitted on a vertical rod 61 in the measuring-chamber 13, and is fitted with an ordinary counting-apparatus 62 with a trip arm 63 engaged by finger pieces 64 on a vertical spindle 65 set by the movement of the delivery-valve spindle 69.
Patent GB-712790-A (GB)
Title: Improvements in or relating to trays for use in refining towers
IPC: B01D3/32
Filed: 1952-05-16
Abstract: 712,790. Gas-liquid contact columns. GLITSCH. H. C.; and GLITSCH, F. W., [trading as GLITSCH ENGINEERING CO.]. May 16, 1952. No. 12430/52. Class 55 (2). [Also in Group XXV] A tray for a refining tower comprises a number of elongated light metal sections secured together along adjacent longitudinal edges, each section having one edge 28 offset as shown and bent downwardly to form reinforcing flanges 25 and 36, the edge of the adjacent section, which is not offset, being mounted on the portion 28 so that the upper surfaces of the sections of the tray lie flush with each other. The sections are frictionally fastened together by means of bolts 19 and washers 31. The flange 35 may be strengthened by the provision of a bar 37 welded or otherwise secured thereto. A releasable man-way plate may be formed in one of the sections. Specification 628,343 is referred to.
Patent GB-594490-A (GB)
Title: Fluid pressure-actuated electric switches
IPC: H01H35/26
Filed: 1945-05-17
Abstract: 594,490. Actuation of switches. NEW YORK AIR BRAKE CO. May 17, 1945, No. 12457. Convention date, July 27, 1944. [Class 38(v)] A snap-action switch of the micro type is actuated by a fluid-pressure - operated plunger which acts on a lever movement of which operates the switch. The position of the fulcrum of the lever can be adjusted to alter the amount of movement of the plunger required to operate the switch thus varying the sensitivity of the switch. The sensitivity can also be varied by altering the position of the switch relatively to the lever. Fig. 3 shows a micro switch 41 which is tripped by depressing a button 42. The button 42 engages a lever 33 pivoted at 34 and which is in contact with a plunger 24 the head 25 of which abuts against a diaphragm 19 which closes the end of the pressure tube 17. The plunger 24 is normally biassed in an upward direction by a spring 29 the tension of which can be adjusted by moving the threaded ring 31 which is locked in position by a screw 32. The pivot pin 34 extends eccentrically from the end of a screw 35 which when rotated raises or lowers the pivoted end of the lever 33, and by rotating the screw through two right angles the lever 33 is displaced relatively to the plunger 24 and button 42 without altering the height of the lever. A larger adjustment can be made by reversing the position of the switch 41 which is attached to the casing by screws 43. The button 42 is then brought between the pivot 34 and plunger 24 and minor adjustments can be made by turning the screw 35.
Patent GB-975268-A (GB)
Title: Electrical connectors
IPC: H01R4/24
Filed: 1961-04-07
Abstract: 975,268. Binding posts; cable and wire couplings. WESTERN ELECTRIC CO. Inc. April 7, 1961 [June 3, 1960], No. 12511/61. Heading H2E. One or more insulated conductors C may be inserted between adjacent turns of a helical spring connector 10 formed with opposed misaligned edges which rupture the insulation and contact the conductor. The spring is of trapezoidal cross-section with rounded corners. The spring 10 may be secured by tab 11, Fig. 6, to the flat 14 of a coaxially disposed support 12 to form a connector 20, which may be mounted in an insulating block (Fig. 8, not shown) as a binding post. The end 33, Fig. 11A, of spring 10 may be fixed in an insulating base member 34, while the central support 31 is free to move axially within the aperture 35 of member 34 so that pressure applied to the flanged end 36 of the support extends the spring and permits the insertion of conductors between the turns. Fig. 12A shows another embodiment wherein one end 37 of the spring is fixed in an L-shaped insulating support 38 and the other end has an extension 39 which may be pressed on to the vertical limb of the support as a lever for expanding the spring. Alternatively the spring may be fixed at one end to a support and extend parallel thereto (Fig. 13, not shown). Such a spring may have an extension at its free end for expansion purposes (Fig. 15, not shown) or may have a central expander (Fig. 14, not shown) similar to that shown in Fig. 12A. Two oppositely extending springs may be wound from a single spring wire, leaving an unwound section therebetween for securing the connector to a support member embedded in an insulating base (Fig. 16, not shown). A very long spring may be welded at each end to a coaxially disposed supporting member which is in turn welded to two support posts (Fig. 18, not shown), one at either end. Several connectors embodying the invention may be mounted on support panels and used for splicing cables (Figs. 19, 23, not shown) or for making tapping connections to cables (Figs. 20, 21, not shown).
Patent GB-1388021-A (GB)
Title: Process for preparing barium-containign dispersion
IPC: C10M141/10
Filed: 1972-03-17
Abstract: 1388021 Over-based Ba-containing dispersions; lubricants CONTINENTAL OIL CO 17 March 1972 [12 May 1971] 12610/72 Headings C4X and C5F An "over-based" Ba-containing dispersion is made by (a) mixing (i) an oil-soluble dispersing agent consisting of a carboxylic acid, a sulphonic acid in which the hydrocarbon group is of M.Wt. 300 to 1000 or a metal salt thereof (5-55 parts by wt.), (ii) a non-volatile diluent boiling at 160‹ C. or above (15-85 parts by wt.), (iii) a solvent boiling below 150‹ C., (iv) a solution of basic Ba compound, (giving a stoichiometric excess of Ba), in a C 3  or C 4  ether alcohol or a C 1-5  monohydric aliphatic alcohol (10 to 55 parts by weight of barium compounds as barium) and (v) H 2 O (0À25-3 moles per mole excess Ba); (b) carbonating the mixture at 80-100‹ C. to 50-85% of the amount needed to convert the excess Ba to BaCO 3 ; (c) heating to a higher temperature than in (b) and carbonating to 100%; (d) heating to remove volatiles. The amount of solvent (iii) in step (a) is at least 40 wt. per cent of the wt. of (i), (ii) and (iv). A temperature of 115‹ to 130‹ C. is suitably employed in step (c). In a further embodiment the solvent of step (b) is a C 1  to C 5  aliphatic monohydric alcohol, and the admixture is heated to 80‹ to 100‹ C. before the water addition of 0À25 to 3 moles is carried out. The product may be steam-stripped, which is preferably carried out concurrently with the second carbonation. The dispersion has an acetic base number of at least 140, a viscosity below 1600 cs. at 100‹ F., and is still fluid at ambient temperature. The non-volatile diluent may be a mineral or synthetic lubricating oil (many specified), a vegetable or animal oil, or a lowerboiling hydrocarbon stream, e.g. stoddart solvent or diesel fuel.
Patent GB-567329-A (GB)
Title: Improvements in and relating to electric switches and contact arrangements therefor
IPC: H01H1/50
Filed: 1943-08-05
Abstract: 567,329. Air-break switches ; contacts. ELECTRIC TRANSMISSION, Ltd., 'and GUMBRELL, E. C. Aug. 5, 1943, No. 12672. [Class 38 (v)] In a high-tension, air-break switch of the kind wherein contacts are cramped in engagement by movement over-centre of a toggle carrying one of the contacts, strain on the supporting insulators is avoided by mounting the fixed contact structure, in the form of a pair of contacts between which the movable contact is wedged, on a carriage which is anchored in a floating manner on one insulator or insulator-stack. The toggle comprises an arm 9 on a rotatable insulator and an arm 6 comprising spaced blades 25 pivoted to 9 at. 27, with an over-centre spring 33 for holding the toggle in its two positions, and a pin-andslot connection 34, 35 and adjustable grubscrews 37 for positively limiting the relative movement of the arms. 'A pair of cylinders 5 rotatable on bolts 26 between the blades 25 constitute the movable contacts proper. The carriage comprises a pair of U-shaped plates 7 spaced apart and pivoted at 2 to a bracket 3 on insulator I, the degree of movement being limited by a pin 29 on the bracket engaging slots in plates 7. A pair (or pairs) of bars 4 of similar shape, and therefore interchangeable for equalizing wear, are pivoted between the plates 7 to opposite limbs of the U, one bar having an end-pivot 14 and the other an intermediate pivot 17 and the degree of pivoting being limited by stops 20. Springs 15, 18 for the bars 4 bear on insulation on lugs 8 of the carriage so as not to carry the 'current, the connection to terminal 24 being by flexible " loop " conductor 23 reinforcing the contact pressure. In operation, the unset toggle 9, 25 moving in the plane of the carriage, enters the space 10 between the limbs, the leading contact 5 engaging the left-hand bar 4 and rotating the carriage anti-clockwise until the right-hand bar 4 meets the .trailing contact 5, whereupon the continued rotation of the arm 9 causes the toggle to move slightly over-centre and the contacts 5 to wedge between contacts 4. In this position, a claw 28 secured by bolts 26 engages pin 29 and, in opening the switch, prevents bodily movement of arm 9 until the toggle has been upset.
Patent GB-125050-A (GB)
Title: A Pump with Permeable Piston for Medical Purposes.
Inventor: LARCHE JEAN ETIENNE
IPC: A61M3/00
Filed: 1918-08-06
Abstract: 125,050. LarchÚ, J. E. April 3, 1918, [Convention date]. Pumps; air injectors.-A pump for injecting or withdrawing fluid or for injecting a gas into a cavity has a permeable piston fitted with special valve-operating means. As shown in Fig. 1, the valve 6 at the end of the barrel is open, and is closed by pushing the finger-ring 15 from the position shown to the reverse side of the stop on the barrel, the ring riding over the stop in the process, and the barrel being held meanwhile by another finger engaging the fixed ring 16. The valve 11 in the piston-rod is shown in the closed position and is opened by pulling or pushing the ring 17 away from the barrel. A fixed ring 18 is engaged by another finger during this operation. Other features mentioned in the Specification include the fitting of a filter 9 for the entering air when the piston is displaced, a second filter 19 in some cases as shown in Fig. 3, and the provision of a lateral pipe 20 which can be used to supply an antiseptic liquid to the barrel in emergency, or to permit the escape of matter from the barrel when desired.
Patent GB-876005-A (GB)
Title: Improvements in runners for umbrellas
Inventor: BROOK ERIC PERRY
IPC: A45B25/06
Filed: 1959-04-15
Abstract: 876,005. Umbrellas. BROOK & BURGESS (PLASTICS) Ltd. April 6, 1960 [April 15, 1959]. No. 12782/59. Class 134. In an umbrella, a resilient cap B, formed with slots b through which the stretchers a<SP>1</SP> extend, is applied over the end of the runner A. The cap B may be moulded from a resilient plastic material and used with a runner of polyvinyl chloride or polystyrene.
Patent GB-1299634-A (GB)
Title: A device for regulating the position of a hull block
IPC: B63B9/00
Filed: 1970-03-17
Abstract: 1299634 Welding by fusion KAWASAKI JUKOGYO KK 17 March 1970 [28 March 1969] 12783/70 Heading B3R [Also in Division B4] A device for regulating the position of a hull block 2 comprises an assembly table 1 on which a block is to be assembled, a universal joint 3 supporting the table at a central position, two hydraulic or electric motor operated actuators 4 for inclining the table, the actuators being fitted between two points on the under surface of the table which do not lie on a straight line passing through the central point of the under surface, and a level device and a signalemitter device associated therewith adapted to keep the position of a part of a hull block undergoing a welding operation always horizontal. The actuators have universal joints at each end except that the connecting part of the head of one of the actuators to the table is a pin joint.