baber/WOPTO huggingface dataset:
Patent GB-1100549-A (GB)
Title: Side-looking sonar system
IPC: G01S7/524
Filed: 1966-04-12
Abstract: 1,100,549. Sonar systems. WESTINGHOUSE ELECTRIC CORPORATION. 12 April, 1966 [16 April, 1965], No. 15925/66. Heading H4D. In a vehicle-mounted side-looking sonar system operable in both a long-range mode and a shorter-range high resolution mode, ranging is effected to port and starboard sequentially by coupling port and starboard transducers to transmitting and receiving circuitry in response to the occurrence of sequential port and starboard synchronizing signals. In the embodiment of Fig. 1 for examining underwater terrain a separate transmitting/receiving transducer having a fan-beam directivity pattern is provided for each mode. Signal generator 15 provides alternate port and starboard sync. signals which actuate circuit 30 to connect a port or a starboard transducer, 32 or 34, to transmit-receive switch 26. The leading edge of each sync. pulse is detected by unit 18 and actuates gate 75 and hence switch 26 to connect the transducer firstly to transmitter 28 and secondly, after a predetermined period, to receiver-amplifier units 51, 53, 56. The leading edge also triggers transmitter oscillator 23 which is gated to provide, in said period, an acoustic transmission pulse of a predetermined duration. Resulting echo signals, after amplification in units 51, 53, 56, are gated to a port or a starboard recorder, 11 or 12, which may be of the electrochemical chart or cathode ray storage tube type and which provides triggering signals for sync. pulse generator 15. The gain of receiver-amplifier units 51, 53 is time-varied to compensate for attenuation of the echo signal with range. The acoustic pulse transmission rate, the duration of the acoustic pulse and the receiver-amplifier gain variation are selected according to the sonar operating mode. Details of mode-switching circuitry are given (Figs. 3 and 4, neither shown). A circuit 74 blocks oscillator 23 to prevent switch damage during mode-switching.
Patent GB-1488430-A (GB)
Title: Imino phthalides
IPC: A01N43/12
Filed: 1975-12-24
Abstract: 1488430 Phenyliminophthalides MONSANTO CO 24 Dec 1975 [26 Dec 1974] 15951/77 Divided out of 1488429 Heading C2C The invention comprises compounds of the formula where X is halo and Y is CF 3  or X and Y are both methoxy, the substituent Y being meta to the imino group and plant growth regulating compositions comprising the above compounds and suitable adjuvants. The compounds of the invention are made by known methods.
Patent GB-826193-A (GB)
Title: Improvements relating to pre-set meters for textile machinery
IPC: D02H13/00
Filed: 1957-05-20
Abstract: 826,193. Measuring stop mechanisms. DE NEGRI, A. May 20, 1957, No. 15971/57. Class 120(2) [Also in Group VIII] A metering device 3 for measuring a predetermined length of yarn 2 which passes over a pulley 1 is provided with rollers formed with notches 4 so arranged that all the notches are in alignment when the desired measurement has been reached, to allow a pivoted gate 7 to enter the notches and release an arm 9 connected to a spring-urged blade 15 which rotates to sever the yarn against a fixed blade 14. When the yarn has been cut a lever 16 is moved by gravity to release a spring-urged blade 20 to stop the pulley 1 and the metering device 3. In a modification a weighted rod is released when the yarn is cut and falls to release a hook which holds a spring-urged brake lever so that the brake lever stops the pulley and the metering device.
Patent GB-837411-A (GB)
Title: Improvements in methods of welding studs or like members to plates or other bases
IPC: B23K9/20
Filed: 1955-06-03
Abstract: 837,411. Welding by pressure. LEWIS, E. M. Sept. 3, 1956 [June 3, 1955], No. 15997/55. Class 83 (4). In welding a stud or like member to a plate or other base, its bottom portion is welded to the base, and a groove is subsequently machined around the weld to eradicate any annular grooves produced during welding. In an embodiment the stud 10 has an enlarged flange 11 at its lower end and during welding two grooves 12, 13 are produced. A wide shallow groove 16 is machined in the plate 14 by an annular rotating tool which also-removes the flange 11. The bottom of the groove can be rolled by a grooved or knurled roller to improve fatigue endurance.
Patent GB-875621-A (GB)
Title: Improvements in or relating to trolleys for gas cylinders
IPC: B62B1/26
Filed: 1959-05-12
Abstract: 875,621. Hand-trucks. FULLER, J. E., and FULLER & CO. Ltd. W. G. May 10, 1960 [May 12, 1959], No. 16186/59. Class 108(1). A gas-cylinder trolley has two upwardly extending side members 1, 2 and a C-shaped member 3 or 4 secured to each side member with the curved part of each extending rearwardly, the trolley wheels 8, 9 being supported by a spacing member 7, which is carried by the two curved parts. A gas cylinder platform 10 is carried by the lower ends of the parts 1, 2, 3 and 4, and readily removable locking pins 17, 18 hold the cylinder with fixed spacing bars 15 and 16. Another spacing bar 13 forms a handle. The members 1, 2, 3 and 4 are made from flat bar metal, but in a second construction the side pieces 1, 2 and the handle 13 are made from a single bent tube. British Standards Institution Specification B.S.2718: 1956 is referred to.
Patent GB-893983-A (GB)
Title: Improvements in or relating to screw couplings
IPC: F16L15/00
Filed: 1958-05-21
Abstract: 893,983. Pipe couplings. JEFFS, J. W. May 21, 1959 [May 21, 1958], No. 16249/58. Class 99(1). [Also in Group XIV] A tubular flanged coupling member 1, Fig. 1, provided at one end with a male screw-thread 5 to receive an internally threaded tube, is formed at the other end with a socket for the reception of a spigot 4 of a complementary flanged coupling member 3, Fig. 3, the member 1 being adapted tobe rigidly locked in a desired angular position on the spigot 4 by grub-screws 8 radially inserted in the member 1. As shown, the member 3 is provided with a screw-threaded male plug 10. The members 1, 3, Fig. 6, are respectively screwed in a tube 20 and a T- bracket 21 which may form part of a fabricated structure and the ends of which abut the flanges 6, 9 on the members 1, 3. The flanges are provided with blind bores 7, 11 for engagement by a pin wrench and are maintained in abutting relationship by the grub-screws 8 which engage a tapered recess 12 formed in the spigot 4. The complementary coupling member may be in the form of a tubular bend with braised in end spigot portions or may be provided with a plurality of threaded portions for screwing into lengths of tubes, or of spigot portions for engagement by a plurality of coupling members 1. Fig. 5 shows a bracket 15 which may be fixed to a supporting structure and incorporating a tubular support 16 for a complementary coupling member. In Fig. 7, tubes 22 are rigidly secured together and pivotally mounted at the end of a tube 23 by coupling members 1, 14 and a T-bracket 25. A plug 34, Fig. 9, may be fitted in a member 1 to provide an end closure for a length of tube.
Patent GB-481710-A (GB)
Title: Improvements in or relating to optical lens systems
IPC: G02B13/00
Filed: 1937-06-11
Abstract: 481,710. Lenses. LEITZ GES., E. June 11, 1937, No. 16303. Convention date, Sept. 2, 1936. [Class 97 (i)] A rapid optical lens system, the first three members of which are respectively a collecting member, a dispersing meniscus member the air exposed surfaces of which are convex towards the object side, and a biconcave dispersing member, these three members being followed by one or two converging members, and a cemented surface being provided at least in the meniscus and biconcave members, is characterized in that the absolute effect of the cemented surface in the meniscus member on the spherical aberrations is the smallest of all the three surfaces of that member. The surface of the biconcave member on the image side has such a curvature that this surface contributes not more than numerically about 20 per cent of the refractive power of the whole system. The cemented surface in the biconcave member is collecting and concave towards the object side. Preferably in both meniscus and biconcave members the glass of the lens on the object side has a higher AbbÚ number than that on the image side. Data are given.
Patent GB-498923-A (GB)
Title: Improvements in or relating to the lubrication of ammunition
IPC: F42B14/04
Filed: 1937-06-11
Abstract: Ammunition has one or more of the following components, namely projectiles, bullets, shotgun pellets, wads, and cartridge cases formed of metal or other materials, e.g. paper, provided with a coating of a solid lubricant consisting of one or more higher alcohols containing at least 14 carbon atoms, with or without a proportion of a high melting point wax amounting to not more than 75 per cent by weight of the total lubricant.  Specified alcohols are palmityl and stearyl alcohols, and cuts having melting points between those of palmityl and stearyl alcohol or between those of stearyl and cetyl alcohol.  The waxes specified are high melting petroleum derivatives, ozocerite, ceresin, bees-wax, carnauba wax, candelilla wax, bayberry wax, Chinese insect wax and synthetic waxes obtained by chlorinating aromatic hydrocarbons, e.g. naphthalene.  The lubricant may be applied to the components in the melted condition, as a dispersion, e.g. in water, or as a solution, e.g. in aliphatic hydrocarbons derived from petroleum, e.g. benzene, aromatic hydrocarbons, e.g. benzol, toluene and xylene, or chlorinated hydrocarbons, e.g. carbon tetrachloride, chloroform, ethylene dichloride and trichlorethylene.
Patent GB-553496-A (GB)
Title: Improvements in or relating to washer-boxes for coal and other minerals
IPC: B03B5/24
Filed: 1941-11-20
Abstract: 553,496. Washing granular materials. REID, R. H. Nov. 20, 1941, No. 16414/42. Divided out of 553,470. [Class 82 (ii)] In a washer box of the kind incorporating a compartment or a battery of compartments provided or each provided with a depending partition forming a U-shaped compartment in the limb of which reciprocates a plunger, and also a rotary discharge rotor, a float rests on the body of material undergoing treatment and is operatively connected to the control switch of a variable speed electric motor driving the discharge rotor, the float having a lost motion connection with 'the switch wvhich preferably is a mercury switch. A float 7 in one limb 14 of a U-shaped compartment is connected by links 9, 10 and a counterweighted lever 11 to a mercury &c. switch 8 controlling a motor 3 which drives a discharge rotor 2 through a worm-reduction gear unit 4, chain &c. gearing 5 and worm-reduction gearing 6. Lost motion is thus provided between the float 7 and the connection with the switch so that the latter will not be operated when the float sinks into the lighter constituents in the limb 14. When the float engages the stone &c. its further upward movement operates the switch 8 effecting gradual acceleration or deceleration of the motor so that lighter materials will not be removed without removal of the stones &c. On the downward movement of the float the motor 3 is decelerated and stops before the bed of stones is discharged. Specification 553,470 is referred to.
Patent GB-400332-A (GB)
Title: Improvements in or relating to vices and like tools
IPC: B25B1/20
Filed: 1932-06-10
Abstract: 400,332. Vices ; clamps. STEVENS, H. A., 155, Belsize Road, Kilburn, London. June 10, 1932, No. 16456. [Class 61 (ii).] A vice or clamping device comprises a V- shaped horizontally disposed plate 12 on the forward limb 11 of which is mounted an engineer's vice 10 having its movable body part 23 fitted with a clamping jaw 24 coacting with a clamping jaw 30 secured to brackets 28 fixed to the other limb 13 of the plate 12 ; the jaw 24 is carried by a shank 26 held in the vice body part 23 by a set screw 27. The plate 12 is supported by battens 15, 16 and is secured to the bench 20 by means of a bolt 14 and wing nut 19 with interposed spacing collar 17 .so that circular adjustment about the bolt is permitted. Fig. 2 shows the vice body part 23 fitted with a cornered block 34 coacting with angled edges 35, 36 on the fixed brackets 28, 29 for clamping a mitre joint. The device is adapted for bending, as shown in Fig. 3, by the jaw 34 and plate 39 supported by the means of arcuate formers 37, 38 located against brackets 29.
Patent GB-438734-A (GB)
Title: Improvements in or relating to the purification of combustible gases and particularly coal distillation gases
IPC: C10K1/16
Filed: 1934-06-02
Abstract: 438,734. Gas condensing and washing processes. HOLMES & CO., Ltd., W. C., COOPER, C., and HENSHAW, D. M., Whitestone Iron Works, Huddersfield. June 2, 1934, No. 16470. Drawings to Specification. [Class 55 (ii)] In the purification of combustible gases by washing in counter-current with oil at a temperature of about 32‹ F., the quantity of the oil is sufficient to ensure a heat capacity requisite to cool the gas entering the washer to a corresponding temperature and to ensure that the temperature of the oil during more than half its travel through the washer is below its mean temperature in the washer. In an example, 16 gallons of oil per thousand cubic feet of gas or 220 gallons per ton of coal are specified. The gas is purified of its excess benzol, carbon disulphide and naphthalene contents and is also partially dehydrated. The oil is circulated as a whole through a refrigerator and a gas washer, and an independent circulation of oil is provided through a refrigerator and the part of the gas washer in which the oil first contacts with the gas. The washer preferably comprises a number of compartments in each of which the oil is circulated independently. Specifications 283,028, [Class 55 (ii)], 357,712, 366,646, and 430,989 are referred to.
Patent GB-258367-A (GB)
Title: Improvements in curtain supports
IPC: A47H5/032
Filed: 1925-06-26
Abstract: 258,367. Wallis, J. W., and Beaumont, W. June 26, 1925. Curtains, suspending.-A curtain support comprises two parallel angle bars a, b united at one end by a curved portion, a draw cord lying in the angle of the bars, a sliding member g on each bar clamped by a screw i to the cord, and a series of curtain runners k sliding on each bar with eyes k<1> to receive curtain pins h. Stops to limit the inward movement of the curtains when these slightly overlap and to form loops to retain the cord j are provided. Rollers g<2>, k<2> on the runners g, k bear on the vertical edges of the bars a, b. The bars are supported on brackets d, each with a projection d<1> to space the bars and a channelled plate e and screw f to fit over their upper edges.
Patent GB-926529-A (GB)
Title: Improvements relating to apparatus for reading and interrogating stored binary information
Inventor: TEMPEL JULIAN ANDRE
IPC: G06F7/38
Filed: 1960-10-24
Abstract: 926,529. Electric digital-data-storage apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 24, 1961 [Oct. 24, 1960; March 17, 1961], Nos. 16503/61. Divided out of 926,524 and 9851/61. Class 106 (1). In an arrangement for reading out digital data stored in parallel mode on a magnetic tape, the successive groups of digits are read and staticized, the signals read being fed also via an " or " gate to an interrogating and resetting control circuit responsive to the latest of the trailing edges of the signals to initiate interrogation and resetting of the staticized data. As shown, Fig. 2, data is stored in channels A-C of a magnetic tape T, a fourth channel D containing parity check bits. The tape is read by a multiple head H, the signals derived therefrom being amplified at a-d and fed to an " or " gate Gt, the data signals a-c being fed also to bi-stable circuits tsa-tsc which may comprise transistors. The gate Gt is connected via a differentiating circuit to a blocking oscillator BLO (Fig. 3, not shown), which is triggered in response to the trailing edge of the last pulse read from the tape to produce an output consisting of a negative rectangular pulse c followed by a positive pulse r, the pulse c being applied to enable gates Gta-Gtc thereby supplying outputs over leads ta-tc to a utilization circuit, the pulse r resetting the circuits tsa-tsb. The arrangement is substantially similar to that described in Specification 926,524.
Patent GB-553783-A (GB)
Title: Improvements in lock nuts
IPC: F16B39/12
Filed: 1942-11-23
Abstract: 553,783. Lock nuts. MULDOON, W. E. Nov. 23, 1942, No. 16516. [Class 89 (i)] A nut makes contact on one side or edge only applying a binding moment to the threaded portion to render the nut selflocking. To this end the nut may have two flanges A, B, the flange A being deeper to establish contact. The hole in the nut is located closer to the shorter flange in such manner that part threads are formed in the side of this flange. In a modification the nut has a projection on one side only and in this case part threads are formed in this projection.
Patent GB-890144-A (GB)
Title: Subsurface apparatus for automatically filling conduit strings
Inventor: MUSE JOHN FRANCIS
IPC: E21B21/10
Filed: 1959-05-15
Abstract: 890,144. Drilling wells. BAKER OIL TOOLS Inc. May 15, 1959, No. 16734/59. Class 85. Relates to apparatus, incorporated in a casing or drill pipe string, which permits the level of well fluid entering the string to be controlled as the string is run into the well. As shown, the apparatus A is incorporated in a casing pipe string B, C and consists of valve means held in the fluted interior of the tube 10 by a cement plug 14, the means comprising a valve seat 18, a flap 19 spring-urged upwardly about a pivot 20 to close the seat 18 against back pressure when a tube 29 is removed from its path, a differential area annular piston 28 secured to the tube 29 by shear pins 30, and a spring-loaded valve head 36 which seats on the bottom of the piston 28. When the casing string is being run into the well; the hydrostatic head outside the string acts on the lower annular surface area of the piston 28 and raises the piston away from the valve head 36 to allow well fluid to pass through the piston and tube 29 into the upper part B of the string. The upper annular area of the piston 28 is greater than the lower so that the well fluid above the piston moves the piston down to close on the valve 36 before its level approaches the hydrostatic head outside the casing. When fluid is pumped into the well, the pump pressure forces the valve head 36 down away from its seat. The tube 29 protects the valve 19 from attrition by well fluid and remains within the valve seat 18 until it is desired to make the valve 19 operative against back pressure, e.g. prior to the cementing of the casings B, C in the well bore. A heavy ball 60 is then dropped down the well to rest on a valve seat 61 in the tube 29. The pressure of the conditioning fluid shears the screws 30 and forces the tube 29 into the piston 28 until it fully depresses the valve head 36 and brings ports 62 into communication with the lower part C of the casing. When pumping of the cement slurry stops, the valve 19 is closed by its spring on to the seat 18 and prevents the slurry from flowing back into the casing string.
Patent GB-893564-A (GB)
Title: Improved apparatus for opening and cleaning textile fibrous material
Inventor: GREENWOOD ROBERT
IPC: D01G25/00
Filed: 1959-05-15
Abstract: 893,564. Cleaning fibres. T.M.M. (RESEARCH) Ltd. May 12, 1960 [May 15, 1959], No. 16737/59. Class 120(1) Fibres and foreign matter are aerodynamically separated by passing them in an air stream through a duct, accelerating the air stream, and diverting it about the periphery of a rotating body. Fibrous material fed by a roller 11 receives a preliminary opening by a heater cylinder 12 that may have saw-toothed clotting. The upper part of the cylinder 12 is enclosed by a substantially airtight casing 15 and below the cylinder is a duct 13 in which a rotor 14 is mounted which has a peripheral speed in excess of the average air velocity in the duct, preferably in the speed ratios of 4:1 to 6:1. Where the material-laden air stream comes under the influence of the rotor 14 its velocity is increased and direction suddenly changed, whereupon trash is ejected through an aperture 17 while fibres pass down a trunk 19 to a cage condenser 20. In other embodiments, more than one rotor may be used and rotors may have plain, corrugated, rough or saw-tooth covered surfaces. An alternative fibre feed arrangement has means discharging an airstream downwardly between roller 11 and cylinder 12.
Patent GB-1385194-A (GB)
Title: Rotary impeller-type pumps
IPC: F04D29/22
Filed: 1971-05-25
Abstract: 1385194 Centrifugal pumps WILLIAM R SELWOOD Ltd 9 May 1972 [25 May 1971] 16776/71 Heading F1C In a rotary pump of the kind in which there is an axial clearance between the impeller and a casing end wall 19 having a central inlet 21, a toroidal flow 25 being established from which the fluid passes to the outlet while fresh fluid is drawn in through the inlet, the impeller blades 15 have at least the outer end portions of their leading faces forwardly inclined at an acute angle e.g. 15 degrees to 65 degrees to the tangential direction, and the casing affords an unobstructed space 27 radially outwardly of the outer ends of the blades. The blades may be cylindrically curved with concave leading faces and radial to the impeller axis at their inner ends, or straight but non-radial, or with straight inner portions and curved outer portions having concave leading faces. Preferably, the casing diameter is 1.4 to 2.0 times the impeller diameter, and the axial clearance between the impeller and the wall 19 may be 55% to 70% of the axial dimension of the casing. The hub 14a may be omitted.
Patent GB-1105202-A (GB)
Title: Spinneret device for spinning side-by-side type conjugate fibers
IPC: D01D5/32
Filed: 1966-04-18
Abstract: 1,105,202. Spinerette. TOHO BESLON KABUSHIKI KAISHA. 18 April, 1966 [22 April, 1965; 7 Sept., 1965 (2)], No. 16795/66. Heading B5B. In a spinerette suitable for making conjugate filaments, two sorts of solution, 1 and 2, are supplied to longitudinal passages 20 and 21 respectively. Solution 1 enters annular recess 22, from which it nows through the radially extended openings 54 in the first distribution disc (Fig. 2) through the perforations 64A, 64C and 64E in the second distribution disc 60 (Fig. 4) and then into the upper annular grooves 71A, 71C and 71E in the third distribution disc 70 (Fig. 7) and passes through respective channels 73 (Fig, 6) to appear at the lower annular grooves 72A, 72C and 72E. The second solution 2 fed into longitudinal passage 21 in block 11 flows through central opening 52, the radially extended recesses 53 in the first distribution disc (Fig. 2) then the perforations 63B, 63D and 63F in the second distribution disc 60 and then the corresponding channels 73 to appear at the lower annular grooves 72B, 72D and 72F in the third distribution disc (Fig. 6). Solutions 1 and 2 fed to orifice block 12 and alternately distributed in the form of six circular curtains are extruded through the orifices 30 in the orifice plate 12 respectively arranged facing the partitions 74 (Fig. 9), whereby side-by-side conjugate filaments may be formed. The end surfaces of ribs 74 may be recessed (Fig. 9) to enhance fluid turbulence, thereby improving the conjugation of the filaments. Figs. 7 and 8 show top and bottom plan views of the third disc member of Fig. 6 indicating the arrangement of partitions and annular grooves. The relationship between the number of channels in the third disc member with that of the orifices in the orifice block is preferably determined so as to satisfy three mathematical equations given in the Specification, and especially a fourth equation. The length and diameter of channels in the third disc member and/or of holes in the second disc member may also be determined so as to satisfy an equation stated. The spinnerette is especially suitable for the wet spinning of polyacrylonitrile solutions, but may also be used in melt spinning and dry spinning processes.