baber/WOPTO huggingface dataset:
Patent GB-265977-A (GB)
Title: Improvements in railway signal and track apparatus controlling gear
IPC: B61L7/02
Filed: 1927-02-09
Abstract: 265,977. Fraigneux E., (Assignees of Laviolette, .4. F.). Feb. 9, 1926, [Convention date]. Wire and like compensators for double-wire transmission for operating railway signals &c. comprises two pulleys J<1> carried by a nut E slidable along a rotatable screw B mounted between centres C. The nut is prevanted from rotafion by trunnions G working between guides H. The pulleys have bearings K engaging in the slotted branches of a bifurcated lever L embracing the supporting frame A, one end of the lever having a counterpoise weight, not shown, and the other being connected by cardan joint to a support. Each wire passes over a pair of pulleys J and under the corresponding intermediately pulley J<1>. Normally the nut E and pulleys J<1> are movable under the action of the counterpoise, but when a pull is exerted the unequal tension in the two wires tends to tilt the nut and locks it on the screw so that the pull is transmitted without lost motion. The screw may be vertical or horizontal and may have a brake, not shown.
Patent GB-1368353-A (GB)
Title: Actuation ring for variable geometry axial flow compressors
IPC: F01D17/16
Filed: 1972-01-27
Abstract: 1368353 Axial flow compressors GENERAL ELECTRIC CO 27 Jan 1972 [1 Feb 1971] 3850/72 Heading F1C An actuator ring 18 for use in the angular adjustment of the stator vanes of the axial flow compressor stage in a gas turbine engine comprises at least two sectors 34 of less than 180 degrees extent connected by bridge pieces 36 which overlie the ends of the sectors and are secured thereto by dowel bushes 48 and loose fitting bolts 40, 42. The dowel bushes are a tight fit to provide accurate location of the bridge pieces. The sectors 34 are hollow and are provided with swaged tubes 44, 50 through which the bolts 40, 42 and dowel bushes 48 extend. The stator vanes of each row of vanes are connected to a single actuator ring 18 by separate levers 16 which engage spherical journals 58 secured to the ring 18 by bolts 60, 62. The ring which surrounds the compressor casing 10 is rotated to adjust the vanes by a link 20 which is pivotally attached to a bridge piece 36. The links 20 of all the rings 18 are operated by a single lever (22) Fig.1 (not shown), which is pivoted by an actuator (26).
Patent GB-928512-A (GB)
Title: Improvements in and relating to electric switches
Inventor: SHEPHERD JAMES HARRY
IPC: H01H19/635
Filed: 1960-02-03
Abstract: 928,512. Retractive switches. N.S.F. Ltd. May 3, 1961 [Feb. 3, 1960], No. 3866/60. Class 38 (5).  In a retractive switch suitable for use in an electric power tool, the insulating operating trigger, preferably made of nylon, has a pivotpin 17 moulded integrally therewith to extend between the sides 16 of the trigger. The trigger is pivoted in slots 23 formed in the end of a support member 12 which is secured to a contact housing 10 by a strap 13. Pivotally connected to the trigger at 18 is an axially movable switch actuating member 14 having a down-turned end 15 co-operating with contact moving parts of the switch, not shown. The actuating member 14 is biased to the left by a spring 20 which is secured to the support 12 and to one limb of an L-shaped link 21 which is pivoted at 18, the other limb of the link engaging the upper surface of the actuating member. Specification 928,511 is referred to.
Patent GB-827227-A (GB)
Title: Improvements in or relating to vehicle steering mechanism
IPC: B62D13/04
Filed: 1957-02-05
Abstract: 827,227. Steering vehicles. VINTEN Ltd., W., and VINTEN, W. P. Feb. 4, 1958 [Feb. 5, 1957], No. 3894/57. Class 79(5) A steering mechanism for a vehicle such as a camera dolly has two steered wheels 13, 14 moved through transmission means by a single control member 36 which is capable of being rotated continuously to any desired extent in either direction and is connected to the transmission means in such a manner that when the wheels 13, 14 are deflected their axes intersect each other at a point which lies in or close to the axis of the non-steered wheels 11, 12. The member 36 rotates a chain 33 carried by a pair of sprocket 29, 30 mounted on a sliding bar 28 which is displaced simultaneously with the rotation of the chain by a cam 37 co-operating with a fixed follower 39 and secured to the shaft of the member 36. Unequal angular movements are thus imparted to sprockets 34 and 35 in mesh with opposite sides of the chain 33 and by further chain and sprocket drives 26, 27 to the wheels 13, 14. A single endless chain is employed in an alternative construction. The chain, the cam and the member 36 may be replaced by spur gears, an eccentric and a steering wheel, respectively.
Patent GB-766051-A (GB)
Title: Projection screen
IPC: G03B21/602
Filed: 1955-02-09
Abstract: 766,051. Projection screens, GRETENER, E. Feb. 9, 1955 [Feb. 10, 1954], No. 3916/55. Class 97(1) A screen has a specularly reflectig surface coated with embossed elements 31 each of which is larger in the vertical direction than in the horizontal, the orientation of the elements with respect to the vertical varying across the vertical sections of the screen so that the diffused reflected beam, of which 32 is the central ray, and which is produced. by reflection of an incident ray 33, is directed in the direction which is an. optimum for the auditorium. The optimum diffusion in the horizontal direction may be produced by curving the screen about. a vertical axis. The screen elements are embossed by the method described in Specification 766,052. The screen may be composed of separate horizontal strips. joined along the edges of embossed elements.
Patent GB-1433082-A (GB)
Title: Sprung suspension device
IPC: F16L3/21
Filed: 1974-01-29
Abstract: 1433082 Spring supports LISEGA ROHRLEITUNGSZUBEHOR GmbH 29 Jan 1974 [10 Feb 1973] 03965/74 Heading F2S A sprung suspension device comprises a main spring 4 located between a suspension portion 2 and a load attachment portion 3; and a transverse spring 21 pressing by means of roller 18a, 18b carried by abutment plates 20a, 20b on to cams 27a, 27b arranged on opposite faces of the suspension portion 2. The transverse spring 21 may be located between the cams 27a, 27b and rollers 18a, 18b and connected via the abutment plates 20a, 20b and swinging arms 15a, 15b to the load attachment portion 3 to form a parallelogram linkage. The device is specified particularly for use as a constant load pipe support.
Patent GB-572077-A (GB)
Title: Improvements in and relating to withdrawable electric switchgear
IPC: H02B1/00
Filed: 1944-03-03
Abstract: 572,077. Switchgear structures. BRITISH THOMSON-HOUSTON CO., Ltd. March 3, 1944, No. 3973. Convention date, March 9, 1943. [Class 38 (v)] Current-limiting fuses are used to protect auxiliary power transformers fed from a main bus-bar and draw-out type metal-clad switchgear is employed to permit interruption of the supply to the transformer primary when fuse replacements are necessary. The switchgear consists of a fixed housing and a carriage 25, which moves horizontally on rollers in channels 27. The fuses 21 are attached to the movable part 25 by means of U-shaped clips 34. The apparatus, when fully open, is earthed by contacts 36, 37, 39. The disconnect contacts consist of a fixed contact 44 and the moving arc and current carrying contacts, 41, 42 respectively. Arc chutes 47, constructed as described in Specifications 275,216, [Class 38 (v)], and 533,834, and barriers 53, 54 are fitted adjacent to these contacts. The carriage is prevented from being withdrawn until the transformer secondary circuit is open, by means of an interlocking device 55, 56, 57, which may be as described in U.S.A. Specification 2,065,859, and is held in the open position by a latch 60,52. Rapid breaking of the circuit when the lock 56 is freed is ensured by a spring plunger 50, 51 which is compressed by latch part 52 when the switch is closed.
Patent GB-666581-A (GB)
Title: Measurement or control of physical quantities
IPC: G01D5/12
Filed: 1949-02-14
Abstract: 666,581. Electric control systems. THOMAS, H. A., and NEWMAN, E. A. Feb. 14, 1950. [Feb. 14, 1949] No. 3992/49. Class 40 (i). Apparatus for measuring or controlling a variable physical quantity comprises means for determining the change in capacity produced by the relative movement of two electrodes due to variations in the physical quantity. As shown for determining changes in temperature, a short annular electrode A (Fig. 1) surrounds the end of the mercury column M of a thermometer, the electrodes being screened by a tubular shield S, a guard ring SR below electrode A, and shields Sl covering the leads P, Q, to the two electrodes A., M. The equivalent circuit is shown in Fig. 3, where C is the variable capacity between the electrodes. In a modification where direct connection to the mercury column is avoided, a second annular electrode B (Fig. 5) is located round the mercury column, shielded from the first electrode A by an earthed guard ring E. Part of the shield S and electrode A may be cut away (Fig. 4) to assist in locating the assembly relative to the end of the mercury column, a cross wire X across the gap in A acting as a setting index. The equivalent circuit is shown to be still approximately that of Fig. 3. A further modification, Fig. 8, (not shown), enables the thermometer to be used in a conducting medium. Specification 666,582, [Group. XXXVI], is referred to.
Patent GB-548148-A (GB)
Title: Improvements relating to thermionic oscillation generators
IPC: H03C3/04
Filed: 1941-03-25
Abstract: 548,148. Valve generating circuits ; frequency modulation. COSSOR, Ltd., A. C., and DAVIE, O. H. March 25, 1941, No. 3997. [Class 40 (v)] A variable frequency feed-back oscillator comprises a multi-grid valve having feed-back paths from both the anode and the screen grid to the control grid, the frequency being varied by control voltages applied to a distributer grid between the anode and the screen. As shown a triodehexode valve V2 is used, and the anode and screen-grid are coupled by a condenser C5 and are connected through a condenser C1 to the tuned circuit L, C2, which is coupled to the control grid circuit L2. The anode and screen are also connected to resistances R2, R, which may be variable, and the connexions of the condensers C1, C5 may be to tapping points on these resistarices. Modulating voltage M is applied to the second control grid of the valve to vary the frequency of the oscillator. The triode portion of the valve V2 may be arranged to generate an alternating modulating voltage; or it may be provided with a resistance R4 in its cathode lead to provide negative feed-back at modulation frequency. A greater range of frequency modulation may be obtained by heterodyning the outputs of two oscillators modulated in phase opposition, the triode portion of one of the oscillators being used to change the phase of the modulation voltage. Specification 512,325 is referred to.
Patent GB-430407-A (GB)
Title: Machinery packing
IPC: F16C33/74
Filed: 1935-02-07
Abstract: 430,407. Stuffing-box packing. HUBBARD, C. R., 213, W. Main Street, Palmyra, New York, U.S.A. Feb. 7, 1935, No. 4019. [Class 122 (v)] In a shaft &c. packing comprising a rigid member 26 housing a packing ring 23 having flange portions 28, 29 ex. panded by a spring 24, the latter is retained in position by a cylindrical lip 32 on a plate 25 engaging a recessed portior 31 of the spring. For sealing larger apertures the same sized packing ring is employed and is supported in a cylindrical extension 39, Fig. 2, of the plate 251. The extremities of the spring 24 are slit to provide resilient fingers.
Patent GB-430106-A (GB)
Title: Improvements in or relating to raising steam in boilers normally held in reserve
IPC: F22B35/00
Filed: 1934-02-07
Abstract: 430,106. Raising steam in boilers. GROSSKRAFTWERK STETTIN AKT.-GES., 1, Franzosischestrasse, NOLLE, H., 34A, Altdammerstrasse, and QUEDNAU, H., 5, Mozartstrasse, all in Stettin, Germany. Feb. 7, 1934, No. 4034. [Class 123 (ii)] The water of a reserve boiler is kept hot, e.g. about 240‹ C., at 35 atmospheres pressure, as by means of a heater inserted in the water or steam space or by the direct introduction of water or steam, and when the boiler is to be brought into active use, an auxiliary burner with or without the normal pressure is used and oil &c. may be mixed with the grate coals. A water circulating pump is preferably employed with boilers having no lower drums ; with others it may return water from the lower drum or headers into the upper drum to which steam, e.g. engine exhaust is supplied, or the pump may circulate water to the lower drums. When heated by steam from a high pressure boiler the reserve boiler may supply excess steam utilizable for driving an auxiliary machine or in keeping other reserve boilers hot. The heating steam may be superheated and the excess steam from the reserve boiler used for feed pumps or reserve feed pumps or turbines, operating at sub-normal speed. The supply of heating steam or hot water is controlled in accordance with the boiler pressure. Specification 10571/90, [Class 123], is referred to.
Patent GB-413987-A (GB)
Title: Improvements in or relating to control apparatus for hydraulic change speed mechanism
IPC: F16H45/00
Filed: 1934-02-07
Abstract: 413,987. Hydraulic transmission of power. KREISSLE, H., 63, Oberhauserstrasse, Ansbach, Mittelfranken, Bavaria, Germany. Feb. 7, 1934, No. 4053. Convention date, Dec. 22, 1933. [Class 69 (ii).] In hydraulic change-speed mechanism comprising a hydraulic torque transformer and a hydraulic coupling, the action is controlled by apparatus influenced by the torque on the driving shaft and by the speed of the driven shaft. The change-speed mechanism comprises a torque transformer 4 and a coupling 5, the transformer having a guide wheel 9 capable of being moved axially to bring a non-bladed portion 11 into the circuit, so that the transformer then functions as a coupling ; drive is effected either solely through the transformer, blades 10 being in circuit, or partly through the transformer acting as a coupling and partly through the coupling 5. A servomotor 59 controls the position of the guide wheel 9, and a servomotor 61 controls a friction clutch 13 between the coupling 5 and the driven shaft 3. A lever 29 which controls the fuel supply to the driving engine can be fixed in relation to a quadrant 32 by a pawl 31 and has a limitedlost-motion connection with a cam disc 33, the position of which indicates the torque on the driving shaft. A valve 52 is connected to a floating lever 46 acted on by the cam disc 33 and by a governor 18 actuated from the driven shaft 3. A governor 19 actuated in accordance with the difference in speed between the driving and driven shafts is connected to the quadrant 32 and to the piston 56 of a servomotor 45. When the valve 52 is in the position shown servomotors 39, 45, 59 and 61 are connected to the exhaust pipe 44, and drive is effected through the transformer 4 only. When the driven shaft accelerates, the governor 18 raises the valve 52 to permit pressure medium from 43 to pass to the servomotor 39 and throw over a valve 42 ; pressure medium then passes to servomotors 59, 61, and drive is effected partly through the transformer 4 acting as a coupling and partly through the coupling 5. The speed at which the change takes place is determined by the position of the cam disc 33 ; simultaneously with the change, the servomotor 45 acts to move the quadrant 32 to increase the fuel supply, the supply being subsequently reduced by the governor 19 as the difference in speed between the driving and driven shafts diminishes. Manual operation may be effected by valves 64, 65, 66, and the speed of the governor 19 is limited by centrifugal weights 26 adapted to disengage a friction clutch 27.
Patent GB-907748-A (GB)
Title: Improvements in or relating to hatch covers, cargo anti-shifting boards and the like
Inventor: MAY ERNEST CYRIL
IPC: B63B19/19
Filed: 1959-02-05
Abstract: 907,748. Hatch covers. M. E. P. CO. Ltd. May 2, 1960 [Feb. 5, 1959], No. 4053/59. Class 113. An articulating means between adjacent hatch cover sections comprises an U-shaped link 12 which passes through apertures in the sides of adjacent sections and which is secured within each section by a keepblock 13. The keep block is held in position behind a stiffening rib 15 by bolting or riveting. The cover sections are made from an aluminium alloy. Specifications 692,272 and 742,392 are referred to. Reference has been directed by the Comptroller to Specification 669,618.
Patent GB-579116-A (GB)
Title: Improvements in and relating to a method for saccharifying cellulosic materials by means of diluted mineral acids
IPC: C13K1/02
Filed: 1942-03-27
Abstract: A process for the manufacture of sugar from cellulosic material by successive hydrolyses with dilute solutions of mineral acids is characterized in that between successive hydrolyses the solid material is exhaustively freed from the sugar produced during the earlier hydrolysis by systematic diffusion in a battery separate from the hydrolysing chamber, preferably using the same strength aqueous acid solution as will be used for the following hydrolysis.  In an example wood chips are allowed to soak in dilute acid solution, preferably 6-2 grams/litre HCl or 10-3 grams/litre H2 SO4, for 30 minutes at 90 DEG C. and after draining are cooked without further addition of acid for 45 minutes at 165 DEG C.  The chips are then countercurrently extracted in a diffusion battery with acid which is more dilute than that used in the initial cooking process.  The process is then repeated three times at increasing cooking temperatures up to 200 DEG C. but with decreasing acidites and in cooking vessels of decreasing size, the final extract being with water instead of acid.  The resulting lignin may be utilised for the preparation of high grade charcoal.  The sugar solution resulting from the first hydrolysis being rich in pentoses may be separately treated to yield furtural.  In a modification the diffusion is carried out and acid is added to the extracted material before re-cooking. The sugar solutions may be processed to obtain the sugars or fermented to produce alcohol according to the method of Specification 393,082.
Patent GB-1005736-A (GB)
Title: Novel sulphanilamido pyrimidines and a process for the manufacture thereof
IPC: C07D239/69
Filed: 1964-01-31
Abstract: The invention comprises 4-(N1-acyl-sulphanilamido) -5,6-dimethoxy-pyrimidines and the preparation thereof by reacting a compound of the formula <FORM:1005736/C2/1> wherein R represents a nitro, arylazo, acylamino, alkoxycarbonylamino or aralkoxycarbonylamino group or a group of the formula -N = CH-R1 in which R1 represents an unsubstitute or alkyl or alkoxy substituted phenyl group, with an acylating agent to form an N1-acylated compound of the formula <FORM:1005736/C2/2> where Ac represents an acyl residue, and converting the R group into an amino group by reduction or hydrolysis as the case may require.  Therapeutic compositions with high antibacterial action, e.g. in the form of tablets, dragees, capsules, suppositories, solutions, emulsions or suspensions for oral, topical or parenteral administration, comprise a 4-(N1-acyl-sulphonilamido) - 5,6 - dimethoxy - pyrimidine in admixture with a compatible pharmaceutical carrier.  Specification 1,005,737 is referred to.
Patent GB-1178724-A (GB)
Title: Novel Quaternary Compounds
Inventor: HALPERN ALFRED
IPC: C07D213/20
Filed: 1967-01-27
Abstract: 1,178,724. Quaternary ammonium salt. MUNDIPHARMA A.G. 27 Jan., 1967 [15 March, 1966], No. 4139/67. Heading C2C. Novel quaternary salts of formula wherein X- represents a salicylate, acetylsalicylate, para-aminosalicylate or undecylenate ion, R 1  represents a saturated or unsaturated aliphatic hydrocarbon radical having 8 to 20 carbon atoms, R 2  and R 3 , which may be the same or different, represent saturated or unsaturated aliphatic hydrocarbon radicals, having 1 to 4 carbon atoms, and R 4  represents a saturated or unsaturated aliphatic hydrocarbon radical having 1 to 4 carbon atoms, a cycloaliphatic radical with 3 to 6 carbon atoms, or a benzyl, thienyl, furfuryl, pyridyl or piperidyl radical, or R 2 , R 3  and R 4 , together with the nitrogen atom, can represent a saturated or unsaturated heterocyclic ring having 2 to 5 carbon atoms are prepared by double decomposition with other quaternary salts such as the halides. Pharmaceutical compositions in conventional forms for topical, oral, rectal, buccal or sublingual administration and having antiseptic, antifungal, local anaesthetic and anti-inflammatory activites comprise an above novel salt and a carrier or diluent therefor.
Patent GB-1398673-A (GB)
Title: Liquid meter of the turbine type
IPC: G01F1/06
Filed: 1973-01-26
Abstract: 1398673 Rotary fluid-flow meters INGENIORFIRMAET CONSTANTIN BRUN AS 26 Jan 1973 [3 Feb 1972] 4185/73 Heading F1F A liquid meter comprises a capsule 18 that can be lodged in a housing 1 with an inlet opening 29 in register with either of inlet and outlet connections 2, 3 according to the flow direction, an outlet opening 36 then being in register with the other of said connections. Rotation of the capsule relative to the housing is prevented by a flat surface 31' circumjacent the opening 29 abutting a collar 17 of a filter 15 placed in the inlet connection 2, or 3, with the collar contiguous to and on the radially inner side of a cylindrical surface 9 of the housing. A turbine wheel 19 on a rotary shaft 20 has two rings of blades 21, 22 in series with each other, a ring of guide blades, Fig. 6 (not shown), being located in a transfer duct 24. To minimize measuring errors the flow through an opening 40 to a hole 41 by way of a duct 38 is adjustable with the aid of a throttling screw 42. A counting train (not shown) when mounted on the rim 50 of a lid 6 is coupled to the shaft 20 through gears 44, 47 and a magnet 48 co-operating with a magnet comprised in the train. (For Figures see next page)
Patent GB-378794-A (GB)
Title: Improvements in and relating to platen presses
IPC: B41F1/28
Filed: 1932-02-12
Abstract: 378,794. Printing-machines. SCHNELLPRESSENFABRIK AKT.-GES. HEIDELBERG, Heidelberg, Germany. Feb. 12, 1932, No. 4207. Convention date, Jan. 15. [Class 100 (ii).] Platen machines of the kind described in Specification 23358/13, [Class 100 (ii), Printing processes &c.], in which the sheets are automatically fed and delivered by means of gripper arms 5, 5<1> which rock in the plane of the platen, are constructed with printing beds 11 which are inclined to the vertical, so as to prevent the collapsing of thin sheets due to their being fed into a final vertical printing position.
Patent GB-472151-A (GB)
Title: Improvements in flexible shaft coupling
IPC: F16D3/04
Filed: 1937-02-12
Abstract: 472,151. Universal joints. AGREN, E. M. Feb. 12, 1937, No. 4239. Convention date, Feb. 12, 1936. [Class 80 (ii)] One or more U-shaped steel bars 6 is or are hinged substantially diametrically to one shaft-member 1, and is or are stressed torsionally by the driving torque, acting through legs 5, projecting axially from each bar into engagement with rounded openings 12 in the other shaft-member 2, such engagement permitting relative axial, radial and circumferential movement of the legs in the openings. When two bars are used, they may be at right-angles, or parallel, side-by-side. The openings 12 may, as shown, be open-ended grooves in axially projecting lugs, in which case the shaft members may be separated by relative radial movement only. The bar 6 is pivotally retained on the member 1 by means of flushfitting, bolted plates 8. The Specification as open to inspection under Sect. 91 states also that the bar 6 may be formed as a closed rectangle, or be replaced by a rectangular plate. This subject-matter does not appear in the Specification as accepted.