baber/WOPTO huggingface dataset:
Patent GB-501497-A (GB)
Title: Improvements in or relating to the concentration of aliphatic acids
IPC: C07C51/48
Filed: 1938-07-07
Abstract: 501,497. Aliphatic acids. BRITISH CELANESE, Ltd. July 7, 1938, No. 20120. Convention date, July 13, 1937. [Class 2 (iii)] Aliphatic acids such as acetic, propionic and butyric acids, crude pyroligneous acid and the fermentation liquors from apples, grapes and other vegetable materials are concentrated by extraction with a solvent comprising isopropyl acetate and n-propyl ether, the proportions being preferably 70-90 parts isopropyl acetate and 30-10 parts n-propyl ether. The formation of peroxide from the other may be prevented by adding a small quantity of copper or a copper salt such as the sulphate or acetate, and a buffering salt such as sodium sulphate or acetate may be added to prevent hydrolysis of the ester. The buffering salt may be added as such or as alkali carbonate or bicarbonate which reacts to form such salt whether the acid contains sulphuric acid or not. The extraction may be effected in any known manner, such as by the process described in Specification 455,325 in counter-current, and the columns may contain filling-bodies or not; or a batch process may be employed, using a series of tanks. An example describes the concentration of acetic acid containing some sodium and copper sulphates.
Patent GB-250523-A (GB)
Title: Improvements in and relating to liquid meters
IPC: B67D7/16
Filed: 1925-08-11
Abstract: 250,523. Carbox, Soc. Anon. April 10, 1925, [Convention date]. Liquid meters. - Means for ensuring that a liquid meter delivers a predetermined adjustable quantity comprises an inlet valve 13, Fig. 1, opened by pressing in a spindle 14, a lug 34 on the spindle being thereby removed from locking engagement with a recess. The spindle 14 and pointer 15 are then rotated until the pointer indicates the desired quantity. Each time the distributing valve 7 of the meter moves, an arm 30, Figs. 8 and 11, is moved to actuate a double pawl escapement through a spring strip 31, thereby allowing a spring 37 to move the spindle 14 back. When the pointer 15 reaches its zero position, a spring 48 returns the spindle 14 to its locked position, and the inlet valve 13 closes.
Patent GB-1133703-A (GB)
Title: Improvements in light sources
Inventor: GATES JOHN WILLIAM CHARLES
IPC: H01S3/11
Filed: 1965-05-13
Abstract: 1,133,703. Lasers. NATIONAL RESEARCH DEVELOPMENT CORP. 13 May, 1966 [13 May, 1965], No. 20258/65. Heading H1C. In a Q-switched laser an afocal magnifying system is included in the resonant cavity. The Q-switched laser of Fig. 1 comprises a ruby rod 10 having one end coated with a reflecting coating and the other end 18 strongly concave to form the negative component of a Galilean afocal telescope system, the positive element 16 of which is incorporated in a rotating roof prism 12 forming the other reflector of the resonant cavity by the formation of a convex curvature on one of the faces thereof. In operation, the ruby rod is pumped from a single straight flash tube energized from a capacitor bank in phase with the A.C. mains supply which drives a synchronous motor on the shaft of which is mounted the rotating roof prism 12. In the arrangement of Fig. 2 (not shown), the prism (212) carrying the positive element of the magnifying system is fixed and the rotating reflector for producing Q-switching comprises a plane mirror or rectangular block (230) coupled to an electric motor and disposed between the ruby rod (210) and fixed roof prism (212). The rotating block reflector may be mounted within the cylindrical hollow rotor of an air turbine, Fig. 3 (not shown), the block receiving light from the concave end of a ruby rod at one end face which is refracted at Brewster angle at the critical instant in each revolution when total internal reflection takes place at one of the four side faces, and delivers it from the other end face to the fixed roof prism having the convex front face. Alternatively, the reflector block may be mounted in a housing which is rotated by an electric motor, Fig. 4 (not shown). The end faces of the rotating reflector block may be concave and convex respectively, Fig. 5 (not shown), and the rotating blocks may be polygonal prismatic blocks.
Patent GB-596964-A (GB)
Title: Improvements in or relating to high vacuum diffusion or condensation pumps
IPC: F04F9/00
Filed: 1945-08-08
Abstract: 596,964. Diffusion pumps. LIEBMANN, G., and CATHODEON, Ltd. Aug. 8, 1945, No. 20263. [Class 71] In a high vacuum diffusion pump of the jet type, the outer vacuum-tight casing 1 of the pump assembly is made from a metal having a low thermal conductivity not exceeding 0.07 gm. cal. per sec. per cm.<2> per degrees C. per cm. The pump comprises a lagged electricallyheated boiler chamber 4 supporting oil vapour guide tubes 15, 16 which with cowls 23, 28 form jets 24, 29. Baffles 31, 34 of relatively high thermal conductivity supported by the casing serve to condense oil vapour and prevent it from entering the vessel to be evacuated which is connected to the casing top. The casing wall is 1 mm. thick, being reduced to .05 mm. at the ends 2, 3 and on account of its low thermal conductivity avoids the necessity of a watercooled jacket as is usual in such pumps. A backing pump is connected to a conduit 9.
Patent GB-148356-A (GB)
Title: Improvements in or relating to machines for moulding concrete blocks
IPC: B28B7/00
Filed: 1920-07-09
Abstract: 148,356. Brissart, M. C. A. Dec. 13. 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Moulds.-A machine for moulding concrete blocks comprises angular members 1, 2 hinged together at 5 and adapted to be locked together by a latch member 10 on the side 1<a> of the member 1 engaging projections 9 on the side 2<a> of the member 2, the members being furnished with operating-bars 3<a>, 4<a> respectively. The latch 10 slides on pins 14, and is operated by a lever 11; opening of the mould is facilitated by a spring 15 assisted by a cam 20 acting through a bar 17. A core 7 is supported within the mould by ears engaging over flanges 6 and secured by pins 8. Holes are formed through the blocks by cores 21. The core 7 may extend to the bottom of the mould, or may be provided with a bottom member 29 and terminate short of the mould bottom; and may comprise a rigid frame, or sides 27, 28 hinged together at 32 and collapsible for withdrawal from the mould. Fig. 7 shows a mould fitted with cores 36, 37 for producing T-shaped blocks, and Fig. 9 shows a mould for L-shaped blocks. Bonding-grooves are formed in the blocks of ribs 26a. Fig. 2, on the sides of the mould. After filling and ramming, the mould is transported from the filling to the discharging portion by means of a carriage 22, Fig. 1, engaging the hinge 5 and bars 3<a>, 4<a>, and fitted with wheels 24 and an operating-handle 25.
Patent GB-652536-A (GB)
Title: Improvements relating to fluid containers furnished with valve-controlled openings
IPC: A62C13/00
Filed: 1948-07-29
Abstract: 652,536. Fire-extinguishers. PYRENE CO., Ltd., and SMYE, A. July 29, 1948, No. 20279. [Class 47 (ii)] [Also in Group XXIX] A hand-operated fire extincteur is provided with an opening controlled by a valve urged into the closed position by a spring 28 and actuated by a handle 32 which is pivoted to the container at 34 and is connected to the stem of the valve by a link 37, and in the opening movement of the valve, the handle and link pass through a dead-centre position whereafter the handle is urged by the spring 28 into the full open position in which an abutment 42 contacts the container, and a positive movement of the handle is required to close the valve. The invention is shown applied to a foam producing fire-extinguisher in which the valve stem carries two closure elements 22, 24, the former shutting off an inner vessel 4 containing an acid solution with a foam-stabilizing compound and the latter controlling the escape of foam through ports 44 and a nozzle 48. The main container 2 carries an alkaline solution which, when the valve is opened and the extincteur inverted, passes through apertures 8 to mix with the liquid from the container 4 to produce foam, the latter then passing to the outlet ports through the clearance between the valve stem and an aperture in a disc 18 through which the stem passes. A dirt-excluding rubber cap 52 for nozzle 48 is blown off by the foam as it emerges. Closure element 22 comprises a rubber disc gripped between washers 23 and closure element 24 is a compressible rubber grommet which, in the open position of the valve, prevents the escape of fluid along the stem 20.
Patent GB-261091-A (GB)
Title: Improvements in universal joints
IPC: F16D3/44
Filed: 1925-08-12
Abstract: 261,091. Potter, G., and Lansing, L. P. Aug. 12, 1925. Locking nuts.-The securing-nut 51 for one member d of a universal joint is locked by an interiorly-notched ring 53 provided with tongues 55 entering the groove 28, which receives also one of the ribs on a second member of the joint.
Patent GB-1220862-A (GB)
Title: Battery terminal connector
Inventor: SCHAEFER JOSEPH KARL
IPC: H01R11/28
Filed: 1968-04-30
Abstract: 1,220,862. Electric couplings. J. K. SCHAEFER. 30 April, 1968, No. 20379/68. Heading H2E. A battery terminal connector comprises a cast split clamp body 10, having a reinforcing element 11 therein, a threaded stud 6 fixed to the reinforcing element, a shoulder washer held in position on the stud by a pin 3, for example, welded thereon, and a terminal post 8 around the stud, with its top face flush with the washer. The reinforcing element 11 is made of a material of a higher conductivity than that of the clamp body and, in use, surrounds a terminal post 28 on a battery. A compressive screwthreaded fastener 15 which extends through aligned holes in the clamp and reinforcing element arms facilitates good electrical and mechanical connection to a battery terminal post 28. A resilient non-conducting housing 49 fits over the connector, to protect the metal parts. The bore 38 may be sealed with a plug (not shown). Alternatively, a sealing cap (also not shown) may be snapped over the annular portion 52. The clamp body 10 may be cast lead integrally with the terminal post 8. The reinforcing element 11 may be of brass or steel and may be in one piece or two, the pieces spot welded or riveted together.
Patent GB-964658-A (GB)
Title: Bending roll assembly for a steel or metal bar contiouous casting plant
IPC: B21D7/08
Filed: 1963-05-22
Abstract: 964,658. Continuous casting machines. DEMAG A.G. May 22, 1963 [June 29, 1962], No. 20501/63. Heading B3F. A guiding and bending roll assembly comprises a curved fixed frame member 2 and a curved movable frame member 5 carrying a number of bending rolls 4 and 7 respectively. The spindles of the rolls are guided in elongated holes 6. The spindles of respective pairs of rolls on each side of the bar casting are connected by links 8 such that the movement of the frame members by a power-operated device 9 effects a change in the distance between the inner and outer sets of rolls to accommodate cast bars of different sizes. A lengthwise adjustable roller connecting link is shown.
Patent GB-643874-A (GB)
Title: Improvements in or relating to a clutch
IPC: F16D13/71
Filed: 1947-07-30
Abstract: 643,874. Friction clutches. DANA CORPORATION. July 30, 1947, No. 20626. Convention date, July 12, 1940. [Class 80(ii)] A single-plate clutch applicable to tractors is actuated by a double lever arrangement comprising an over-centre bellcrank lever 35, 36 mounted upon the free end of each normal operating lever 20 and having one arm 36 engaged by an operating collar 37 and the other arm 35 co-acting through a roller 43 with a button 45 mounted in the clutch back plate 11 and loaded by a spring 51 always held in partial compression by co-action of a washer 50 on the button with a mounting cup 46. The levers 20 are pivoted on the back plate 11 and co-act with lugs 13 on the presser plate 8 through adjustable bolts 18 having lock nuts 21 serving also to position hairpin retracting springs 23 which locate between flanges 24 on the back plate so as to centralize the lugs 13 circumferentially relative to the back plate. As shown, the clutch is engaged, the collar 37 being moved fully to the left to abut the plate 11 and the arms 35 having further compressed the springs 51 and passed just beyond dead centre so that the springs tend to hold the clutch in its engaged position.
Patent GB-614340-A (GB)
Title: Improvements in electromagnetically-operated switches
IPC: H01H51/12
Filed: 1946-07-10
Abstract: 614,340. Electromagnetic switches. BENDIX AVIATION CORPORATION. July 10, 1946, No. 20652. Convention date, Aug. 29, 1945. [Class 38 (v)] A switch that can be operated by remote control comprises fixed contacts 34, 35 which can be engaged by moving contacts 40, 41 projecting from curved metal members 42 carried by insulating sectors 44 which are fixed to shafts 51 passing through openings in a plate 11 which divides the casing into two compartments. In the second compartment, each shaft 51 carries an armature 54 which can be rocked in either direction by electromagnets 56, 57, thereby moving the contacts 40, 41 into or out of engagement with the fixed contacts. Fig. 2 shows a circuit for energizing the magnets 56, 57 alternately from a battery B. Two spring contacts 72, 73 are biassed so that they normally engage a central contact 71 which can be connected through a lead 95 and switch 87 to the positive pole of the battery or to an earth connection 89 to which the negative pole of the battery and the lead 101 are also connected. The armature 54 carries an insulating member 62 which pulls the spring 72 or pushes the spring 73 out of contact with the spring 71 according to the position of the armature. In Fig. 2, when switch 87 is connected to 89, the magnet 56 is energized and the rocking of the armature disconnects 71 and 73 and allows 72 to spring into contact with 71. Both magnets are now de-energized. When the switch is returned to the position shown in Fig. 2, the magnet 57 is energized and the armature returns to the position shown. The armature is retained in both its positions when both magnets are de-energized by a spring- pressed double cam member 76. The spring 78 is sufficiently weak to allow the armature to ride up the cam slopes when either of the magnets is energized. The arrangement shown to the left of Fig. 2 is duplicated for actuating the second set of contacts shown in Fig. 1. The casing of the switch is provided with outlets 27, 28, 29, 30 to receive pin or socket connectors to which the leads a, b, &c. are connected. The connections are so arranged that either of the outlets 27, 29 may be used to connect the switch circuits to operating mechanism, the other outlet being available for testing purposes. An earthed test terminal p is provided, and terminals x, y, z are provided in the outlet 28 to enable booster current to be supplied to certain of the circuits. In the construction shown in Fig. 1, the metal members 41, 42 are connected to the metal casing of the switch by brushes 105. The fixed contacts may be connected to the primary windings of the magneto coils of an engine, the casing being connected to ground, whereby the magneto coils will be grounded when the sectors 44 are rotated to bring the fixed and moving contacts into engagement.
Patent GB-929286-A (GB)
Title: Improvements in or relating to means for attaching sign plate or other objects to posts
IPC: G09F7/18
Filed: 1959-06-16
Abstract: 929,286. Clamps. L. A. WINCH. June 16, 1960 [June 16, 1959], No. 20664/59. Class 44. Means for attaching a sign-plate or other object 16 to a post 13, comprises a clip to which the sign-plate or other object can be secured and a flexible metal band 17 for clamping the clip to the post, the slip being provided with a pair of limbs 10, 10 extending away from an inter. mediate length 11 and provided with openings 14, 14 through which the band is threaded before being wrapped around the post, whereby a length 12 of each limb remote from the intermediate length 11 of the clip is trapped between the band 17 and the post 13. As shown, nuts 15 are affixed to the clip for securing the plate 16 thereto, and the band is secured by a buckle 18. In another form, Fig. 3 (not shown), the limbs of the clip are first bent inwardly and then outwardly of the length 11. The latter may be curved to conform to a curved plate 16.
Patent GB-850857-A (GB)
Title: Textile colouration process
Inventor: BEECH WALTER FRANCIS
IPC: D06P1/642
Filed: 1958-06-27
Abstract: The process of colouring natural protein and artificial textile materials of the parent Specification (by applying a dyestuff containing at least one reactive amino group and an aqueous p suspension of a water-insoluble compound containing a mono- or di-halogenated 1 : 3 : 5-triazine ring) is modified in that the latter compound has the formula:  <FORM:0850857/IV (c)/1> wherein A represents an aryl residue containing at least one halogen atom, e.g., chlorine or bromine.  Specified residues A are chlorophenyl, chlorotolyl, dichlorophenyl, chloronaphthyl and chloromethoxyphenyl. Examples describe the dyeing of cellulose acetate, cellulose triacetate, nylon and polyester textiles with disperse dyestuffs.
Patent GB-304997-A (GB)
Title: Control gear for airship mooring tower heads
IPC: B64F1/14
Filed: 1928-07-17
Abstract: 304,997. Brown, A. Hall-, Jones, E. W., and Babcock & Wilcox, Ltd. July 17, 1928. Anchoring. - The desired sequence of operations is obtained in a mooring mast operated by a pressure medium by means of a valvechest 1 comprising a manuallyoperated cam-shaft 30 which operates in turn the inlet and exhaust valves for the various operations. When two or more different pressures are used separate inlet and exhaust compartments common to the valves distributing the same pressure are provided. An operator turns a hand-wheel 34 to rotate the cam-shaft, the cams 12<1> - - 19<1> on which actuate the valve spindles 28 through rocker-arms 32. In the example shown, for use with a mast as described in Specification 282,211, high-pressure fluid is first transmitted from compartment 7 through valve 13 to depress the locking pin from the ram, alter which low-pressure fluid is passed from compartment 8 through valve 15 to the underside of the ram piston which is thus raised. Further rotation of the cam-shaft transmits high-pressure fluid from compartment 7 in turn to the upper side of the ram through valve 14 to bring it to its final position, and to the underside of the locking-pin through valve 12 to lock the ram. Exhaust take place through valves 16 - - 19, and compartments 9, 10. There is a dead period between exhaust for each operation and inlet for the next. A dial indicator operated from the hand-wheel shaft shows the particular operation in action. A lamp indicator comprises ten lamps arranged in a circle, and operated from a rotary switch geared to the swinging arm of the mast. The lamps illuminate stencils indicating the position of the ram and two may be illuminated at a time. The locking pin operates a tumbler-switch to light ' in ' or 'out ' lamps in the indicator.
Patent GB-1435043-A (GB)
Title: Sound deadening means incorporated in a bar working machine tool
IPC: B23B13/08
Filed: 1974-05-10
Abstract: 1435043 Bar-stock feeding W ARGEREU 10 May 1974 20733/74 Heading B3B A machine having tools operating on a bar 10, e.g. a screwing machine, includes a tube 11 through which the bar is fed, a chuck for gripping and rotating the bar, a non-metallic resilient member 12 of a size slidably and frictionally to fit the inside diameter of the tube and having a central opening with walls that slidably frictionally gripping said bar to a degree greater than the frictional fit of said member in said tube so that the member moves and rotates with the bar as the bar is fed, means for feeding the bar through the tube, and a stop to engage said member 12 and allow the bar to move through said member 12 as further bar feeding occurs. The member 12 is made of polyurethane and may include graphite as a selflubricant. The control opening may be hexagonal to fit a like-shaped bar cross-section, and may have thread grooves formed on its outside to discharge chips.
Patent GB-516977-A (GB)
Title: Improvements in or relating to cultivators or tilling machines
IPC: A01B33/06
Filed: 1938-07-13
Abstract: 516,977. Land-cultivating machines. ROYSTON, M. H. July 13, 1938, No. 20769. [Class 6 (i) ] A land cultivator or tilling machine drawn by a tractor comprises a number of rotary tilling tools mounted so as to rotate behind a number of fixed tines carried by the machine frame, drive means for imparting motion to the said rotary tilling tools from a power take off shaft on a haulage tractor or a power unit carried by the machine frame, and lifting gear of the cranked axle type associated with the machine land wheels for raising and lowering the machine frame about its anchorage to the tractor with respect to said wheels. In the form shown in Fig. 1, the cultivator frame 1 is mounted on land wheels 2, and provided with known lifting- gear of the cranked axle kind similar to that described in Specification 459,297. The frame is adjustably coupled at 12 to a tractor 11. Vertically fixed tines 13 are mounted on the frame 1, e.g., adjustably on cross shafts 14. At the rear of the machine are a series of vertical or slightly inclined bearings for rotary tilling tools 17, which may be constructed, arranged, and driven as described in Specification 459,297. In the arrangement shown, the tools are driven, through change-speed gear-box 24, shaft 19 and gearing 20-23, by an engine 18 mounted on the frame 1. A manually or automatically-operated clutch may be provided for putting the tools 17 out of action ; automatic operation of the clutch may be effected by the raising or lowering of the frame 1, e.g., by connection of a clutch lever 26 to a crank on the cranked axle shaft 4. Fig. 3 shows a modified form of tilling tool having downwardly projecting tines 30 detachably mounted on a vertical rotary spindle 29. In another machine, Fig. 5, the rear tools 31 rotate on an horizontal shaft 35 mounted on a separate framework 32 pivotally and detachably connected at 33 to the main frame 1. A device 34 enables a depth adjustment of the tools 31 relatively to the tines 13 to be effected. In this construction, there is a double chain drive 36, 37 from the motor to the rotary tool shaft. The motor may, in a further modification, be mounted on an extension of the frame 32.