baber/WOPTO huggingface dataset:
Patent GB-1199508-A (GB)
Title: Emollients comprising Novel Diester derived from Sterically Hindered Carboxylic Acids, and their preparation
Inventor: COOPERSMITH MYRON
IPC: B01J31/00
Filed: 1968-04-11
Abstract: 1,199,508. Diesters of sterically hindered carboxylic acids. ESSO RESEARCH & ENG. CO. 11 April, 1968 [1 May, 1967], No. 17425/68. Heading C2C. The invention comprises diesters of the Formula I or II where (R 1 -CO-O-) is a sterically hindered carboxyl group (as defined below) having from 4 to 65 carbon atoms, and X is a divalent radical of the formula where n is 0 to 8 and R 6 , R 7 , R 8  and R 9  are each a hydrogen atom or a C 1-6  alkyl or phenyl radical. By sterically hindered carboxyl radical is meant that branching occurs on the alpha-, beta- or gamma-carbon atoms of the acid. The compounds of Formulµ I and II are prepared by a general process which comprises contacting a glycol monoester of a sterically hindered acid (as defined above) with an esterification catalyst under esterification reaction conditions for a period of time sufficient to convert a portion of the glycol monoester to the diester. The compounds of Formulµ I and II are suitable as emollients for cosmetic purposes.
Patent GB-839942-A (GB)
Title: Improvements in or relating to roof supports adjacent to the working faces of mines of coal and other stratified minerals
IPC: E21D17/04
Filed: 1958-06-03
Abstract: 839,942. Mine roof supports. SWALLOW, F. C. Feb. 13, 1959 [June 3, 1958], No. 17613/58. Class 20(2) A mine roof support, for use adjacent to the working face, is of square or rhombus form latticework, in which each member is a girder of twice the length of unit lattice-spacing. One form of girder described is of hollow rectangular form, Fig. 1, and carries means B at its mid-point to engage adjacent girders of the same type. Holes C are provided for the insertion of wedges F, which lock the leading girders of the network to those previously set, Fig. 5, enabling them to act as cantilevers, props being placed under all crossing points. An alternative form of girder (Figs. 2, 4, not shown) is of I-section, with corresponding engagement means. The arrangement allows the rearmost row of girders to be remotely dismantled and recovered by the use of ropes or cables. The network may be set up either as in Fig. 5 or with the girders along and perpendicular to the line of advance.
Patent GB-388274-A (GB)
Title: Improvements in or relating to cooling liquid circulating systems for internal combustion engines
IPC: F01P11/20
Filed: 1932-06-22
Abstract: 388,274. Cooling cylinders. SULZER FRERES SOC. ANON., Winterthur, Switzerland. June 22, 1932, No. 17632. Convention date, Sept. 8, 1931. [Class 7 (ii).] In a water-cooling system in which the radiator 12 is placed above a low-level tank 14 and communicates therewith by a throttling device, such as a pipe 13, the arrangement is such that when circulation ceases, the radiator is drained into the tank 14 whereas the level of water in the cylinder jackets is maintained. A pump 16, which may be electrically driven, forces the water from the tank 14 through a pipe 18 to the cylinder jackets 3 and thence by a manifold 7 to a tank 8 provided with an overflow weir 9, the pipe 18 being returned at the same height as the weir so that when the pump stops working no back flow of water from the tank 8 will take place. The water overflowing the weir 9 flows through a pipe 11 and the radiator 12, which has shutters 26 and is cooled by the air draught of a fan 24 in a passage 25 ; the system is vented through pipes 20, 21 and a valve 22 in a filler cap 23, and a level gauge 27 is provided ; drain cooks 36, 37 may be operated together. In a modification, Fig. 2, a spring-pressed piston 33 is operated by pressure in the manifold 7 ; when the pump is working, the position is as shown and a valve 28 makes direct connection between the manifold 7 and the discharge pipe 11 ; when the pump stops, the lever 30 operating the valve moves to the dotted position, the manifold 7 is closed and the pipes 20, 21 are both vented to the atmosphere, so that drainage into the tank 14 can take place. If the pump 16 is replaced by a reciprocating pump a large clearance is provided over the piston 33 to damp out oscillations. The delivery from the pump to the jacket may be direct if non- return means are provided.
Patent GB-350237-A (GB)
Title: Tread devices for the wheels of tractors, lorries and the like
IPC: B60B15/02
Filed: 1930-06-06
Abstract: 350,237. Tyre treads. HURLIMANN, H., Wil St. Gallen, Switzerland. June 6, 1930, No. 17640. [Class 144 (i).] Tread shoes for tractor and like wheels comprise alternating rubber, &c., blocks 2 and metal plates 11 formed with shoulders 13 engaging the edges of the blocks 2 and with projecting strakes 15. The rubber blocks are reinforced by metal inserts apertured for the attachment-bolts, and are further clamped to the wheel by arms formed on the plates 11.
Patent GB-319628-A (GB)
Title: Improvements in multi-tubular condensers and evaporators for refrigerating machinery
IPC: F25B39/00
Filed: 1928-06-19
Abstract: 319,628. Liverpool Refrigeration Co., Ltd., and Allan, J. June 19, 1928. Stuffing-box, cup-leather, and butt joints. - The casings C, C<1> of a refrigeratin-machine condenser are secured in the bosses b<3> of the tube-plates by welding at b<4>. In a modification, in which the tube-plates can be removed from the casings with the tubes in situ, the joints between the tube-plate B<5> and the casings are maintained gastight by metallic packing c<14> held in place by glands c<15>, while Victaulic rings g<8> maintain liquid-tight joints between the glands and the cooling water headers G. In another arrangement, the casings are secured to the tube-plates by rings c<9> welded to the casings and nuts b<13>.
Patent GB-253729-A (GB)
Title: Improvements in and relating to artificial limbs
IPC: A61F2/80
Filed: 1925-07-10
Abstract: 253,729. Underwood, E. W. July 10, 1925. Limbs, artificial.-The sockets of artificial limbs are provided with annular grooves c which may be connected by passages d, as shown in Fig. 1. The annular grooves may, as shown in Fig. 4, be used in combination with helical grooves p, as described in Specification 249,269. The socket is closed at the bottom and provided with a manually-operated valve l.
Patent GB-912185-A (GB)
Title: Improvements in helicopter training devices
IPC: G09B9/46
Filed: 1960-05-19
Abstract: 912,185. Fluid-pressure brakes. BOLKOW, L., [trading as BOLKOW-ENTWICHLUNGEN KOMM.-GES.]. May 19, 1960 [May 29, 1959], No. 17689/60. Class 103 (1). [Also in Group XXXIII] A brake limiting the movement of a helicopter pilot-training device is operated by an abutment 50 on the device which, in certain conditions, rotates a lever 51 clockwise to act through spring 53 on the piston 55 of a master cylinder 54 connected through pipe 58, rotary pipe joint 59, and pipe 60 to a cylinder 61, the piston 62 of which acts on a lever 28 having a brake pad 27, co-operating with a movable part of the device (not shown). A reservoir 57 is connected to cylinder 54 through pipe 56, and a valve 64 can be opened to by-pass cylinder 54 and render the brake inoperative. Lever 28 can also be operated by a lockable hand lever through a cable 32.
Patent GB-736215-A (GB)
Title: Improvements in or relating to methods for preventing the corrosion of cooling radiators using a water circulation
Inventor: CHAUSSON GASTON
IPC: C23F11/18
Filed: 1951-07-25
Abstract: 736,215. Preventing corrosion. SOC. ANON. DES USINES CHAUSSON. July 25, 1951, No. 17692/51. Drawings to Specification. Class 123 (1). A method of preventing the corrosion of cooling radiators, using water comprises placing in the water a corrosion inhibition product in the form of a solid or pulverulent compound of relatively low solubility, the amount being sufficient to saturate a multiple of the quantity of water in the system. The inhibitor compound may be in the form of a glass, either block or powdered, by combining, e.g. by sintering, a soda component (inhibitor) with a silicon component. The term "soda" includes the carbonate, bicarbonate, or hydroxide of sodium. The glass may support a more soluble inhibitor salt, e.g., a chromate, silicate or phosphate, e.g. zinc, lead, strontium, calcium or sodium chromate. Alternatively the inhibitor compound may be a soluble salt sintered with a low solubility salt which is not a corrosion inhibitor. In any case the inhibitor compound may be placed in a compartment communicating with the water system, or in a pervious strainer or bag, or it may be in the form of a plug which screws into a radiator header. Low solubility salts which are mentioned as corrosion inhibitors are strontium fluoride, borate, chromate, molybdate, and tungstate, barium silicate and fluoride, calcium borate and tungstate, sodium fluosilicate, and magnesium phosphate.
Patent GB-1495829-A (GB)
Title: High pressure extrusion press
IPC: F16J15/32
Filed: 1975-04-29
Abstract: 1495829 Seals ASEA AB 29 April 1975 [30 April 1974] 17696/75 Heading F2B [Also in Division B3] A seal assembly in a hydrostatic extrusion press comprises an inner ring 12 of, e.g. bronze, in sealing contact with the piston 3, of, e.g. steel; an outer ring 9 which is in contact with the press cylinder wall 5; an annular gap 9 between the rings 9, 12 connected to the pressure filled space 1; and one or more depressions 20 in the bore 13 of the inner ring 12 which also communicate with the pressure filled space to provide lubrication. The depressions 20 may be in the form of one or more circumferential slots 20, Fig. 4 (not shown), connected to the pressure filled space 1 by radial conduits 15 as in Fig. 2 or by axial channels 30, Fig. 4 (not shown). The depression may alternatively be in the form of a series of arcuate slots 31, Fig. 5 (not shown).
Patent GB-405873-A (GB)
Title: Improvements relating to light reflectors
IPC: G08B5/00
Filed: 1933-06-22
Abstract: 405,873. Reflectors. MITCHELL, F. G., 15, Elmfield Road, Chingford, and BRANDON, J., 82, Scawfell Street, both in London. June 22, 1933, Nos. 17808 and 21626. [Class 97 (i).] A rear reflector for a bicycle &c. comprises a large number of small pieces of iridescent or scintillating material mounted upon a backing or supporting member. In the form shown the reflector is mounted on a celluloid &c. flap 1 provided with clips 4, 5, whereby it can be attached to a mudguard to form an extension thereof, the clips being so positioned that one will be above and the other below the usual stays carried by the guard. The reflector is mounted as a medallion 9 on the flap 1 and comprises a large number of pieces of silvered glass &c. adhered to a cardboard &c. disc 10 which is secured to the flap by adhesive. The reflector is covered by a disc 13 of celluloid &c. which may be coloured red. The medallion may be surrounded by a sign 14 such as a triangle of coloured celluloid. The scintillating material may be mounted in a recess in the flap 1 and this recess may be spherically curved, the cover 13 then being of convex spherical form in order to produce a lens effect.
Patent GB-1221395-A (GB)
Title: Method of making low noise film resistors
IPC: H01C17/245
Filed: 1969-04-08
Abstract: 1,221,395. Resistors. CORNING GLASS WORKS. 8 April, 1969 [18 April, 1968], No. 17860/69. Heading HIS. When a thin-film 16 of desired resistance value has been achieved by removing a portion of film (e.g. by blasting with alumina oxide powder) to increase its length-to-width ratio between terminals 14, the edges of the film are rubbed with a soft resilient member 18 in order to reduce the " resistor current noise." The member 18 may be of natural or synthetic rubber, plastics, felt &c. It may contain abrasive particles and may be rotated by a motor 20 or rubbed along the edges of the film. The film may be tin oxide, tin oxide-antimony oxide or other modified oxide on a glass, alumina or other ceramic substrate.
Patent GB-201724-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H3/60
Filed: 1922-06-29
Abstract: 201,724. Crabtree, J. A. June 29, 1922. Switches, quick make-and-break.-In order to absorb the impact of the operating lever and contact member of a quick make and quick break switch in both the extreme positions, fixed resilient stops are provided with which the movable parts engage. As shown in Figs. 2, 3 and 4, applied to a tumbler switch as described in Specification 140,179, a plate-spring washer a is secured between the bridge b and the insulating base, the switch action passing through an opening in the plate which is furnished with upturned tongues f for the two sides of the U-shaped contact member g. Instead of employing a spring washer, plates with multiple tongues or single tongues may be separately secured to the bridge, or the tongues may be integral with the bridge.
Patent GB-759563-A (GB)
Title: Production of turbine or compressor blades
IPC: B21H7/16
Filed: 1954-06-17
Abstract: 759,563. Making turbine blades. WURTTEMBERGISCHE METALLWARENFABRIK. June 17, 1954 [June 19, 1953], No. 17871/54. Classes 83 (2) and 83 (4). Rolling, forging.-In a method of making turbine or compressor blades a blank is first rolled to the required cross-section and taper and is then hot- or cold-stamped to produce the final form including twist of the blade body. A bar section 3, Fig. 5, of aerodynamic crosssection having an enlarged blade root 2 formed thereon in an electric upsetting machine is rolled to the required taper in segmental rolls 4, 5 which are recessed to accommodate the root end 2. The blade may alternatively be transversely rolled between rolls 6, 7, Fig. 6, or both methods of rolling may be used in turn. The blade is finally hot- or cold-stamped between dies 8, 9, Fig. 7, to produce the twist and final form of the blade.
Patent GB-556264-A (GB)
Title: Improvements in and relating to artificial horizons or gyro-verticals
IPC: G01C19/44
Filed: 1940-12-19
Abstract: 556,264. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. Dec. 19, 1940, No. 17887. Convention date, Dec. 20, 1939. [Class 97 (iii)] A gyro-vertical or gyro-horizontal is safeguarded from injury, say during aerobatics by braking the rotor by means operated by shutting off the source of power and preferably the gyro is rendered pendulous when stopped to retain it in a more or less vertical position so that it is quickly erected when re-started. As shown the rotor is driven by jets of air obtained by evacuating the casing through a valve 4 and pipe 5 and a brake 26 is carried by a bellows 31 and is vertically slidable by means of rods 28. The bellows 31 carried by a cap 30 is biased so that when there is no differential pressure applied to it, as in the case of stopping the suction of air by closing the valve 4, the brake is forced down on to the rotor 13 to stop it. The bellows is preferably connected by a capillary tube 32 to a channel 12 within the casing at which point the air is at substantially atmospheric pressure so that when the air supply to the driving jets is resumed by evacuating the casing the pressure within the latter falls and the brake is raised by the expansion of the bellows. The gyro is mounted in neutral equilibrium when running but by lowering the brake to stop the rotor the centre of gravity is lowered and the gyro is pendulous. Specification 538,574 is referred to.
Patent GB-1044600-A (GB)
Title: Apparatus for removing moisture from fibrous material
IPC: F26B17/02
Filed: 1965-04-28
Abstract: 1,044,600. Drying webs. H. HIKOSAKA. April 28, 1965 [May 6, 1964], No. 17912/65. Heading F4G. Material to be dried, e.g. loose wool or fibres A, is conveyed by air-permeable endless belts 14, 19 between rubber-coated press-rolls 1 ... 4, each of which has an end wall (not shown) at each end to form an air-tight chamber 6 enclosed by the rollers and boards to which chamber is fed compressed air. In operation the compressed air passes to atmosphere through the portion of material held between the rollers and carries off the moisture from the material. In further embodiments Figs. 6 and 7, press rollers of different sizes may be utilized. The rollers are driven by intermeshing gearing at the same peripheral speeds in opposing directions.
Patent GB-237252-A (GB)
Title: Improvements in worm gear
IPC: F16H55/10
Filed: 1925-07-13
Abstract: 237,252. Siegwart, H. July 17, 1924, [Convention date]. Variable-speed toothed gearing.-Worm-wheel teeth are movable towards the wheel axis and are pressed outwards by spring action; worms for engagement therewith may vary in height from end to end. Application to motor vehicles, elevators, cranes, machine tools, tramways, textile and printing machinery, and power transmission generally is referred to. In the variable-speed gear shown in Figs. 1, 2 and 5, the worm-wheel 10 carries roller teeth 13 turning on pins 14 pressed radially outwards by a central spring 20, or by individual springs, and engages alternatively with worms 7, 8, 9 slidable on the driving-shaft 1 with a loose sleeve 3 pivoted to a lever 4 on a slidable and rotatable control shaft 5. A lug 24 on the sleeve 3 co-operates with a slotted change-speed gate. A pin 21 projects from each worm tooth through a slot in the wheel into the path of a bar 23 secured to the shaft 5. so that as the shaft 5 is rotated to release the lug 24, the bar 23 forces in the wormwheel teeth adjacent to the worm and allows sliding of the worms to change the gear. Multithread worms may be employed. In a modification, the form ends are gradually tapered or reduced so as to merge into the body of the worm shaft, and when the gear is to be changed the worm is so rotated that the worm end is adjacent to the worm-wheel. In further modifications, the worm shaft is swung about axes in or parallel to the plane of the worm-wheel to disengage the gearing-parts before the sliding movement of the worms takes place. Fig. 16 shows a form in which the worm-wheel 84 is shifted along its shaft 85 during gear change by a lever 86 on the slidable and rotatable operating- shaft 89, which carries a lever 90 connected to a ring 91 carrying lugs 92 engaging a gate. In the modification shown in Fig. 17, any one of a series 93 .. 98 of loose worms formed with clutch ends 102 may be brought by rotation around a centre 99 into register with a wormwheel 106 and the clutching end 103 of a driving- shaft 104. As shown in Fig. 8, the worm-wheel may be formed in two loose parts 30, 31 provided with inclined teeth and inter-connected by ballended levers 34 passing through a plate 35 secured to the shaft 32; the teeth are thus adapted to set themselves to the inclination of the worm. Fig. 21, shows a construction adapted to produce a reduction ratio twice as great as the number of teeth in the worm-wheel. A series of spaced worms 124 .. 127 of half the pitch of the worm-wheel teeth are so formed that in one complete convolution each worm merges from the shaft, rises to a maximum height and falls again to the shaft level. The starts of the successive worms are spaced 180‹. During the drive, the worm-wheel teeth are pressed in succession into the body of the wheel by engagement with the tops of the worms. In a modified form the teeth of the worm-wheel are staggered.
Patent GB-627007-A (GB)
Title: Improvements in electro-magnetic clutches
IPC: H02P29/00
Filed: 1945-07-13
Abstract: 627,007. Electromagnetic clutches. GRATZMULLER, J. L. July 13, 1945, No. 18012. Convention date, Aug. 31, 1943. [Class 35] In a slip coupling one member carries a D.C. energized winding and the other a wound armature in which A.C. is induced and connected to an external circuit including an automatically adjustable device for absorbing the A.C. As shown, the A.C. from armature 9 is absorbed by the governor controlled resistances 13a-13d and the D.C. fed to the coils 4 on the other member may also be governor controlled. The armature 9 may also carry a short-circuited winding.
Patent GB-986372-A (GB)
Title: Improvements relating to servo mechanisms
Inventor: ARROWSMITH JOHN RICHARD
IPC: G05D3/18
Filed: 1960-05-21
Abstract: 986,372. Electric positional control. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 18, 1961 [May 21, 1960], No. 18016/60. Heading G1N. In a servo mechanism, velocity damping and acceleration damping are alternatively applied to the error signal, according to the value of the latter. As shown, an error signal comprising an amplitude modulated A.C. is supplied via a transformer 3 to a 2-stage high-gain amplifier, the stages containing valves 4 and 5 respectively, and the output of the second stage being fed to the midpoint of the secondary winding of a transformer 5a the primary of which is supplied with a reference signal of the same frequency as the error signal. The output of the said secondary winding is applied via a phase sense rectifier comprising diodes 6.... 9 and storage capacitors 14.... 19, and via amplifier circuits comprising valves 22, 23 and 34, 35 respectively, to the field windings 1, 2, of a servomotor. The output of a tachometer generator mounted on the shaft of the servomotor is supplied to terminals 27 and, when a switch 33 is in the condition shown, is differentiated by a circuit comprising a capacitor 29 and resistors 30, 31 and supplied to the control grids of valves 22, 23 to provide an acceleration damping component to the motor control signal. When the switch 33 is in its alternative condition, the capacitor 29 is by-passed and the feedback signal provides velocity damping. Switch 33 is controlled by a relay coil 48 in the anode circuit of a valve 47 whose cathode is positively biased and whose control grid is subjected to the potential across a resistor 41, which potential is the difference between the output of a negative peak rectifying circuit comprising a diode 38 and a capacitor 39 and fed with the output of valve 4, and the output of a positive peak rectifying circuit comprising a diode 43 and a capacitor 44 and fed with a fraction of the output of valve 5. When a large error signal saturates both valves 4 and 5, the grid of 47 is negative and the valve does not conduct; switch 33 is as shown; the servomotor is not effectively damped and runs at maximum velocity. When the error signal diminishes so that valve 4 is no longer saturated, the grid of 47 becomes positive and 47 conducts, energizing relay coil 48 and thus changing the condition of switches 33 and 50 and applying velocity feedback. When valve 5 also becomes unsaturated, valve 47 ceases to conduct; the de-energization of coil 48 is, however, delayed while a capacitor 51 discharges through switch 50, so allowing the error signal to reach a vanishingly small valve before acceleration feedback replaced velocity feedback. Specification 986,373 is referred to.
Patent GB-1430593-A (GB)
Title: Record contact spindle
IPC: H04N5/82
Filed: 1972-04-19
Abstract: 1430593 Static discharge of capacitive playback records RCA CORPORATION 13 April 1973 [19 April 1972] 18044/72 Heading G5R In a reproducing device for the capacitive playback of a disc record 4 comprising a dielectric base 56 with grooves formed in a major surface containing geometric signals representing a video signal, a conducting layer 58 covering the major surface and a dielectric layer 62 covering the conducting surface except at an area 60 surrounding the central aperture 54 of the record, the record centring spindle 28 which rotates with turntable 10 is earthed and houses a pivotable hook-shaped member 36 which has the hook end 44 urged by a spring into engagement with the area 60 to leak any static charge on the record to earth. In a second arrangement, Figs. 7-10 (not shown), the spindle includes a pair of conducting members which when the spindle and record are rotating are urged outwardly by centrifugal force into engagement with the area 60.