baber/WOPTO huggingface dataset:
Patent GB-975083-A (GB)
Title: Stepped resistance apparatus
IPC: G01R1/20
Filed: 1961-08-11
Abstract: 975,083. Resistance networks. M. LOWENBERG. Aug. 10, 1962 [Aug. 11, 1961], No. 29162/61. Heading H3U. A stepped resistance apparatus comprises a number of different standard resistances and a switch for combining them in different ways in series without shorting-out any of the unrequired resistances. In the circuit of Fig. 1, three sets 20-30, 20<SP>1</SP>-30<SP>1</SP>, 20<SP>11</SP>-30<SP>11</SP> of aligned contacts are shown in linear array but form parts of an annular assembly in the actual apparatus. A switch 12 has three aligned terminals 10, 11, 13 which may move through eleven positions in each of which they contact in turn three corresponding contacts 20, 20<SP>1</SP>, 20<SP>11</SP>; 21, 21<SP>1</SP> ,  2111 &c. At the same time, a fourth terminal 14 is arranged to contact in turn the contacts of the lowest array starting at contact 2811 and moving through contacts 29<SP>11</SP>, 30<SP>11</SP>, 31, 20<SP>11</SP>, 21<SP>11</SP> ... 26<SP>11</SP> (eleven positions). The contact 31 is isolated. Four standard resistors 41, 42, 43, 44 having resistances in the ratio 1 : 2 : 3 : 4 are arranged respectively between contacts 21, 21<SP>1</SP>; 22, 22<SP>1</SP> &c. and the rest of the contacts are connected in the manner shown. It can be seen that as the switch is moved through its eleven positions, resistances in the ratio 0 : 1 : 2 : 3... 10 are obtained between terminals 10 and 11. The circuit may form part of a decade resistance box. A similar method of obtaining a decade of resistances using only two sets of contacts is shown in the self-explanatory, Fig. 2. In practice, each resistor is associated with a certain contact and wiring resistance. This may amount to, say, 0.025 # and the standard resistors 41-44 are reduced by this amount from their nominal values of e.g. 1,2,3 and 4#. Further, there may be a variation of e.g. Œ0.5% in the values of the standard resistors. For the 1-4# positions of the switch the " terminal tolerance" of the device will be equal to the resistor tolerance, i.e. 0.5%. However, for the 5-10# positions several resistors in series are used and the terminal tolerance will exceed this figure. To compensate for this and to bring the terminal tolerance of the device to the same value for all switch positions, extra resistors each having a value equal to 0.025# (the contact and wiring resistance) are connected between contacts 24 and 25, 27 and 28, 29 and 30, 27 and 23<SP>1</SP>. These resistors are made from lengths of resistance wire. The extra resistors may themselves vary in value and a tolerance figure must be chosen for them. The tolerance assumed in choosing the standard resistors must then be reduced by this amount.
Patent GB-1440001-A (GB)
Title: Organophosphonous acid derivatives and their use as uv absorbers
IPC: C07F9/48
Filed: 1973-06-20
Abstract: 1440001 Phosphorous acid derivatives as UV absorbers SANDOZ Ltd 20 June 1973 [23 June 1972 7 July 1972] 29286/73 Heading C3P [Also in Divisions C2 and D1] A polymeric material is stabilized against the action of ultra-violet radiation by incorporating therein or applying therto a compound of Formula I where R is C 1 -C 18  alkyl; C 5 -C 8  cycloalkyl; alkylcycloalkyl, cycloalkylalkyl or alkylcycloalkylalkyl of up to 18 C atoms, the cycloalkyl radical in each case having 5 to 8 C atoms; or aralkyl of up to 18 C atoms; such radicals being optionally substituted by 1 or 2 substituents selected from F, Cl and Br, any phenyl group in the aralkyl radical optionally being substituted or further substituted by 1 or 2 C 1 -C 4  alkyl radicals, R 1  is as defined for R or is H, R 2  is H, F, Cl, Br or C 1 -C 6  alkyl optionally substituted by 1 or 2 substituents selected from F, Cl and Br, R 3  is C 1 -C 10  alkyl, C 7 -C 10  aralkyl, phenyl or phenyl substituted by 1 or 2 substituents selected from C 1 -C 4  alkyl and alkoxy, F, Cl and Br, x is 0 or 1, y is 1 or 2 and Z is H or a y-valent metal ion.
Patent GB-1110196-A (GB)
Title: A process for preparing n-t-alkylated urea
IPC: C07C273/18
Filed: 1966-06-29
Abstract: N-t-Alkylated urea is obtained by reacting a mono-olefin with urea contained in a mixture of urea, sulphuric acid and cyclohexane or dichloromethane or mixtures thereof, wherein the mono-olefin is of the formula <FORM:1110196/C2/1> in which R1, R2 and R3 are -H, -CH3, -CH2CH3, or -CH2R4, R4 being alkyl wherein said mixture contains between 1.5 and 2.5 mols of sulphuric acid of from 90 to 96% by weight concentration per mol of urea.  The reaction is suitably effected at 5-30 DEG  C., the olefin to urea ratio is preferably at least 1 and the inert diluent preferably comprises at least one-half, by volume, of the reaction mixture. In the examples, the olefin starting material employed is isobutylene and N-t-butyl urea and N,N1-di-t-butyl urea are obtained.
Patent GB-713558-A (GB)
Title: Improvements in or relating to recording devices for vehicles
IPC: G01P1/12
Filed: 1951-12-14
Abstract: 713,558. Recording rest or motion KIENZLE APPARATE GES. Dec. 14, 1951 [July 7, 1951], No. 29331/51. Classes 106 (3) and (4) Recording-apparatus for use on vehicles for recording on a diagram disc the driving conditions, namely, driving speed, the distance covered and the driving and stopping periods of the vehicle, the driving and stopping periods with one driver being recorded on an annular field of the disc by an oscillating pendulum having a writing member thereon in contact with the disc comprises an additional manually operated device which restricts the movement of the pendulum so as to record the driving conditions for other drivers within the annular field, but occupying only a part of the field, whereby there can be recorded within the field the driving conditions for several drivers. A pendulum 2 having a weight 3 and pen 4 is pivoted at 1 and held in unstable equilibrium by a spring 5 when a vehicle is stationary and is operated by the vibrations of the vehicle when it is moving, its movements being limited by stops 6, 7, while the pen 4 records on an annular field of a clock driven chart 8 a narrow line 9 when the vehicle is stationary and a broad line equally disposed radially on both sides of the line 9 when the vehicle is moving. The weight 3 has a pin 11 disposed between the prongs of a forked double lever 12 pivoted at 13 and having a slit 14 into which extends an adjusting pin 15 mounted on a shaft 16 operable by a switch lever 17 and held in set position by a square piece 18 and leaf spring 19. When the switch lever 17 is turned to position 1, Fig. 2, one prong of the forked lever engages the pin 11 and halves the amplitude of oscillation of the pendulum so that when the vehicle moves the pen traces a wide line 20 on one side only of the line 9 and when the switch lever 17 is turned to position 2 the other prong of the forked lever engages the pin 11 and the pen traces a wide line on the other side of the line 9. Thus with the three positions of the switch corresponding to different drivers, a record is obtained of who is driving. The adjusting device may be provided with a lock 22 which can only be operated manually with the aid of different keys, one driver's key only allowing a switching from 0 to 1, another's only from 0 to 2 and the keys only being removable when in position 0.
Patent GB-262412-A (GB)
Title: Improvements in methods of and devices for testing the position of the driving shafts in piston machines and the like
IPC: G01B11/27
Filed: 1926-11-20
Abstract: 262,412. Zeiss, C. [Firm of]. Dec. 3, 1925, [Convention date]. Testing-apparatus, auxiliary; sighting-devices.-Comprises a method of testing the alignment of an axis. for example, the axis of engine cylinders, by means of a telescope', the optical axis of which is adjusted in a definite position relatively to one of the axes to be tested. In the example described the telescope 6 is mounted in a tubular body 11 provided with sleeves 15 having distance rods 17 to retain the bodv 11 coaxial with the cylinder 4. The telescope 6 is fitted with an objective 7 and a graticule 9 in its focal plane, and is adjustable hv screws 13 about a ball-shafted collar 12. Rings 18, 19 on the frame 1 of the engine support a tube 25 containing reflecting prisms 26, 27 provided with marks 30, 31, the latter consisting of longitudinal scales. In use the telescope 6 is adjusted until the point of a gauge 38 applied at various parts of the frame 1 is always seen on the centre of the marks 9. The axis of cylinder 4 is correct if the telescope 6 is coaxial with the tube 11, a condition determined by the position of the screws 13. The tube 25 is then adjusted until the image of the mark 30 is situated on the marks 9. A measuring device 37 will enable the tube to be set coaxial with the bearing 3 and the direction of the axis of the bearings can then be ascertained from a reading of the images of the marks in the telescope eyepiece, Fig. 5. A similar test can be carried out with respect to the other cylinder 5, whereby the parallelism of the cylinder axes is ascertained. A marking device 40 is fitted to the tube 25 so that a number of points may be marked on the frame 1 equidistant from the axis of the bearing and tube 25.
Patent GB-507036-A (GB)
Title: Improvements in and relating to diecasting machines
IPC: B22D17/12
Filed: 1938-10-11
Abstract: 507,036. Casting-machines. SCHWEINBURG, A. Oct. 11, 1938, No. 29407. [Class 83 (i)] Moulds.-In a machine for casting zinc, aluminium, copper-aluminium-magnesium alloy, &c. having a block 4 containing mould cavity 6, gate 8, and pressure chamber 5 with a common dividing surface, the gate is closed, before casting, by a piston 9 sliding in a bore 7 divided by said dividing surface and having its axis parallel thereto. The end wall of this piston closes the wall opening of the chamber (as shown) but is moved to the right, when the plunger 11 moves down, by a device 10. In modifications there may be two gates, two mould cavities, and two pistons 9 or a single piston may control two gates.
Patent GB-461763-A (GB)
Title: Improvements in or relating to receiving circuits for very short waves and vacuum tubes therefor
IPC: H04L27/04
Filed: 1935-10-25
Abstract: 461,763. Valves and valve circuits. STANDARD TELEPHONES & CABLES, Ltd. Oct. 25, 1935, No. 29534. Convention date, Nov. 24, 1934. [Classes 39 (i) and 40 (v)] A short-wave valve of the Barkhausen-Kurz type is arranged so that an incoming modulated wave produces either a frequency or amplitude modulated local - oscillation of different frequency. As shown in Fig. 1, a tuned circuit 14 is inserted between the cathode 2 and grid 3. Incoming signals from a dipole aerial 13 are applied to the grid and are amplified, whilst sustained oscillations of a different frequency are simultaneously generated in the circuit 14 by the negative-conductance characteristic of the valve. An additional tuned circuit may be provided between the electrode 4 and cathode 2, and may be coupled to the circuit 14. In Fig. 4, the braking or reflecting electrode 4 is made in two half-cylinders 4, 4<1> coaxial with the cathode. The grid 3 is connected to one tuned circuit (1) and the cylinders 4, 4<1> to another circuit (11) comprising a doublet aerial 18, 19 and a concentric feed-line 20, 21. The same valve thus serves as an ultra highfrequency amplifier and as a modulator. The construction of the valve is described in Specification 461,807. Specifications 358,064 and 432,781 also are referred to.
Patent GB-650868-A (GB)
Title: Improvements in rotary valve internal-combustion engines
IPC: F01L7/02
Filed: 1948-11-15
Abstract: 650,868. Valves. HASLER-STEVENS CORPORATION. Nov. 15, 1948, No. 29617. Convention date, Nov. 21, 1947. [Classes 7 (ii) and 7 (vi)] In a rotary valve 49, Figs. 3-5, for a multicylinder engine, each valve section comprises a pair of discs 63-64-71-72, journalled in complementary semi-cylindrical recesses 26-30 and 38-42 in the cylinder head 20 and its detachable cover 37, the pairs of discs being ported at 78, 87, Figs. 6 and 8, to control ports 73, 74 in combustion chambers 21-24, and rigidly connected by hollow cell-like members 58 forming passages 61, 62, for connecting the cylinders to the intake or exhaust ducts 82, 79. The valves 63-64 and 71-72 control the exhaust of the cylinders 1 and 4 respectively and the valves 67-68 the exhaust of the cylinders 2 and 3, whilst the valves 65-66 and 69-70 each control the intake to a pair of cylinders 1, 2 and 3, 4. Sealing rings 77, Fig. 6, adjacent each of the ports 73, 74, are carried by diaphragms 76 which force them against the valve discs, and porous lubricating pads 90, fed with oil through ducts 94. 96, are also held against the valve discs by diaphragms 91. The cylinder head 20 and cover 37 are formed with water-cooling jackets and a passage through the valve shaft 49 interconnects the hollow cells 58 in the valves to allow the circulation of a cooling fluid therethrough.
Patent GB-391455-A (GB)
Title: Improvements in machines for cutting rubber threads
Filed: 1931-10-26
Abstract: 391,455. Cutting rubber sheets. FRIEG, F., 113, High Street, Slough, Buckinghamshire. Oct. 26, 1931, No. 29683. [Class 31 (i).] In a machine for cutting curved rubber sheets into threads, discs 3 co-operate with a wood roll 1 to sever the sheet. The discs 3 are driven at high speed and the roll 1 at low speed. A sectional wood roll 2 presses the sheet on to the feed roll 1 to allow the drag of the knives to tension the sheet. The rolls 1, 2 are of frustoconical form. Specification 391,484 is referred to.
Patent GB-1123714-A (GB)
Title: Improvements in and relating to the feeding of materials to mixing chambers
Inventor: HARRISON WILLIAM IRVINE
IPC: B28C9/04
Filed: 1966-07-01
Abstract: 1,123,714. Mixing apparatus. THOMAS GREEN & SON Ltd. 3 May, 1967 [1 July, 1966; 5 Nov., 1966], Nos. 29691/66 and 49685/66. Heading B1C. A machine for mixing granular, powdered, and liquid materials has a water tank, a hopper for dry materials, and a bitumen tank each' divided into the same number of compartments, each compartment being separately dischargeable into a mixing chamber. In the road surfacing machine shown, each of four compartments of the water tank 1 is separately dischargeable by a member 4 through pipe 2 into the mixing chamber 3. Similarly each of four compartments of a bitumen tank 5 is so dischargeable by a member 7 through pipe 6. A mixture of sand, cement, and granite chippings is stored in a four compartment rotary drum 8, each compartment in turn being located over a chute 19, and its bottom opened by a member 16. Thus four batches of mix can be prepared without recharging the tanks or hoppers, and one batch can be laid from a spreader box 21 while the next is being mixed in chamber 3.
Patent GB-830500-A (GB)
Title: Method and apparatus for forming the internal surface of a tubular workpiece to a predetermined shape
IPC: B21H5/02
Filed: 1957-09-20
Abstract: 830,500. Rolling tubes. MICHIGAN TOOL CO. Sept. 20, 1957 [March 1, 1957], No. 29732/57. Class 83 (4). In a method of forming the internal surface of a tube to a predetermined shape, e.g. to form splines, serrations, internal threads, gears or oil grooves, small portions of the tube lying on a helical path are successively pressed with a rolling action inwardly against a mandrel of complementary shape. A hardened metal mandrel 16 having a plurality of external splines 17 is attached to a spindle, the tube 20 being rotatably mounted at one end over the mandrel and at the other on a centre. The inside of the tube adjacent the mandrel is rolled between hydraulically reciprocated platens 24, 25 mounted on slides 26, 28. The tube may be heated or may be rolled at room temperature. The working surface of each die 24, 25 comprises a ridge 36 which exerts pressure to force a narrow helical band of the tube on to the mandrel, the ridge being sufficiently wide for the bands to overlap and so press the length of tube traversed by the ridge during the working stroke of the die. Each ridge has side surfaces 37, 38 to form shoulders 39, 41, Fig. 4 (not shown), on the work and the dies and ridges have relieving taper at the ends so that the pressure is applied and released gradually. The tube is rotated by the dies which are adjustable by gibs 31 to suit the size of the tube. Alternatively the platens are provided with V-shaped ridges. In a modification the platens may be replaced by circular dies with a helical ridge.
Patent GB-414928-A (GB)
Title: Rear support for firearms
IPC: F41A27/06
Filed: 1933-10-27
Abstract: 414,928. Gun mountings. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V BRNE, and STALLER, K., 7, U Lazeretu, Br³nn, Czecho-Slovakia. Oct. 27, 1933, No. 29914. [Class 92 (i).] An adjustable strut for elevating and supporting the rear end of a firearm has means which in one position secures the firearm and in another position releases the firearm from the strut. The strut comprises telescopic right and left-hand threaded screws 1, 2 splined to permit only relative axial movement by a key 4 and keyway 3, and engaged by a sleeve 5 having an operating handwheel 6. The member 1 is pivoted to a slide 8, seating on the stand carrying the firearm, and the upper end of the member 2 is tapered at 9 to seat in a member 10 mounted in the butt of the gun. A spring- plunger 12 snaps into a groove 13 around the head 9 to retain the butt and strut in engagement. A nut 15 in the form of a handwheel is adapted to lock with the sleeve 5 when the gun is at the required elevation, or the nut may be raised to disconnect the butt of the firearm from the strut.
Patent GB-208139-A (GB)
IPC: G02B23/00
Filed: 1923-11-29
Abstract: 208,139. Zeiss, C. [Firm of]. Dec. 9, 1922, [Convention date]. Telescope systems. - Lens systems for Gallilean telescopes consist of an objective comprising two collective cemented tenses having the lens with the lower refractive index facing the incident light and an eyepiece comprising a cemented triplet the inner lens being of flint glass. Numerical data are given in the Specification.
Patent GB-302340-A (GB)
Title: Improvements in the manufacture of creped artificial silk yarns
IPC: D01F11/02
Filed: 1928-10-17
Abstract: 302,340. Soc. Inoxi. Dec. 16, 1927. [Convention date]. Void [Published underSect. 91 of the Acts]. Yarns, treating with liquids.-In a process for the production of creped artificial silk yarns, particularly applicable to those obtained from nitrocellulose, viscose, and cupra-ammonia solutions, cellulose dissolved in other solvents, or hollow or swelled artificialsilk, and even to cellulose acetate when employed either alone or reinforced with other textile yarns, the yarns before twisting are dehydrated either partially or totally by heat, then treated with mineral salts in aqueous solutions of mineral or organic acids capable of preventing appreciable rehydration before the twisting operation which then follows in one or more stages, according to the nature of the silk and the degree of creping, and with one or more passages through hot air. In an example, a viscose thread is partially dehydrated by the action of heat, then soaked in a 3‹ BÚ. solution of acetate of alumina, aired and dried, and then twisted to 2,200 turns per metre and used as a weft in a loom to produce a brilliant creping effect on the wetting of the fabric either by immersion in the dye bath or by previous steeping in luke warm water. The crepe effect so obtained is comparable with that obtained on natural silk having a shrinkage of 25 per cent.
Patent GB-1190436-A (GB)
Title: Improvements in and relating to Containers and Associated Equipment Suitable for Material requiring to be Compacted
Inventor: RHODES ALFRED
IPC: B65F9/00
Filed: 1967-06-29
Abstract: 1,190,436. Containers; packaging compacted refuse &c. FLETCHER & STEWART Ltd. 1 July, 1968 [29 June, 1967], No. 30052/67. Headings B8C and B8P. [Also in Division E2] A container 1, Fig. 1, for filling with waste material &c. which has been compacted in a press 2, has a door 8 which can be slidden vertically from the closed position shown to its open position or can alternatively be pivoted about top hinges 11 to its open position. As shown, the container 1 is aligned with the exit shoot of the press 2 in which the waste material &c. is compacted. When a fluid-pressure servo 4 on the press is energized, the press door 3 is slidden vertically upwards to its open position. Hooks 5 on the press door 3 engage beneath the container hinges 7 &c. and release safety catches 6, Fig. 4, permitting the container hinges to separate and allow the upward movement of the container door 8. Simultaneously, a scoop device 20 on the press 2 is raised to connect the sills of the two doors 3, 8. When the press door 3 is lowered after completion of the container filling operation, the scoop 20 and the container door 8 are simultaneously lowered, the hinges 11 re-engaged; the lower edge of the container door 8 is secured by a pair of catches 10 on opposite sides of the container and interconnected for simultaneous actuation by hand levers 14. As shown, the container 1 is a free container supported on a trestle 3. The container 1 may have doors at both ends. The container 1 may alternatively be located on a moving table, or brought in the loading position on a vehicle and loaded while still on the vehicle. The filled container 1 when removed to its unloading position is opened by releasing the catches 10. Either the pressure of the contents of the container 1 causes the door 8 to swing upwardly about the hinges 11, or the container is tilted to cause the door 8 to swing open.
Patent GB-159856-A (GB)
Title: Improvements in machines for moulding concrete and like blocks
IPC: B28B1/087
Filed: 1920-10-23
Abstract: 159,856. Soc. Bonnet, ainÚ, et ses Fils. March 4, 1920, [Convention date]. Addition to 151,991, [Class 87 (ii), Moulding plastic &c. substances]. Operating clutches.-To arrest the racks 8 at a predetermined height, the clutch 21 on the shaft 15 is automatically disengaged from the worm 17, meshing with the worm wheel 9 by a lever 45 which is rocked by a projection 47<1> on a sleeve 47 mounted loosely on the clutch member 10 and driven by a pin 49 on the member, this pin riding idly in a groove 48 in the sleeve during the elevation of the racks 8, and such groove being of a length corresponding to the elevation desired. Where the lift of the racks does not require a complete revolution of the shaft 6, the sleeve 47 may be omitted, the lever 45 being actuated by a pin on the member 10.
Patent GB-931102-A (GB)
Title: Drum screen or belt screen machine for purifying liquids, particularly water and waste water
IPC: B01D33/00
Filed: 1961-08-21
Abstract: 931,102. Rotary filters; travelling-band filters. U. PASSAVANT, and P. SCHRAMM, [trading as PASSAVANT-WERKE]. Aug. 21, 1961 [Aug. 24, 1960], No. 30133/61. Class 46. An outward-flow filter drum consists of end walls 1, 2, Fig. 1, connected by bars 3 to which are secured frames 3a, Fig. 2, the frames having secured to them, in turn, roof-shaped fabric-covered screening baskets whose main filtering surfaces 5 extend transversely to the axis of rotation of the drum. The ends of the baskets may also be covered with fabric. Unfiltered liquid enters at 12 for outward flow, whilst residue is backwashed by sprays 7 into a channel 13 discharging at 14. Fig. 4 shows a travelling-band filter with an identical arrangement of screening baskets.
Patent GB-373923-A (GB)
Title: Improved pipe joint
IPC: F16L13/06
Filed: 1931-10-30
Abstract: 373,923. Pipe joints. BABCOCK & WILCOX, Ltd. and DAVY, C. H., Babcock House, Farringdon Street, London. Oct. 30, 1931, No. 30145. [Class 99 (i).] In a butt joint the flange d is rolled over on to the pipe to form an abutment for the loose flange a, the space formed at e being filled by welding. The end of a thin pipe is upset internally before the flange d is formed.