baber/WOPTO huggingface dataset:
Patent GB-1200973-A (GB)
Title: Improvements in or relating to steering arrangements
Inventor: TAX HANS
IPC: B62D7/14
Filed: 1968-01-18
Abstract: 1,200,973. Programmed control of steering. H. TAX. Jan.18, 1968 [Jan.20, 1967], No.2768/68. Heading G3N. A steering arrangement for heavy load road vehicles is characterized in that a steering angle setting motor is assigned to each of the steerable wheels and is controlled by a transmitter cooperating with a steering angle programme carrier and at least part of the steering programme carriers being driven conjointly by a control member.  As shown, the wheels 12a-12d of a heavy load road vehicle are steered by similar arrangements which, for wheel 12a comprises a spindle 16a, on which a wheel fork, not shown, is mounted, and to which is fixed a worm-wheel 18a meshing with a worm 20a driven by a motor 22a fed from a power booster 24a. The booster is controlled by the output of a differential circuit 26a one input 28a of which is connected to a transmitter 30a, responsive to the desired steering angle from a programme cam 38a, and the other input 32a is connected to an element 34a measuring the actual steering angle. The programme cam 38a is mounted on a control spindle 40 provided with a control lever 42, the rotation of which enables the steering programme to be carried out. The control spindle is axially movable so that a programme cam 38a<SP>1</SP> can be brought into operation. It is stated that this enables a programme for a curved track or for a lateral track, wherein the wheels remain parallel to one another, to be selected. In a further embodiment, for use with vehicles having an adjustable track-width, varied in accordance with a programme, the steering programme is modified, for a curved track, by using a programme drum, bearing a continuously variable range of steering programmes, which is moved axially with respect to the desired steering angle transmitter by a rod member connected to the output of a track width measuring device.
Patent GB-501175-A (GB)
Title: Improvements in or relating to the manufacture of mixed lead and lead oxide
IPC: C01G21/06
Filed: 1938-01-28
Abstract: 501,175. Lead oxides. NATIONAL LEAD CO. Jan. 28, 1938, No. 2770. Convention date, Feb. 10, 1937. [Class 1 (iii)] In making a mixture of lead oxide and metallic lead by the oxide pot method, in which molten lead is fed to the bath continuously, the temperature of the bath itself is maintained within a limit of temperature variation of not more than 150 F., and preferably not more than 100 F., by regulating the rate of feed of molten lead, and if desired also regulating the rate of air flow above the bath. The process is usually carried out using bath temperatures between 700 and 850 F. At 700 F.50 the oxide component of the product is in tetragonal crystals and the average diameter of particle about 2 microns. At 800 F.50 a similar product of particle size averaging 3 microns is obtained, whilst at 900 F.50 the average particle size reaches 9 microns. With increase in temperature the oxide content of the product increases and above 850 F. orthorhombic crystals predominate. As shown in Fig. 3, lead from a feed pot 11 may be supplied by a submerged tapered needle. valve 16 through a trough 13 and small hole 14 to the oxide pot 1, the hole being protected against splash by a guard plate 15. The pyrometer in the oxide pot is so disposed as to be always in contact with the metal bath, and a damper is fitted to enable the air supply above the bath to be regulated.
Patent GB-915297-A (GB)
Title: Improved shield for protecting the earsduring hair treating operations
IPC: A45D44/12
Filed: 1960-01-26
Abstract: 915,297. Ear protectors. MARCH, E. W., MARCH, A., MARCH, T., and MARCH, I. W., [trading as MARCH & CO., F. W.]. April 11, 1961 [Jan. 26, 1960], No. 2803/60. Class 81 (2). Ear protectors for use during hair drying are made from paper discs which are pressed into conical form by introducing flattened folds 2. To avoid tearing the paper during pressing the apex is flattened and, adjacent the edge, a ring of embossments 5 is provided so that the annular rim may be pressed back in use so as to lie flat against the head.
Patent GB-1501121-A (GB)
Title: Retractable chair
IPC: A47B3/14
Filed: 1975-01-22
Abstract: 1501121 Childs chair; seats mounted on tables L J GIST 22 Jan 1975 [28 Jan 1974] 2824/75 Headings A4H and A4J A childs chair is adapted to be slidably mounted on the under surface of a table top such that the chair is moveable between a retracted position below the table and an in-use position adjacent the side of the table. The chair may comprise a tubular frame 38 which telescopes on a tubular M- shaped unit 22 secured to the under surface of the table, a foldable seat and backrest 54, 66 being suspended from the frame by pivoted links 60, 62. Alternatively the unit 22 may be replaced by two channels which slidably receive glides secured to the limbs of the tubular frame 38. In a second embodiment Figs. 6 and 7 (not shown) a pair of spaced rails (106) extending transversely of the chair are secured to the underside of the table and have off-set horizontally extending flanges (112) on which the sides of a rectangular seat supporting frame are slidably mounted. In a third embodiment Figs. 8-11 (not shown) the chair is of drawer-like construction with a backrest and armrests hinged to the seat formed from the bottom of the drawer and arranged to open automatically as the chair is moved to the in-use position.
Patent GB-1015032-A (GB)
Title: Rotating brush floor polishing machine
IPC: A47L11/40
Filed: 1963-01-23
Abstract: 1,015,032. Floor polishing machines. ELECTROSTAR G.m.b.H. Jan. 23, 1963 [Jan. 30, 1962], No. 2863/63. Heading A4F. In order to prevent gyration of the polishing head during operation of a single disc polishing machine a tension spring 13 is connected between a bolt 12 on the machine casing 7 and a peg 14 on the inner end 11 of the pivoted handle, so that a turning movement is exerted by the spring 13 to press the side of the casing 7 opposite the handle on to the floor.
Patent GB-687622-A (GB)
Title: Improvements in or relating to self-locking threads for screws, nuts and other threaded devices
IPC: F16B39/30
Filed: 1951-02-06
Abstract: 687,622. Locking screws and nuts. DODGE, X. R., and BROWN, C. O. Feb. 6, 1951 [Feb. 23, 1950], No. 2891/51. Class 89 (i) [Also in Group XXIV] A locking arrangement for co-operating screw threads, such as in a nut and bolt, or screw or stud in a threaded hole, consists in providing at least one of the members with at least one thread turn of different lead and different pitch, minor or major diameter so as to effect an interference fit with the mating member. As shown a set screw has a normal threaded portion 23 for most of its length adapted for normal screw engagement with a co-operating threaded hole and a portion 24 of decreased lead and increased pitch and minor diameters 30, 28, the major diameter 31 being the same. This latter portion 24 thus has a jamming effect in its co-opetating screw threaded hole in both an axial and radial direction. Alternatively the lead of this portion 24 may be increased and the major diameter increased in addition to or instead of the pitch and minor diameters. Again the thread in the nut or hole may be modified instead of the screw or a modified locking portion may be provided on both.
Patent GB-774567-A (GB)
Title: Improvements in or relating to a method and apparatus for burning cement, lime and the like
IPC: F27B1/24
Filed: 1955-01-31
Abstract: 774,567. Shaft kilns. VON ROLL AKT.- GES., L. Jan. 31, 1955 [Jan. 29, 1954], No. 2896/55. Class 51 (2). In a shaft kiln for burning cement, limestone, &c. which is formed with a central core providing a comparatively narrow annular charge space, the core 5 is a cylindrical hollow metal member having an outer wall in the form of a jacket 9, and is reduced in diameter in the burning zone, this section being lined with refractory material 8. Cooling air or water is supplied through a pipe 10 extending down the middle of the core and leaves by a pipe 11 the rate of flow of coolant being adjusted to working conditions to give a substantially uniform temperature across the charge. The flow of coolant may be reversed to alter the cooling effect. The width of the charge space is preferably less than 1.8 metres. The core may have a ring of longitudinal cooling ducts in its outer wall, Fig. 2 (not shown), or the cross-section of the kiln and the core may be oval, Fig. 3 (not shown). In a further modification, Fig. 4 (not shown), the cross-section may be flattened with straight sides and semi-circular ends. A final modification, Figs. 5 and 6 (not shown), has cooled radial walls extending from the core, and dividing the upper part of the shaft into three sections of equal area, the bottom of the radial walls being given an arched formation.
Patent GB-676249-A (GB)
Title: Apparatus for transforming rotary motion into intermittent motion
IPC: F16H27/04
Filed: 1950-02-03
Abstract: 676,249. Kinematograph apparatus. HUC, M. R. E., and MONROY, F. A. F. Feb. 3, 1950, No. 2914/50. Class 97 (i) [Also in Group XXIV] An intermittent drive of a shaft 20 of a film sprocket 36 from a continuously driven shaft 3 is obtained by means of a cam slot 8 in a member 6 secured to the shaft 3 which oscillates a lever 10 mounted coaxially with the driven shaft 20 by means of a follower 11. The lever 10 is adapted to engage with a disc 13 on the shaft 20 by means of a pin 12 co-operating with a series of holes or notches 14-19 in the disc. The engagement of pin 12 is controlled by another cam slot 9 in a member 7 on the shaft 3 which acts on a follower 23 carried by a member 29 which is adapted to move the lever 10 axially to effect the desired engagement or disengagement of the pin 12 with the disc 13. In operation the pin 12 is engaged during oscillation of the lever 10 in one desired direction and disengaged after the desired movement is completed and during the return stroke of the lever. A locking pin 32 is also adapted to be moved by the member 29 and co-operates with the notches or holes 14-19 of the disc 13 to lock the disc and shaft 20 during the period when the driving pin 12 is disengaged. This locking pin may also be adapted by reason of its conical shape to give the final part of the desired movement to the disc. In a modified arrangement the lever 10 and the member 29 are formed integral and the cam grooves 8 and 9 are provided on the same cam member on the shaft 3. A locking disc is also provided on the shaft 3 which co-operates with peripheral recesses on the driven disc 13.
Patent GB-176215-A (GB)
Title: Improvements in or relating to machines for the production of aerated liquids
IPC: B67D1/04
Filed: 1921-01-24
Abstract: 176,215. Hayes, E. Jan. 24, 1921. Mixing apparatus; valves, arrangement and disposition of.-In apparatus for aerating liquids the gas and liquid supply-pipes enter an aerating- chamber connected to a second aerating-chamber, which is connected to the delivery valve and is provided with a sni.ftvalve, which is normally closed. A valve, normally open, but arranged to be closed when the snift and delivery valves are open, is placed in the gas-supply pipe; special arrangements in connection with the snifting and the liquid supply are also provided. The gassupply pipe 1 enters the cylinder 10 through a lift valve A actuated 'by a lever 29. The liquid-supply pipe 33 enters the cylinder 10 through an opening controlled by a conical plug 36 actuated by the float 38. From the cylinder 10, pipes 12, 39 pass to the second cylinder 13, into which opens the delivery pipe 40 provided with a liftvalve 42. Perforated partitions 11, 14 are placed in the cylinders 10, 13. The cylinder 13 also communicates with a cylinder 22 through the snift-valve B, which is actuated by the lever 29. When the lever 29 is raised by depressing a handle 45 the valve A is closed: the valve B is then opened, allowing gas to enter the cylinder 22 and thus relieving the. pressure, so that liquid can enter by the pipe 33. The handle 45 then strikes against the spindle of the delivery valve 42 and opens it. When the handle is released the valves 42 and B are closed and the valve A opened. At the same time a valve 26 in a vent-pipe 25 connected to the cylinder 22 is opened. This valve is closed when the handle 45 is depressed. The vent pipe 25 and valve 26 may be dispensed with.
Patent GB-113500-A (GB)
Title: Improvements in or relating to Artificial Limbs.
Inventor: BLATCHFORD CHARLES ALBERT
IPC: A61F2/58
Filed: 1917-03-01
Abstract: 113,500. Blatchford, C. A. FIG.2. March 1,1917. Limbs, artificial. -The joint-locking means described in Specification 105,975 is modified for adjustment so that it may be operative or inoperative. Side straps d, c secured to the limb-members carry the joint-members, which turn upon a pivot c, one of which ha.s a toothed sector f adapted for engagement by a lug g upon a latch h arranged to slide upon the side-strap of the other limb. The latch is pressed downwards by a spring i, against which it may be drawn up, to unlock, by means of a harness attached to a loop j. When it is withdrawn, a blade-spring k, l-snaps under a projection m and prevents the return of the latch to lock the joint. The blade-spring is displaced when a finger-button n is pressed in.
Patent GB-524396-A (GB)
Title: Improvements relating to fluid flow governors
IPC: G05D16/06
Filed: 1939-01-30
Abstract: 524,396. Pressure-regulating valves. EVERED & CO., Ltd., and PINKESS, L. H. Jan. 30, 1939, No. 3057. [Class 135] A pressure regulating valve has a single actuating diaphragm, the central and marginal parts of which are clamped between coacting annular surfaces on the casing and a detachable cover disposed in a plane in close proximity to the perimeters of the fluid inlet and outlet openings. In the form shown in the Figure the centre of the diaphragm is pressed against a washer 15b supported by a shoulder on the valve spindle 9a by a member 22 screwed on to a screwed tail on the spindle. The outer periphery of the diaphragm is clamped between non-metallic washers 15 by screws 13 and an intermediate part is pressed against a surface 5b by a conical wall 12b on the cover 12 engaging a metallic washer 15a. Loading is applied to the annular part of the diaphragm by a ring 16 connected by a diametral bar 16a passing through slots 12c in the wall 12b to the valve spindle. The member 22 serves as an anchorage for loading weights 23, 23a and is fitted with a nut 24 to prevent accidental removal. The chamber 14 below the annular part of the diaphragm is connected by a passage 5g with an annular chamber 20 surrounding the throat of a Venturi pipe in the outlet 7, to which it is connected by radial passages 19a. In a modification the wall 12b is made cylindrical and the bar 16a itself constitutes the load.
Patent GB-1510054-A (GB)
Title: Carbonyl compounds
IPC: C07C69/734
Filed: 1976-01-27
Abstract: 1510054 Carbonyl compounds; tocopherols F HOFFMANN-LA ROCHE & CO AG 27 Jan 1976 [27 Jan 1975 8 Dec 1975] 03078/76 Headings C2C and C2V Novel carbonyl compounds of formula where R 1  is an ether group and R 2  is H, alkoxy or dialkylamino are prepared by reacting an optically active isomer of formula where one of R 3  and R 4  is H and the other OH with an orthoacetic acid ester H 3 C-C(OR 5 ) 3 , a ketalized N - dialkylacetamide H 3 C-C(OR 5 ) 2 - N(R 5 ) 2 , an alkoxyvinyldialkylamine or or an alkylvinyl ether and subjecting the reaction product to Claisen rearrangement. R 2  groups may be interconverted. Intermediates are prepared according to the following reaction scheme in which R is t-butyl, R 1  is t-butoxy and Hal is Br. The products of the invention are converted into 2(R),6(R) - 2,6,10 - trimethylundecan - 1- ol [C 14  - alcohol] by both the following reaction schemes R 2  being t-butyl, R 1  being t-butoxy, the leaving group being tosyloxy and the starting compound of the second scheme being obtained by hydrogenation of an ester of the invention. (2R,6R) - (-) - 1 - bromo - 2,6,10 - trimethylundecane is converted to (2R,4<SP>1</SP>R,8<SP>1</SP>R)-α-tocopherol benzyl ether via a Grignard reaction with (s) - (-) - 6 - benzyloxy - 2,5,7,8 - tetramethylchroman - 2 - ethyl methanesulphonate, and the ether is converted to the corresponding tocopherol and its acetate. (S) - (-) - 6 - benzyloxy - 2,5,7,8 - tetramethylchroman - 2 - ethanol is prepared by reduction of the corresponding -2-acetic acid ethyl ester and converted to its methansulphonate.
Patent GB-1042900-A (GB)
Title: Vulcanisation accelerator
IPC: C08K5/00
Filed: 1964-01-24
Abstract: A compound of formula <FORM:1042900/C3/1> wherein R is hydrogen or a hydrocarbon radical containing 1 to 10 carbon atoms accelerates the vulcanization of natural or synthetic rubbers in the presence of a metal oxide. Exemplified compounds are ethylene, propylene and 1,2-butylene glycol sulphites.
Patent GB-193391-A (GB)
Title: Improvements in tooth or massage brushes
IPC: A46B9/04
Filed: 1923-02-02
Abstract: 193,391. Withycombe, R. M. Feb. 16, 1922, [Convention date]. Toothbrushes; indiarubber brushes.-A tooth or massage brush is provided with a frictional surface formed by winding under tension on a former a strip 7 of soft rubber, having a series of serrations 8 cut therein, the adjacent windings being cemented or secured together. A distance-piece 10 is preferably inserted midway in the space left on removal of the former and is secured by means of an aluminium or other metal fastening. The wound strip is then sprung on to a base comprising two projections integral or rigid with the end of the handle 14. The handle in a modified form may be provided with a recess within which the base is situated.
Patent GB-973786-A (GB)
Title: New monoazo dyestuffs
IPC: C09B62/473
Filed: 1963-01-25
Abstract: The invention comprises dyes of the general formula <FORM:0973786/C4-C5/1> where X is an -SO2- or -CO- bridge member, Y is a saturated or unsaturated aliphatic hydrocarbon radical containing more than one carbon atom, Z is an -SO2-, -SO-, -O-or -S- member, R is a hydrogen atom or an alkyl, aryl, aralkyl or cycloalkyl radical, R1 is an alkyl, aryl, aralkyl or cycloalkyl radical, R11 is a hydroxyl or amino radical, R111 is a hydrogen atom or an alkyl or aryl radical, R1111 is a methyl, phenyl, carboxyl, carbonamido or carbalkoxy radical and n is 0 or 1.  The dyes are produced by conventional diazotization and coupling or acylation procedures. The dyes are suitable for dyeing animal, vegetable and synthetic fibres and react with cellulose fibres in the forms of solutions or suspensions in the presence of alkaline agents.  In examples: the sodium salt of 3-(b -sulphonylpropionylamino)-1-aminobenzene - 6 - sulphonic acid is diazotized and coupled with 3-methyl-5-pyrazolone (1); and 1 - amino - 3 - (b  - methylsulphonylpropionylamino)-benzene is diazotized and coupled with 1 - (41 - sulphophenyl) - 3 - methyl - 5 - pyrazolone (2).  The latter dye is also prepared by combining the diazo compounds of 3-nitro-1-aminobenzene or 3-acetylamino-1-amino-benzene with 1-(41-sulphophenyl)-3-methyl-5-pyrazolone, converting the dyes produced into the aminoazo dye by reduction or saponification and acylating in the presence of sodium bicarbonate with b  - methyl - sulphonyl - propionic acid chloride or anhydride.  A large number of additional dyes is specified.
Patent GB-269698-A (GB)
Title: Improvements in or relating to gas burners for lighting fires
IPC: F24B15/00
Filed: 1926-02-04
Abstract: 269,698. Harrison, A., and Smith, N. S. Feb. 4, 1926. Perforated-tube burners; burners. mounting; burners for special purposes.-A gas burner for lighting fires comprises a perforated tube f rotatable about a horizontal mixing-tube e, pivoted to a gas-inlet g at the side of the stove so that it can be swung in a horizontal plane away from the grate. An air-regulator c and a locking-ring d are provided. Specifications 4935/88 and 117,796 are referred to. The Provisional Specification states also that the burner may be swung in a vertical plane.
Patent GB-273198-A (GB)
Title: Apparatus for the mechanical solution of trigonometrical problems
IPC: G01C21/20
Filed: 1927-02-04
Abstract: 273,198. Addison, H., and Luard, W. B. Feb. 4, 1927. Addition to 264,755. Plane trigonometry calculators.- The vector-triangle solving apparatus of the parent Specification is modified to enable the resultant quantities to be indicated automatically after the course settings have been made. For this purpose one of the arms is dispensed with and all the cursors of the four remaining arms are linked together. As shown in the Figure, there are only two arms, namely d and q, to represent the courses steered. The cursor e on arm d is provided with a drift angle scale and a pointer g connected by an extensible link with the wind cursor l at k. Another drift angle scale concentric with the base is carried by the arm q at its outer end to enable the ground course arm d<2> to be set. As in the parent case the three cursors r, s, l are connected by a pantograph linkage t so that after the arms q and d have been set to the respective air courses and the arms d<2> and g to the corresponding drift angles, the wind and ground speed vectors can immediately be read off by reference to the arms m and d<2>.
Patent GB-141308-A (GB)
Title: An improved tobacco-pipe scraper
IPC: A24F9/10
Filed: 1920-02-03
Abstract: 141,308. Keeping, A. C., and Payton, W. G. Feb. 3, 1920. Scrapers for tobacco pipes. - Scraper blades B, rounded at the lower ends B', are pivoted at A<4> in the forked ends of a spring handle A of horseshoe shape.
Patent GB-507093-A (GB)
Title: Improvements in or relating to buoyancy and like motors
IPC: F03B17/02
Filed: 1938-02-02
Abstract: 507,093. Buoyancy motors. HEINISCH, A. Feb. 2, 1938, No. 3302. [Class 69(i)] Comprises a buoyancy motor which is arranged in a concrete water tank, or in a lake, &c. A frame on the tank supports the driving- gear. Two or more cylinders 12 are provided, and these rise and fall in pairs in different compartments. Air is supplied to and exhausted from the cylinders in their bottom and top positions respectively. The cylinders of a pair are connected by chains, free-wheel pulleys and tooth gearing to operate a power shaft. The free-wheel pulleys 25 have inclined abutments on one side and are pressed by springs on the other to drive the shafts 26 through pins thereon. The shaft 26 transmits power through toothed and bevel gearing 52, 53, 54, 56A, 57. The operating air is supplied from compressing apparatus to chambers 6A on the bottom of the tank provided with air vents 7. The top of the cylinders contain exhaust valves 15 opened by tappets 31 and rack-and-pinion gearing when the cylinders reach the top of their strokes. Similarly air valves 9 on the chambers 6A are operated to supply the cylinders with air therefrom. These are opened by tappets 14 connected to weighted floats 37, 40 in auxiliary cylinders attached to and communicating with the main cylinders. The valves are closed by floats attached to the racks. The air compressor consists of two cylindrical domed containers 58, Fig. 11, which are supplied with water from an elevated tank through pipe 61 with branches 61A, and compressed air is supplied therefrom through pipe 61B to the air chambers 6A. The valves of pipes 61A, 61B are operated by floats in the domes through racks and pinions.
Patent GB-155790-A (GB)
Title: Improvements in or relating to boxes for photographic printing
IPC: G03B27/02
Filed: 1920-02-03
Abstract: 155,790. Golesceano, E. Dec. 19, 1919, [Convention date]. Printing-apparatus.-A printing-box has a lamp 10, a reflecting mirror 12, a hinged pressure lid 2, and a spring contact plug 14 fitted in the hinge which automatically extinguishes and lights the lamp when the lid is opened and closed.