baber/WOPTO huggingface dataset:
Patent GB-200853-A (GB)
Title: Improvements in and relating to grinding or like machines
IPC: B24B47/06
Filed: 1922-01-18
Abstract: 200,853. Marks, E. C. R., (Greenfield Tap & Die Corporation). Jan. 18, 1922. Manually - actuated multiple-way valves. -The reciprocation of the work-table of a grinding or like machine and the crossfeed of the grinding- wheel &c. are effected by fluid pressure. The table is reciprocated by a cylinder and piston mechansim, the flow of fluid thereto being controlled by a main valve, the movements of which are controlled either by hand or by auxiliary valves operated by dogs on the table; the cross-feed is controlled by the auxiliary valves. A throttle' valve is provided to effect a higher speed of the table for examination of the work &c., and is moved by a handle W which is operable also to move the main valve. The ends of the cylinder are connected to a casing P in which is a main valve 42, carried by a rod 44. Fluid is supplied by a pump and passes through a pipe 32 to a throttle valve V controlling the supply of fluid to the main valve. The valve V is carried by a. stem 34 and the opening ot the valve is determined by an adjustable bush 39 in which the end of the stem engages, the valve being held open normally by a spring 38. To the stem of the valve is pivoted the forked lower end of an operating handle W, which also is connected to the rod 44. The movements of the main valve are controlled by two auxiliary valves mounted in the casing P and actuated by dogs 79, 86 on the table. The handle W is formed at 68 into a strap which is pivoted by a bolt 72 to the rod 44 and to a sleeve 69 having a rearwardly projecting arm. On pulling the handle, it rotates about the axis of the rod 44, thus opening the valve V and also, through a stud on the arm, moving a wing 75 on the stem of the right hand auxiliary valve out of the path of the dog 79. Movement of the handle to the right or the left moves the main valve; thus, by pulling the handle out and moving it to the right, the table will move rapidly to the left, remaining in the extreme position whilst the work is removed or examined. The reciprocation of the table is started by moving the handle to the left and allowing the spring to hold the throttle valve in its normal position, the dogs and the auxiliary valves then causing automatic reciprocation at normal speed.
Patent GB-1396041-A (GB)
Title: Fluorocarbon compounds
IPC: C07D213/65
Filed: 1972-01-13
Abstract: 1396041 Fluoroalkyl pyridines IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Dec 1972 [13 Jan 1972] 1597/72 Heading C2C Fluoroalkyl pyridines of the general formula [C n F 2n-1 (HF) x ](C 2 H 4 N)O, where n is an integer of 3 to 20, x is 0 or 1, (C 5 H 4 N)O is a pyridine nucleus with an oxygen atom shown covalently attached to a C atom of the nucleus, and the group C n F 2n-1 (HF) x  is linked to either the O or N atom, are prepared by reacting a perfluoroolefine C n F 2n  with a hydroxypyridine (C 5 H 4 N)OH in the presence of a proton acceptor and an inert solvent. The above compounds may be quaternized to give surfaceactive pyridinium salts or may be oxidized to amine oxides. Amongst the examples 3- (perfluorodec - 1 - enoxy)pyridine, 3 - (hexafluoro - 2H - propoxy)pyridine and N - (perfluoroprop - 1 - enyl) - 4 - oxo - pyridine are prepared.
Patent GB-570985-A (GB)
Title: Improvements in or relating to composite paper structures, including bags and other articles made therefrom
IPC: B65D30/08
Filed: 1943-01-30
Abstract: 570,985. Paper bags. STEVENS, A. H. (Arkell Safety Bag Co.). Jan. 30, 1943, No. 1606. [Class 94 (ii)] [Also in Group VIII] Two or more plies 2, 3, 4 of crÛped paper are adhered as by asphalt or rubber latex applied to the crests, e.g. of the inner surfaces of the outer plies 2, 4, substantial interlocking or nesting of the crÛpings of adjacent plies being avoided ; air-pockets formed being thus formed between the plies. The plies 2, 3, 4 preferably overlap as illustrated to facilitate seaming when the paper is folded &c. to form a bag, e.g. for cement &c. The bag may have bellow folds along the sides, and the end may be folded and sewn. The inner web 3 may comprise two plies adhered by asphalt before crÛping, and the outer plies 2, 4 may also be treated with waterproofing material.
Patent GB-385121-A (GB)
Title: Improvements in engine starter drive
IPC: F02N15/06
Filed: 1932-01-19
Abstract: 385,121. Turning-gear. WHITNEY, M. P., 966, West Church Street, Elmira, New York, U.S.A..Jan. 19, 1932, No. 1608. Convention date, Jan. 23, 1931. [Class 7 (v).] In an engine starter in which the pinion 11 is moved axially into mesh with the engine gear 12 by the relative rotation of sets of interthreaded helical springs 13, 14 anchored respectively to a collar 15 on the starter shaft 10 and to the pinion 11, the meshing movement is limited by a collar 16 which is rigidly locked from movement in one direction on the shaft 10 by a spring ring 23 engaging grooves 17, 19 in the collar and the shaft and yieldingly resisting movement of the collar in the opposite direction. In one form, Fig. 3, the groove 17 is formed with an abrupt shoulder 18 and a tapering face 24, and the groove 19 is deep enough to allow the ring to be depressed into the groove by the face 24 and to release the collar when the latter is moved to the left in Fig. 3. A light spring 26 between the pinion and the collar 16 normally holds the pinion out of mesh with the gear 12. In a modification, Fig. 5, the release of the ring 23 is facilitated by forming the groove 19a with a deeper portion 31. As shown in Fig. 6, the collar 15b may be secured on the shaft 10b by a similar locking ring 23b engaging grooves 17b, 19b in the collar and the shaft ; and the end thrust on the ring 23b may be partly taken up by a screw 33 having a tapered point 34 seating in a depression 36 in the shaft.
Patent GB-232671-A (GB)
Title: Improvements in and relating to anti-dazzle screens and wind screen cleaning devices for vehicles
IPC: B60S1/30
Filed: 1924-01-21
Abstract: 232,671. Bristol Pneumatic Tools, Ltd., Slade, L. W., and Roy, J. Jan. 21, 1924. Anti-dazzle screens. -A combined windscreen-cleaner and anti-dazzle screen support for motor vehicles comprises a U-shaped spring clip adapted to embrace the wirdscreen, the legs 2, 3 of the clips carrying pivotally cleaning pads 4. 5 and the inner leg 2 also carrying adjustably, as by means of a screw clamp 31, a hinged frame 20 holding the anti-dazzle screen 19. When the anti-dazzle screen is not required it is turned about its hinge 30 into a horizontal position, and it can be adjusted along the length of the leg by the clamp block 31. In a modification the clip is made of strip metal and the anti-dazzle screen is pivoted to a horizontal rod bent down at its end to take into a vertical bearing bracket fixed to the inner leg of the @ the rod being adjustable in this bearing either by friction or by an adjusting screw. Fig. 6 shows a modified clamp for attaching the anti-dazzle screen, held in a frame 30, to a strip-metal clip, the split head 38 of a conical screw 39 being clamped on the leg of the clip by a wing-nut 40, which also serves to hold in position a spring 37 adapted to enter recesses in the bearing 33 of the frame 30 to retain the anti-cazzle screen in the vertical or horizontal position
Patent GB-855079-A (GB)
Title: Improvements in method and apparatus for treating textile fabrics
IPC: D06C21/00
Filed: 1958-01-17
Abstract: 855,079. Shrinking fabrics; rollers. COMPAX CORP. Jan. 17, 1958 [Feb. 4, 1957], No. 1718/58. Classes 42 (1) and 42 (2). Apparatus for shrinking fabric, in particular knitted, tubular fabric, comprises compacting mechanism 21 consisting of a driven roller 22 having a relatively smooth surface, which feeds the fabric 11 towards the rougher surface of a second roller 23 which is rotated at a speed slower than that of the roller 22. Thus in the region 88a before the nip between the two rollers the fabric is compacted and is set to its new dimensions by passing through the nip between the rollers. The difference in the nature of the surfaces of the two rollers is particularly advantageous in the treatment of tubular fabric since it helps to prevent the two layers of fabric from sliding longitudinally of each other during treatment. The distance apart of the two rollers 22 and 23 is adjustable, and they are rotated from separate driving units 24 and 38 respectively so that their speeds of rotation can be varied independently. The feeding of the fabric to the compacting zone is assisted by a shoe 74 co-operating with the roller 22, the shoe being adjustable towards and away from the roller 22, displaceable around the circumference of the roller, and tiltable about the axis of the pivot pins 70. The fabric 11 is fed to the compacting mechanism via means 12 comprising a system of spaced rollers and bars for ensuring that the fabric reaches the compacting mechanism free from wrinkles, the rollers being driven from the unit 24 so as to operate at the same speed as the feed roller 22. Similarly, a conveyer 35, for removing the treated fabric from the compacting mechanism, is driven from the power unit 38 at the same speed as that of the roller 23. The fabric may either be compacted without being previously moistened, in which case the rollers 22 and 23 are of non-resilient material such as steel and are heated, or alternatively the fabric may be moistened, by passing through a steaming station 17 for example, in which case the rollers need not be heated. In the latter case, it is convenient to use a roller 23 having a surface construction as shown in Fig. 9. The surface comprises a layer 96 from which project fine wires 97 embedded in a layer of resilient material such as rubber. As the fabric passes through the nip between the rollers 22 and 23, the layer of resilient material is compressed to expose the ends of the wires 97 which can then grip the fabric effectively, and as the fabric emerges from the nip, the resilient material expands and strips the fabric from the wires. Although the surface of the roller 22 is smooth in comparison with that of the roller 23, it is necessary that the roller should be capable of gripping the fabric to a certain extent, and to this end its surface may be knurled and etched, or may be provided with shallow, longitudinal or helical grooves as in Figs. 7 and 8 (not shown).
Patent GB-603085-A (GB)
Title: Improvements in or relating to cameras for photogrammetrical purposes
IPC: G03B17/02
Filed: 1945-01-22
Abstract: 603,085. Photographic cameras. SCOPHONY, Ltd., and LEE, H. W. Jan. 22, 1945, No. 1735. [Class 98 (i)] In a camera for photogrammetry, the lens and photographic plate are held in spaced relation by means having substantially the same coefficient of thermal expansion as either the plate or a graticule used therewith in order to compensate for the change in dimensions of the camera body and plate or graticule with temperature change. As shown, a camera body 10 of aluminium having a slot 11 to receive a dark slide (not shown) for supporting a photographic plate 12 is coupled to the camera lens by mild steel rods 13, which are secured to the body 10 at 14, are slidable in sleeves 15 and are connected at 16 to a flange on a sleeve 18 as of aluminium alloy which is slidable in the body 10. A lens tube 20 as of mild steel is fixed at 19 to the sleeve 18. The material of rods 13, the sleeve 18 and the lens tube 20 and their dimensions are such that the coefficient of expansion of these parts is substantially equal to that of the photographic plate 12 or the graticule when this is used with the plate. To obviate errors from the expansion of the lens mount 21 it may be attached to the lens tube 20 as at 22 where the rear nodal plane of the lens intersects the mount 21. In another form, the camera body is made of light-weight material in two parts, one fixed to the plate holder and the other to the lens mount. These two parts are provided with a light-tight joint between them and are relatively slidable to permit of differential expansion between the body and the spacing means. A mathematical discussion of the principles underlying the invention is given in the Specification.
Patent GB-927148-A (GB)
Title: An improved net-like lifting device
IPC: B66C1/12
Filed: 1962-01-18
Abstract: 927,148. Chain slings. K. E. NILSSON. Jan. 18, 1962 [Jan. 19, 1961], No. 1815/62. Class 78 (4). A sling for lifting material such as stones is formed of chains fixedly joined to form a chain net including an endless chain 1 (Fig. 1), adapted to form the confining edge of a bag formed by the net when lifted, and the net is such that it can be laid flat on the ground when it is to be loaded. As shown, end loops 1<SP>1</SP>, 1<SP>11</SP> serve to lift the chain. They may be connected to the spreader 6 shown in Fig. 3. The hooks 7 of the spreader may be shaped to permit the supporting loops to slide.
Patent GB-363184-A (GB)
Title: Improvements relating to liquid containers
IPC: B65D88/42
Filed: 1931-01-20
Abstract: 363,184. Tanks. WOLINSKI, K., 7, Barbarossastrasse, Berlin. Jan. 20, 1931, No. 1885. [Class 69 (i).] Separate floating bodies b are arranged between the usual floating cover a and the wall c of a tank. The bodies which mav be of wood or of metal, are weighted as at f to prevent undue rotation, while the cover a may have an extension e to support a float b in the event of its sinking. The bodies may be constructed of, or coated with, non-sparking material, such as zinc or aluminium.
Patent GB-866418-A (GB)
Title: Phenoxazine derivatives
Filed: 1959-01-19
Abstract: The invention comprises: (a) compounds of the general formula: <FORM:0866418/IV (b)/1> (wherein Ac represents an acyl radical, A represents a straight or branched chain alkylene radical of 1-6 carbon atoms, and R and R1 represent straight-chain alkyl radicals which may form, with the nitrogen atom, a 5- or 6-membered heterocyclic ring which may contain an additional nitrogen or oxygen atom and, when a piperazine ring, may be Nsubstituted by an alkyl, cyanoalkyl or hydroxyalkyl radical of 1-6 carbon atoms) and their acid addition salts and quaternary ammonium compounds ; (b) the preparation of the bases of (a) by the following processes: (i) reacting a compound of the general formula:  <FORM:0866418/IV (b)/2> with an appropriate alkali metal compound to form its alkali metal derivative and reacting this, without isolation, with a reactive ester of a basic alcohol HO-A-NRR1; (ii) heating an ester of the general formula:  <FORM:0866418/IV (b)/3> or an acid addition salt thereof to about 140-222 DEG C.; (c) the combination of process (ii) with the preparation of the esters by reacting a compound of the second general formula above with phosgene and reacting the resulting phenoxazine-10-carbonyl chloride with a basic alcohol HO-A-NRR1; (d) the preparation of 3-acetyl-10-g - (N1-b -hydroxy- and -cyano-ethylpiperazyl-N)-propylphenoxazine by refluxing 3-acetyl-phenoxazine and 1-bromo-3-chloropropane in dioxan in the presence of sodamide to form 3-acetyl-10-(g -chloropropyl)- phenoxazine and boiling this with N-b -hydroxy- or -cyanoethylpiperazine in xylene.  In process (i) the basic alcohol ester is preferably a halide Hal-A-NRR1 (wherein Hal represents a chlorine, bromine or iodine atom) in the form of its hydrohalide salt (using an additional molecular proportion of alkaline condensing agent).  In either process the carbonyl group may initially be functionally converted and subsequently liberated.  The compounds (a) are useful as ganglion-blocking, hypotensive and potentiating agents.
Patent GB-785829-A (GB)
Title: Improvements in or relating to machines for broadcasting seed, fertilizer and other granular or powdered materials
IPC: A01C17/00
Filed: 1955-01-21
Abstract: 785,829. Powder distributers. TEAGLE, W. T. Jan. 5, 1956 [Jan. 21, 1955 ; Oct. 25, 1955], Nos. 1944/55 and 30517/55. Class 6(1). In a machine for broadcasting powdered materials which are carried by a hopper and discharged through an outlet in the base of the hopper into a distributer that rotates about a vertical axis, the outlet is offset from the axis of the distributer and is formed from parts that are adjustable to vary the size of the opening, the parts being together angularly adjustable about the axis of the distributer so as to vary the radial disposition of the outlet. As shown, a plate 5 is adjustably mounted on the bottom of the hopper by means of bolts 6 which engage in arcuate slots 7. A sliding panel 10 is mounted on one side of the plate and may be drawn back to leave a slot 11 forming the outlet for the' hopper. The position of the panel 10 is adjusted by means of a lever 15. The length of the outlet 11 is varied by means of a masking plate 25 provided with a pin 27 which engages in any one of a series of holes 26 in the plate 5. The distributer comprises a hub formed with a pulley to receive a belt drive, a triangular plate 4c being bolted to the hub and carrying a number of ribs or vanes 4d. In a modification, the masking plate may be provided with a bar by means of which the position of the masking plate may be adjusted for a further modification the masking plate may be replaced by a plate which may be moved longitudinally of the slot to vary the size of the opening. In the modification shown in Fig. 5, two discs 29, 30 are each formed with an arcuate slot 29a, 30a respectively. The discs are mounted face to face over a circular opening 31 in a plate 32 welded to the bottom of the hopper. The discs are clamped in position by lugs 33 and are adjusted relatively to each other so that the slots form an arcuate outlet which may be adjusted in size by rotating the discs 29, 30. Specification 747,274 is referred to.
Patent GB-436939-A (GB)
Title: Improvements in and relating to hard metal compositions
IPC: C22C29/06
Filed: 1934-01-19
Abstract: Tantalum carbide may be made by firing a mixture of tantalum and gas coke at from 1550 to 1600 DEG  C. for about eight hours in a closed graphite tube in a hydrogen furnace.ALSO:A mixture is prepared of a carbide of an element of the sixth group of Mendelejeff's periodic table with a carbide of an element of the fifth group together with a binder metal such as cobalt, manganese or any element of the iron group alone or with a metal of the sixth group.  The sintered product is suitable for making tools which in the form of tool bits may be secured to supporting shanks by copper brazing.  A preferred composition consists of tungsten carbide 87,3 to 8 per cent, tantalum carbide 8 to 87,3 per cent, and 3 to 20 per cent binder.  Tantalum carbide may be made by firing a mixture of tantalum and gas coke at from 1550 to 1600 DEG  C., for about eight hours in a closed graphite tube in a hydrogen furnace.ALSO:A mixture is prepared of a carbide of an element of the sixth group of Mendelejeffs periodic table with a carbide of an element of the fifth group together with a binder metal such as cobalt, manganese, or any element of the iron group alone or with a metal of the sixth group.  The sintered product is suitable for making tools which in the form of tool bits may be secured to supporting shanks by copper brazing.  A preferred composition consists of 87,3-8 per cent of tungsten carbide 8-87,3 per cent of tantalum carbide, and 3-20 per cent binder.
Patent GB-406857-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K29/06
Filed: 1933-01-21
Abstract: 406,857. Motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Jan. 21, 1933, No. 2032. Convention date, Jan. 22, 1932. [Class 35.] Machines with vapour and like rectifiere in place of commutators.-In a repulsion motor, tappings on the induced windings are connected to grid controlled discharge tubes arranged in parallel pairs oppositely connected with their other ends connected together, the connection between the windings and tubes being direct, or alternatively through brushes and two commutators which have a low number of segments. In the form shown, the primary rotor winding f is fed by slip rings a, b and the stator has eight tappings I-VIII each connected to a pair of discharge tubes connected in parallel in opposite directions, the outer ends of the tubes being connected together by a connection T. An auxiliary transformer is provided which has a secondary winding for each tube, the centre point of which is connected to the cathode k, and the grids are controlled by switches u actuated by a device S on the motor shaft. By connecting the winding tappings to a pair of commutators each with four segments connected in turn to tubes through brushes, the number of pairs of discharge tubes may be reduced to four, but in this case the tapped winding must be on the rotor. Specification 406,852 is referred to.
Patent GB-245287-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B31/075
Filed: 1925-01-24
Abstract: 245,287. Imray, O. Y., (Farbwerke vorm. Meister, Lucius, & Br³ning). Jan. 24, 1925. Disazo dyes.-Azo dyes are, produced, in substance or on the fibre, by coupling diazotized benzaldehydeazo-a-naphthylamines with 2 : 3- oxynaphthoic arylides. The dyeinge on the fibre are chiefly black, reddish-black, and greenishblack, and their fastness may be improved by treatment with a copper salt. The dysetuffs may be converted into water soluble compounds by treatment. with bisulphite. The diazo components are obtained by coupling diazotized aminobenzaldehydes with alpha-naphthylamine or its derivatives coupling in the 4-position. According to examples a dyestuff is produced in substance from m-benzaldehydeazo-alpha-naptylamine and 2 : 3-oxynaphthoic-#-naphthylamide, and cotton is dyed by impregnating with 2 : 3-oxynaphthoicalpha- or #-naphthylamide and developing with diazotized m- or p-benzaldehydeazo-a-naphthylamine. Specification 203,032 is referred to.
Patent GB-138120-A (GB)
Title: Improvements in sewing machines
IPC: D05C9/06
Filed: 1920-01-24
Abstract: 138,120. Rooker, J. G. F. Aug. 6, 1917, [Convention date]. Feed by clamps.-A work-clamp 8 is moved for stitching letters or the like for marking fabrics by means of a cam-groove 2 of varying depth. The clamp-holder is integral with a pin 4 spring- pressed upon the cam and carried in a casing 6 swinging about a vertical pivot 9. The connexion between the pin 4 and the work-clamp may be a linkwork, the members of which can be varied to vary the size of the stitched design. The drum 1 comprises several cylindrical bundles of segmental blocks each having a portion of a camgroove cut in its surface, and desired forms of cam-groove can be obtained by suitably grouping the segmental blocks.
Patent GB-1504331-A (GB)
Title: Measurement of gaps
IPC: G01B11/14
Filed: 1976-01-16
Abstract: 1504331 Photoelectric measurement of gaps A R L ROSS 16 Jan 1976 [20 Jan 1975] 2287/75 Heading G1A. The width of a gap is measured by determining the attenuation of a light beam caused by two members inserted in the gap and whose relative positions depend of the gap width. In Fig. 1 the relative positions of members A1 and A2 vary with the gap, influencing the passage of light from fibre Fl to fibre F2. In Fig. 2 members A11 and A2 have a separation depending on the gap, and this influences the passage of light between the fibres. In Fig. 3A the fibres are themselves displaced away from a co-axial positions by an amount depending on the gap; a suitable means for displacing the fibres is shown in Fig. 3B (not shown) where arms A13, A22 are inserted into the gap G and the passage of light from one fibre to the other varies with the arm separation.