baber/WOPTO huggingface dataset:
Patent GB-856837-A (GB)
Title: Viewfinder or rangefinder-viewfinder for a photographic camera for use with interchangeable objectives
IPC: G03B13/02
Filed: 1958-03-03
Abstract: 856,837. Viewfinders; photographic cameras with view- and range-finders. AGFA A. G. March 3, 1958 [March 19, 1957], No. 6772/58. Classes 97(1) and 98(1) A viewfinder for a camera with interchangeable objectives, including a plate having lighttransmitting apertures or sets of apertures indicating the field of view of different objectives is provided adjacent the plate with one or more pairs of oppositely movable blades for masking at will one or more apertures or sets of apertures. The masking blades may be strips, e.g. as shown at 3, or plates with slot apertures linearly displaceable against spring action by the camming action of a rotatable oval member 4 or may be pivoted blades which may have extensions to form a pair of shear-like members. The plate carrying the field-indicating apertures may be located between the pupils of a short home base rangefinder having as a parallax-compensator a displaceable lens 16, the mirror 18 being apertured for passage of the reflected rangefinder beam and the lens 19 being either apertured or having a central plane ground portion or with the lens 16 producing a parallel beam.
Patent GB-1120302-A (GB)
Title: Apparatus for automatically cutting film negatives
Inventor: SAW PETER DOREE
IPC: G03D15/04
Filed: 1966-02-16
Abstract: 1,120,302. Cutting apparatus. FRANCIS FOLD Ltd. 16 Feb., 1967 [16 Feb., 1966], No. 6775/66. Heading B4B. Apparatus for automatically cutting film negatives comprises means, viz. a drive roller 5, Fig. 2, for moving a film 4, having apertures 1, Fig. 1, at spaced points where it is to be cut, between ultrasonic transducer heads 11, 12. A beam of ultrasound passes through an aperture 1 and is received by the head 12 to energize electronic means to control a guillotine cutter 15. The film is gripped by an armature 9 co-operating with a solenoid 10 and cut, when stationary, by the solenoid-operated guillotine 15. In operation, ultrasound from a generator 13 and transducer 11, Fig. 5, distorted on passing through a hole 1, is fed via a tuned amplifier 17 to a discriminator/trigger 18, which distinguishes a " cutting " pulse from the continuous wave resulting when the film clears the transducer heads, and prevents the guillotine operating. A delay circuit 19 and gate circuit 20 prevents guillotine operation until a hole 1 is directly below the blade; simultaneously a brake pad (not shown) is operated to stop the film, control being effected respectively by guillotine and transport stop pulse generators 21, 22. The solenoid 10, energized by generator 21, raises an arm bearing a jockey pulley 6 to stop the drive, and grip the film against the armature 9. A counter 25 registers each hole, but is preset to allow guillotine operation only when the preset number on the counter is reached.
Patent GB-1029036-A (GB)
Title: Water-soluble azo dyes
Inventor: BLASS ULRICH
IPC: C09B62/008
Filed: 1963-02-20
Abstract: The invention comprises water-soluble azo dyes of the formula <FORM:1029036/C4-C5/1> wherein A represents the radical of a coupling component, R an aliphatic, araliphatic or aromatic radical which may be substituted, X an alkyl or cycloalkyl radical and in which the group X-O-stands in the 4- or 5-position and the nucleus Q may additionally contain a nucleophilic substituent, e.g. an alkyl radical containing 1 to 5 carbon atoms and a process for the preparation thereof which consists in reacting 1 mole of a water-soluble azo dye of the formula <FORM:1029036/C4-C5/2> wherein A, X and Q have the above meanings or 1 mole of a diazo component of the formula <FORM:1029036/C4-C5/3> wherein X and Q have the above meanings (a) with at least 1 mole of a compound of the formula R-CO-NH-CH2-OH where R has the meaning given above or (b) with at least 1 mole of a compound of the formula R-Z where R has the above meaning and Z represents a -CN or -CONH2 radical and at least 0.5 mole of a symmetrical dihalogenodimethyl ether, in the presence of an acid condensing agent, upon which the reaction product, when a diazo component of the third formula above is used, is diazotized and coupled with a coupling component.  The radical R may contain a reactive halogen atom or a multiple linkage which can be split to form addition compounds. The dyes are suitable for dyeing leather, wool, silk and synthetic polyamide fibres, e.g. nylon, whilst those dyes which contain reactive halogen atoms or saponifiable sulphuric or sulphonic acid esters are suitable for dyeing, padding and printing cellulosic fibres and fibres of regenerated cellulose.  In an example 1 - amino - 4 - methoxy - 5(chloro - acetylamino-methyl) - benzene - 2 - sulphonic acid is diazotized and coupled with 1-(21,51-dichlorophenyl) - 3 - methyl - 5 - pyrazolone - 41 -sulphonic acid to obtain a yellow dye.  Many additional products are defined.ALSO:1 - Amino - 4 - methoxy - 5 - (chloro-acetyl-aminomethyl) - benzene - 2 - sulphonic acid is obtained by reacting 1-amino-4-methoxybenzene-2-sulphonic acid with chloracetamide and dichlorodimethyl ether in sulphuric acid solution.
Patent GB-859990-A (GB)
Title: New monoazo triazine dyestuffs
Inventor: TILLEY COLIN GEORGE
IPC: C09B62/085
Filed: 1958-03-26
Abstract: The invention comprises dyes, which in their free acid form, are of formula:  <FORM:0859990/IV (c)/1> where A is a 1- sulpho -2- naphthyl group which may contain additional SO3H groups, X is H, Hlg or SO3H one Y is H or SO3H and the other:  <FORM:0859990/IV (c)/2> where Z is Hlg, n is an integer and Q is a substituent of at most 13 C atoms bound to the triazine nucleus via a C, N, O or S atom. The dyes may be made by coupling an appropriate diazotised naphthylaminesulphonic acid with the required triazine component or by condensing appropriate triazine halides and azo dyes. Compounds containing Q bound to the triazine nucleus via N may be made by treating appropriate azo-triazine dyes, where Q is Hlg, with the required amine or ammonia.  Indicated for A are 1- mono-, 1, 5- di- and 1, 5, 7- trisulphonaphthyl groups.  Preferably n is 2 to 5, especially 2 and Q is a lower alkyl group or a sulphonated phenyl group. Representative of specified components corresponding to the naphthol sulphonic acid moiety of the dye molecule are 2- amino -5- naphthol -7- mono-and 1, 7 -di-, 2- amino -1- chloro -8- naphthol -6-mono-, 2- b - hydroxyethyl- and -butylamino -8-naphthol -6- mono- and 2- methylamino -5-naphthol -7- mono- and -8- naphthol -6- mono-sulphonic acids the last two compounds being especially preferred. Representative of specified triazine components are 2- methyl-, -cyclohexyl-, -dodecyl-, -21- methoxyphenyl- and -benzyl- 4, 6-dichloro -striazines and compounds obtained by treating cyanuric chloride with methyl-, di- (b -hydroxyethyl)-, benzyl- and dodecylamines, #s-toluidene, aniline -psulphonic acid, pamino-acetanilide, N- ethylaniline, piperidine, m-aminobenzotrifluoride, 2- naphthylamine, m-aminobenzoic acid, thio -b - naphthol, pthiocresol, pnitrophenol and propanol- 2.  The dyes dye cellulose textile materials in conjunction with treatment by an acid-binding agent, see e.g. Specification 797,946 red to orange shades being obtained. Examples are provided of the preparation of the dyes and their use in dyeing cellulosic materials.  The Provisional Specification relates to dyes, which in their free acid form contain at least 2 SO3H groups, and are of the above formula where A is an aryl residue free from hydroxyl or amino groups.  A is indicated to be a benzene or naphthalene residue and may contain substituents such as bromine, nitro, benzamido, methyl, ethoxy, phenoxy, carboxy and sulphonic acid groups. Specifications 837,990 and 838,340 also are referred to. p
Patent GB-850506-A (GB)
Title: Halogenated cyclic ethers useful as insecticides and process for preparing same
IPC: C07D307/94
Filed: 1959-02-27
Abstract: The invention comprises compounds of the formula : <FORM:0850506/IV(b)/1> where a, b, c, d are chlorine, bromine or hydrogen, and Y is chlorine or bromine.  These compounds may be prepared by reacting allyl alcohol with a halogenated cyclopentadiene of formula :  <FORM:0850506/IV(b)/2> in the presence of at least one mole of alkaline condensing agent, such as alkali metal hydroxide or allyloxide, per mole of halogenated cyclopentadiene.  Solvents or diluents may be used. The reaction temperature is preferably below about 100 DEG C.  Starting materials : hexabromocyclopentadiene is prepared by bromination of cyclopentadiene ; chlorinating hexabromocyclopentadiene produces a mixed reaction product from which 1,2-dibromo-3,4,5,5-tetrachloro- and 2,3-dibromo-1,4,5,5-tetrachloro-cyclopentadiene may be obtained by fractionation.  The compounds of the invention may be used as insecticides (see Group VI).ALSO:Insecticidal compositions comprise a compound of formula:  <FORM:0850506/VI/1> where a, b, c and d are hydrogen, chlorine or bromine and Y is chlorine or bromine, in admixture with or dispersed in a suitable carrier, such as a wettable powder suspension.  The compositions may be e.g. dusts, oil sprays, aerosols, or water emulsions.
Patent GB-512450-A (GB)
Title: Improvements in or relating to the production of photographic images and to light filters used in the production of such images
IPC: G03B27/16
Filed: 1938-03-04
Abstract: 512,450. Compensating photographic exposure; colour filters. BLOCH, O. F. March 4, 1938, No. 6888. [Classes 97 (i) and 98 (i)] The unevenness of illumination of the image plane produced by wide angle or other lenses is compensated by a graduated filter corresponding in density to the illumination and placed directly in front of the sensitive surface. The filter may be produced by casting a solution of a light absorbing medium or a dispersion such as Indian ink or colloidal metal or finely divided metal salts, with, if desired. colour-filter dyes, in a setting medium such as gelatin or collodion in a shallow mould of conical, pyramidal, paraboloidal, spherical or other form. In an example the preparation of a coned gelatin filter containing Nigrosine HS. Toliudine Blue (Agfa), and Indian ink is described. Reference is made to a known process of correcting copying lens deficiencies by covering the copy material with filter comprising a photographically-produced silver image of varying density.
Patent GB-678500-A (GB)
Title: Machine movable in all directions for driving piles and the like
IPC: E02D7/16
Filed: 1951-03-22
Abstract: 678,500. Pile drivers. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON. March 22, 1951. [March 23, 1950] No. 6926/51. Class 68 (ii). The pile guides 2, Fig. 1, and driving mechanism D of a pile driver are carried on a platform 1 mounted for limited rectilinear movement along a frame 7 having girders 8, 9 resting on the ground. The platform is connected by four racks 31, Fig. 3, and guides 33 (only two of each of which are shown) to a frame 26 having rollers 25 engaging a circular track 24 on a plate 20 whereby the frame 26, platform 1 and frame 7 can be rotated about the vertical axis of a jack 14. On operation of the jack the plate 20 is lowered (taking frame 26 with it, but platform 1 and frame 7 remaining in position) until it contacts with the ground. Further operation of the jack raises the platform 1 and frame 7, and the plate 20 then takes the whole weight of the apparatus. Any tendency to unbalance is rectified by the racks 31 which are geared together by quadrants 34, 38, pinions 36, cranks 43, 44 and coupling rods 45 so that any tendency to movement of one rack produces a rectifying movement of the others. When the plate 20 is retracted as shown in Fig. 1 the weight of the apparatus is taken by the frame 7 and girders 8, 9.
Patent GB-761797-A (GB)
Title: New quinoline derivatives
Inventor: TON HERBERT CLARE CARRING
IPC: C07D215/42
Filed: 1954-03-10
Abstract: The invention comprises bis-quaternary salts of the quinoline derivatives claimed in Specification 761,796 and their preparation by heating the abovementioned derivatives with a quaternary salt forming agent RZ wherein R is an alkyl radical and Z is an anionic group, conveniently in a suitable solvent such as 2-methoxyethanol or nitrobenzene.  The anion Z may be replaced by a different anion by treatment of the bis-quaternary salt with a salt containing the second anionic group.  Suitable quaternary salt-forming agents RZ are methyl p-toluenesulphonate, methyl iodide and dimethyl sulphate and suitable salts containing an anionic group are the silver halides and the alkali metal chlorides.  Examples describe the preparation of di - (4 - amino - 1 : 2 - dimethyl6 - quinolinium) amine di - p - toluenesulphonate and the corresponding dichloride, di-(4-methylamino - 1 : 2 - dimethyl - 6 - quinolinium) amine di-iodide, di-(4-amino-1 : 2-dimethyl-6-quinolinium) ether dichloride, di - (4 - amino1 : 2 - dimethyl - 6 - quinolinium) methane dimethosulphate, di - (4 - amino - 1 : 2 - dimethyl6 - quinolinium) sulphide di - methosulphate and di - (4 - dimethylamino - 1 : 2 - dimethyl - 6-quinolinium) amine di-methosulphate.
Patent GB-1444449-A (GB)
Title: Linear balanced free piston machines
IPC: F01B7/04
Filed: 1974-02-15
Abstract: 1444449 Direct acting engines A BRAUN 15 Feb 1974 [16 Feb 1973] 7067/74 Headings F1B and F1N A balanced linear free piston machine comprises a first movable assembly 12 supported for reciprocating movement with its centre of gravity moving along an inner longitudinal axis of the machine, at least two movable counterbalancing assemblies 24, 26 each supported for individual reciprocating movement with their respective centres of gravity moving along respective outer paths, separate synchronizing lever assemblies 37, 49 inter-connecting each counterbalancing assembly with the first movable assembly 12, at least one power cylinder 14 having a power piston 13, and at least one energy absorbing device delivering useful output energy. The power piston 13 may form part of the first movable assembly 12 and the compressor pistons 27, 32 may form part of the counterbalancing assembly 24, 26, as shown. A piston 21 and chamber 23 may serve as an energy absorbing device, a scavaging device or a bounce chamber. More than two counterbalancing assemblies may be provided each spaced equi-angularly around the inner longitudinal axis of the machine Figs. 2, 3, 4 and 5, (not shown). The assemblies may reciprocate along paths which slant with respect to the longitudinal axis. Not all of the counterbalancing assemblies need be provided with energy absorbing devices. Some may comprise balancing weights only Fig. 6, (not shown). The inner movable assembly may contain two power pistons (222, 223), Fig. 8, (not shown) with one of the counterbalancing assemblies (229) containing a pair of compressor pistons (231, 232). The other counterbalancing assembly (268) includes balancing weights (269, 271). The arrangement, Fig. 7, (not shown), comprises a number of power cylinders and associated energy absorbing devices located around an inner axis along which a counterweight reciprocates.
Patent GB-293888-A (GB)
Title: Improvements in surgical splints
IPC: A61F5/058
Filed: 1927-03-14
Abstract: 293,888. Collender, K. G. F. March 14, 1927. Splinis; tension apparatus; fractured limbs, supports for.-A surgical splint of the Thomas type comprises a ring having at substantially diametrically opposite points a pair of projecting sockets which are cylindrical or tubular and detachably receive the limbs of a yoke or extensions of such limbs, the ends of the limbs being arranged to fit into the sockets to form a rigid end-to-end connection or such ends being connected to the limb extensions by connectors of socket formation affording a rigid end-to-end connection. The splint is formed of detachably connected units some of which are replaceable by units of different form or of different size to vary the form or the dimensions of the splint. An arm splint may comprise an arm ring 2, side rods 3 detachably and rotatably connected to the diametrical sockets 5 as by screwing, and a yoke 4 connected to the side rods as by the engagement of split and coned ends 16, 17 of the rods with splitended and internally coned sockets 14 on the yoke. For a tumbler position setting the side rods are replaced by forward and rear L-shaped rods; and for a right-angle flex, as shown in Fig. 6, they are replaced by inner and outer rods 30 and 31, 32 respectively with an elbow bend preferably comprising a backwardly and downwardly inclined limb 35, a horizontal limb 36, and an upwardly and forwardly inclined limb 37 shaped to bring the mid points of the limbs 36 approximately in the same plane as the sockets 5. A leg splint may comprise a thigh ring 43, Fig. 7, with swivelling sockets 46 for the reception of the ends of a yoke 44 which may carry a splint rest 57 and a pivoted. knee flexion yoke 58 with foot-rest 59: or the footrest may be clamped to the main yoke 44. None of the units for any of the splints is bent in more than one plane and accordingly an outfit of all units for the various splints in a range of sizes can be packed flat. The parts are notched as at 10, 12, 13, 40, 55, 56 for the retention of bandages &c. According to the Provisional Specification the leg splint may comprise a thigh ring, side rods, clamping connecting sockets and an end yoke. This yoke may be in the form of a U-piece with inwardly curved bridge the corners of which are bent outwards to increase the length; or it may provide a stand for the end of the splint, in which case it is formed of a single piece of rod which is bent to form a base with downwardly projecting feet at the ends, bent up to, and crossed at, the bridge, and then bent at right angles into linewith the side rods.
Patent GB-589272-A (GB)
Title: Phonograph pick-up-device
IPC: H04R1/16
Filed: 1945-03-21
Abstract: 589,272. Phonograph pick-ups. PHILCO RADIO & TELEVISION CORPORATION. March 21, 1945, No. 7145. Convention date, March 31, 1944. [Class 40 (iv)] [Also in Group XXXVIII] In a moving-coil pick-up for lateral-cut recordings, in which the moving coil 5 is mounted on resilient members 11 and 12 on a circular polepiece 3 within two arcuate polepieces (not shown) which complete the magnetic gap, the coil is vibrated torsionally about a diametrical axis 7 by a stylus 13 which passes freely through the apex 5b of a conical former 6 carrying the coil 5, the inner end of the stylus 13 being embedded in a piece of resilient material 15 in the circular polepiece " 3. Unwanted longitudinal vibration of the stylus 13, caused by a feature of lateral] cut recording known as " pinch effect," is thereby allowed to take place independently of the coil 5. The aperture 16 in the apex 6b of the conical former 6 is made V-section to prevent lost motion, in a lateral direction, between the stylus 13 and the aperture 16, while the advantage of independent longitudinal motion is still retained. It is found that the cut-off point for the higher frequencies varies according to the amount of compression of the resilient material 15 about the end of the stylus 13, in the polepiece 3. Means are therefore provided to adjust the compression by a collet 19 which holds the resilient material 15, and is thereby expanded and contracted by manual operation of the knurled nut 22. Specification 586,979 is referred to.
Patent GB-1509662-A (GB)
Title: Pressure pad means
IPC: G06K7/015
Filed: 1976-02-24
Abstract: 1509662 Pressure pad NCR CORP 24 Feb 1976 [4 April 1975] 7193/76 Headings G4M and G5R A pressure pad assembly for use in a cheque sorting machine or for holding tapes, webs, documents or cards against a read head has a support 50 having several spaced projections 52, 56, 54 each of which has an inclined surface 53. A compressible member 62, 64 is arranged against a backing plate 60 which is secured to the support. A flexible member 74, 76 of sheet material is arranged between adjacent projections contacting the inclined surfaces so that it forms a curved surface extending between the projections and so that the compressible material is between the flexible material and the backing plate. The document is moved past read and record heads by endless belts (Fig. 1, not shown) and a pressure pad is provided for each head.
Patent GB-1131162-A (GB)
Title: Oxidation catalyst and process
IPC: C07C51/25
Filed: 1967-02-15
Abstract: 1,131,162. Oxidation process. B. F. GOODRICH CO. 15 Feb., 1967 [16 Feb., 1966], No. 7218/67. Addition to 1,038,643. Heading C2C. [Also in Division B1] A process for making acrolein and acrylic acid from propylene and methacrolein and methacrylic acid from isobutylene comprises passing vapours of propylene or isobutylene respectively and an oxygen-containing gas over a catalyst comprising MnMo0 4 , TeO 2  and Mn 2 P 2 O 7  at 300-550‹ C. The vapours may include steam or an inert saturated hydrocarbon. The process may be effected in a fixed or fluidized bed, at atmospheric or higher and lower pressures. Comparative examples are provided.
Patent GB-1131848-A (GB)
Title: Tray for the reception of foodstuffs
Inventor: TAYLOR PAUL MARTINDALE
IPC: B65D81/26
Filed: 1967-02-15
Abstract: 1,131,848. Trays. PAUL TAYLOR DEVELOPMENTS Ltd. 25 Sept., 1967 [15 Feb., 1967], No. 7220/67. Heading B8P. A tray 10 for the reception of foodstuffs is provided with a removable false bottom 14 which overlies a bed 18 of liquid-absorbent material. The bottom 14 is provided with channels along which moisture from the contents can flow to an opening 17. The bed 18 can be formed of absorbent paper or expanded polystyrene and may be impregnated with a sterilizer or a deodorant.
Patent GB-541526-A (GB)
Title: Spring suspension, particularly for motor cars
IPC: B60G3/28
Filed: 1940-04-22
Abstract: 541,526. Vehicle spring suspensions. FERREIRINHA, J. D'A. April 22, 1940, No. 7221. [Class 108 (ii)] In a spring suspension for motor cars each road wheel is connected to the frame 1 by at least one pair of springs 2 or arms 5, Figs. 1 and 2, arranged obliquely and forming a V with its apex towards the wheel, the ends of the springs and/or arms being connected to the wheel axle support 9 by shackles 13 or equivalent means which are movable in the direction of the length of the springs or arms. The wheel is thus able to move up and down in a vertical plane without altering its horizontal distance from the frame. In the construction shown in Figs. 1 and 2 upper springs 2 are combined with lower arms 5, but in the construction shown in Fig. 11 the springs 2 are replaced by a single transverse spring 18 connected by a shackle to the wheel support 9, the lower arms 5 being retained. The ends of the springs or arms may slide in guides in the wheel supports or they may be connected thereto by eccentrics.
Patent GB-374467-A (GB)
Title: Improvements in the purification of combustion gases
IPC: B01D53/50
Filed: 1931-03-10
Abstract: Combustion gases are freed from oxides of sulphur by an aqueous suspension of calcium hydroxide or carbonate with formation of neutral calcium sulphite and some calcium sulphate, the calcium salts are removed by settling, and the residual liquor comprising a solution of sulphite and/or sulphate returned to the process after addition of calcium hydroxide or carbonate.  In carrying out the process the suspension is preferably run in the form of films over surfaces in a vessel through which the gases are passed, and settling effected in a separate vessel.  Formation of calcium sulphate is minimized by excluding air and avoiding the presence of catalysts for the oxidation of sulphur dioxide, and formation of calcium bisulphite prevented as far as possible by using excess of base and ensuring efficient clarification of the liquor during settling.  Causticizing mud may be used in preparing the aqueous suspension, and the heat of the circulating liquor is preserved as far as possible, as by using hot water for make-up purposes.  A small portion of the liquor may be removed from circulation continuously or intermittently, and may if desired be oxidized by heated air before disposal.