baber/WOPTO huggingface dataset:
Patent GB-875202-A (GB)
Title: Improvements in or relating to diaphragm aperture control arrangements in reflex cameras
IPC: G03B19/12
Filed: 1957-11-28
Abstract: 875,202. Photographic cameras. KAMERAUND KINOWERKE DRESDEN VEB. Nov. 28, 1957 [Dec. 14, 1956], No. 37075/57. Class 98(1) In a reflex camera, having coupled film feed and shutter setting, a lever mechanism is actuated on release of the shutter, to operate the pressure ram controlling the aperture of a pre-selectable aperture diaphragm so that the diaphragm takes up its preselected aperture. When using the fully automatic types of diaphragm the lever mechanism is preferably arranged so as not to be returned to the preexposure position should the finger be taken off the shutter release button before the exposure is complete. As shown in Figs. 1, 4 and 6 lever 8 has locking arm 10 and a spring connection with co-pivotal lever 14 so that lost-motion between the levers flexes the spring 16. On depressing shutter release button 5, levers 8, 14 and 18 are turned about their pivots 7 and 20, respectively, and are retained in this position by the engagement of locking arm 10 with locking lever 11 until the trailing blind of a roller blind shutter runs out and cam 39 co-operates with lever 11 to release the lock and allow the levers to return to their pre-exposure position. The diaphragm is released to take up its pre-selected aperture as slide 23 moves pressure ram 4 into lens mount 2a. The diaphragm may be returned by a spring to the fully open position on release of ram 4 or, alternatively, may be opened manually. The travel of slide 23 can be varied by varying the position of pin 22 along a slot in lever 18. Figs. 1 and 6 show arm 55 of lever 8 engaging a self-timer mechanism driven by spring 51 and having escapement 47, 48. On winding spring 51 by lever 49, end 59 of lever 8 skirts round profile cam 58 and nose 56 engages edge 57 to retain the self-timer in the fully wound condition. The timer is released by button 5 and lever 8 is moved to effect release of the shutter and diaphragm as nose 56 rides on the profile of cam 58. Formation 54 at the end of arm 55 prevents button 5 from completing the shutter release when the self-timer is wound. In another form (Figs. 7 and 9, not shown) control of the diaphragm is effected by a spring when on release, a lever is freed from locking lever 11 by a pin on lever 8. Ram 4 is thus freed to move outwardly as a spring moves the diaphragm to its pre-selected aperture. On setting the shutter, an eccentric turns a further lever to move the lever clockwise and return ram 4 to fully open the diaphragm against the action of the spring tending to close it. This form may be adapted to a lens mount of which the ram 4 is pushed inwards to set the pre-selected aperture (Figs. 8 and 10, not shown). In an adaptation of Figs. 1 and 4 (Fig. 5, not shown) a further lever is provided to reverse the action and so operate a lens mount of the kind of Figs. 7 and 9. The levers for both forms of lens mount are designed to use the same bearing points so that a camera can be adapted to a different type of diaphragm operation merely by replacing the appropriate levers.
Patent GB-804617-A (GB)
Title: Procedures and compositions for the treatment of flour
IPC: A21D2/24
Filed: 1956-12-05
Abstract: Improved bakery products such as bread are obtained by incorporating esters, unsubstituted or alkyl substituted amides, ester-amides and amidines of azodicarbonic acid, e.g. azodicarbonamide H2N.OC.N : N.CO.NH2, in the flour or dough.  The azodicarbonic acid derivatives are employed in concentrations of 50-500 parts per million of the flour: they may be dispersed preliminarily in finely divided carriers such as flour, maize starch and ammonium, alkali metal and alkaline earth metal chlorides, sulphates and phosphates; such preparations may contain the yeast-nutrient salts calcium sulphate, sodium chloride and ammonium chloride or the flour-bleaching agent benzoyl peroxide.
Patent GB-832434-A (GB)
Title: Improvements relating to stackable pallets, stillages, and the like
Inventor: STEWART GAVIN BURTON
IPC: B65D19/02
Filed: 1957-11-29
Abstract: 832,434. Stacking pallets. TUBEWRIGHTS Ltd. Sept. 15, 1958 (Nov. 29, 1957], No. 37301/57. Class 78 (4). Inverted V-ridges 1A at the tops of the posts 1 of a pallet for engagement with corresponding recesses 1B at the bottoms of the posts of a pallet above in a stack are arranged so that the ridges on adjacent posts are at right angles. The posts are preferably of tubing of rectangular, square or circular in section.
Patent GB-850166-A (GB)
Title: Improvements in and relating to rotary drive mechanisms
Inventor: MORRIS FREDERICK
IPC: G01F15/06
Filed: 1955-12-29
Abstract: 850,166. Speed and rate indicators. UNITED GAS INDUSTRIES Ltd. Dec. 31, 1956 [Dec. 29, 1955], No. 37344/55. Class 106 (3). [Also in Group XXIV] A rotary drive mechanism for instruments such as maximum demand indicators comprises two pinions 14, 16, Fig. 1, and a rotary sleeve 18, all coaxially disposed on a common spindle 15, the pinions 14, 16 having abutting end faces adapted to act as friction clutch surfaces. A spring 17, acting on the sleeve 18, presses the pinions 14, 16 together so that motion from a wheel 22 is transmitted through the pinions 16, 14 to a wheel 13 secured to a shaft 8 carrying a pointer 11. At predetermined intervals a solenoid operated magnet 23 causes an arm 28 to move the sleeve 18 away from the pinion 14 and thus release the frictional engagement between the pinions 16, 14. The wheel 13 is then returned to a zero position by spring means or by a toothed wheel 35 weighted as at 36. The pointer 11 displaces a maximum demand pointer 4. In Fig. 2, the driving wheel 22 meshes with a wheel 40 loosely mounted on a sleeve 18 on a shaft 8, and between two clutch discs 41, 42. The disc 41 is secured to the shaft 8 whilst the disc 42 is integral with the sleeve 18. A spring 17 normally acts on the sleeve 18, and thus the disc 42, to press the wheel 40 against the disc 41 and so cause the driving wheel 22 to turn the pointer 11. At predetermined intervals a solenoid operated magnet 23 causes a lever 28 to move the clutch disc 42 away from the wheel 40 and thus allow the pointer shaft 8 to be returned to zero by spring means or by a weighted and toothed segment 43 geared to a wheel 44 on the shaft 8. The pointer 11 displaces a maximum demand pointer 4.
Patent GB-1472783-A (GB)
Title: Diffused light reflecting screen for use when taking photos and the like
IPC: G03B15/06
Filed: 1974-08-27
Abstract: 1472783 Foldable reflecting screen R GOZZANO and S MARTINELLI 27 Aug 1974 [27 Aug 1973] 37344/74 Heading F4R The screen comprises a partially foldable and disassemblable skeleton having a flexible plastics covering wall (e.g. of synthetic fibres) having an inner white surface and an outer dark surface, and a wall or screen through which the rays from the inner surface pass and which is translucent. The screen is disconnectably connected with the skeleton along at least three of its edges. The skeleton comprises a main frame made up of beams 1 with end sections 2 and 3 which can be dismounted from the guiding sleeves 7, provided with spring locking means. A longitudinal beam 8 has sliders, enabling sections 10, 12, 14 to pass from the use position (shown dotted in the lower portion of Fig. 2) to the dismounted position in which they are parallel with beams 1. The curved rods 18 are mounted in guiding sleeves 16 with spring locking means and are shaped to define the parabolic cross-section of the inner surface. A lamp is mounted on the focal line of the reflecting surface and the covering then applied. The upper parabolic portion 19 is of opaque sheet material. The wall 20 which closes the lower opening of the skeleton is a translucent material connected with the covering 19 along one of the rods, and the other three sides 21 are attached by zippers. The screen is useful as a photographic accessory to provide illumination when taking photographs.
Patent GB-1144223-A (GB)
Title: Oxidation catalysts and their preparation
IPC: B01J23/881
Filed: 1966-08-19
Abstract: 1,144,223. Aldehyde preparation. LUMMUS CO. 19 Aug., 1966 [20 Aug., 19651, No. 37346/66. Heading C2C. [Also in Divisions B1 and C1] Alcohols are oxidized to aldehydes using a catalyst which has a surface area of from 2À0 to 5À5 sq. m./gm. and is prepared from salts of iron and/or cobalt and molybdenum and/or tungsten by a process which includes calcining the catalyst at a temperature of at least 500 C. (see Division B1). An example relates to conversion of methanol to formaldehyde by a process comprising passing a stream of air containing 8À5 to 9À5 vol. per cent methanol at 271 C. and a space velocity of 198 to 226 m.<SP>3</SP>/m.<SP>3</SP>/hr. over iron molybdate catalysts having surface areas from 2À2 sq. m./gm. to 6À0 sq. m./gm.
Patent GB-799473-A (GB)
Title: Improvements in self-starting synchronous electric motors
IPC: H02K21/12
Filed: 1956-12-06
Abstract: 799,473. Synchronous motors. GENERAL ELECTRIC CO. Dec. 6, 1956 [Dec. 8, 1955], No. 37358/56. Class 35. A self-starting synchronous motor with bifurcatal poles on the permanent magnet rotor has a notch dividing each pole section into two parts of unequal width and each complete pole spans a plurality of stator polepieces. As shown, a large notch 29 (Fig. 2) divides each rotor pole into two parts, each of which is further divided unevenly by small notches 32. Each pole span includes three imbricatal stator polepieces of which 22 are formed by separate fingers extending from the right-hand end of the coil core 7 and disposed between radially extending teeth 17 on a ring 15 secured to the casing 6, the closed end of which is secured to the left-hand end of the coil core. The coil conductors 8 on spool 9 may be enclosed by moulded material 11. The diameter and length of the motor are both approximately one and a quarter inches.
Patent GB-1344797-A (GB)
Title: Drive transmission mechanism
IPC: B65G33/34
Filed: 1972-08-10
Abstract: 1344797 Screw conveyers DEERE & CO 10 Aug 1972 [13 Aug 1971] 37432/72 Heading B8A [Also in Division F2] A first auger conveyer section 10 is pivotally connected to a second auger conveyer section 20 by means of a lateral tubular housing 30, and the drive from a first auger shaft 16 to a second auger shaft 26 is transmitted through sprockets 54, 64 engaging a continuous length of roller chain 46 freely mounted on a circular guide 42 secured to a part 32 of the housing 30. The sprockets 54, 64 are mounted on shafts 56, 66 which are connected to their respective shafts 16, 26 by bevel gears 60, 62, 70, 72. The casing 30 comprises relatively rotatable parts 32, 34, Fig. 3.
Patent GB-907149-A (GB)
Title: Esters containing epoxide groups, their production and their uses
Inventor: JOHNSTON ERIC
IPC: C07D303/16
Filed: 1959-11-05
Abstract: A hardenable composition comprises one or more epoxy esters containing two epoxide groups and having the general formula <FORM:0907149/IV(a)/1> wherein R1, R2, R3, R4, R5, R6, R7, R8 and R9 represent hydrogen atoms or monovalent substituents, e.g. halogen atoms, alkoxy groups, or hydrocarbon residues, n represents 1 or 2 and Z represents the residue of a non-aromatic monocarboxylic acid which contains an epoxide group or a non-aromatic dicarboxylic acid free from epoxide groups, wherein the term non-aromatic excludes only those acids in which a carboxylic group is attached directly to an aromatic nucleus, together with one or more hardening agents for epoxy resins, preferably polycarboxylic acids and their anhydrides. Other hardening agents specified include amines, amides, anilineformaldehyde resins, aminostyrene polymers, isocyanates, isothiocyanates, polyhydric phenols, phenol-aldehyde resins, products of aluminium alkoxides or phenolates with tautomeric compounds, FriedelCrafts catalysts and phosphoric acid.  The hardenable mixtures may also contain a proportion of said epoxy ester in which the epoxide groups are complete or partially hydrolysed to hydroxyl groups, and/or other polyhydroxy compounds or other epoxides.  The compositions may contain fillers, plasticizers or colouring agents.ALSO:The invention comprises epoxy esters containing two epoxide groups having the formula: <FORM:0907149/IV (b)/1> wherein R1, R2, R3, R4, R5, R6, R7, R8 and R9 represent hydrogen atoms or monovalent substituents such as halogen atoms, alkoxy groups or aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon residues, n represents 1 or 2 and Z represents the residue of a non-aromate monocarboxylic acid which contains an epoxide group or stands for the residue of a non-aromatic dicarboxylic acid free from epoxide groups, wherein the term non-aromatic excludes only those acids in which a carboxylic group is attached directly to an aromatic nucleus.  The novel esters are made by epoxidation of the corresponding esters containing a carbon-carbon double bond in the ring and, when n is 1, an epoxidisable group in Z, i.e. a double bond or a halohydrin group.  The starting materials are made by esterifying D 3-cyclohexanols using the carboxylic acid, anhydride or acid halide, if necessary in the presence of an esterification catalyst, e.g. toluene-p-sulphonic acid.  The epoxidation of the double bonds may be effected by treatment with organic peracids, e.g. peracetic, perbenzoic, peradipic or monoperphthalic acid, or by treatment with hypochlorous acid followed by an HCl-eliminating agent, e.g. a strong alkali.  The epoxidation of halohydrin groups in Z may be effected with a dehydrohalogenating agent such as potassium hydroxide or sodium hydroxide.  Examples describe the preparation of bis-3 : 4-epoxycyclohexyl succinate and 3 : 4-epoxycyclohexyl-3 : 4 - epoxy - tetrahydrobenzoate.
Patent GB-344513-A (GB)
Title: Improvements in or relating to cinematograph cameras and projectors
IPC: G03B21/48
Filed: 1929-12-07
Abstract: 344,513. Kinematograph projectors. KINGSTON, A. W., 9, Newman Street, Oxford Street, and SPICERS, Ltd., 19, New Bridge Street, both in London. Dec. 7, 1929, No. 37613. [Class 97 (i).] In projectors wherein governor weights 52 swing out to engage a surrounding collar 53, and thus remove a cut-off shutter 50 from the projection beam when projection speed is attained, as described in Specification 197,707, [Class 97 (i), Optical systems &c.], the weights are in the form of arc-shaped pads carried by spring-controlled arms or other resilient supports and the collar is spring-loaded so as to return the shutter when the speed falls. As shown the pads 52 are carried by arms controlled by springs 52a, and a spring 53a returns the collar 53. The collar carries a pin 56 which, when the collar is turned by the pads, bears against a pin 55 on a lever 60, to turn the lever. The lever 60 engages a pin 61 on an arm carrying the shutter 50 and swings it from a position in front of the condenser 20. The movement of the collar is limited by stops 57, 58, thereon which alternatively engage a fixed stop 54.
Patent GB-1327150-A (GB)
Title: Oxygen probe for the rapid measurement of oxygen activity  in molten steel
IPC: G01N27/00
Filed: 1971-08-11
Abstract: 1327150 Electro-chemical analysis BROKEN HILL PTY CO Ltd 11 Aug 1971 [25 March 1971] 37779/71 Addition to 1242811 Heading G1N The invention relates to an improvement in the solid-electrolyte probe of Specification 1242811, the coating of solid electrolyte being replaced by a plug thereof. As shown Fig.1 a twin-bore alumina tube 4 has the end hollowed out to hold the thermocouple 6 and a deposit of Cr/Cr 2 O 3  is flame sprayed therein to form the reference electrode which is covered by a zirconia plug 8. The electrode is shown protected by its fugitive cap 9 and cemented into an oxide covered steel tube 3. COUPLING:- A polythene tube 12 supports the leads which are bent through slits to mate with a socket in the lance. Alternatively Fig.2, (i) the fugitive cap may be formed by crimping the ends of the surrounding steel tube 33. (ii) the probe may be protected by a surrounding silica tube 19. (iii) the probe may be held by a threaded sleeve secured on to end of the lance (iv) lance terminals 25, 26 in a hard rubber plug 27 are illustrated (as in Fig.2 of the Parent. ) (v) a steel spring 35 welded at 36 to the lance tube 3, provides continuity with the outer tube 33.
Patent GB-1074423-A (GB)
Title: Improvements in or relating to ceramic material
Inventor: VUKASOVICH MARK SAMUEL
IPC: C04B28/34
Filed: 1964-09-14
Abstract: A cold setting composition comprises an aqueous solution containing at least one part acidic phosphate per part of water and consisting of phosphorous pentoxide and a basic oxide dissolved in an excess of ortho phosphoric acid in the proportion of 1 mole basic oxide to 0.6-3.0 moles pentoxide, and a calcium silicate in the range 10 to 70 parts silicate to 90 to 30 parts phosphate plus water. Specified oxides are those of calcium, aluminium and zirconium.  Cellular products are obtained by beating in gas or by adding substances, e.g. carbonates, sulphites, nitrites and nitrates which release gas in the acid medium.  Pore size is controlled by cationic agents, e.g. BzMe3Cl, and the strength of the cellular product increased by heating to 120-2550 DEG  F.  The product can be applied to steel or paper by spraying.  Silica is an optional ingredient.
Patent GB-999575-A (GB)
Title: Improvements relating to polarizing sections for an art work animator
IPC: G02B27/28
Filed: 1963-09-26
Abstract: 999, 575. Polarizing image-animating devices. D. N. YATES. Sept. 26, 1963 [Oct. 25, 1962], No.37912/63. Heading G2J. A polarizing section (Fig. 3) is prepared by applying an oriented poraizing sheet 11 to a support 13 (e.g. transparent isotropic resin) by an adhesive 12, covering selected portions of said sheet 11 by a chemical resist 14 (e.g. by photographic means or silk screen technique) and then removing the uncovered portions of the sheet e.g. by chemical etching. A number of these sections may be assembled with their polarization axes angularly orientated as shown in Fig. 5. An impression of movement can be given to a projected image by incorporating a sheet such as shown in Fig. 5 and rotating polarized in a projection system. The projection system shown in Fig. 14 comprises a lamp 60, reflector 19, condensing lenses 61, polarizing animator 67, transparency 65, lenses 62, rotating half wave plate 63, polarizing plate 64 and screen 65<SP>1</SP>.
Patent GB-868288-A (GB)
Title: Improvements in or relating to the removal of water from fibrous material and wet presses therefor
IPC: D21F3/02
Filed: 1958-11-25
Abstract: 868,288. Wet presses. LIPPKE, P. Nov. 25, 1958 [Dec. 19, 1957], No. 37915/58. Class 96. In a wet press for removing water from a web of fibrous material, e.g. paper pulp, the web, supported on a felt 5, is fed into a nip, which is insufficient to bank back water, between the rigid, e.g. metal, surface of a main roller 1 and a felttensioning and guide roller 3, and follows an arc of the surface of the roller 1 to a second nip between this roller and a cooperating pressure roller 2, water being pressed out only through the felt; preferably the web is then continued around the roller 1 to a further nip or nips between the main roller and a further pressure roller or rollers, e.g. roller 4 (Fig. 2). The rollers 2, 3, 4 are preferably rubber surfaced, pressure-adjustable by mechanical, pneumatic, or hydraulic means, e.g. as at 32, 33, 34, and adjustably driven together by belts 6, 7. The extraction of water from the paper web may be facilitated by an endless, incompressible sieve cloth 8, e.g. of metal or plastic mesh, supporting the felt 5, and passing therewith through the nips and in tensionadjustable manner around idle rollers 9, 10, 11, and also by warming the water in the web by electric heating, as described in Specification 774,227. A doctor mechanism comprising a blade 13 in a holder 14 mounted on an arm 15 restores fibres adhering to the roller 1 back to the web, such fibres, by piling up against a rail 20, actuating a relay 21 which in turn causes a solenoid valve 23 to transmit pneumatic or hydraulic pressure to a cylinder 18 to withdraw a rack 17 which through a bearing 16 causes the arm 15 to move from against a stop 19 to a position against a stop 25, indicated by the dotted line position in Fig. 2; the actuated relay 21 also supplies current through a time delay relay 26 to a solenoid valve 27 which permits compressed air to flow via a tube 28 to the enclosure of the holder 14 to blow away and deposit the fibres on to the web, their removal causing cessation of the actuation of the relay 21 and consequent return of the arm 15 to against the stop 19.
Patent GB-973285-A (GB)
Title: A sleeve or envelope for a gramaphone record or like flat article
IPC: B65D27/14
Filed: 1961-10-23
Abstract: 973,285. Flat envelopes. N. J. GARROD, and S. A. F. C. PLUNKET. Oct. 19, 1962 [Oct. 23, 1961], No. 37974/61. Heading B8K. [Also in Division B6] A sleeve for a gramophone record or like flat article has edges formed by a marginal extension 3 of one face folded back upon itself, the other face 2 being cut short so that its edge 2a lies close to and in the same plane as the folded marginal extension 3, there being provided between the two edges a closing sheet or strip 5 which is adhered to the inner face of one of the edges and the outer face of the other edge. An overall cover sheet 7 may also be provided and overlaps the join. The join may be covered by a strip.
Patent GB-1201184-A (GB)
Title: Improvements in or relating to discharge devices for bottles
IPC: B08B9/44
Filed: 1967-08-18
Abstract: 1,201,184. Endless conveyers. SEITZ-WERKE G.m.b.H. 18 Aug., 1967 [22 Aug., 1966], No. 38048/67. Heading B8A. Bottles discharged from carriers 10 of a bottle-cleaning machine (not shown) or transferred to an endless conveyer 16 by an endless member which simultaneously lowers the bottles and pushes previously lowered bottles across a stationary plate 14 on to the conveyer 16. The endless member comprises a pair of spaced endless chains 21 with bars 22 extending therebetween to individually support component members 24 forming a series of pairs of wedge-shaped discharge members 23. The shape of the wedge, in combination with the inclination of the endless chains creates a support surface 26 to receive the bottles to be lowered and a vertical face 25 to abut a previously lowered belt 6 and advance the same across the plate 14.
Patent GB-1220778-A (GB)
Title: Process for dyeing natural or synthetic polyamide fibre material
Inventor: LANGMANN WERNER
IPC: D06P3/10
Filed: 1969-07-29
Abstract: 1,220,778. Dyeing polyamide fibres. FARBENFABRIKEN BAYER A.G. 29 July, 1969 [5 Aug., 1968], No. 38058/69. Heading D1B. Natural and synthetic polyamide fibre materials are dyed by the exhaustion method in a dyebath prepared from a water-immiscible organic solvent, an anionic dyestuff and an emulsifier consisting of an anionic and a non- ionic surface active agent, optionally in presence of a polar organic solvent which is at least partially miscible with water. Polyamides include wool, hair, silk and synthetic polyamides, anionic dyes include acid and reactive dyes, water immiscible organic solvents are perchloroethylene, tetrachloroethylene, 1, 1, 1- trichloroethane, toluene, xylene, trichloroethylene, chlorobenzene, di and tri-chloropropane, chloro- and di-chloro-butane, polar solvents are isopropanol, benzyl alcohol, formic and acetic acids.
Patent GB-1150631-A (GB)
Title: Stemming
Inventor: OULSNAM BRYON THOMAS
IPC: F42D1/18
Filed: 1965-09-07
Abstract: 1,150,631. Tamping plugs. COREPLUGS Ltd. 22 Nov., 1966 [7 Sept., 1965], No. 38078/65. Heading F3A. Tamping plugs 10 are formed integrally and connected by a frangible web 11, and are made from a mixture consisting principally of sand bound with sodium silicate. Each web can have a notch 13 extending the full length of the plug to assist in breaking the plug from the assembly. The plugs may be cylindrical or tapered, and may also include some granular ceramic material. The plugs are moulded by a process similar to core-blowing and are treated with carbon dioxide which reacts with the sodium silicate to form a bonding agent for the sand.