baber/WOPTO huggingface dataset:
Patent GB-512817-A (GB)
Title: Improvements in photographic exposure calculators
IPC: G01J1/42
Filed: 1938-03-23
Abstract: 512,817. Photographic exposure calculators. GROVES, W. W. (I. G. Farbenindustrie Akt.- Ges.). March 23, 1938, No. 8911. [Class 106 (i)] [Also in Group XX] In calculators of the type in which the exposure time is determined by turning a selector dial once for each factor, the dial returns automatically to its original position after the manner of the dialling mechanism of automatic telephone apparatus and optical or acoustic devices are provided to warn the operator against possible errors in manipulation. Preferably a window is provided in which the next operation to be performed is indicated after each step. Means may be provided to lock the mechanism after the requisite number of operations. The apparatus may be returned to initial position by pressure on a knob. In the form shown, the dial 2, Fig. 1, is provided with a series of numbered holes in which the finger is inserted in accordance with numbers derived from the tables T, the dial being then rotated till the finger reaches the stop 5. Rotation of the dial turns the bell .crank lever 3, 4, Fig. 3, the arm 3 advancing the ratchet wheel 6 to bring a different instruction behind the window 7. The arm 4 advances the ratchet wheel 11 which drives. the time -scale wheel 8. The dial is returned to initial position by a spring in the housing 12<SP>1</SP>, the wheel 8 being prevented from reverse rotation by a brake spring 13<SP>11</SP> engaging a tooth on the wheel 12. After the series of selections is completed, a pin 26 on the wheel 6 engages an arm 29 to rotate the shutter disc to open the apertures 30 to disclose the times of exposure corresponding to the aperture values on the scale 36 and at the same time to ring the bell 31. The mechanism is released by pressure on a knob 39, the wheels being provided with 'return springs. The knob 39 may operate a counter. The apparatus may be coin freed.
Patent GB-116916-A (GB)
Title: An Improved Letter File.
Inventor: STAVENHAGEN OTTO
IPC: B42F13/00
Filed: 1917-06-21
Abstract: 116,916. Stavenhagen, O. June 21,1917. Addition to 105,739. Covers; boxes.-In a modification of the letterfiling device described in the parent Specification, the two files s, t are so arranged that the rear part 6 of the second file is fastened to the forward edge of the cover c of the first file. The bow i of the file t is preferablv extended as shown at i<1> to facilitate the opening of the file.
Patent GB-622723-A (GB)
Title: Improvements in or relating to fluid flowmeters
IPC: G01F1/22
Filed: 1947-04-02
Abstract: 622,723. Fluid flowmeters. BRITISH CELANESE, Ltd. April 2, 1947, No. 8989. Convention date, April 5, 1946. [Class 69 (i)] To prevent clogging in a rotametor when the fluid contains particulate solids, the float is made in two parts, both axially guided by a rod 11. The upper member 6 of the float is a cylinder of small diameter, tapered at its lower end 14 to form a spherical surface that maintains contact with a concave depression 15 in the top of the lower member 7 of the float formed in the shape of a frustum of a cone. The internal bore of the member 7 is tapered, widening towards the inlet of the tube, so that as the particles impinge on the side of the member 7 it is able to tilt enabling the particles to pass by. Notches 16 are provided in the member 7 to cause it to rotate. In a modified form the member 7 is in the form of a disc.
Patent GB-1096006-A (GB)
Title: Substituted biurets
IPC: C07C275/62
Filed: 1966-03-02
Abstract: Novel compounds of formula <FORM:1096006/C2/1> wherein R is hydrogen, halogen or lower alkyl, n is 1-4, R1 is hydrogen or lower alkyl, and R2 is alkyl or aralkyl, or R1 and R2 together may complete a heterocyclic ring, are prepared by reacting an N-substituted biuret of formula <FORM:1096006/C2/2> with an appropriate phenylalkylamine, in a liquid reaction medium, at an elevated temperature. The compounds may also be prepared by the process given in Specification 1,096,005.  Therapeutic compositions having central nervous system depressant activity, which may be administered orally or parenterally, contain as active ingredient compounds of Formula I above.  1,1 - Dialkyl - 5 - nitro - biurets used as starting materials may be prepared by treating a 1,1-dialkylbiuret with a mixture of concentrated sulphuric acid and nitric acid.
Patent GB-181154-A (GB)
Title: Improvements in, or relating to, rifles of the martini and similar types
IPC: F41A17/58
Filed: 1921-03-24
Abstract: 181,154. Greener, H. March 24, 1921. Breech-actions, hinged breech-block.-Consists in an automatic tumbler-locking safety device for a Martini or like action, wherein a rotary safetybolt adapted to act on an extension of the tumbler is, during the cocking of the gun, displaced into the safety position by means of the breech-block, striker, cocking-lever or other moving part of the action. In the construction shown, the rotary safety-bolt b is operated by a cam or projection g on the breech-block f. The safety-bolt acts on a tail-piece a' of the tumbler a, and is formed with a slot b<1> which, when the safety is off, gives clearance to this tail-piece. An external fingerlever is provided for moving the safety-bolt to the off position.
Patent GB-1028915-A (GB)
Title: Process for the preparation of unsymmetrical esters from aldehydes
Filed: 1963-03-07
Abstract: The invention comprises compounds of formula <FORM:1028915/C2/1> wherein R, which may be the same or different, represents a hydrogen atom or methyl group, and Y represents a hydrogen atom or together form a methylene group, specifically 2,3-dihydropyran-2-carboxyli acid-11,21,51,61 - tetrahydrobenzyl ester, 2,3-dihydropyran-2-carboxylic acid - 21,41 - endomethylene - 11,21,51,61-tetrahydrobenzyl ester and 2,3-dihydropyran-2-carboxylic acid - trans - 61-methyl - 11,21,51,61-tetrahydrobenzyl esters. The compounds are prepared by reacting aldehydes of formula <FORM:1028915/C2/2> e.g. dimers of acrolein, a -methyl acrolein or crotonaldehyd with aldehydes of formula <FORM:1028915/C2/3> e.g. tetrahydrobenzaldehyde, trans-2-methyl4,6-tetrahydrobenzaldehyde or endo methylenetetrahydrobenzaldehyde, in the presence of a metal alcoholate, e.g. aluminium isopropoxide with or without an inert diluent such as hexane or cyclohexane.
Patent GB-214438-A (GB)
Title: Improvements in mouthpieces for tobacco pipes, cigar holders and cigarette holders
IPC: A24F7/00
Filed: 1923-04-04
Abstract: 214,438. GrandclÚment, G. April 4, 1923. Tobacco pipes and cigar and cigarette holders. - The bead b on the end of the mouthpiece a is made convex toward the bowl, and the end of the mouthpiece is made concave as at b<2>. The bead may comprise an attachment of hygienic or precious material, or an attachment c<1> of such material may be screwed or cemented into the bore or an enlargement a<3> thereof so as to lie within the concave end of the mouthpiece. The attachment c' may be trumpet-shaped as shown, or may be hemispherical or discoidal in form. The smoke bore may be flared at the end b<2> of the mouthpiece. One of the Provisional Specifications describes the member c<1> as attached to an' ordinary mouthpiece.
Patent GB-753620-A (GB)
Title: Improvements in or relating to reproducing machines using cutting tools
Inventor: ROEHM ERWIN GRANT
IPC: B23Q35/18
Filed: 1954-03-30
Abstract: 753,620. Copy-milling. CINCINNATI MILLING MACHINE CO. March 30, 1954, No. 9250/54. Class 83 (3). A copying - machine comprises a support for a pattern 36 and a workpiece 35, a deflectable tracer 46<SP>1</SP> controlling means for moving, relatively to the support, a support 33 carrying the tracer and a cutting tool 46, the tool being carried in a holder movable, relatively to its support, by means controlled by the deflections of the tracer, in a path corresponding in direction and amount to the physical displacement of the tracer contact portion with respect to the tracer support 33. The cutter 46 rotated by a motor 47 is mounted on a slide 44 movable by a piston 56 on a slide 48, which is itself movable by a piston 52 on a slide 40, adjustable vertically by hand or power on the slide 33. The pistons 52, 56 are controlled by valves 72, 93 actuated respectively by levers 78, 80, 81 82 and 88, 98. The sets of levers are controlled by yokes 83, 99 engaging a collar 156 positioned by a ball 191 on the end of a lever 183 pivoted at 184 in a tracer-sleeve 141 and having its other end 192 mounted in a slide 150. The slide 150 carries the tracer 461 and is adjustable to vary the offset or amount of " anticipation " of the tracer. Adjustment of the offset moves the collar 156 and hence the piston 52 to move the tool automatically to a corresponding posi. tion. Thus the tracer 46<SP>1</SP> controls, through the lever 183, the position of the tool 46 on slide 40; it also controls, as described below, the movements of the slide 33, together with the transverse slide 40, and also of a longitudinal bridge 17. Deflections of the tracer 46<SP>1</SP> cause movements of the sleeve 141 about a pivot 140 to move a slide 159 transversely and so displace a valve 163. The valve controls the flow of fluid to the valves 72, 93 and also to valves 168, 177 which respectively control hydraulic motors 30, 34 which, through rack-and-pinion gearing, move the bridge 17 and slide 33. The setting of the valves 168, 177 is controlled by an eccentric cam 109 on a shaft 108 rotated by a motor 112 in one or other direction according to the setting of a reversing valve 115. The motor 112 is energized by the movement of the valve 163 and rotates not only the shaft 108 but also a tracer casing 105 in a direction to relieve the' deflection on the tracer until the valve 163 is centralized as regards its land 129. The casing 105 may be operated manually by a handwheel 136, keyed to the tracer head 143, a selector valve handle 134 then being set in the broken-line position, Fig. 9, so that the motor 112 is non-operative. Slides. The slides 44, 48 may be mounted on ball bearings 60, 59, Fig. 10. Specification 581,148 is referred to.
Patent GB-107623-A (GB)
Title: Improvements in Boxes.
Inventor: CHANDLER GEORGE MANCHESTER
IPC: B65D5/66
Filed: 1916-06-30
Abstract: 107,623. Chandler, G. M. June 30, 1916. Boxes made from special blanks; lids and covers; ornamenting boxes.-A folding box for chocolates, fancy goods, &c., made preferably from an integral blank of cardboard &c., is provided with rectangular corner pieces c<1> connected to the ends c and adapted to lie against the sides b when the box is. erected. The box is erected and secured by one or more tapes, cords, or ribbons i passed through eyeleted holes in the sides and ends, the free ends being used to secure the lid by tying. Holes for the cord may be formed on the lid or in a tab e thereon. A slot f is provided to receive the tab e. For ornamental effect, coloured ribbons placed one above another are used. The box may be of wood or metal, the parts being hinged together. Reference has been directed by the Comptroller to Specifications 19100/00 and 685/07.
Patent GB-308685-A (GB)
Title: Improvements in tripod or like stands
IPC: F16M11/32
Filed: 1929-03-22
Abstract: 308,685. Thalhammer, K. W. March 26, 1928, [Convention date]. Tripod stands.-A telescopic leg for a tripod stand consists of two similar members 15, pivoted to a boss 14 of the stand head, and a lower member 21 slidably and reversibly arranged in opposed tapered grooves formed in the lower ends of member 15. The member 21 is clamped in position by a band 24 and screw 25 and is provided with a metal point 22 at one end and a rubber button 23 at its other end. The upper ends of the members 15, which are preferably made of wood, are formed as apertured ears, which may be reinforced by wooden inserts 20 to prevent splitting, to receive screwed pins 16 extending from the boss 14. The member 21 is preferably a metal tube of round or square section.
Patent GB-233855-A (GB)
Title: Improvements in or relating to devices for sharpening knives or the like
IPC: B24D15/08
Filed: 1924-04-14
Abstract: 233,855. Gibbons, K. M. April 14, 1924. V-slot and like blade sharpeners.-A knife &c. is sharpened by drawing the edge across the peripheries of overlapping steel discs 20. The discs have cylindrical peripheries and are supported in inclined relationship within a casing 1 by means of a cage 22. The cage is formed of sheet metal shaped as shown in Fig. 5, the discs being supported by slots 23, 24. In a modification, one pair of discs only is used, the cage and casing being held at the end of a handle formed by a U-shaped metal strip. The discs may have bevelled peripheries, their axes then being parallel.
Patent GB-1157231-A (GB)
Title: Hydraulic and Pneumatic System for Controlling Tools
Inventor: STEAD ALBERT HENRY
IPC: B21J15/02
Filed: 1967-02-28
Abstract: 1,157,231. Hydraulic bolt tensioning. SKYHI Ltd. 28 Feb., 1968 [28 Feb., 1967], No. 9370/67. Heading F2H. [Also in Division F1] A method of controlling the operation of a tool for anchoring bolts under a predetermined tensile load comprises using the tool to effect a number of hydraulically actuated operations at different pressures for carrying out the anchoring sequence, wherein pneumatic pressure is used at different pressure levels to produce the different hydraulic pressures. The bolt 38 is passed through two plates 34, 36 and the collar 42 slipped on to the grooved shank of the bolt. A ram 11 is held at the lefthand end of its cylinder by oil at about 200 p.s.i. while the pintail 44 of the bolt 38 is forced into the open jaws of the tool 10. A push button 13 is then depressed, the valve 20 is changed over to supply oil to the left-hand side of the ram 11 and the control air is supplied from pipe 23, through air pilot valve 22 to change over valve 24 to increase the air pressure supply to the motor and hence the hydraulic pressure to move the ram to the right and so tension the bolt. When the bolt is stretched beyond a certain point, the pintail 44 snaps off at neck 40 leaving the collar 42 swaged on the remaining part 38 of the bolt. When the button 13 is released, the valve 20 is again changed over to move the ram to the left and the air pressure is released through valve 22. Oil pressure again builds up until the tool 10 ejects the broken-off pintail 44 at about 2000 p.s.i. At this pressure the valve 28 operates which through valve 26 changes over valve 24 and by changing over valve 24 pressure is applied to the motor at 5 p.s.i. and the oil bleed valve 31 is operated. The motor stalls at this pressure and the sequence can then be commenced on another bolt. The fluid is supplied to either side of the ram by means of an hydraulic pump 14 and a pneumatic motor 16.
Patent GB-1450023-A (GB)
Title: Size indicating device flame-retardant polyolefine composition
IPC: B26D7/28
Filed: 1975-03-06
Abstract: 1450023 Cutting apparatus POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 6 March 1975 [10 May 1974] 9376/75 Heading B4B [Also in Divisions G1, H1 and H3] Sheet cardboard or paper stock 36, Fig. 1, is pushed against a cutter blade (not shown) by an abutment 1 moved by a leading screw 2 and is measured by a tape 3 viewed relative to a marker 24, Fig. 2, by mirrors 4, 5 to give a coarse reading of say between 88 and 88.5 centimetres. Fine measurement is registered by digital electric indicators 22, 23 operated selectively by the angular positions of contact balls 12, 33 Fig. 3, held in a fixed carrier 11 relative to twenty contacts 27 and two contacts 29, Fig. 4, on a rotary disc switch 25 secured to an insulating body 20 held by a clamping disc 21 to a hub 19 rotated by the screw 2. The contacts 27, 29 are fixed in position on the disc 25 which rotates with respect to the ball contacts shown as numbered dots on Fig. 4, the maximum reading given by the disc being 9.9 mm at the end of the movement of the abutment 1. The outer ring of balls 12 on the track 28 measure tenths of a millimetre, the balls 12 on the track 30 give millimetre indications. The rotational position of the contact disc 25 for the indication of the size 4.2 mm is illustrated in Fig. 4, the balls 12 being connected to a (+)ve pole and numeral indicator tubes 22, 23 whilst a single ball 33 is connected to a ( - )ve pole. The balls may be lifted off the disc 25 into a non operative position during movement of the tape 3 by rotating an insulating perforated disc 14, Fig. 6, to a position where it inserts itself between the balls and disc. In a modification, Fig. 5, the disc switch 25 is replaced by contact arms 40 connected to a bridge 41 and movable in a direction E relative to fixed contacts 0-9. The bridge 41 has a ( - )ve contact point 42 and the ( + )ve contacts 43 are connected to the digital indicators as before. It is evident that as the connection of the numeral 9 is left by the strip 40 the connection of the zero is at this instant touched by the next strip 40 so that a continuous numeral sequence is assured.
Patent GB-928985-A (GB)
Title: A thermionic emission converter for the direct conversion of thermal energy into electrical energy
IPC: G21C3/40
Filed: 1962-03-12
Abstract: 928,985. Thermionic converters; nuclear reactors. EUROPEAN ATOMIC ENERGY COMMUNITY, EURATOM. March 12, 1962 [March 13, 1961], No. 9414/62. Classes 39 (1) and 39 (4). In a method of producing electrical energy by direct conversion from thermal energy, a solid emitter electrode, constituted by a nuclear fuel element 10, is immersed in a relatively cool, liquid, collector electrode 11. A gas film is maintained between the electrodes by evaporation of collector electrode liquid, which is circulated in a cooling and/or purifying circuit 12. As shown, a plurality of ceramic fuel rods 10 are supported in a liquid alkali metal 11 contained in a stainless steel housing 19 to form the core of a fast nuclear reactor. The circulation system 12 includes a pump 14, and a cleaning circuit in parallel with heat exchanger 13. The elements 10 are screwed into insulators 15 or into a bus-bar 16 within the housing, and are supported laterally by spacing screen 18, their lower ends being provided with insulating caps 17. An alternative type of fuel element, Fig. 1 (not shown), comprises a fuel rod immersed in alkali metal in a stainless steel container.
Patent GB-1547958-A (GB)
Title: Amphoteric polymers and process for their use
IPC: C08G18/08
Filed: 1975-03-06
Abstract: The textiles are treated with a polymer compound from an aqueous bath. The polymer compound used has at least one polymer chain and further contains at least one cationic and also at least one anionic group. The molecule must have at least two reactive groups capable of crosslinking either directly or by means of a crosslinking agent. The polymer compounds are then crosslinked on the fibres. A special advantage of this process is that the finishes in question can be applied to the fibre materials from an aqueous bath by exhaustion, possibly at the same time as dyes, in which case they also have dye-levelling properties.
Patent GB-375789-A (GB)
Title: Improvements in rotary machines
IPC: F04C14/00
Filed: 1931-03-28
Abstract: 375,789. Rotary pumps and compressors. JAWOROWSKI, J. F., 617, Brotherhood Locomotive Engineers Building, Cleveland, Ohio, U.S.A. March 28, 1931, No. 9500. [Class 110 (ii).] In a rotary pump or compressor of the kind comprising vanes 18 rotated within a cylindrical casing 16 by a cylindrical rotor 19 eccentrically mounted in the casing, a byepass valve 12, permitting, when open, direct communication between the pressure and suction sides of the machine, is arranged in a detachable head 10, and the rotor 19 is detachably secured at one end by a key 11 to the driving shaft 24 and is mounted at the other end on a fixed shaft 29 secured to the end wall of the casing and having an eccentric extension 23 serving as an axle for the vanes. The valve 12 is acted upon by a spring 43 and normally closes the end of a tube 47 formed with slots 53 communicating with the discharge chamber 6 of the machine ; in the event of undue pressure being built up in the outlet 6, the valve 12 opens automatically to establish a direct byepass connection between the discharge chamber 6 and the inlet chamber 5. The head 10 is reversible, end for end, so that the machine may be operated in either direction. The vanes 18 may be mounted either directly in longitudinal slots 21, Fig. 1, in the rotor, or, as shown in Fig. 12, there may be provided semi-cylindrical bearing-blocks 56 engaging recesses 55 in opposite sides of the slots 21. Any desired number of vanes may be provided and in the case where three or more are employed, the axle 23 may be separate from the fixed shaft 29, thus constituting a " floating " connection for the vanes. The machinemay be used as a meter for measuring the flow of liquids or gases, the shaft 24 being, in this case, driven by the rotor to operate a counter or the like.
Patent GB-1301173-A (GB)
Title: Ceramic materials containing calcium hydrosilicates
Inventor: OHNEMULLER WALTER
IPC: C08K3/34
Filed: 1970-03-12
Abstract: 1301173 Ceramics REIMBOLD & STRICK 12 March 1970 [12 March 1969] 9582/72 Divided out of 1301172 Heading C1J A process for forming a ceramic material comprises adding one or more calcium silicate hydrates having a molar ratio of SiO 2  : CaO of 0À7 to 1À3 to ball clay or other sintering material and thereafter annealing the mixture thus formed, preferably at 800-1150 C.
Patent GB-756599-A (GB)
Title: Manufacture of cupriferous disazo-dyestuffs
Inventor: RIAT HENRI
IPC: C09B45/28
Filed: 1954-04-01
Abstract: The invention comprises dyestuffs of formula:-<FORM:0756599/IV(c)/1> where R1 is a benzene or naphthalene residue in which the two azo groups are in para-position relatively to one another and in which the O-Cu-group is in ortho-position to -N=N-R2-O-, R2 is a naphthalene residue bound to the azo group in ortho-position to the -Cu-O- group and which contains at most one or two sulphonic acid groups, R3 is a benzene residue fixed on to the thiazole ring as shown, R4 is a benzene residue bound to the azo linkage in para-position to the connection with the thiazole residue, and n is 1 or 2 the total number of sulphonic acid groups present being at least 2.  They are made by treating corresponding dyestuffs containing the grouping O alkyl attached to R1 and OH attached to R2 with appropriate copper-yielding agents.  The metal free dyestuffs are made by coupling an amine of formula:- <FORM:0756599/IV(c)/2> where NH2 is in the para-position to the connection with the thiazole nucleous with a middle component <FORM:0756599/IV(c)/3> , diazotizing the resulting-amino-azo-dyestuff and coupling with the desired naphthol.  Thiazole compounds mentioned are mono- and disulpohnic acids of dehydrothiotoluidine and sulphonic acids of 2-(41aminophenyl)-benzthiazole, -6-methoxy- and -5-methyl and -chloro-benzthiazole and 2-(41-aminophenyl)-6-methyl-benzthiazole-31-sulphonic acid. Specified middle components are 2-methoxyaniline, 2-methoxy-5-methylaniline, 1-amino-2-methoxy- and -ethoxy-naphthalene and their 6- and 7-sulphonic acids.  Specified end components are 1-naphthol-3-, -4- and -5-mono- and -3, 6- and -3, 8- di-sulphonic acids and 2-naphthol and its -4-, -5-, -6- and -7- mono- and -3, 6-di-sulphonic acids.  Coupling of the initial component is usually effected in weakly acid to weakly alkaline medium and if the middle component is of low coupling power, e.g. 2-methoxy-aniline, it may be used as its o -methane sulphonic acid.  The second coupling is effected in an alkaline medium optionally in the presence of compounds such as pyridine or picoline.  Coppering is effected by conventional methods (see Specification 644,883).  The copper-containing dyestuffs dye wool, silk and leather and especially cellulose-containing fibres such as cotton, linen, artificial silk and regenerated cellulose. Examples and a Table are provided illustrating the use of certain of the above specified components in the preparation of the copper-containing dyestuffs and the use of such dyestuffs in dyeing cotton.  The dyestuffs of the Examples dye cotton in shades of violet-grey to blue-grey and green.