baber/WOPTO huggingface dataset:
Patent GB-492104-A (GB)
Title: Process for the manufacture of diazotisable dyestuffs
IPC: C09B43/124
Filed: 1937-03-12
Abstract: Diazotizable dis- or poly-azo dyes are prepared by reacting yellow pyrazolone dyes of the formula A-N=N-B wherein A is the radicle of a diazotizable component containing one or more azo groups, and B is the radicle of a 1-aminophenylpyrazolone or a substitution product thereof, with acid halides of organic sulphonic or carboxylic acids, which contain in an aromatic nucleus a substituent convertible into an amino group, i.e. a nitro or N-acyl group and which may further be substituted by negative substituents, and converting the said substituent into the amino group.  Alternatively the 1-aminophenyl-pyrazolone or substitution product thereof may be condensed with the acid halide, then coupled with a diazoazo compound and the convertible group converted or vice versa.  Acid halides specified are the nitrobenzoyl, nitrobenzenesulphonyl and nitrophenylacetyl halides, the acid halides of nitrobenzophenones and nuclear substitution products thereof substituted by negative substituents such as -NO2, -CO-, -SO2-, -C­N and halogen.  The dyes yield yellow shades when diazotized and coupled with b -naphthol on the fibre.  In examples: (1) to (4) and (8) to (11) <FORM:0492104/IV/1> is reacted in aqueous sodium carbonate with m-nitrobenzoyl, 5-nitro-2,4-dichlorobenzoyl, 3-nitro - 5 - cyanobenzoyl, m - nitrobenzene sulphonyl, 3,5.- or 2,4-dinitrobenzoyl, 4-nitro-toluene-2-sulphonyl or 3-nitrobenzophenone-41-carboxylic acid chloride and the nitro group in the product is reduced by sodium sulphide, only one nitro group being reduced in the case of the dinitro derivatives; (5), (7), and (14) 1-(31-aminophenyl)-5-pyrazolone-3-carboxylic acid is condensed with the chloride of 2-nitro-4-carboxyphenyl-methyl- or ethylsulphone or m-nitrobenzoic acid, coupled with the diazo compound of the starting dye of (1) and reduced or the nitro group may be reduced before coupling; (6) and (7) 1-(31-aminophenyl)-5-pyrazolone - 3 - carboxylic acid is condensed with the chloride of 2-nitro4-carboxyphenyl-methyl sulphone or m-nitro-benzoic acid, coupled with diazotized <FORM:0492104/IV/2> and reduced; (12) the starting dye of (1) is diazotized and coupled with p-aminophenyl-3-methyl-5-pyrazolone, condensed with m-nitrobenzoyl chloride and reduced; (13) salicylic acid \sM benzidine --> 1-(21-methyl-31-amino - 51 - sulpho) - phenyl - 3 - methyl - 5-pyrazolone is condensed with m-nitrobenzoyl chloride and reduced. According to the Provisional Specification A stands for the radicle of any diazo component and in the alternative process the condensed aminophenylpyrazolone may be coupled with a diazo component.  Also B stands for the radicle of a 1-aminoaryl-pyrazolone. Specification 451,100 is referred to.
Patent GB-868232-A (GB)
Title: Tufting machine
IPC: D05C15/20
Filed: 1959-03-03
Abstract: 868,232. Tufting machines. COBBLE, J. A., and COBBLE, Jun., J. A. March 3, 1959 [March 4, 1958], No. 7328/59. Class 112 [Also in Group XXIV] In a tufting machine means are provided for varying the stroke of the vertically reciprocating needle or needles without changing the position of either the top end or the bottom end of the needle stroke. As shown, the bottom end of the stroke remains unchanged, whereby, after the position of the needle plate has been altered to vary the depth of the pile, with corresponding alteration of the needle stroke to provide suitable clearance between the needle plate and needle at the top of the needle stroke, the position of the needle at the bottom of the stroke relative to the position of the looper remains unchanged. Needles 22 are carried by a horizontal bar 24 and the latter is carried by vertically reciprocating needle bars 25, each of which passes through a collar 27 fixed in the bottom part of an enclosed housing 26. The upper ends of bars 25 are connected by pivotal links 114 to arms 112 projecting radially from an oscillating shaft 106. A work-supporting plate 42, having at its rear edge a comb-like formation 46 to permit passage therethrough of the needles, is fixed to the horizontal flange of an angle bar 52, the vertical flange of which is secured adjustably to a horizontal bar 76 of the machine frame by screw-and-slot connections 78, 80. A presser foot 44 is carried by vertical bars 86 adjustably secured by screws 94 to a horizontal bar 84 which is adjustably secured by screws 90 to the collars 27. Brackets 82 rigidly interconnect plate 42 and bar 84. The vertical flange of angle bar 52 carries a rack 58 engaged by a pinion 62 on a shaft 60. Rotation of the latter, after screws 78 and 90 have been slackened, thereby alters the vertical positions of plate 42 and presser foot 44 simultaneously. An arm 136, projecting radially from shaft 106 in the same direction as the arms 112, is coupled by a connecting rod 138 to an eccentric sheave 134 on a shaft 126, whereby rotation of the latter serves to reciprocate the needles. A curved slot 152 in arm 126 is engaged by a bolt 156 carried by rod 138 to provide an adjustable connection for varying the stroke of the needles. The centre of curvature of slot 152 is arranged to coincide with the centre of curvature of the sheave 134 when the latter is in its bottom dead centre position. Altering the stroke of the needles thereby does not change the bottom position of the stroke. Lubricating. Needle bar 25 is journalled in a pair of self-lubricating bushes 102 fixed in the opposite ends of a sleeve 100 which is fixed in the collar 27. The upper end of bar 25 carries a depending tube 104 which encloses the upper end of sleeve 100 and thus prevents the transference of oil from the housing 26 to the work along the needle bar.
Patent GB-536752-A (GB)
Title: Improvements in control systems for electric heating apparatus
IPC: H05B1/02
Filed: 1940-04-25
Abstract: 536,752. Clockwork actuation of switches. BRITISH THOMSON-HOUSTON CO., Ltd. April 25, 1940, No. 7444. Convention date, April 25, 1939. [Class 38 (v)] [Also in Group XXXV] Manually-operated means to energize two heating circuits for maximum heating of cooking &c. apparatus and determine the setting of timing means adapted to de-energize one of the circuits to permit continued heating at a low rate may operate to disconnect the first or second circuit or to re-adjust the timing means at any time. An actuator 21 carries abutments 23, 22, adapted to engage in sequence switch arms 15, 16 when moved anti-clockwise, to open, respectively, the circuits of a high-heat unit 10 and a low-heat 11. These circuits are closed by the movement of a dial handle 42 from the " off " position shown to any position on the dial indicating the time in minutes at which a clock mechanism will restore the handle to the "low" position in which only the unit 11 is in service. The dial handle operates the actuator 21 clockwise through a shaft 41, arm 45, rolled 47 and cam 48 on an arm 29 and winds up a spring 49 in the process. A friction coupling 51 connects the clock mechanism to the shaft 51 to drive the dial handle and arm 45 back to a position in which an abutment 46 actuates an arm 33 to release the actuator 21 from a latch formeaby one end of the arm 33 and an abutment 31 on the arm 29, whereupon it is held, by a second latch formed by a recess in the arm 33, in the position in which the switch arm 15 opens the circuit of the unit 10. This second latch is released by actuation of the dial handle to the " off " position. An arm 30 actuates a lever controlling a brake 56 to lock the balance wheel 55 when the dial handle reaches the " low " position in the de-energizing direction. Owing to the friction drive the clock mechanism does not prevent manual adjustments of the dial handle and arm 45 at any time.
Patent GB-1463058-A (GB)
Title: Beehives
IPC: A01K47/00
Filed: 1973-02-15
Abstract: 1463058 Beehives J LINDSAY 15 Feb 1974 [15 Feb 1973] 7459/73 Heading AIM A beehive has a brood chamber 11, opposite walls of which have recesses 14 receiving an adaptor 20-23 by means of which equipment, (i.e. brood frames and supers) which is not of the correct size for the brood chamber, may be supported. Thus British Standard frames can be fitted to a Dadant brood chamber by fitting an appropriate adaptor over the brood chamber, the lugs on the frame engaging the adaptor. A super 25 will then fit over the lugs of the frames and rest on the adaptor, with the interposition of a queen encluder 24. A mesh or perforated floor 17 is slidably engageable with the brood chamber and has a ridge 19 which closes the entrance recess 15 when the floor is in its innermost position when it is desired to move the hive. The floor may be partly withdrawn to form a flight board, or may be removed to permit unrestricted entry and exit of the bees. The supers may be formed with ribs 40, 41 having projecting ends with inclined surfaces 42a, 45a which engage the surrounding lift to prevent any displacement of the super within the lift. The hive may be provided with a flat or a pitched roof which may be secured to the uppermost lift by a locking bar and padlock, and the bar may be chained to the ground to discourage theft.
Patent GB-505392-A (GB)
Title: Improvements in and relating to monumental plinths or foundations
IPC: E04H13/00
Filed: 1938-03-11
Abstract: 505,392. Monumental foundations. SOMERS, T. T. March 11, 1938, No. 7566. (Class 20 (i) A monumental plinth or foundation for grave memorials is cast in concrete in the form of an open-ended hollow block comprising long side walls A, A<3> and one end wall A<1>, the side walls being connected intermediate of their length by ties C, C<1>. Connectors B<3>, B<4> are formed integral with the lower surface of the plinth between the ends thereof and removable blocks A2, A4, are adapted to be positioned upon'these connectors to provide support for the surround and headstone. The intermediate ties are cast integrally with the plinth and level with the upper and-lower surfaces thereof.
Patent GB-1299425-A (GB)
Title: Improvements in disposable thin wall plastic snap-on lids
Inventor: DAVIS PAUL
IPC: B65D43/02
Filed: 1970-02-17
Abstract: 1299425 Container closures SWEETHEART PLASTICS Ltd 17 Feb 1970 7591/70 Heading B8T Snap fit caps of the domed type are specially formed so that they have good stability when stacked for use in mechanical cap applying machines. A rib (32) is provided in the skirt (30), Fig. 2 (not shown), to produce a snap fit over rounded portion (14) of the container. When stacked the flange 38 of a lower cap engages the lower side 36 of a rib in the skirt of the upper cap. In a second embodiment, ribs are provided on the outside of the conical portion of the caps to prevent the caps sticking together when stacked.
Patent GB-404491-A (GB)
Title: Improvements in or relating to holders or distributors for powders or granular material
IPC: A47G19/24
Filed: 1933-03-13
Abstract: 404,491. Powder distributers. ROGERS, F. H., 181, Queen Victoria Street, London.-(Metallwarenfabrik S. Merkl; 34A, Gertrudstrasse, Nuremberg, Germany.) March 13, 1933, No. 7603. [Class 18.] A powder distributer comprises a container closed at its lower end by a removable cap q, and formed at its upper end into a neck in which a conical stopper l is seated. The stopper is loosely mounted on a pin m to the lower end of which a stop n is fixed so that, when the container is inverted to discharge some of the contents, the stopper falls away from the delivery opening and the stop engages the neck of the container. By tightening a nut p on the pin until the stop n bears against the neck, the stopper will constitute a closure for the container to enable it to be transported.
Patent GB-579256-A (GB)
Title: Tone control arrangements for audio frequency electric wave amplifiers
IPC: H03G5/08
Filed: 1944-04-25
Abstract: 579,256. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). April 25, 1944, No. 7663. [Class 40 (v)] In an amplifier, a tone control circuit is associated with a negative feedback circuit, so that there is a cut-off in the higher audio frequencies when the adjustable element of the tone control is moved in one direction and a rising gain in the higher frequencies when moved in the opposite direction. When the potentiometer slider SL of the tone-control circuit is in its upper position and condenser C1 connected to ground, the attenuation introduced into the forward amplifying path by the tone control increases as the signal frequencies increase. By introducing R4, C2 and the lower part of R3, an attenuation is introduced into the feedback path of valve V1 which also increases as the frequency increases. With the slider in the top position, the rate of increase of attenuation in the forward amplifying path is a maximum and the rate of increase of attenuation in the feedback path is a minimum so that the gain will decrease with frequency, thus causing a cut-off in the higher frequencies. As the slider is moved downwards, these rates of increase of attenuation change in opposite directions, so, that when the slider is at the lower end of R3 the rate of increase of attenuation in the forward amplifying path is a minimum and the rate of increase in the feedback path is a maximum, resulting in an increase of effective gain with frequency. At some intermediate point the gain is substantially uniform.
Patent GB-762599-A (GB)
Title: Improvements in or relating to ammunition magazines for fire arms
IPC: F41A9/65
Filed: 1954-03-16
Abstract: 762,599. Magazines for firearms. PATCHETT, G. W. March 15, 1955 [March 16, 1954], No. 7690/54. Class 119. Relates to a magazine comprising an elongated casing 10 Fig. 1 in which the rounds 14 arranged one above the other or in staggered rows are urged towards the open end by a spring 11, the open end of the casing being arranged to be held in a socket in the firearm by a releasable detent so that a slot in a retaining flange at the open end is in the path of a reciprocable breech block which forces the outer round from the magazine into the breech. In order to ensure that, when the magazine is full, there is still a certain degree of resilient yield of the spring so that the detent can be engaged when the breech block is in its forward position and also to prevent the breech block from jamming during its reciprocatory movement, releasable means are arranged to restrict the capacity of the magazine until its insertion into the socket, when the means is released and the capacity increased to provide the required degree of resilient yield of the spring. The spring 11 is connected to a metal platform 12 carrying roller 13 supporting the rounds 14, the end of the platform 12 nearest the curved wall 18 of the casing 10 being rounded at 16 Fig. 3 to provide gaps 17 between it and the casing walls. The curved wall 18 has an arcuate slot 20 Fig. 2 at a location such that when the platform 12 is moved adjacent the slot, the capacity of the magazine is sufficient to accommodate a certain number of rounds. A rotatable disc 22 mounted on the outside of the wall 18 has a peg 23 which projects through the slot 20 into the casing. A resilient rod 26, formed wholly or partly of helically wound wire 28, is connected at one end 24 to the disc 22 and extends through a guide 29; the rod 26 has an enlarged head 32 and a compression spring 31 is located between guide 29 and head 32. Normally the spring 31 retains the peg 23 at the end of the arcuate slot 20 which is so disposed that pressure on the platform 12 by the insertion of the rounds does not rotate the disc but forces the peg to one end of the slot. The head 32 is arranged to engage the edge of the socket 33 of the firearm when the magazine is pushed home and causes rotation of the disc 22 ; this brings the peg 23 out of contact with the platform 12 into one of the spaces 17 Fig. 3, thus permitting the platform 12 still further to compress the spring 11, and providing further capacity in the magazine. The disc 22 and peg 23 are restored to their original positions on removal of the magazine. Specifications 615,466, 615,471 and 692,768 are referred to.
Patent GB-1075671-A (GB)
Title: Improvements relating to pulley blocks
Inventor: MAISEY ALBERT JOHN
IPC: B66D3/04
Filed: 1963-02-26
Abstract: 1,075,671. Fairleads. FAIREY ENGINEERING Ltd. May 25, 1964 [Feb. 26, 1963], No. 7705/63. Heading B8B. A guide for a cable 10, Fig. 1, comprises an endess conveyer chain system of grooved elements 24 moving around a track 17 on rollers 34 and forming a continuous arcuate support surface over a short region 20. Pin-and-slot connections permit a straight return run over the region 21.
Patent GB-456871-A (GB)
Title: Improvements in and relating to boxes and the packing thereof for storage or transport
IPC: B65D5/38
Filed: 1936-03-16
Abstract: 456,871. Nesting collapsable cardboard &c. boxes. WATSON, V. H., and WADDINGTON, Ltd., J., Wakefield Road, Leeds. March 16, 1936, No. 7798. [Class 18] Collapsable cardboard &c. boxes are formed with two permanently erected sides 2, Fig. 3, inclined towards each other and connected at their converging ends or connected at such ends to a permanently erected third side 3, the other side 4 being hinged along a folding line so that the boxes may be nested in the manner shown. A sheath 7, Fig. 4, may be employed to contain the nested boxes. Another construction is shown in Fig. 7, the nested boxes being hung on a supporting member 19 which may be mounted in a packing case. Square or rectangular boxes may be made nestable as shown in Figs. 10 and 11, and the nested bodies may be packed in a storage case.
Patent GB-195091-A (GB)
Title: Improvements relating to automatic steering devices for coupled vehicles
IPC: B62D13/04
Filed: 1923-03-19
Abstract: 195,091. Jonkhoff, H. W. March 20, 1922, [Convention date]. Compound or articulated road vehicles and road trains and couplings therefor. - In automatic steering connections between coupled vehicles, the pivoted coupling point is subject to control transversely by circular members each slidably connected to a truck. The two pairs of wheels in each truck are connected so as to turn oppositely, The two trucks, Fig. 1, are coupled to one another by members 3 having springs which allow variations in length, the members being pivoted to the trucks at points 17 and to one another at the point 5, shown also in Figs. 2 and 5, the wheels of each truck being swivelled for steering by these members. The pivot point 5 is constrained to coincide with the point of contact of the common tangent to the two circularly-shaped members 7, 8, each of which is connected by transverse pivots 11 to members 13, 14, 15 approximately of U shape and adapted to slide longitudinally in the vehicle frames. The pivot 5 slides between the member 7, 8 and a guide 6 mounted on the pivot carries rollers 9, 10 which keep the member 7, 8 from moving apart. To allow relative vertical movements between the trucks in accordance with road irregularities, the pivot 5 forms the connection between two short links 19, 20, each of which is connected to a transverse pivot 18 in the flared end of its member 3.
Patent GB-1117175-A (GB)
Title: Improvements in devices for facilitating movements of wheeled hand vehicles up and down stairs
IPC: B62B5/02
Filed: 1967-02-20
Abstract: 1,117,175. Moving trolleys over stairs, wheels. F. WOLFF. 20 Feb., 1967, No. 7905/ 67. Headings B7C and B7D. A device for facilitating the passage of a hand trolley over stairs comprises a pair of rotary members each having five radial spokes 7 on the outer end of each of which is mounted a roller 8. The rotary members are mounted on a common axle 6 which ,is mounted in crank arms 5 pivoted to brackets 3 which are connected to the trolley 1 by clamp shells 3a, so that the rotary members can assume an operative position resting against abutments 3c, or an inoperative position wherein the axle rests upon the brackets 3. The trolley comprises a frame 1, load platform 1a and wheels 1b.
Patent GB-577398-A (GB)
Title: Selenium rectifier temperature indicator
IPC: H01L21/06
Filed: 1944-04-28
Abstract: 577,398. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd. April 28, 1944, No. 7986. Convention date, May 1, 1943. [Class 37] A selenium rectifier comprises a selenium layer 2, located between a base plate 1, and a counter-electrode layer 3, the latter having a small aperture 4 through which the fused portion 5 of thermocouple wires 6, 7 is embedded in the exposed area of the selenium layer to provide temperature indication means.
Patent GB-1119713-A (GB)
Title: Improvements in or relating to turret machine tools
IPC: B23B3/16
Filed: 1966-02-24
Abstract: 1,119,713. Lathe details. IAN NICKOLS Ltd. 22 May, 1967 [24 Feb., 1966], No. 8140/66. Heading B3T. A turret indexing control system includes a first switch 2 which is automatically operated at the completion of the return stroke of the turret and a second switch 3 which is normally connected to a relay 6 which when energized, i.e. through switch 2, causes the turret to begin to move forward which movement continues till switch 2 is released the turret then returning and indexing to the next station. This process is repeated until the correct turret position for the commencement of a working cycle is reached at which stage switch 3 is connected, e.g. by means of a cam carried by the turret, through contacts 3b to a relay 5 which operates to initiate the next working cycle.
Patent GB-566248-A (GB)
Title: An improvement in or relating to fire-fighting systems or appliances
IPC: A62C99/00
Filed: 1943-05-22
Abstract: 566,248. Fire-extinguishing. NUSWIFT ENGINEERING CO., Ltd., and HENSHAW, T. A. May 22, 1943, No. 8166. [Class 47 (ii)] A gaseous or liquid fire - extinguishing medium under pressure is confined by a valve which is held in operative position in an undistorted condition by fusible metal, so that in normal temperature conditions the fusible metal is not required to withstand the whole pressure of the medium. As shown in Fig. 1, a discharge head b with discharge nozzle c is screwed to a spigot a<2> on a fitting a adapted to be secured by a spigot a into a delivery pipe or outlet opening of a container for pressure medium. A metal plug member d with circumferentially spaced spring leaves d<1> is secured by a metal plug f which spreads the leaves d<1> to seat in an annular recess or depression e in the bore a<3> of the fitting a, and the plug f is normally retained in this position by fusible metal run between the plug and the leaves d<1>. The plug f or the fitting a in the vicinity of the recess e is heated by passage of current through a resistance wire, and, when the fusible metal melts, the pressure medium forces the plug axially, by causing the leaves d' to be forced inwardly out of the recess e, into a chamber bl in the head b. In a modification, Fig. 2, leaves j<1>, provided on an outlet passage j for the medium, are bent inwardly over the solid plug member d and normally retained in this position by fusible metal. Fig. 3 shows a further modification where a series of loose leaves m are held in an annular recess j<2> or in a series of spaced recesses and held in place by fusible metal to normally hold a valve or plug d in closure position in a passage j.
Patent GB-760506-A (GB)
Title: Improvements relating to voltage regulators
IPC: G05F1/52
Filed: 1954-03-22
Abstract: 760,506. Automatic voltage control systems. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WHEATLEY, J. D. Feb. 4, 1955 [March 22, 1954], No. 8265/54. Drawings to Specification. Class 38 (4). In an automatic voltage regulator of the kind disclosed in Specification 677,673, in which a cathode-coupled pair of valves forms the voltage error measuring element, a datum shift is effected by connecting a preset D.C. bias voltage in series with the voltage to-be measured, this bias being tapped off the potential divider which,.as in Fig. 1 of Specification 677,673 is connected across the H.T. line.