baber/WOPTO huggingface dataset:
Patent GB-278110-A (GB)
Title: Improvements in time alarm and indicating apparatus
IPC: G04C21/32
Filed: 1926-07-13
Abstract: 278,110. Peacock, D. S., and Thomas, C. July 13, 1926. Time-alarms.-Apparatus for indicating the duration and number of games played on billiard tables, tennis courts, &c., comprises a time switch having fixed contacts connected to a selector switch, a plurality of contacts on each selector switch with the corresponding contacts wired to common bus-bars, a signal device wired to each bus-bar, and an indicator connected in parallel with each signal device. The indicators are coil actuated, and a restoring coil is provided, being energized by means of a push-button and a second selector switch. An apparatus for use with four billiard tables, &c. is shown in Fig. 1, four bells and four indicators being provided, though only the connections for bell and indicator 4 are shown. The time-switch comprises a clock 5 whose hand 6 establishes contact through fixed contacts 2 placed at minute intervals with terminals of a selector switch 17. Four spring fingers 31, 36, 37, 38 are associated with each terminal, and connection can be made at any of the sixty terminals between the terminal and any one of the fingers by means of a plug. One plug is provided for each table and each has a conducting core 28 connecting a conducting ring 30 corresponding in position to the finger required with a part 29 contacting with the socket of the terminal 15<a>. If, therefore, play is to continue on a table until a certain number of minutes past the hour the plug 4<a> corresponding to that table is placed in the socket of the selector switch corresponding to that number of minutes, and when the hand 6 reaches that time, a circuit is completed, the corresponding bell rings, and the coil 9 of the corresponding indicator moves the indicator. To reset the indicator, the plug is removed and placed in a second selector switch 23 to complete, on the pressing of the appropriate push-button switch 22, the circuit of a restoring coil 19. At the same time, a counter 25 operated by an electromagnet 24 registers that another game has been completed.
Patent GB-760315-A (GB)
Title: Improvements in and relating to the stabilisation of organic compounds
Inventor: JOHNSON LESLIE VICTOR
IPC: C11B5/00
Filed: 1952-07-11
Abstract: The invention comprises certain diphenylamine derivatives as new compounds, namely 4 - N - isopropylaminodiphenylamine, 4 - N - sec. - butylaminodiphenylamine, 4 - N - methylisopropylaminodiphenylamine, and 2 - N - sec. - butylaminodiphenylamine, and also a method of preserving aldehydes, petrols, (see Group III), mineral oils, fatty oils, and ethers from deteriorateion by oxidation by the incorporation of up to 2 per cent, preferably 0.001-1 per cent, of an aminodiphenylamine of the formula C6H5.NH.C6H4.NRR1, in which R is hydrogen, alkyl or aralkyl, and R1 is alkyl or aralkyl. Diphenylamine other than the above which may be so incorporated are the 4-N-benzylamino- or dibenzylamino, 4-N-(3,5,5-trimethylhexyl) - amino -, 4 - N - dimethylamino -, 4 - N - methylamino-, 2- or 3-N-sec.-butylamino-, and 4 - N - diphenylmethylamino - diphenylamines.  The diphenylamines are made by (1) reductive alkylation of an amino-, nitro-, or nitrosodiphenylamine by hydrogenation in presence of an aliphatic or aromatic aldehyde or ketone, or (2) reacting alkyl- or aralkyl-substituted nitrosoaniline with phenylhydrazine.  In examples of (1), 4-nitroso-, 4-amino-, and 4-nitro-diphenylamine are each hydrogenated in presence of a platinum-on-charcoal catalyst and of methyl ethyl ketone to give 4-N-sec.-butylaminodiphenylamine, and 4-aminodiphenylamine is similarly hydrogenated in presence of benzaldehyde to 4-N-benzylamino- and 4-N-dibenzylamino-diphenylamine, and as an example of (2), 4 - nitroso - N - methylisopropylaniline is reacted with phenylhydrazine in alcohol and ether.  Examples also describe the stabilization of nonaldehyde, gasolines, a turbine oil, and boiled linseed oil with the above diphenylamine derivatives.ALSO:Petrols, mineral oils and fatty oils are preserved from deterioration by peroxide formation by incorporation of up to 2 per cent, preferably 0.001 to 1 per cent, by weight, of an aminodiphenylamine (see Group IV(b)) of the formula C6H5NH.C6-H4NRR1 in which R is hydrogen, alkyl, or alalkyl, and R1 is alkyl or aralkyl. Examples describe (1) the effect of adding 4-N-sec-butylamino-diphenylamine, and also 4-N-dimethylamino-, 4-N-methylamino-, 4-N-isopropylamino- 4-N-benzylamino-, 4-N-dibenzylamino, 4-N-(3, 5, 5-trimethylhexyl)amino-, 4-N-methylisopropylamino-, 2-N-sec-butylamino-, 4-N-diphenylmethylamino-diphenylamines to refined gasoline, (2) the addition of 4-N-isopropylamino-diphenylamine to a turbine oil and to boiled linseed oil.
Patent GB-283604-A (GB)
Title: Apparatus for controlling the liquid level in boilers and other vessels
IPC: F22D5/14
Filed: 1926-07-14
Abstract: 283,604. Marks, E. C. R., (Northern Equipment Co.). July 14, 1926. Levels, regulating.- In apparatus for regulating the water level in a steam boiler or other vessel, such as a steam condensate collecting vessel 14, Fig. 1, the pump supplying water to or withdrawing water from the vessel is driven by an electric motor controlled by a switch 22, which is operated through a lost motion device by a thermostatic tube 10 in communication with the vessel above and below the water lever therein. The free upper end of the thermostatic tube is connected to an arm of a bell-crank lever 23, from the other arm of which extends a bar 27 carrying a link 28 formed with a slot 33, in which engages a pin on a lever 29 operating the pivoted switch arm 36 through a tumbler lever 31. The movements of the bar 27 are limited by upper and lower stops. To prevent damage to the thermostatic tube due to abnormal expansion or contraction, the lower end 50 is secured to the frame 11 by a rod 49, Fig. 4, which may move inwards and outwards against the compression of springs 54, 56. The spring 54 is compressed between a flange 53 on the end of the rod 49 and a nut 48 secured to a cylinder 47 around the springs. The spring 56 is compressed between a flange 57 on a tube 46 secured to the frame and the inner end of the cylinder 47. 'The frame carrying the thermostatic tube may be formed of two channel irons bolted together.
Patent GB-238858-A (GB)
IPC: G03B21/46
Filed: 1925-07-10
Abstract: 238,858. Krupp Akt.-Ges., F. Aug. 22, 1924, [Convention date]. Kinematograph apparatus.-In apparatus comprising a rotary member which carries the intermittent sprocket and a Maltese cross mechanism, and is rotatable to adjust the picture masking, the shaft operated by hand to effect the adjustment carries two gear wheels, one of which moves the rotary member and the other adjusts a movable member outside the rotary member to preserve synchronism between the shutter and the feed mechanism. As shown, the rotarv member B carries coaxial shafts c<1>, d<1>. The shaft c<1> carries a driven pulley C, a spur wheel c<2> driving a wheel e<1> secured to the pin wheel e<2> of the Maltese cross mechanism, and a helical gear c<3> driving a. helical gear i<1> on 'a vertical shaft J geared to the upper and lower sprockets G, H and the shutter shaft f<1>. The shaft d' carries the Maltese cross d<2> and the intermittent sprocket D. Masking is adjusted by rotating a knurled head Q on a. shaft q<2> carrying a toothed wheel q<3> engaging a toothed sector b<1> on the member B. The shutter shaft f<1> carries a wheel m<1> driven by the shaft J, the wheel being rotatably loose on the shaft and having a hub M provided with a nose m<2> engaging in a helical groove in a sleeve N. A nose f<3> is also provided on the shaft f<1> and engages in an axially extending groove in the sleeve N. The sleeve N is surrounded bv a socket P which is non-rotatable but is axially movable by means of a pinion q<1> on the shaft q<2> and a rack p<1>. Movement of the socket P by the shaft q<2> during adjustment of the masking, produces axial displacement of the sleeve N, with consequent relative angular displacement between the wheel m<1> and the shut. ter shaft f<1>. In a modification the sleeve N and socket P are replaced by a single rotary member having the two grooves and encircling teeth. Specifications 10779/10, 5535/13, 160,263, and. 166,882 are referred to.
Patent GB-460557-A (GB)
Title: A two-coloured or multicoloured bicycle tire and the method of manufacturing such tires
IPC: B29D30/72
Filed: 1936-06-25
Abstract: 460,557. Pneumatic tyres. NAAMLOOZE VENNOOTSCHAP HOLLAND RUBBERFABRIEK RADIUM. June 25, 1936, No. 17733. Convention date, July 2, 1935. [Class 144 (ii)] Coloured bands such as 2, Fig. 1, 4, Fig. 2, under a transparent rubber covering 3 are applied to the casing 1 in the form of calendered rubber strips.
Patent GB-713509-A (GB)
Title: Improvements in means for operating sliding elements such as water-tight doors
IPC: B63B19/00
Filed: 1952-07-14
Abstract: 713,509. Linkwork. MERCIER, J. July 14, 1952 [July 17, 1951], No. 17755/52. Class 80 (3) [Also in Group XXV] . A sliding door 20 is operated by force applied at 24, Fig. 3, to a lever 22 pivoted at 23 to the door and adapted to fulcrum about either one of a pair of fixed stops 25, 26 provided on one side of the pivot 23, or about a fixed stop 27 on the other side of pivot 23. The arrangement is such that, in the opening direction F, the lever fulcrums on stop 25 and functions as a lever of the third order, while in the initial part of movement in the closing direction the lever fulcrums on stop 27 and moves between the stops 25, 26 to function as a lever of the second order to apply additional force for unseating the door, the lever thereafter fulcruming on the stop 26 to function as a lever of the third order. In a modification, Fig. 6, the pair of stops is provided by the ends of a slot 42 in a fixed bracket 43. A link 45 has a pin 46 at one end engaged in the slot, and is pivoted at the other end to the upper end of a lever 38 pivoted at 39 to a door 30. The lower end of the lever fulcrums on a stop 47 in the initial part of the opening movement. The piston rod 36 of a hydraulic jack is pivoted at 37 to the lever. In a further modification one end of the lever is slotted to receive a fixed pin, and the lever is pivoted to a link pivoted to the door. In yet further modifications the lever is slotted to receive a pin fixed to the door, or is provided with a roller engaged between parallel guide surfaces provided on the door.
Patent GB-187667-A (GB)
Title: Improved construction of electrical heating elements
IPC: A47J27/00
Filed: 1922-03-29
Abstract: 187,667. Weekes, W. March 29, 1922. Heating by electricity. - An electric heating element comprises a hollow circular casing 1 provided with a ring groove 3 containing a resistance element 9, and a detachable cover 7, a hollow extension 6 integral with or secured to the outside of the casing being arranged normally to the groove and provided with means 12, 13 for securing it to the vessel 11 with which it is to be used. The element 9 consists of resistance wires wound on a piece of mica shaped to the groove and surrounded with further sheets of mica. Spiral or zig-zag fins may be attached to or formed on the casing 1, and the extension 6 or nut 13 may carry a switch plug or coupling. In a modification the casing has a disc flange iormed at the bottom and a flanged cap with a threaded groove is screwed on the casing at the top, the disc flange and the caps being perforated to facilitate circulation.
Patent GB-790138-A (GB)
Title: Improvements in spring-clamp joints for releasably securing artificial teeth
IPC: A61C13/265
Filed: 1955-06-21
Abstract: 790,138. Artificial teeth. MORANDI, F. June 21, 1955, No. 17888/55. Class 81 (2). A spring clamp joint for removably fitting false teeth to a capped pillar tooth provided with a longitudinal socket having walls converging towards a longitudinal slot is characterized in that the spring clamp comprises a cylindrical shell with a closed bottom to be fastened in a false tooth, an outer head projecting from the shell forming one clamp jaw and slidably fitting the groove of the socket, and a counter-head mounted axially of the shell and pressed by a spring against the outer head to form the second clamp jaw, the arrangement being such that when the outer head is inserted into the groove, the counter-head is clamped against the edges of the slot. The pillar tooth 2 is provided with a dovetail-like slot 1. The shell 8 is mounted within an artificial tooth and houses a shank 4 of the head 3 which fits into the socket 1. The counter-head 9 is provided on a bushing 15 slidably carried by the shank 4 and is pressed towards the head 3 by a spring. 6 which bears against a pin 7 on the shank 4 so that the edges of the longitudinal slot of the socket 1 are clamped between the head 3 and the counter-head 9. A spring 16 is disposed between the pin 7 and the bottom of the shell 8 and the bushing 15 is prevented from leaving the shell 8 by a forked pin 10 inserted in a groove in the shell mouth 108 which is U- shaped. The counter-head may be in the form of a ball 309 (Fig. 8), slidably mounted in the shank 4 which is provided with a head 203 which is frusto-conical with a rounded convex base. A nut 107 threaded on the shank 4 may replace the pin 7. In alternative constructions, the head may be spherical, cylindrical or trapezoidal in shape, the socket 1 being correspondingly shaped, and the shell 8 may be inclined to the longitudinal axis of the socket slot. A ball-shaped counter-head may be retained by a restriction at the mouth of the shell and the spring 16 may be omitted (Figs. 10-16, not shown). In another construction, a cylindrical head 303 (Fig. 18) is secured to the shell 208 by ribs 18, the counterhead being in the form of a ball 409 or a cylindrical plug with a convex end, which is pressed by the spring 6 against the edges of the slot. A horizontal supporting plate 401 is provided at the bottom of the socket against which bears a spring-pressed plunger 19 housed in the head 303. The shell 208 is fitted in an outer shell 26 embedded in the artificial tooth 13 and is secured therein by a screw 28 inserted in a radially projecting hub 27 provided on the outer shell 26.
Patent GB-873025-A (GB)
Title: Improvements in methods for the reduction and combustion of smoke and gases producedby utility fires and the like
Filed: 1957-09-11
Abstract: 873,025. Consuming smoke. WOODHEAD, R. G. Sept. 11, 1957, No. 17904/56. Class 126. A smoke consuming device for an open fireplace comprises a casing mounted at the rear of the fireplace and having two compartments, one for heating air and one for heating gas or other fuel, the heated air and gas being discharged over the fire to burn the smoke. Gas is supplied to an upper compartment of a box 1 fitted to the rear of a fireplace and air from outside the room is supplied to the lower compartment. Holes at the front of the casing distribute the gas and air to fumes rising from the fire to consume the smoke. A baffle 4 above the gas outlets is vertically adjustable. Pipes leading from the upper and lower parts of the box 1 supply gas and air to a burner at the front of the grate, comprising a gas supply tube 6 inside an air supply tube 5, Fig. 5, and the outer tube 5 is rotatable so that the flame can be directed to any part of the fire.
Patent GB-546029-A (GB)
Title: Improvements relating to circuit arrangements for thermionic oscillation generators,particularly for radio communication systems
IPC: H04L27/02
Filed: 1940-12-20
Abstract: 546,029. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., HOLLAND, J. D., and ROBINSON, D. D. Dec. 20, 1940, No. 17950. [Class 40 (v)] A generator produces alternatively high or audio frequency by the provision of a circuit tuned to an audio frequency arranged to be connected across the high frequency regenerative path so as to effectively short circuit this path. The Figure shows an audio tuned circuit L2, C2 adapted to be connected between the control and screen grids of a pentode valve. The generator may produce the high frequency oscillations in a supersonic heterodyne receiver and the audio oscillations to modulate a transmitter, the high frequency oscillations being derived from the untuned circuit L3 and the audio frequency oscillations from resistance R2.
Patent GB-1268501-A (GB)
Title: Self-priming centrifugal pump
Inventor: PRONI OSCAR
IPC: F04D29/22
Filed: 1969-04-08
Abstract: 1,268,501. Bearing. COULTER ELECTRONICS Inc. 8 April, 1969 [9 April, 1968], No. 17960/69. Heading F2A. [Also in Divisions F1 and G1] In a centrifugal pump (see Division F1), the pump shaft 16 is supported on a bearing 74, 84, the portion 84 of which is formed in a sleeve 76 which, by virtue of its threaded connection with a sleeve 78, can be adjusted to vary the clearance between the pump impeller 14 and the upper end of sleeve 78.
Patent GB-497766-A (GB)
Title: Improvements in and relating to light structures
IPC: B64C1/06
Filed: 1937-06-28
Abstract: 497,766. Aircraft structures. SCHMID, A. June 28, 1937, No. 17969. Convention date, July 9, 1936. [Class 4] [Also in Group XXVIII] Light structures, such as parts of aircraft, are formed from tubes made of cellulose deriva. tive, e.g. acetyl cellulose, which may be reinforced by metal wires or fabric and are stuck together by acetone, methyl alcohol or other solvent. The tubes 1 ... 6, Fig. 2, may be arranged in bundles with their axes parallel, the assembly preferably being provided with an enveloping jacket 7 of sheet cellulose acetate or of paper impregnated or coated with cellulose derivative. Fig. 3 shows two tubes 8, 9 stuck together at 10 to form a T-piece, and Fig. 4 a structure comprising longitudinal tubes 11, 12, 13 connecting cross tubes 14, 15, 16 and a jacket 17. The hollow spaces inside the tubes and /or between them and /or between the tubes and the jacket 7 or 17 may be wholly or partly filled with a light porous substance such us solidified glue foam, and the jacket is preferably coated with gum lac or other waterproof varnish or with a mixture of a cellulose derivative with a pigment such as titanium white, lithopone, &c.
Patent GB-133203-A (GB)
Title: Improvements in the Construction of Carpenters' Joints.
Inventor: BURNS CHARLES
IPC: F16B12/14
Filed: 1918-11-04
Abstract: 133,203. Burns, C. Nov. 4, 1918. Bolts; bolting; locking bolts.-The two parts of a dowelled joint are connected together by a bolt d secured to one part by a pin f, Fig. 1, or by a removable head g, Figs. 8 and 9. The head has a key-hole slot and by inserting the bolt and giving it a partial turn it is impossible to remove the head by screwing up the nut e. A tool g<1>, Fig. 4, serves to prevent the head from turning also to withdraw the head from the hole.
Patent GB-315353-A (GB)
Title: Improvements relating to an udder cannulas
IPC: A01J3/00
Filed: 1929-06-12
Abstract: 315,353. Aas, N. July 12, 1928, [Convention date]. Cow-milkers.-A cow-teat cannula comprising a collar, which limits the inward movemnt of the cannula into the teat, and a swelling or enlarged part on the body, which offers resistance to the extraction of the cannula from the teat, is provided with means for adjusting the swelling relatively to the collar. The cannula may consist of a swelled exterior part 1 within which is disposed an axially adjustable tube 2 carrying the collar 3; the inner screw-threaded end of the tube is formed with slots 7 which can be made to coincide with the openings 5 of the outer part, or can be turned away from these openings. Alternatively, the tube may be a friction fit within the swelled part of the cannula. The Specification as open to inspection under Sect. 91 (3) (a) comprises also further modifications wherein the tube passes entirely through the swelled part which is bored through from end to end. This subject-matter does not appear in the Specification as accepted.
Patent GB-459049-A (GB)
Title: Improvements in or relating to explosion pot electric switches
IPC: H01H33/75
Filed: 1935-06-24
Abstract: 459,049. Fluid - blast switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GARRARD, C. C., c/o General Electric Co., Ltd., Witton, Birmingham. June 24, 1935, No. 18063. [Class 38 (v)] In an explosion pot switch of the side-blast type having at least two breaks in series, the time between contact separation and the instant when the side outlet is uncovered for one break is different from the corresponding time for another break. In the construction shown, the fixed contacts 3 are housed in an explosion pot comprising a bell-shaped member 2 of, for example, non-magnetic steel, to which is clamped a structure having a continuous side outlet or, as shown, an outlet comprising nozzle-shaped passages 5 formed by cutting away insulating plates 4 which alternate with uncut plates 14. The movable contacts 9, 10 are a close fit in the lower closures 13 and are of rectangular section, opposite sides of which are engaged by the contact-members 17, 18 forced inwardly by springs 19. The pot on the left is for interrupting heavy currents, whereas that on the right, having the member 1 and the plates 4, 14 transposed, is for light currents. The movable contacts 9, 10 may be adjustable so that one separates from its co-operating contact before the other. The Specification refers also to parallel connections of explosion pots. The Provisional Specification refers to different locations of the contacts in the explosion pots in order to obtain the different separations.
Patent GB-1260728-A (GB)
Title: System for controlling dc power
Inventor: AKAMATSU MASAHIKO
IPC: H02M3/10
Filed: 1969-04-09
Abstract: 1,260,728. D.C. switching systems; control of D.C. motors. MITSUBISHI DENKI K.K. 9 April, 1969, No. 18090/69. Headings H2H and H2J. A supply system for a D.C. load includes a number of semi-conductor switches each serially connected with a reactor winding. The switches are operated in a regular sequence, and the windings are magnetically coupled so that their currents are always substantially equal. In the circuit shown in Fig. 1, a load 5 which may be a D.C. motor on an electric vehicle is supplied from a source 1 by way of thyristor or transistor choppers 2a, 2b. These choppers are switched on and off cyclically with a delay between the switching of-one chopper and the next. Successive "on" periods may overlap or not, and the voltage applied to the load is determined by the relative timing of the switching operations. The magnetic coupling between reactor windings 4 may comprise a number of magnetic paths, one of which is coupled to the others by air gaps. The system is designed to minimize A.C. components in the load voltage and current without the need for massive filters
Patent GB-111731-A (GB)
Title: Improvements in and relating to Driving Mechanism for Cycles.
Inventor: SMITH STEPHEN FRANCIS
IPC: B62M1/24
Filed: 1916-12-18
Abstract: 111,731. Smith, S. F. Dec. 18, 1916. Treadle mechanism for cycles, of the kind described in Specification 7657/96, employing treadles j suspended from the front and rear by wires h<2> and reciprocating driving cords or wires h, is fitted with driving- drums g so constructed that, at the beginning and end of the foot stroke, the wires h pull from a small diameter whereas, at the middle of the stroke, the operative diameter is larger. The drums are mounted within the fork limbs, and the lengths of the wires h are so arranged that they completely unwind for the purpose of limiting the foot stroke. In order to prevent lateral deflection of the wires h, they are passed between long rollers mounted in a bracket k. As shown, the wires h are each connected to a yoke h<1>, which in turn is connected to a cross-bar i<1> at the front of the machine by a pair of laterally-spaced wires h<2> carrying the treadle j. For taking up the slack of the wires when the machine is not in use, hook i<4> on the bar i<1> are engaged with eyes on plates m clamped to the wires. The treadles are automatically raised after depression by a wire l, which is secured at its ends to drums g<1> fixed to the driving-drums and is passed over spacedguide-pulleys l<2> on the rear fork.