baber/WOPTO huggingface dataset:
Patent GB-108463-A (GB)
Title: Improvements in or relating to Micro-telephones for use in Automatic Exchange Systems.
Inventor: SYMES HENRY
IPC: H04M1/03
Filed: 1917-05-05
Abstract: 108,463. Symes, H. June 26, 1916, [Convention date]. Telephone h a n d sets; automatic exchange systems; impulse-transmitters. - The handle-switch of a hand-combination instrument for use in automatic exchange telephone systems is locked in an intermediate position by a sliding weight, whereby the exchange may be held while the microphone circuit is open. The impulse-transmitter is mounted on the instrument. When the impulsetransmitter is in action, an arm on its shaft recedes from the contacts A<1>, Fig. 2, which are thus allowed to open and to cut out the receiver R'. The instrument is connected by a five-wire plug to a bell-box, Fig. 1, containing the bell B, the condenser C, the induction coil I, and a resistance R. A press-lever S in the handle of the instrument controls four switches, of which B' is normally closed, and L<3>, R<3>, P are normally open. When the lever S is pressed, the bell circuit is opened at the switch B', and the circuit of the receiver R' and induction coil secondary is closed at the switch R<3>. The closure of the contacts L<3> places a resistance R across the line L<1>, L<2>. The circuit of the microphone T includes the contact P, the inner side of Lever S, the contact L<3>, a variable portion of resistance R and the primary of the induction coil 1. When the press-lever S is released, the microphone circuit is opened at P, and conversation in the vicinity of the microphone cannot be overheard at the other end of the line. In order that the exchange may be held during such intervals, the instrument is inverted and a weight W falls behind the lever S and holds it in an intermediate position in which contact P is open but contacts R', L<3> remain closed.
Patent GB-1209597-A (GB)
Title: Electric motor drive for a vehicle
Inventor: TINLIN FRANK
IPC: H02K7/14
Filed: 1967-05-19
Abstract: 1,209,597. Electrically-propelled vehicles. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. 2 Feb., 1968 [10 Feb., 1967], No. 6563/67. Heading B7H. [Also in Division H2]  Drive shafts 18, 19 for a pair of vehicle wheels are interconnected by a differential gear located in the rotor 13 of an electric motor. The stator 10 of the motor is attached to the vehicle chassis and the shafts have universal joints at their inner ends, their, outer portions being resiliently supported on the chassis.
Patent GB-470241-A (GB)
Title: Improvements relating to portable huts, tents and the like
IPC: E04H15/60
Filed: 1937-03-05
Abstract: 470,241. Collapsable shelters ; hinged joints. SMITH, SIR J. J., and SMITH & CO. (LONDON E.), Ltd., J. March 5, 1937, No. 6582. [Class 20 (i)] [Also in Group XXV] A collapsable shelter of the type comprising a ridge-piece formed in two parts a, b hinged together at e and adapted to fold down at the centre, and a sliding bolt to engage and lock both the parts, has a helical spring arranged to urge the bolt into the locking position to prevent accidental unlocking. An abutment n in the member b is provided with a projection m around which passes one end of a helical spring k, the other end of which passes around a similar projection l on the end of the locking bolt. The member b is slotted at g to receive a handle h by which the looking bolt is actuated.
Patent GB-947123-A (GB)
Title: Carbon-silicate complexes
IPC: C04B35/52
Filed: 1962-02-20
Abstract: Lattice layer silicates, e.g. vermiculite, montmorillonite and hydrated halloysite are heated with glycerol or a glyceride to a temperature and for a time sufficient to form a " sandwich structure " in which one or more layers of glycerol or glyceride are intercolated between adjacent silicate layers, and to decompose to elemental carbon the intercalated glycerol or glyceride in situ. Preferably, the material is heated to at least the boiling point of the glycerol or glyceride, the final stage being performed in a nitrogen or other inert gas atmosphere.  The materials may be pretreated with a strong dehydrating agent, e.g. concentrated sulphuric acid.  The product may contain up to about 20% by weight of carbon. Pretreatment of montmorillonite with aluminium, hydrogen or magnesium ions increases the colour intensity of the product.ALSO:Black pigments are produced from lattice layer silicates by heating with glycerol or a glyceride to form a "sandwich structure" which is further heated to decompose the intercalated glycerol or glyceride to elemental carbon.  Silicates specified are vermiculite, montmorillonite and hydrated halloysite, all of which may be pretreated with a strong dehydrating agent, e.g. concentrated sulphuric acid.  Montmorillonite may be pretreated with aluminium, hydrogen or magnesium ion to increase the colour intensity of the product.
Patent GB-1184282-A (GB)
Title: Zinc-Base Alloys
Inventor: EBORALL RICHARD JOHN LANE
IPC: C22C18/02
Filed: 1968-02-15
Abstract: 1,184,282. Zinc base alloy. BRITISH NON- FERROUS METALS RESEARCH ASSOCIATION. Feb.11, 1969 [Feb.15, 1968], No. 6644/68. Heading C7A. A zinc base alloy, for die-casting, having good creep resistance and dimensional stability, comprises: -  Cu 1-1À5% Ti 0À1-0À25% Cr 0-1-0-25% Al 0À005-0À04% Mg less than 0À01% the balance being zinc of 99À99% purity. It is preferred that the total Ti + Cr content should be 0À3-0À4%.
Patent GB-180755-A (GB)
Title: Improvements in apparatus for teasing and cleaning stuffing materials for mattresses and the like and for feeding the treated materials to the covers of said articles orto other enclosed spaces
IPC: B68G3/10
Filed: 1921-03-01
Abstract: 180,755. Broel, L. G. March 1, 1921. Openers, cleaners, etc.; feeding openers &c.- A machine for cleaning and teasing stuffing- materials and delivering it to the mattress, cushion, &c. to be filled comprises a chamber 4, Fig. 2 and a shaft 7 carrying beater arms 54. The chamber 4 is subdivided to comprise a feeding- compartment 22, a storage compartment 12, and a dirt compartment 14 fitted with a grid at the top and a drawer. Access is had to these compartments throught doors in the walls of the chamber. A passage 16 at one end of the grid chamber has an adjustable opening at one end to admit air, and is connected at the other end to a pipe and exhaust fan to deliver the teased material. The kapok or other stuffing-material in a bale is placed on a plate 21 in the ieedchamber. The plate 21 can be raised gradually by chains 39 operated from a shaft 38 driven by ratchet mechanism controlled by a cam on the shaft 7. The cam 27, Fig. 4, operates a lever 28 carrying a pawl 30 engaging a ratchet-wheel 31, which carries a pin 34 projecting into a slot in a lever 81. The lever 81 operates the ratchetwheel 37 on the shaft 38. A stop pawl 48, controlled by either the lever 59 or a linked lever at the other end of the chamber 4, prevents unwinding and can be released to allow the plate 21 to be lowered. Arms 52, Fig. 8, with pins 58, on the shaft 7 feed the material to the teasing-arms 54. The arms are secured in bosses 50 adjustable along the shaft 7. Loose stuffing- material can be fed on to the plate 21 in its raised position through a shoot which can be fixed in an opening in the wall of the chamber 4. The exhaust fan, which draws the treated material from the chamber 4 and delivers it to the mattress &c. to be filled, comprises a casing 64, Fig. 14, with intake and out-take openings 65, 66, and a plate 69 with ribs 70 disposed tangentially to the shaft 67. The ribs may be straight or curved or bent angularly near the ends. To allow the air to escape from the article to be filled the end of the delivery pipe 19, Fig. 19, is provided with a perforated sleeve 71 secured to the pipe. The mattress is attached to a sliding collar 72 positioned by pins passing through the collar and perforations in the sleeve. The mattress may be attached to the sleeve which may slide on the pipe 19.
Patent GB-1294136-A (GB)
Title: Electrophotographic compositions and their use
IPC: G03G5/06
Filed: 1969-02-07
Abstract: 1294136 Photoconductive composition OCEVAN DER GRINTEN NV 3 Feb 1970 [7 Feb 1969] 6802/69 Heading H1K A photoconductive composition comprises an insulating binder and an organic photoconductor having two phenyl nuclei joined by a bridging member wherein one of the nuclei is p-amino substituted and the bridging member is O, S, Se, Te, a plurality of these elements or a combination with a halogen. The p-amino substituent may include heterocyclic rings. Various specific examples wherein the bridging member is O, S, Se, Te, S-S, S-S-S, SO, SO 2 , Se-Se, SeO, SeO 2 , SeCl 2 , TeO, TeO 2 , Se-S, Se-S-Se, S-Se-S, Te-S, TeCl 2 , or TeBr 2  are given. The binder may be copoly styrene-butadiene, polyvinyl acetate-chloride, P.V.C., chlorinated rubber or colophony-maleate resin, other resins also -being mentioned. Sensitizing dyes such as rhodamine B extra, Crystal violet and Victoria blue B may be added to the composition. The composition is coated on to a support of paper or aluminium. In one embodiment a ground mixture of copolyvinyl acetate-chloride and 4,4<SP>1 </SP>- thiobis - [N,N - diethylaniline] is applied to a conductive plate, electrostatically charged, exposed and exposed particles removed.
Patent GB-190394-A (GB)
Title: Improvements in plugs for cleaning interiorly tubes of surfacecondensers or the like
IPC: B08B9/04
Filed: 1922-03-08
Abstract: 190,394. Arthur, R. C., Mannion, M., and Mannion, J. T March 8, 1922. Cleaning internally, non-rotary appliances for. - Relates to devices for cleaning condenser or like tubes by forcing plug through the tube by fluid pressure, and consists in forming the plug with end flanges 4 and a grooved cylindrical centre portion 2. The plug may be wholly or in part of rubber, with or without an admixture of an abrasive material, and may be formed with taper portions as at 3.
Patent GB-1018552-A (GB)
Title: Improvements relating to photo-sensitive silver bromide papers or films of the print-out type
IPC: G03C1/49
Filed: 1962-02-22
Abstract: 1,018,552. Photographic print-out materials. D.E.P. HAYWARD [MINNEAPOLIS-HONEYWELL REGULATOR CO], Feb. 22,1962 No. 6955/62. Heading G2C. A photographic print-out emulsion comprising silver bromide is sensitized with 0. 5 to 5 parts by weight of lead iodide and 5 to 30 parts by weight of lead bromide per 100 parts of silver bromide. The emulsion layer may be overcoated with a gelatine layer containing an alkali metal a ammonium formate. The emulsion binder may be starch, but it is preferably gelatine, which may contain hydroxyethyl starch. Details of the preparation of emulsions are given in which the lead iodide is added to the washed, precipitated silver bromide, the mixture is emulsified in a colloid mill with hydroxyethyl starch, gelatin is added and the emulsion is digested. After shredding and washing, the emulsion is remelted, the lead iodide is added, and the mixture is again cycled through a colloid mill. The exposed emulsions may be further processed by wet chemical methods.
Patent GB-980956-A (GB)
Title: Electrical switching arrangement
IPC: H03K3/26
Filed: 1962-02-23
Abstract: 980,956. Transistor pulse amplifier circuits; keying circuits. STANDARD TELEPHONES & CABLES Ltd. Feb. 23, 1962 [Feb. 28, 1961], No. 7066/62. Headings H3R, H3T and H4P. A bi-stable circuit suitable for use as a telegraph repeater comprises an amplifier fed from a source of oscillators through a gate and feeding a rectifier which provides both the output signal and a feedback signal which maintains the gate open when open and closed when closed. In Fig. 1 a sine or square wave signal is applied via C1 and a D.C. restorer C2, G1 to a transistor amplifier T2 the output of which is rectified and smoothed at G2, C3, R4 before application to a load R5, the voltage across the load being clamped at + 60 V. by a rectifier G3. The D.C. output is also fed through R6 to maintain a transistor T1 non-conducting. If a positive triggering pulse is applied via C5, transistor T1 is rendered conducting short-circuiting the input to the amplifier so that the rectified output voltage falls to zero. The voltage now fed back through R6 maintains T1 conducting so that the output remains zero. The circuit may be restored to the original state by applying a positive pulse to C5. Fig. 2 shows two such arrangements using transistors of opposite conductivity and operative alternatively so that rectifiers C3 clamp the voltage across the load R5 at + 60 V. or - 60 V. depending on which circuit is operative. Rectifiers G4 and G4 1  in the input circuit limit the amplitude of the A.C. signal applied through R9 and R<SP>1</SP>9.
Patent GB-248573-A (GB)
Title: Improvements in change speed gearing
IPC: F16H3/22
Filed: 1925-03-17
Abstract: 248,573. Royce, F. H. March 17, 1925. Variable-speed gearing comprising coupled gears slidable into mesh alternatively upon a splined shaft is modified so that the driving torque is transmitted squarely to the splines or the like on the shaft. The splined connection extending on one side only of the engaged gear is done away with. Thus the coupled gears c<1> c<2> are slidable on splines b' on the shaft b so as to engage respectively one at a time with wheels a a<1> fixed on another shaft. In one arrangement shown in Fig. 1, the splines b<1> between the gear positions are cut away on their flanks b<2> so that there is no contact with the splines except between the faces of the gear in action. In other arrangements, the coupled gears are free to move angularly relatively to one another. Thus in Fig. 3 there is a screwed connection e. The application to the pair of slidable idlers of a reversing train is described.
Patent GB-1255526-A (GB)
Title: Improvements in or relating to pigment compositions
Inventor: MCKAY ROBERT BRUCE
IPC: C09B67/22
Filed: 1969-08-13
Abstract: 1,255,526. Preparing flocculation resistant phthalocyanines. CIBA-GEIGY (U.K.) Ltd. 13 Aug., 1970 [13 Aug., 1969; 14 Feb., 1970], Nos. 40454/69 and 7216/70. Heading C4P. The invention comprises a process for the single stage production of flocculation resistant phthalocyanine pigment compositions wherein a flocculating phthalocyanine pigment is milled with a chloromethylated phthalocyanine pigment and an anine NH(R 1 )R 2  wherein R 1  is H, alkyl, or hydroxyalkyl and R 2  is alkyl, hydroxyalkyl, alkoxy-alkyl, aminoalkyl, cycloalkyl or aralkyl, or R 1  and R 2  together with the N atom form a heterocyclic radical. The phthalocyanines to be treated may be chlorinated (e.g. containing up to 10% chlorine) and may be metal free or metallized (e.g. Cu, Co or Ni), and preferred amines used are those where R 1  is H and R 2  is C 1 -C 20  alkyl, e.g. C 4 ; and R 1  and R 2  are both C 1 -C 6  alkyl. When a liquid grind is used, an excess of the amine required to fully react with the chloromethylated phthalocyanine is used, the milling taking place at 15-30 C. in presence of a diluent e.g. an aliphatic alcohol or ketone and sand, gravel or glass beads as grinding aid. When a substantially dry grind is used milling is carried out in presence of a solid particulate grinding aid which is removed after milling e.g. by water-washing, the amount of grinding aid being sufficient to ensure a dry grind. Grinding aids used in amounts of 50% to 1000% by weight of the flocculating phthalocyanine pigment include water-soluble alkali or alkaline earth metal salts e.g. sodium chloride or sulphate and calcium chloride and the grind may also contain a solid alkaline material e.g. sodium acetate or carbonate and calcium oxide. It is stated that the dry grind method converts copper phthalocyanine from the ##α form in the presence of liquid amines. The pigments thus treated give improved paints and inks.
Patent GB-471597-A (GB)
Title: An improved form of carrier for electric fuses of the cartridge type
IPC: H01H85/02
Filed: 1936-03-11
Abstract: 471,597. Fusible cut-outs. BRITISH INSULATED CABLES, Ltd., and BLADES, R. W. March 11, 1936, No. 7356. [Class 38 (i)] In a fuse carrier consisting of an insulating- bar to which metal strips supporting a cartridge fuse are attached, the bar 6 is made narrow, the strips 7 being in direct engagement with the contacts 4, 5 on the fuse, while a clamping device passes through the strip 7 to clamp the fuse contacts, base contact and strip together. The sleeve 12 of a T-shaped wedge block 13 passes through holes in the contacts 4, 5 and is internally threaded to receive a screw 19 with a collar 27a. A screw 14 working in a slot in the wedge 20 is retained by collars 15, 16 and when rotated by a tool inserted in the recess 18, moves the wedge to force the contact 5 towards the contact 4 thus gripping a base contact between them. A thin metal arm 25, preventing the removal of the screw 14, is fastened with the strip 7 by a bolt 8 to the bar 6. A metal insert 27 is provided on the bar, into which a handle may be screwed for removal of the carrier from its base.
Patent GB-1483553-A (GB)
Title: Liquid dispensing pack
IPC: A61J1/00
Filed: 1975-02-21
Abstract: 1483553 Surgical fluid container AMERICAN HOSPITAL SUPPLY CORP 21 Feb 1975 [26 Feb 1974] 7395/75 Heading A5R [Also in Division B8] A liquid dispensing pack for use with a parenteral solution administration set comprises a bottle having a base portion 11, a shoulder portion 10 with a dispersing outlet, a tubular wall with longitudinal rigidity such that the bottle may be supported upright on the base and limited lateral flexibility to allow partial collapse of the bottle to a reduced volume during dispensing of liquid, the uncollapsed bottle containing 50-95% of liquid and 50- 5% of sterile gas whereby the gas has a volume that is equal to or greater than the reduced volume capacity of the bottle, whereby the liquid can drain from the bottle without inletting additional air. The bottle is provided with a calibration 30b giving an accuracy of 30ml in a 1 litre pack. The bottle, Fig. 4, has an oval transverse cross-section, with a constant major axis and a minor axis which tapers toward the base 11 of the bottle. Ribs 33, 34 adjacent base 11 ensure that contact between the sides of the wall during drainage occurs adjacent the base. Ribs 26, 27 act as finger grips. An integrally formed hanger 25 locates in a recess 24. Liquid may be injected into the bottle through a part 16, Fig 3e. A second embodiment, Figs. 11-16 (not shown), is generally similar to the first embodiment except that ribs 26, 27 are omitted and the shoulder portion is generally conical. In alternative embodiments, Figs. 14, 21 (not shown), the bottle is provided with an alternative outlet and may be used for pouring out the liquid.
Patent GB-300854-A (GB)
Title: Improvements in drawing appliances
IPC: B44D3/04
Filed: 1928-03-09
Abstract: 300,854. Liebetruth & Co., Ges., A., and Liebetruth, H. March 9, 1928. Colour-boxes.-A drawing or tracing appliance consisting of a sheet or sheets of ground-glass upon which pictures &c. are adapted to be traced is mounted upon a sheet metal base f, Fig. 6, which is contained within a paint box and is provided with low front and rear vertical edges and higher vertical edges i at its sides, the latter being bent to form lateral flanges h. The base is placed loosely upon the grids b holding the colours within the paint box. The length of the base may be less than that of the box in order to leave lateral spaces for tubes of paint, or, as shown, the lateral flanges may rest upon the lateral edges m of the lower part a of the, box and project slightly thereover to provide finger pieces to facilitate the removal and replacement of the base. The hinged lid of the paint box is arranged so that its front, downwardly-turned edge grips the front wall of the box, and the side edges of the lid just clear the lateral flanges h of the base j.
Patent GB-225108-A (GB)
Title: Improvements in and relating to ring travelers for spinning and like machines
IPC: D01H7/60
Filed: 1924-03-24
Abstract: 225,108. Wentworth, P. C. March 24, 1924. Case-hardening. - R i u g travellers for spinning- machines which are hard at the horns H and resilient at the bow B are formed so that content of the hardening element varies as represented graphically by the shading. Travellers T of very low and uniform carbon content are traversed along a guide-way 4 and by fingers on a chain or belt 7, so that they are gradually immersed in and removed from a heated bath of any suitable carburizing material, such as a fusible carbonaceous compound, a cyanide, ferrocyanide, or carbonate of sodium, or potassium, and automatically drop into a quenching-tank 5. Specification 174,068, [Class 120 (ii), Spinning, twisting, &c.], is referred to.
Patent GB-738100-A (GB)
Title: An improved method of and apparatus for defining characters on impression-receiving material
Inventor: LAMBERT DONALD RUDOLF
IPC: B41J25/00
Filed: 1953-03-18
Abstract: 738,100. Writing-machines. POWERSSAMAS ACCOUNTING MACHINES, Ltd. Feb. 4, 1954 [March 18, 1953], No. 7542/53. Class 146(3). An apparatus for defining characters on impression-receiving material, e.g. paper, comprises a platen, a plurality of styluses supported for independent movement lengthwise towards and away from the platen and in side-by-side relation in a line extending lengthwise of the platen, means to move the marking ends of all the styluses in two paths normal one to the other to determine the maximum height and width of a character, and means for applying discrete impulses to the styluses to effect lengthwise movements thereof to make character-defining marks on impression-receiving material disposed between the platen and marking ends of the styluses. As shown, the marking ends of a plurality of styluses, each comprising an inner flexible wire 1 and an outer member 2, are supported by a guide 11 reciprocable within a second reciprocating guide 10. The guide 11 is reciprocated in the guide 10 by a strap 25, Fig. 1, attached to an eccentric 26. The guide 10 is reciprocated along vertical posts 13 by a bellcrank lever 16 rocked by a cam 19, the cam 19 rotating approximately once for each eleven reciprocations of the guide 11. During the reciprocations, the wires 1 are actuated axially towards a platen 7 and stationary impression receiving material 8, Fig. 2, and a web 9 of transfer media, e.g. carbon paper so as to mark spots on the material 8. The wires are actuated by solenoids 6 energised through rotary discs 28, (Fig. 4, not shown), bearing contacts and operating in the manner described in Specification 707,736.
Patent GB-197789-A (GB)
Title: Improvements in or relating to chairs or sleepers for light railways
IPC: E01B3/24
Filed: 1922-03-15
Abstract: 197,789. Franhs, T. March 15, 1922. Chair plates; chairs, securing to sleepers; sleepers, metal.-In a sleeper or chair having integral jaws b and seating c for the rail, a series of integral spikes or projections d are down-turned from each end and a plain flange a is down-turned' from each side. The chair or sleeper may be made by forging, pressing, or casting, and may be placed on the ground or secured to a wooden sleeper, and in the latter case, perforations e may be provided for bolts &c. The Provisional Specification also states that spikes or projections may be formed along the sides.
Patent GB-164841-A (GB)
Title: Improvements appertaining to the traverse or building mechanisms of machines for winding yarns or threads of fibrous substances
IPC: D01H1/36
Filed: 1920-03-15
Abstract: 164,841. Hindley, F. A. March 15, 1920. Variable-speed ratchet gearing.-The number of teeth of the ratchet wheel of the traverse or building-mechanism of machines for winding yarns or threads taken by the pawl is varied by altering the length of the chain 13, Fig. 1, connecting the pawl with its operating crank 15 so that, when the pawl oscillates between the limits c, d, Fig. 3, the number of teeth taken is greater than the number taken when it oscillates between the limits a, b.