baber/WOPTO huggingface dataset:
Patent GB-230362-A (GB)
Title: Improvements in hair curlers
IPC: A45D2/24
Filed: 1924-08-27
Abstract: 230,362. Dehn, F. B., (Short, D. L.). Aug. 27, 1924. Hair - curling appliances. - A curler specially adapted for bobbed hair comprises a clamping member 10, Figs. 1 and 3, having an oblong perforation at one end and an overturned hook portion 12 at the other end, and a strip of flat metal narrower than the member 10 bent approximately at mid-length to form a loop 13 and passed through the opening 11 forming two arms 14, 15, preferably of slightly different lengths. The longer arm 14 is provided with a perforation 16 in which engages a projection 17 on the hook portion 12 of the member 10. The hair is passed between the arms 14, 15 and rolled t'hereon, the arm 14 being then engaged under the, hook 12. The arms 14, 15 may be of equal length and both arms may engage in a slot 19, Fig. 7, in the overturned part 20 of the member 10. The perforated end 22, Fig. 8, of the base member 21 may be inturned, as shown.
Patent GB-1069449-A (GB)
Title: Photographic printing machine
Inventor: ZEIBIG SIEGFRIED
IPC: G03B27/46
Filed: 1964-05-15
Abstract: 1,69,449. Photographic printing apparatus. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. May 15, 1964, No. 20324/64. Heading G2A. Photographic printing apparatus comprises a light source 1 for effecting exposure, a negative carrier 4, a positive carrier 11 having a picture framing mask, and a slide 8 arranged between the positive and negative carriers and supporting two objectives 6, 7 which may be selectively brought into the path of the exposure beam, the objective 6 having the shorter focal length being positioned on the axis of the beam, and the objective 7 being offset from this axis in the direction of paper feed so that irrespective of the objective selected one of the edges of the positive image which lies at right angles to the direction of paper feed is fixed in order that the position of the corresponding edge of the mask remains unaltered. When positioned in the exposure beam the objective 7 is also offset in the direction at right angles to the direction of paper feed so that one of the edges of the mask which is parallel to the direction of feed remains fixed irrespective of the objective used. A semi-transparent mirror 36 located in the exposure beam deflects part of the beam through an optical system 37 which images the objectives 6, 7 on a photo-electric cell 38 in an exposure control circuit. The intensity of the light on the cell 38 is controlled by a series of filters 40-44 supported on a carrier 39. A positive printing mask 21 is mounted slidably on the carrier 11 and articulated to a main shaft 24 which extends parallel to the path of the exposure beam. The shaft 24 is rotatable through spur wheels 29, 30 by a knob 32 which determines the size of the positive image. Rotation of the knob 32 simultaneously produces a rotation of the carrier 39 and brings a particular filter in front of the cell 38. The carrier 39 is supported on a spindle 45, the free end of which moves over a cam surface 46 on the slide 8 so that the filters may be moved parallel to the exposure beam and thus interchanged with change of objective. Also mounted on the shaft 24 is a toothed wheel which engages a grooved wheel 28 slidably but drivingly mounted on a shaft 14 and fixed to a series of cams 15, 16, 17. Adjustment of the knob 32 brings one of these cams into engagement with a roller 20 carried by a lever 18 which is coupled to a feed drum 12.
Patent GB-214530-A (GB)
Title: Improvements in or relating to die case equipment for type casting machines
IPC: B41B7/04
Filed: 1923-08-11
Abstract: 214,530. Pierpont, F. H., and Lanston Monotype Corporation, Ltd. Aug. 11, 1923. Single-type composing and casting machines; matrices.-In a die-case equipment, the matrices are supported by two series of parallel suspension bars, arranged at right-angles to each other, and passing through openings in the die-case frame. The two sets of suspension bars A, B, Figs. 4 and 6, which at their ends are connected to plates A', B', pass through holes E', E<2>, Fig. 2, in the opposite sides of the die case E, one set of bars passing through holes D<2>, Fig. 8, in the matrices D, and the other set passing through grooves D', Fig. 9, in the sides of the matrices. The set of bars A is looked in position by a spring C on the die-case, which engages the plate A', and one of the bars A passes between shoulders b', Fig. 6, on the bars B, which are thereby locked. Specifications 4726/05 and 201,764 are referred to.
Patent GB-871216-A (GB)
Title: Light sensitive diazotype materials
IPC: G03C1/61
Filed: 1959-06-15
Abstract: 871,216. Photographic diazotype materials. GENERAL ANILINE & FILM CORPORATION. June 15, 1959 [July 10, 1958], No. 20469/59. Drawings to Specification. Class 98(2) Material capable of reproducing continuous tone images comprises a base and two layers each containing a light-sensitive diazo compound and a coupling component with a U.V. absorber layer positioned to act after the printing light has passed through one sensitive layer but not the other one. Thus a translucent base containing the U.V. absorber may have the layers on opposite sides or one such layer may contain the absorber as well. Alternatively both sensitive layers may lie on the same side of a base. Absorption strongly in the near U.V., e.g. 3660 mÁ region of the mercury arc and modestly in the extreme visible violet region, e.g. around 4046 mÁ is preferred, and in normal use the layer first struck by the printing light receives the shadow detail of a continuous tone image and the other layer the high lights. Lists of diazo sensitisers, coupling components and U.V. absorbing materials together with extensive theoretical and practical discussions of the requirements, seven examples and twelve Figures are provided, thus in the first example high light and shadow density comparisons after exposure and ammonia development are made between two separate but overlaid (for exposure) pieces of cellulose triacetate film base coated with a specified black developing diazo-coupler composition and these when provided with an intermediate filter comprising a similar base coated with a mixture of 2, 2<SP>1</SP>-dihydroxy-4, 4<SP>1</SP>-dimethoxybenzophenone and 2, 2<SP>1</SP>, 4<SP>1</SP>-trihydroxy-4-methoxy-benzophenone. A second example is similar but includes description of the effect of pre-flashing the sensitive materials, the third is concerned with printing speed data of a diazo layer after exposure through the ultra violet filter alone and through this together with the second, upper, diazo layer, and the rest with materials for actual use. Compositions of the two sensitive layers may be the same or in some instances vary slightly. The Specification concludes with a list of sensitisers and couplers for images of a range of colours which may be used instead of the black developing composition. Certain prior attempts to improve the tonal gradation of diazotype materials are described. Specification 726,755 is referred to.
Patent GB-425665-A (GB)
Title: Lock for traveller's trunks
IPC: E05B65/50
Filed: 1934-07-13
Abstract: 425,665. Hasp locks. DEFONTAINE, DUBOIS, & CIE, 17, Rue des Terres-au-CurÚ, Paris, and DEFONTAINE, F., 2, Rue Charles- Floquet, Vitry-sur-Seine, both in France. July 13, 1934, No. 20556. [Class 44] A sliding latch 8 for a hasp fastening for bags and the like is locked by a cylinder lock 11 which is housed in the axis of the hand operating knob 4 and carries an arm 9 adapted to butt on the end wall of the casing.
Patent GB-768152-A (GB)
Title: Improvements relating to electrical power distribution systems
Inventor: WHITEHURST JOHN TRAILL
IPC: H02G5/00
Filed: 1954-07-14
Abstract: 768,152. Distribution boxes; two-part couplings. OTTERMILL SWITCHGEAR, Ltd. July 4, 1955 [July 14, 1954], No. 20579/54. Class 38 (1). An insulating distribution box 3 supports bus-bars 1a ... 1d in a metal duct and comprises recesses 5a, 5b, 5c housing bus-bar terminals 7a, 7b, 7c and recesses 5e, 5f, 5g housing terminals 12e, 12f, 12g for branch conductors 18, sockets 11, 15 for fuse carrier contacts being formed between the terminals and springs 9, 14 respectively, so that fuse carrier contacts may bridge corresponding pairs of terminals 7, 12 through an apertured cover 30. Cover 30 is slidable with respect to the box to an extent limited by a spring plunger 41 which engages the end 43 of a groove 40, leaving the bus-bar terminals still covered. The cover may be entirely removed by inserting a tool in a notch 44 in the groove and depressing plunger 41. The bus-bar block and terminal block for the neutral bus-bar 1d are integral, as shown at 25. Specification 595,819 is referred to.
Patent GB-991779-A (GB)
Title: Improvements in or relating to display arrangements
Inventor: BURNS GEORGE ARTHUR
IPC: H02B15/02
Filed: 1963-05-23
Abstract: 991,779. Electric selective signalling; changing signs. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 10, 1964 [May 23, 1963], No. 20706/63. Drawings to Specification. Headings G4H and G5C. In a display arrangement for an electrical power distribution system or the like, means are provided for selecting a transparency representing a particular part of the network and projecting an image of it upon a translucent screen behind which is arranged a formation of electric lamps controlled in accordance with the state of the control devices of the said particular part of the network. In the particular embodiment, circuit breakers at a number of substations are controlled from a central station which comprises substation selection keys, a set of breaker control keys sufficient for controlling any one substation, a data store for each sub-station for storing the present states of the circuit breakers, and the display arrangement above. When the central-station operator selects a substation, the breaker control keys are linked to it, the lamp formation controlled from the corresponding data store and the appropriate transparency selected and projected. If the state of a circuit breaker changes, due to control or to a fault, the corresponding change in the appropriate data store causes this store to be automatically linked to the lamp formation and the appropriate transparency to be projected (if not already so linked and projected). The lamp which changed may be caused to flash in the case of a fault. Each circuit breaker may be represented by one lamp in which case this is on if there is a discrepancy between the state of the breaker and the corresponding breaker control key; or by two lamps, red for closed and green for open. The circuit breaker symbols on the transparency have a colour depending on the associated voltage. The designations of the breaker control keys displayed adjacent thereto may be altered automatically in accordance with the substation selected. The projector carries coloured transparencies either in a magazine, or an endless strip of film, or on a rotatable disc, and comprises an electromagnetically operated mechanism PM (Fig. 1 not shown) to select any particular transparency.
Patent GB-783647-A (GB)
Title: Improvements in or relating to barrier-layer systems
IPC: C30B31/06
Filed: 1955-07-18
Abstract: 783,647. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 18, 1955 [July 21, 1954], No. 20712/55. Class 37. The conductivity of that part of a semiconductor member having a pn junction rectifying contact, which is not covered by the contact, is higher than that of the rest of the member. Fig. 1 shows a transistor in which the rectifying electrodes 3 and 4 with p-type portions 5 and 6 on n-type body 1, and region 2 consists of higher conductivity n+ material. The device may be prepared by heating the member, in a donor atmosphere such as SbCl 3  (or BCl 3  if p-type material) to provide layer 2, and then providing electrodes 3 and 4 by known acceptor (or donor) alloying processes.
Patent GB-202649-A (GB)
Title: Inserted teeth for milling cutters, reamers and the like
IPC: B23C5/18
Filed: 1923-08-17
Abstract: 202,649. Jaegerstahl Ges. Aug. 17, 1922, [Convention date]. Milling - cutters; reamers. -Inserted blades are composed of high - speed steel b welded to machine steel a. The part b may be of the alloy known under the registered Trade - Mark "Stellite."
Patent GB-275672-A (GB)
Title: Improvements relating to the preparation of titanium and like compounds
IPC: C01G23/053
Filed: 1927-08-09
Abstract: 275,672. Blumenfeld, J. Aug. 9, 1926, [Convention date]. Indiarubber compositions.-Oxides of titanium, thorium, zirconium, tin, cerium and other fourth group metals, are prepared by hydrolysis of a solution of a salt of said metal by heating, in which hydrolysis is initiated in an aqueous liquor of low concentration, and the concentration is gradually increased by adding with agitation a substantially concentrated solution of the salt over a prolonged period of time and preferably at a substantially uniform rate. A hot concentrated solution of titanium sulphate is poured slowly (e.g. in 10 minutes) with stirring into one fourth its volume of hot water or dilute solution, whereby collodial particles are formed at first and later precipitated. A yield of 80-95 per cent of oxide is obtained after 3 hours. The precipitate is a gel and after washing may be dispersed to the required extent by peptisation, e.g. by hydrochloric acid or other salt, preferably after neutralizing any residual sulphuric acid by ammonia and washing. The products from hydrolysis and peptisation may be mixed, and the oxide coagulates on the particles of the gel either in the presence of an electrolyte (e.g. ammonium sulphate formed as above) or on evaporating off the water. Precipitation of oxide may be effected at pressures other than atmospheric, or a layer of paraffin wax added to prevent loss of water. Specifications 225,593 and 247,296, [both in Class 2 (iii), Dyes &c.], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the presence during hydrolysis or the subsequent incorporation of barium sulphate, calcium sulphate, silica and the like, serving as fillers for the linoleum or rubber industries. The hydrolysis may proceed in the presence of colloidal particles of a compound of the metal formed in or added to the solution or water before, during or after mixing. If an interval of five minutes is made during mixing, precipitated particles of different sizes are formed. This subject-matter does not appear in the Specification as accepted.
Patent GB-149237-A (GB)
Title: Improvements in and relating to thermionic receiving apparatus for wireless signalling
IPC: H03F1/08
Filed: 1920-07-12
Abstract: 149,237. Loewe, S. April 18, 1918, [Convention date]. Wireless signalling.-To prevent retro-active self-excitation in the amplifier or amplifiers of thermionic apparatus for receiving wireless signals, the grid circuit of the amplifier is coupled indirectly with the anode circuit of the detector through an intermediate circuit which is coupled through an adjustable transformer with the detector anode circuit. This arrangement allows conducting connexion, not shown in the drawing, between the coils of the input transformer of the amplifier without short-circuiting the battery. The drawing shows an aerial 6 connected to the anode of the detector 1, and an intermediate circuit coupled through an adjustable transformer 11, 12 with the detector anode circuit and through a transformer 9 with the grid circuit of the amplifier 7. The grid circuit of the detector is tuned to the received waves.
Patent GB-1090846-A (GB)
Title: Method of and apparatus for the blow moulding of hinged articles and articles made thereby
Inventor: SCHURMAN PETER TAUBE
IPC: B29C48/325
Filed: 1965-05-18
Abstract: 1,090,846. Moulded containers. W. R. GRACE & CO. May 18, 1965 [May 21, 1964; Sept. 9, 1964 (2); Dec. 21, 1964; March 22, 1965], No. 21064/65. Heading B8P. [Also in Division B5] A double walled container 1, Fig. 10, the halves of which are joined by an integral hinge is made by extruding a thermoplastics parison and blowing it in a two-part mould (see Divisions B4- B5). The inner wall which may be thinner than the outer wall is recessed or cut away to provide receiving pockets for the article parts for which the container is to be used.
Patent GB-1429447-A (GB)
Title: Read only memory
IPC: G11C13/04
Filed: 1974-05-14
Abstract: 1429447 Read-only memories NCR CORP 14 May 1974 [1 June 1973] 21200/74 Heading G4A Each cell of a read-only memory matrix includes a pair of series-connected diodes, e.g. 32, 34, and a photosensitive device, e.g. 76, connecting the common junction of the diodes to a column line 68, and a row of cells is selected by forward biasing the diodes of that row whereby those cells whose photosensitive devices, e.g. 76, 82, 88 are irradiated by a programming source produce outputs on the respective column lines. Forward biasing of the diodes in a row may be effected by switching the appropriate row line 30 or pair of adjacent row lines to an appropriately poled potential source. The matrix may be fabricated on a semi-conductor chip and programmed by a mask which may be fixed or removable.
Patent GB-186025-A (GB)
Title: An improved spirit level for use in surveying instruments
IPC: G01C9/32
Filed: 1921-06-07
Abstract: 186,025. Tallack, H. T. June 7, 1921. Levels.-The metal casing of a reversible glass bubble tube for use in a surveying instrument is open at one end only, as shown, so that one end only of the bubble is visible.
Patent GB-284945-A (GB)
Title: Improvements in or relating to petrol or petrol and oil tanks of the kind used on motor cycles
IPC: B62J35/00
Filed: 1927-08-12
Abstract: 284,945. Birmingham Small Arms Co., Ltd., and Baylay, W. L. Aug. 12, 1927. Fuel containers.- Screwed sockets for receiving the bolts by which a tank is mounted on a motor cycle are provided with a stem 1 protruding into the tank and with a conical head 3 received in a conical seating in the tank wall. The stem has a conical part 10 to facilitate securing by soldering &c. and the seatings are formed in transverse grooves or ribs 5.
Patent GB-280658-A (GB)
Title: An improvement in covering basins, pans, jars, bottles, containers and other vessels
IPC: B65D39/04
Filed: 1926-08-31
Abstract: 280,658. Knight, H. M. C. Aug. 31, 1926. Capsules and like closures.-A closure for bottles, jars, &c. comprises thin, impervious, flexible material, such as that sold under the Registered Trade Mark " Cellophane," in combination with stronger material such as paper or cardboard, the thin material being adhesively secured to the inner Surface of the stronger material to cover all of that material which might otherwise contact with the contents of the bottle &c., and to extend between the stronger material and the wall of the bottle &c. The thin material prevents liquid or moisture from penetrating to the stronger material. As shown in Fig. 2, thin material 4 stuck to the underside of a cardboard annulus 3 extends upwards along the walls of the container 2 and provides means whereby the closure may be removed from the container, but the annulus may rest on the top of a bottle &c. and be secured by an outer paper ring. The thin material 4, Fig. 7, extends downwards over the outer surface of the container and the stronger material 10 springs into a recess in the container mouth. The thin material may be secured to a disc adapted to fit into a groove in the container mouth, the disc being associated with an upper member moulded to the shape of the mouth and secured to the thin material.
Patent GB-706896-A (GB)
Title: Improvements in or relating to window regulators
IPC: E05F11/44
Filed: 1952-08-26
Abstract: 706,896. Window-operating mechanism. HUPP CORPORATION. Aug. 26, 1952 [Oct. 20, 1951], No. 21410/52. Class 20 (3). [Also in Group XXXVII] In an electrically driven window operating mechanism of the lever arm type, the danger of trapping a person's hand in the window is prevented by a safety device comprising a resistance which is inserted in the motor circuit by a switch actuated by the lever arm as the window approaches the fully raised position. Fig. 1 shows the invention applied to a window regulator as described in Specification 692,134, the regulator comprising a unitary mounting plate 11 to which an actuating arm 13 is secured by a pivot 14, one end of the arm carrying a pin 15 which engages the window support channel 16 whilst the other end is secured to a gear sector 19 driven through gearing 21 by a reversible motor 22. When the window is being raised and is approaching its fully closed position, a cam 42 on the gear sector 19 contacts a roller 41 carried by the actuating arm 38 of a switch 35, the arm being raised to operate the switch to insert a resistance in the motor circuit. The arrangement is such that the window is driven at full speed in either direction except for the last part of its upward travel, when the motor speed and torque is considerably reduced.
Patent GB-994113-A (GB)
Title: Load-carrying vehicle
IPC: B60P3/16
Filed: 1963-05-29
Abstract: 994,113. Motor vehicles. CHALLENGECOOK BROS. Inc. May 29, 1963 [May 31, 1962; Sept. 18, 1962], No. 21468/63. Headings B7D and B7H. A vehicle including a load-carrying body has pivotally attached thereto a wheeled frame extension or trailer which is urged rearwardly and downwardly from the body by one or more hydraulic cylinders whereby part of the body load is transferred to the trailer wheels. In Fig. 4 a motor vehicle carrying a tipping body 300 is provided with a trailer 310 comprising a framework pivotally connected to each side of the body and carrying a pair of wheels 50 urged into contact with the ground by hydraulic cylinders 332, the cylinder being double-acting whereby the trailer 310 may be raised clear of the ground when not required or to prevent obstruction of load discharge from the body 300. The trailer wheels 50 may be mounted at each end of a short axle connected to the trailer about a vertical pivot, or they may be individually pivoted and interconnected by a tie-rod. The wheels may be steerable by hydraulic mechanism controlled by a steering wheel on the trailer or by the normal steering mechanism of the vehicle. Fig. 11 shows an arrangement wherein the hydraulic cylinder actuating the trailer is controlled by a valve 128 and is connected to a hydraulic accumulator 140 containing a gaseous element 142, whereby the hydraulic action is cushioned and the wheels 50 maintain contact with uneven ground. In another embodiment, Fig. 1, wherein the invention is applied to a vehicle carrying a drum 60 for mixing the load in transit, the trailer carries a loading hopper 70, a discharge accumulator 80 and a discharge shoot 90 which are moved into position adjacent the drum opening when the trailer is raised. In a further embodiment wherein the invention is applied to a motor bus, the trailer is enclosed within a housing.
Patent GB-734331-A (GB)
Title: Mounting medium for microscope slides and method of securing the cover glasses therefor
Inventor: FERRARI ANDRES
IPC: G01N1/30
Filed: 1953-08-04
Abstract: A mounting medium for securing a microscope cover glass consists of 50-60 per cent by weight of coumarone indene resin having a melting point from 150 DEG  to 175 DEG  C. an acid number less than 1 and a refractive index of about 1.650 at 25 DEG  C., dissolved in benzene, toluene or xylene.