baber/WOPTO huggingface dataset:
Patent GB-1515445-A (GB)
Title: Injection syringe
IPC: A61M5/148
Filed: 1976-07-28
Abstract: 1515445 Injection syringes CONTRAVES AG 28 July 1976 [28 July 1975] 31534/76 Heading A5R [Also in Divisions Fl and F2] A piston member for use in the cylindrical casing 1, Figure 1, of an injection syringe for injecting liquids into blood vessels of living bodies, comprises a cylindrical body 2, a first circumferential groove 12, Figure 2, around the cylindrical surface of the body, a second circumferential groove 14 around the body parallel to the first groove 12, a sealing ring 7 engaged in the second circumferential groove and a sliding ring 6 of approximately L-shaped section engaging with one limb 8 in groove 12 and with the other limb 9 extending along the side of body 2 and at least partially over the sealing ring. A shoulder 17 of body 2 extends radially with respect to the body to define the distal portion of groove 14, and said portion of the groove preferably covers only half of the ring 7 to discourage the adherence of gas-bubbles. A space 13 formed in groove 14 between rings 6 and 7 is filled with elastomeric material. The casing 1 may be made of a transparent plastics material, e.g. a polysulphone, or a polycarbonate, or of a metal. The ring 6 is made of resilient material having a low coefficient of friction e.g. polytetrafluoroethylene or a polyamide. The limb 8 of ring 6 may be made longer to penetrate further into the body 2 if it is also slotted to provide segments which may be pushed apart during assembly of the ring on body 2.
Patent GB-356541-A (GB)
Title: Improvements in and relating to fountain shaving brushes and receptacles therefor
IPC: A46B11/00
Filed: 1930-10-21
Abstract: 356,541. Shaving brushes. PRIEST, H. R., Loudonville, Ohio, U.S.A. Oct. 21, 1930, No. 31547. [Class 19.] A cap or cover 21 for a shaving brush is open at both ends, a reduced neck portion 22 with a conical seat being formed at one end against which may be wedged a correspondingly formed portion 13 on the barrel of the shaving brush. The opposite end of the cover is closed by a removable cap 26 fitted with a mirror 27. Staggered holes 28 are arranged in the wall of the cover for ventilation. A frusto-conical ring 18 surrounding the bristles 17 of the brush is drawn tightly against the brush barrel 10 by a correspondingly formed ring 19 which screws at 14 to the barrel 10. Shaving cream in a large capacity magazine 15 may be fed to the bristles through an axial bore 11 in the barrel 10. A magnifying mirror M is fitted in the outer end of the magazine 15.
Patent GB-996270-A (GB)
Title: Improvements in and relating to the production of shaped metal or like bodies
IPC: B21H7/16
Filed: 1962-08-17
Abstract: 996,270. Producing turbine blades; rolling; forging. COMPAGNIE ELECTRO MECANIQUE. Aug. 17, 1962 [Sept. 14, 1961], No. 31639/62. Headings B3H and B3M. A metal blank 15, suitable for making a turbine blade, is rolled between segmental rolls 1 and 2 to form a head 17 and a foot 16, and is then held by a piston 12 between discs 13 and 14 while the head and foot are upset by opposed dies 10 and 11. The dies 13 and 14 prevent upsetting of the centre section of the blank. The roll segments 3 and 4 are formed with tongued interengaging buffers g and h, Fig. 7, for confining the foot of the blank. The method is applicable to materials capable of being rolled and pressed in the manner of metals.
Patent GB-933351-A (GB)
Title: Improvements in or relating to photo printing devices
IPC: G03B27/22
Filed: 1960-09-15
Abstract: 933,351. Photocopying apparatus. W. ZINDLER, [trading as LUMOPRINT ZINDLER KOMM.-GES.]. Sept. 15, 1960 [Sept. 23, 1959; Jan. 28, 1960], No. 31773/60. Class 98 (1). A photocopying apparatus has disposed between the papers and the light source an exposure plate having slot-shaped apertures arranged symmetrically on either side of a central line in the direction of paper feed, and inclined outwards relative to this line. The shape and disposition of the slots is such that each point on the paper passing below the plate is exposed to the light through the slots for an equal time and to an equal extent. Thus the plate may be of opaque material, or, if of transparent material, the operation is unimpaired if the transparency becomes affected by dirt or scratching. The sloping slots also tend to smooth out any curled edges of the underlying paper. In the form shown, the original and copying papers pass over a transport roller 3, and are held closely against it by a curved plate 2, which may be pivoted at 6 and under the action of a spring 9. The plate 2 is provided with a series of slots 12 disposed diagonally to the direction of paper feed. The webs 13 between the slots are narrower than the slots themselves. The slots are so dimensioned and disposed that all parts of the paper passing are uniformly exposed, and the slots may be extended or widened at their ends to compensate for the greater distance from the light source 1. The invention may also be applied to arrangements having a flat exposure plate.
Patent GB-299852-A (GB)
Title: Method of and means for separating desired from undesired electric currents
IPC: H04B1/10
Filed: 1928-11-01
Abstract: 299,852. Gage, E. G. Nov. 2. 1927, [Convention date]. Drawings to Specification. Filter and separator circuits; eliminating undesired signals.-Currents of a desired frequency are separated from curents of adjacent frequencies by subjecting the mixture to a series of stages of frequency transformation, each stage comprising a heterodyne or frequency-subtraction step followed by a frequency-multiplication step, the total effect being to restore the desired currents to their original frequency at the end of each stage, and to cause the interfering currents to diverge progressively in frequency. In a preferred form applied to the elimination of undesired signals in a wireless receiver, the received waves are first heterodyned by a local oscillator of half the desired frequency. The resulting difference frequencies are then doubled in frequency, so that the desired signal wave is restored to its original frequency, whilst an undesired signal wave has its frequency divergence doubled. The process is continued in further similar stages until the divergence is sufficient. A tuned circuit at each stage emphasizes the desired wave, and reduces the strength of the out-of-tune undesired wave. The local oscillations are preferably distributed to the several stages by radiation, each heterodyne stage comprising a small loop aerial non-inductively related to its neighbours, but adapted to pick up from the local oscillator. The several frequencychanging stages are shielded by metal screens, the loop receivers only being open to outside influence. Filters may be used between the stages, and balancing circuits or damping resistances may be used to control self-oscillation. After separation, the desired waves may be heterodyned to produce audible beats, or may be rectified to operate the stylus of a picture telegraph receiver.
Patent GB-747664-A (GB)
Title: Improvements in sheet feeding mechanism
Inventor: BATTEY ALFRED PIERSSENE
IPC: B65H7/02
Filed: 1952-12-16
Abstract: 747,664. Feeding-sheets. CRABTREE & SONS, Ltd., R. W. Dec. 16, 1953 [Dec. 16, 1952], No. 31881/52. Class 100 (1). Faulty feed detectors.-In sheet-feeding apparatus sheets which are improperly located are detected by a feeler which is moved across the path of movement of the sheets in such timed relationship that the feeler in its movement clears sheets which are properly disposed but engages those which are improperly disposed, and in such engagement means is operated to control the operation of the sheet-feeding or associated apparatus. As shown, a detector unit A, which is operated by suction at regular intervals under the control of a valve unit B, includes a feeler 3 which is reciprocated vertically to pass through an aperture in a feed board 1. If a sheet S is improperly located on the board 1 and impedes the downward movement of the feeler 3, a switch in an electric or fluid-pressure circuit D is closed to effect a control of the apparatus or the associated machine: for example the supply of suction to sheet-separators may be cut off, or the cylinders of a printing-machine may be tripped. The feeler 3 is slidable in a sleeve 4 integral with a piston 5, the latter being slidable in a cylinder 6 which is connected at 7 to a suction conduit 8. When suction is applied, the piston 5 is drawn down against the action of a spring 9 and this movement is transmitted to the feeler 3 through a second spring 11. If the feeler 3 is stopped by a sheet S, the piston 5 and sleeve 4 continue their movement, against the action of the spring 11, and this relative movement is employed to close a switch 14 in the circuit D. A rod 15 secured to the feeler 3 carries a block 16 provided with a cam face 16<SP>1</SP>, and the latter acts on a pawl 17 pivoted to an extension 4<SP>1</SP> of the piston 5 to close the switch 14 when there is relative movement between the feeler 3 and sleeve 4. The cylinder 6 is carried by a bracket 12 mounted on an adjustable rail 13. The suction pipe 8 is connected to the valve unit B which includes a rotary valve driven through gearing C in phase with the printing &c. machine with which the sheet-feeder is associated, whereby the pipe 8 is connected to a suction pipe 29 at the appropriate times. Means is provided in the drive of the rotary valve to enable the timing of the connection between the pipes 8, 29 to be varied.
Patent GB-899566-A (GB)
Title: Production of solid sodium and/or potassium sulfites
Inventor: SPORMANN WALTER
IPC: C01D5/14
Filed: 1960-09-16
Abstract: Sodium or potassium sulphites are prepared from alkali metal hydroxide, carbonate or bicarbonate solutions by atomizing such solutions into a sulphur dioxide-containing gas under such conditions that the water of the solution is substantially p  immediately vaporized and the sulphite is obtained in dry form. Formation of sulphate is thereby prevented.  Depending on flow rates and humidities the sulphur dioxide gas may be at 20 DEG -150 DEG C. and may contain as high as 50 parts by volume of oxygen.  The alkali metal salt solutions preferably contain more than 10% by weight of hydroxide or carbonate and the solution is preferably atomized into an upwardly directed gas stream which entrains the solid alkali metal sulphite formed.
Patent GB-1120928-A (GB)
Title: Improvements in straining tanks
IPC: C12C7/14
Filed: 1967-07-13
Abstract: The straining tank described and claimed in Specification 1,115,397 is improved or modified by having the inner and outer ring portions inclined towards each other.
Patent GB-1417011-A (GB)
Title: Cement manufacture
IPC: C04B7/60
Filed: 1972-07-10
Abstract: 1417011 Condensing gases from a cement kiln F L SMIDTH & CO A/S 5 July 1973 [10 July 1972] 32232/72 Heading B1B [Also in Division F4] In a method of operating a rotary cement kiln, a portion of the gaseous compounds containing alkali, chlorine or sulphur is removed from the exit gases of a rotary kiln 1, Fig. 7, in which cement raw meal is converted to cement clinker by dividing the flow into a first flow which leaves via 2 and is passed through a suspension heater to preheat cement raw meal before the meal is fed to the kiln, and a second flow, e.g. drawn off from the exit gases at 22, and causing the second flow to pass through a rain of bodies falling freely from pipes 57 so that the gaseous compounds condense and solidify on the bodies. The coated bodies then flow over vibrating screen 44 to loosen the coating from the bodies and separate off the powder so formed which passes through the screen and leaves at 53, the bodies passing to conveyor band 48 via conduit 54 where they are cooled by a water spray, adjusted so that they enter column 36 dry. In the embodiment of Figs. 2 and 4, (not shown), the second flow flows upwardly in countercurrent to the falling bodies. The bodies may be balls, cylinders or spirals of ceramic or metal e.g. iron balls of 2-10 mm diameter, or may be course gravel or pebbles.
Patent GB-1530045-A (GB)
Title: Sewage treatment apparatus
IPC: E02B8/02
Filed: 1977-07-28
Abstract: 1530045 Sewage screen WILLIAM E FARRER Ltd 28 July 1977 [3 Aug 1976] 32233/76 Heading B1D A sewage treatment apparatus comprises an inlet channel for carrying a flow of sewage and a screen 11 which extends across said channel, said screen comprising a plurality of spaced bars 12, means 15 for rotating the bars completely about their respective longitudinal axes and a plurality of non rotatable plates 16 each of said non stable plates being disposed adjacent to a respective said bar on the downstream side thereof and extending in a direction generally parallel to the associated bar whereby in use any screenings which may tend to adhere to the bar will be removed therefrom by the plate on rotation of the bar.
Patent GB-841344-A (GB)
Title: Improvements in flexible chamber pumps
IPC: A61M60/50
Filed: 1958-10-09
Abstract: 841,344. Linkwork. THOMAS, A. Oct. 9, 1958, No. 32318/58. Class 80 (3). [Also in Group XXVIII] A flexible chamber pump (see Group XXVIII) is actuated by oscillating arms 170 mounted on a cross-head 185 which carries the limb 186 of a T-member whose other limb 187 is mounted in a ball-joint 188. The ball-joint 188 is mounted eccentrically of the axis of the rotating drive shaft 190 which is mounted in bearings 193 carried by a member 194. As the shaft 190 rotates the limb 187 traces out a conical surface and the arm 170 oscillate about the axis 192. The member 194 is movable axially relatively to a stationary member 195 to adjust the axially position of the limb 187 in the ball-joint 188 to vary the amount of oscillation of the arms 170. Specification 834,645 is referred to.
Patent GB-1385252-A (GB)
Title: Display carrier made from a folded blank
IPC: B65D71/00
Filed: 1972-07-12
Abstract: 1385252 Packaging structure formed from a folded blank MARDON SON & HALL Ltd 11 July 1973 [12 July 1972] 32482/72 Heading B8C A display carrier made from a folded blank of stiff material, Fig. 1, comprises two intersecting annular portions A, B which extend obliquely one across the other one of the annular portions A lying partly within the other annular portion B and being joined to it by a hinge line 23 which forms an edge of the carrier. As shown, a blank, made, e.g. of carton board, consists of two series of four panels 10-13 and 14-17 respectively the panels in each series being joined by transverse fold lines and the panels 11, 13, having intermediate their lengths, transverse fold lines 22. The panel 16 has a T-shaped slit 21 adapted to receive a tab 19 on the panel 12, and the blank is slit between the panels 13 and 17, 12 and 16; and 11 and 15. The blank is folded as shown in Fig. 2 and a glued flap 18 is stuck to the corresponding edges of the pahels 10, 14 before the blank is sent to a customer for erection and loading. The collapsed sleeve is erected by first opening it out to assume a rectangular crosssection and then deforming the annular portion A by pressing inwardly on the two opposing fold lines 22, the deformed annular portion A then being pushed through the annular portion B until the flap 19 has cleared the panel 16. The annular portion A is allowed to resume its rectangular cross-section and is then moved about the hinge line 23 to a position at rightangles to the portion B, Fig. 3. When the portions A, B have been loaded with stacked containers 25 they are pivoted towards each other about the hinge line 23 and the locking tab 20 is engaged in the 'slit 21.
Patent GB-406098-A (GB)
Title: Improvements in or in connexion with commutators for dynamos, electro-motors, and the like
IPC: H01R39/04
Filed: 1932-11-17
Abstract: 406,098. Commutators. ALLWOOD, H., 46, Kingsfield Road, Watford, Hertfordshire. Nov. 17, 1932, No. 32513. [Class 35.] Insulation for commutators is built up of discs of mica, micanite &c. with teeth 2 cut in the outer edge at an angle to the radius as shown so as to overlap when folded down on to the cylindrical surface of the commutator holder. If the commutator bars are of the type secured by dovetails the inner portions of the discs are slit as shown at 3. Several discs are superimposed so that the teeth and slits break joint.
Patent GB-348010-A (GB)
IPC: G11B7/28
Filed: 1929-10-26
Abstract: 348,010. Photographic contact and projection printing. COMMUNITY SERVICE, Ltd., 1, Montague Street, London.- (Assignees of Foster, W. D. ; 4, Wilsey Square, Ridgewood, New Jersey, and Oswald, C. L. ; East 19th Street, New York, both in U.S.A.) Oct. 26, 1929, No. 32610. Convention date, Oct. 29, 1928. [Classes 98 (i) and 98 (ii).] In duplicating photographically-recorded sound record films, light of a selected wave length or a selected group of wave lengths is employed, and the sensitive emulsion on the film is chosen to suit the selected beam as also the materials and process of development. The sound record may be made on and duplicated with a picture film. The arrangement is intended to overcome diffraction effects of the usual beam, permitting a wider slit to be used with provision for cleansing. The source of light may be selected to emit the required wave length or group of wave lengths, preferably in the higher frequency range of visible light or ultra-violet, or a beam from a usual source may be directed through a selected filter which passes only the required wave length or lengths. For printing a combined sound and picture film with a monochromatic beam approximating 4000 Angstrom units a comparatively slow sensitized emulsion rated between 120 and 200 H. & D. would be suitable, and glycin is preferably used as the developer since this will tend to reduce the grain and bring out sharply the sound image produced by the selected beam and also build up the picture image produced by the polychromatic light source. A suitable developing formula is specified. Before development the exposed film may be treated with a dilute solution of pinakryptol green to prevent fogging. In copying or duplicating a combined film, with or without reduction or enlargement, the negative and positive may be passed through separated gates at which they are exposed to the picture printing beam and the sound printing beam of selected wave length respectively, or a single gate may have the sound aperture fitted with a light screen to pass only the selected wave length. The Specification as open to inspection under Sect. 91 (3) (a) states also that the light source in recording, reproducing or duplicating may be maintained free from undesired fluctuations by enclosing it in a casing 70, 71, Fig. 25 (Cancelled), containing a channel through which a current of air is induced naturally or forced by a fan 73, the current passing the light source 12 on its way to the exit 78, and by the provision of heating units 82 controlled by a thermostat 81 and a further thermostat 86 controlling the current to the light source. The thermostat 81 acts through an electromagnet 83 to control the amount of external resistance 85 in the circuit of the heating units 82, and the thermostat 86 acts through an electromagnet 87 to vary the resistance 89 on the light source circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-317266-A (GB)
Title: A new or improved book marker
IPC: B42D3/14
Filed: 1928-11-09
Abstract: 317,266. Daly, F. Nov. 9, 1928. Bookmarkers.-A bookmarker of the type comprising an elastic member extending across one corner of the cover. and detachably or permanently secured to the cover at each end, consists of an endless rubber band or similar resilient member 1 attached to a pair of W- shaped clips 2, Fig. 1, or U-shaped clips 3, Fig. 2; or one clip only may be used, in which case the member 1 is permanently attached to one edge of the cover. A button may be attached to the member 1 to facilitate manipulation. A tube or loose sleeve mav be assembled on the member 1 to facilitate movement of the pages beneath it.
Patent GB-650215-A (GB)
Title: Improved means for mounting a load-carrier on a cycle
IPC: B62J1/16
Filed: 1948-12-20
Abstract: 650,215. Luggage carriers; children's seats. PAULUS, K. Dec. 20, 1948, No. 32834. [Class 136 (i) ] A suspension device for mounting a load-carrier on a cycle consists of a two limbed gripper, one limb 2 of which embraces a cycle-frame tube 15 by means of a hook 5, while the other limb 1 is secured thereunder by means of a fork 4 bearing against the tube 15 and a supporting member 3 embraces the limbs of the gripper in such a way that under the action of the weight of the carrier and the load, the limbs are pressed towards one another for clasping the tube 15. The member 3 is formed as a slide displaceable along the gripper and consists of a flanged plate having holes 8, 9 for the passage of the limbs 1, 2 respectively. The load-carrier 13 is hinged at 10 to one end of the slide and is attached to it by means of tension springs 12 at the other end. When the carrier is loaded the springs stretch and exert a force on the member 3 which presses the gripper limbs 1, 2 together. One of the gripper limbs may be variable in length. In a modification, Fig 3, the fork at the end of the lower limb 1 has downwardly bent legs 1a which can laterally enclose the lamp-bracket of the cycle.
Patent GB-1221770-A (GB)
Title: Toy musical instrument
Inventor: GLASS MARVIN IRVING
IPC: G10H5/04
Filed: 1969-07-01
Abstract: 1,221,770. Resistors. M. I. GLASS, [trading as MARVIN GLASS & ASSOCIATES]. 1 July, 1969 [24 Feb., 1969], No. 33065/69. Heading HIS. [Also in Divisions G5 and H2] In a toy musical instrument involving a transistor oscillator, the variable resistance 22 is obtained by forming a uniform coating of graphite on a piece of paper provided with a template 30 by rubbing with a graphite pencil 24.
Patent GB-172650-A (GB)
Title: Improvements in or relating to water-turbine wheels with adjustable blades
IPC: F03B3/14
Filed: 1921-12-09
Abstract: 172,650. Storek, I. [Firm of]. Dec. 10, 1920, [Convention date]. Regulating.-In a water turbine wheel h a v i n g adjustable blades 1, a packing such as 2 or 3 is inserted between the shank of the blade and its bearing to prevent ingress of water.
Patent GB-388879-A (GB)
Title: Improvements in and relating to enclosed electrical apparatus
IPC: H02G5/06
Filed: 1931-11-30
Abstract: 388,879. Switchgear structures. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Huber, H. J. H. ; 423, Strathmore Road, Upper Darby, Pennsylvania, U.S.A.) Nov. 30, 1931, No. 33167. Convention date, Nov. 20, 1930. [Class 38 (v).] A support for bracing a heavy lead-in cable 3 against longitudinal thrust comprises a wood A-frame having legs 9, 10 bolted together and braced by a cross-piece 12. The legs 9, -10 are bevelled to abut on a metal casing 1, and the connection between the A-frame and the conductor_ 3 consists of rigid metallic strips 13, 14 bolted to the conductor and to the midportions 16, 17 of the legs 9, 10 respectively. Flexible braid conductors 8 make electrical connection between the conductor 3 and a lead-through conductor 7 which passes through an insulator 5 to electrical apparatus such as metal clad switchgear. The casing 1 is earthed, and an insulating shield 6 may be 'interposed between the insulator 5 and casing 1. The casing 1, which has a cover-plate 18, is filled with oil.
Patent GB-1303292-A (GB)
IPC: E06B9/323
Filed: 1970-07-08
Abstract: 1303292 Suspending curtains MITSUI BUSSAN K K 8 July 1970 [9 July 1969] 33230/70 Heading A4B A curtain box comprises a top plate 1, side walls 2, 2', at least one curtain runner track 3, 3', and shelf 4 all formed integrally by extrusion, the shelf 4, side wall 2 and top wall 1 forming a housing to receive a blind box 7. Shelf 9 has slots to allow the strings of the venetian blind to pass through, and the box may be closed by member 10. The box may be supported, as shown, by means of bracket 15 with plate 13 gripping flanges 12, 12', or may be supported by screws passing through a vertical flange integral with the box, Fig. 2 (not shown). The side walls 2, 2' need not be of equal height.