baber/WOPTO huggingface dataset:
Patent GB-273127-A (GB)
Title: Improvements in trussed framework in which the members are tubular
IPC: E04B1/58
Filed: 1926-10-02
Abstract: 273,127. Ulbricht, R., and Buchwald, R. Oct. 2, 1926. Ironwork, constructional; strutting.-The tubular members a of a trussed framework are connected together by plates c to which they are welded, and the tubes and plates are caused to engage by the provision of slots in the tubes a, as shown in Fig. 1, or in the plates c, as in Fig. 4, or in both the tubes and plates, as in Fig. 5. The tubes a may be connected to junction plates, the end of a tube being then pro. vided with a plate which is secured as described above and is riveted to a junction plate. A connecting plate may be bent back on itself, as shown in Fig. 8, so that it embraces a junction plate. The slots in the tubes may be V-shaped as shown in Fig. 9, the ends of the tubes being bent together before or after insertion of the connecting plate. When a connecting plate is fixed intermediate of the ends of a tube, the latter may be provided with two diametrically opposite slots for engagement with the plate.
Patent GB-195328-A (GB)
Title: Apparatus for giving instruction in the game of putting
IPC: A63B57/00
Filed: 1922-09-09
Abstract: 195,328. Goudie, A. N., and Geddes, J. S. P. Sept. 9, 1922. Golf-practising appliances.-In a conical putting trap of the kind wherein the sloping wall is divided into a number of hinged sections, the hinge mounting for the sections consists of a ring having a depth half that of the trap, and the sections are made with truly plane surfaces. The sections 1 are hinged at the points 2 to the ring 3, and tilt as the ball passes over them, afterwards resuming their normal positions.
Patent GB-669996-A (GB)
Title: Improvements in or relating to signalling systems
Inventor: WINTERBOTHAM HAROLD
IPC: H04J3/18
Filed: 1948-09-18
Abstract: 669,996. Band-width reduction. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 26, 1949 [Sept. 18, 1948], No. 24519/48. Class 40 (iv). [Also in Group XXXVIII] Apparatus for modifying the frequency spectrum of signals such as speech for transmission, particularly the compression of the frequency spectrum for the purpose of effecting economy in transmitting circuits, comprises the employment of a recording medium in the form of a wide tape having magnetic wires diagonally spaced thereon, and a recording head or heads having a gap or gaps arranged in the form of a curve across the band such that at one edge of the tape frequencies impressed on the wires are reduced with respect to a reproducing head placed perpendicularly across the tape, while at the other edge an increase of frequency takes place, an intermediate progressive change of frequency occurring across the tape. In the embodiment described with reference to Fig. 6, the tape is considered to be divided into a large number, such as 50, of discrete longitudinal bands, although for simplicity the Figure shows the number to be 10. Each band is reserved for a narrow band of frequencies, the mean values of which are arranged across the tape in logarithmic frequency relationship. The signal to be transmitted is applied simultaneously to all of the transducers Rl to R10, and the slope of the gaps is so arranged that the mean value allotted to each particular frequency band is converted to 593 cycles/second when reproduced by pick-up heads S1 to S10. The signals collected by heads S1 to S10 are passed through separate filter units 63 designed to pass an appropriate width band about the frequency 593 c/s. and re-applied to the tape via recording heads T1 to T10, the original signals on the tape being at the same time erased by an erase head E fed with electrical oscillations of supersonic frequency. The signals so recorded are picked up by pick-up heads P1 to P10 which are arranged with slopes parallel to the curve 65 whereby the frequencies are re-expanded, but by a considerably smaller percentage than the original compression, a logarithmic variation of frequency being still maintained across the tape. The resulting signals are combined together for transmission to a remote receiving apparatus where they may be received by similar apparatus in which the signals are received by recording heads corresponding to heads P1 to P10 and eventually reproduced in their original form by the heads corresponding to R1 to R10.
Patent GB-451066-A (GB)
Title: Improvements in or relating to horizontal oil engines
IPC: F01L3/08
Filed: 1935-01-24
Abstract: 451,066. Valves. BRUSH ELECTRICAL ENGINEERING CO., Ltd., and SENIOR, G., Falcon Works, Loughborough, Leicestershire. Jan. 24, 1935, No. 24545. Divided out of 435,827, [Group XXVII]. [Class 135] [See also Group XXVII] A removable valvecarrying unit comprises a sleeve 16, fitting in a bore in a cylinder head and formed with a seat for the valve head 14, and a separate valve guide 18, supported on partitions 18a, 16b, which bound a cooling water space 19, access to which is provided by pipe ' connections 17. The provision of two ports 16a in the sleeve 16 render it reversible. Side thrust of the valve rocker 24 is taken by a sleeve 22, integral with the valve guide, inside which reciprocates a guide member 20. The invention is applicable to an engine, pump, or other mechanism employing a poppet valve. Specifications 134,490, [Class 7 (ii)], and 435,827 are referred to.
Patent GB-597971-A (GB)
Title: Automatic record changers
IPC: G11B17/16
Filed: 1945-09-21
Abstract: 597,971. Magazine gramophones. BLASH, R. F. Sept. 21, 1945, No. 24560. [Class 40 (ii)] A magazine gramophone, in which records are stacked before play on a stepped centrepost, includes means for lifting and swing- ing the pick-up arm by a single lever operated by a cycling cam disc, a dog - clutch which couples the cycling cam-disc to a moving part of the mechanism when the run-in groove is reached, means for switching over to manual operation, and a latch at the top of the centre-post which prevents displacement of other than the lowest record of the stack yet allows unrestricted passage of the records on and off the centre-post. Fig. 9 shows a lever 113, which is mounted for vertical and horizontal pivotation on a post 122, and which has a pin 123 at one end engaging a cycling cam-disc 72 and a knife-edge 112 at the other end, which engages a notch 111 on a member 108, mounted on the pick-up arm spindle 98, thereby effecting the rotation and lifting movements of the pick-up arm 97. During playing of a record, a dog-clutch 83, which couples the cam-disc 72 to a continuously moving gearwheel 79, is held out of engagement by a trigger 88, shown in an underside view in Fig. 4. The trigger 88 forms part of a "tap-tap" mechanism with lever 99 and projections 104 on a disc 82 fixed to the gear-wheel 79, whereby the trigger 88 is withdrawn when the pick-up reaches the run-off groove at the end of the record. An "on-off" lever 96, Figs. 1 and 4, operates a switch 171 controlling the motor circuit, and has a knob 166 which may be moved forward into a third position in the middle of the aperture 167, for use when manual operation is required. When this is done, a part 172 of the ' on-off" lever 96 engages a lug 173 on the lever 88, which then cannot be moved by the "tap-tap" mechanism and the dog-clutch thus remains inoperative and a record-changing cycle cannot be started. During a recordchanging cycle the lowest record of the stack is unseated from the step 46 of the centre-post 41 by au abutment member 48, Fig. 13, mounted on a bell-crank lever 65, which is pivoted at the point 66 and has at its lower end a roller 69 which makes contact with the suitably-shaped outer edge of the cam-disc 72. The abutment member 48 can be rotated manually through 180 degrees so that two sizes of record may be used, the lower end being connected by a linkage to the lever 113 so that the pin 123 can be moved to contact either an inner or outer surface of the cam-disc 72, and the position at which the pick-up is lowered, thereby controlled according to the diameter of the record. The upper end of the centre-post 41 is slotted to accommodate a latch 51, which is retained by a pin 53 and which has a curved slot 54 to permit up and down movement. The shape of the latch 51 and position of the slot 54 is such that sideways movement of all but the lowest record is prevented, whilst permitting records to be passed freely on and off the end of the centre-post 41.
Patent GB-246639-A (GB)
Abstract: 246,639. Allom, G. Dec. 17, 1924. Reflectors.-Coloured lighting effects are obtained by means of a reflector built up of a series of 'flat strips or sections of glass tinted with the same or different colours, the strips being curved and jointed so that, when assembled, they have a common focus, as described in Specification 234,905.
Patent GB-730158-A (GB)
Title: Improvements in and relating to display and like devices
IPC: G09F7/02
Filed: 1953-09-08
Abstract: 730,158. Signs. HORTON, W. G. Sept. 8, 1953 [Dec. 17, 1952], No. 24823/53. Class 3 (2). [Also in Group XXXVIII] In or for a display device comprising perforated plates adapted to receive and retain indicating means of various forms, the plate proper 32 is of rectangular or square shape and has at its horizontal and vertical edges integral rearwardly extending main flanges 33 arranged at right angles thereto and meeting in four corners 34, the main flanges having integral inwardly projecting auxiliary flanges 35 arranged parallel with the plate 32, the main and auxiliary flanges being cut away as at 36 for a short distance from the corners both at the horizontal and vertical edges to leave the auxiliary flanges in hook-like form so that they are adapted to engage shaped carrier rails 43. The perforations include parallel rows of slots 38 which define imaginary squares. The arrangement of the slots 38 is such that half size slots 39 can be positioned at the edges of the plate to co-operate with similar half size slots in an adjacent plate so that a regularly perforated surface of any desired extent can be built up: The flanges 33 are cut away below these half size slots as indicated at 40 to enable indicators to be inserted in such slots. The flanges 33 are provided with bolt holes 41 so that adjacent plates may be connected together. Each imaginary square defined by the slots 38 may have a hole at its centre for a peg or other suitable indicator. A plurality of perforated members can be connected together by angle section framing members, 46, 47 and the upper member may also be used to carry transparent screening member 51, the member 51 either having a hooked upper end or having a hook attached to its rear to engage a flange. In the latter case the upper edges of the screen may be used as a rail for a cursor. These indicators may be made of strip or sheet material having tabs preformed or otherwise which engage two or more slots 38; to assist in holding the tabs in the slots, a backing plate may be provided behind the perforated plate which engages the ends of the tabs. Wire supports for pieces of cardboard may also be sprung into the slots 38. Indicators may also be carried by metal plates having tabs which engage the perforations 38.
Patent GB-334686-A (GB)
Title: Improvements in telegraphic systems
IPC: H04L12/18
Filed: 1929-08-15
Abstract: 334,686. Lorenz Akt.-Ges., C. Feb. 6, 1929, [Convention date]. Transmitting systems for code telegraphy.- Two or more conference circuits for telegraphy are aranged in cascade. Each conference circuit may comprise polarized retramsmitting relays A1, A2, A3, adapted to receive a discharge from the condenser CO each time the key ST is closed, and to pass on the signals simultaneously to several subscribers' lines TL, a, trunk line VL, and a line KL leading to a further similar conference circuit which is thus arranged in cascade and feeds a number of subscribers' lines TL1, TL2 and, if desired, a further conference line. The circuit is suitable for fire calls and similar omnibus messages.
Patent GB-518422-A (GB)
Title: Improvements relating to route setting systems for railways and the like
IPC: B61L19/06
Filed: 1938-08-24
Abstract: 518,422. Railway signals. WESTINGHOUSF BRAKE & SIGNAL CO., Ltd., VENNING, C. F D., and PROUD, H. M. Aug. 24, 1938, No. 24944. [Class 105] A panel diagram shows by a line of lights the route set up by a route setting relay. The track sections on the panel may have lamps of different colour lit when they form parts of different routes. Entry of a vehicle causes the track section on the panel to be lit in red either in place of or together with the route lamp. When a route 1-2 is set up by a route relay 1-2LR lamps X1, X3 and X4, X6 are respectively lit over points indicator contacts PKR and QKR route relay contacts 1-2LR, and track relay front contact XTR. Entry of a vehicle causes lamps XO, XO1 to be lit over track relay back contact XTR and extinguishes the route lamps X1, X3; X4, X6. If a route 1-3 is set up the crossover is at reverse and now lamps X2, P2 are lit over the points indicator contact PKR at reverse, route relay contacts 1-3LR, and track relay front contact XTR ; lamps P3, Y2 are lit over the contact PKR at reverse, the route relay contact 1-3LR, and a track relay front contact YTR Specification 499,340 is referred to.
Patent GB-874112-A (GB)
Title: Improvements in or relating to welding
Inventor: EATON NORMAN FRANK
IPC: B23K9/167
Filed: 1958-08-01
Abstract: Argon for use in arc welding (see Group XXII) is preheated and purified by passage through a heated copper tube containing uranium chippings which act as a getter for impurities such as oxygen.
Patent GB-621672-A (GB)
Title: Improvements in or relating to basic aluminium chloride
IPC: C01F7/57
Filed: 1944-12-13
Abstract: Basic aluminium chloride solution for use as a deodorant is made by adding a purified, freshly prepared, wet aluminium hydroxide gel to aqueous aluminium chloride solution, heated to 90 DEG  C., continuing heating till the solution clears, and filtering if necessary. Specification 123,720, [Class 1 (iii)], is referred to.ALSO:Basic aluminium chloride solution for use as a body deodorant is obtained by adding a purified, freshly prepared, wet aluminium hydroxide gel to an aqueous aluminium chloride solution at 90 DEG C., heating till the solution clears, filtering if necessary, and adding water to bring the specific gravity to 1.26.  Specification 123,720, [Class 1(iii)], is referred to.
Patent GB-467252-A (GB)
Title: Manufacture of cyanine dyes and of sensitised photographic emulsions
IPC: G04C23/34
Filed: 1935-09-09
Abstract: The Specification comprises methods of preparation of symmetrical and unsymmetrical cyanine dyes and styryl dyes derived from a quaternary salt of 2-methyl-b .b <1>-naphthothiazole. All the subject matter of the Specification appears to be comprised by Specification 452,408. Specifications 412,309, 439,359, and 445,538 also are referred to.
Patent GB-481879-A (GB)
Title: Improvements in and relating to stereoscopic kinematographic projection
IPC: G03B35/24
Filed: 1936-09-15
Abstract: 481,879. Stereoscopic kinematography. DUDLEY, L. P. Sept. 15, 1936, No. 25142. [Class 97(1)] Projected images comprising substantiallyvertical alternating strips of right-eye and left-eye images, viewed through a grid, are oscillated horizontally to enable all observers to obtain a stereoscopic effect. The distance between the centres of adjacent strips may be one three-thousandth or less of the distance between the screen and the nearest observation point, and the grid may comprise wires of flat, round, or other section or be a ruled transparent screen having opaque lines substantially three times as wide as the spaces between them. The grid and screen may be curved about one or more axes, and the separation of the lines of the grid, and the width of the spaces between them, may vary from the edges to the centre of the grid. The image oscillation may be effected, when a single projector 9 is used, by projecting on to a mirror 10 reflecting to the screen, and oscillating the reflector through an angle such that the amplitude of the image oscillation is the distance between the centres of adjacent strips ; the mirror oscillation may be effected by an electrically-maintained tuning fork, or by a cam, eccentric, &c., and the frequency may equal the picture frequency. Other means for producing the image oscillation may be used, for example, oscillating or rotating prisms or lenses in the beams from a single projector or from two projectors, feed mechanism moving the film transversely, means for oscillating the whole projection apparatus, &c. The film used for projection may be prepared from a single film exposed in a twin-lens camera having means for superposing the images and provided with a line grid, or from a film obtained by photographing the image projected on to a screen from two projectors with the aid of a line grid. Alternatively, projection may be effected from two films having complete right and left images, with the aid of a line grid.
Patent GB-189283-A (GB)
Title: Improvements in cinematographic apparatus
IPC: G03B21/32
Filed: 1921-09-22
Abstract: 189,283. Michetti, G. Sept. 22, 1921. Escapements for obtaining intermittent motion. -Intermittent movement is imparted to a drum 1 in a kinematograph apparatus from a continuously-rotated gear-wheel 3 by means of a wheel 4, loose on the shaft of the drum 1 and gearing with wheel 3 and connected by a spring 12 to a boss 11 on the drum 1. Teeth 10 on the boss 11 are alternately engaged and released by teeth 9 on a balance wheel 8, which is made to oscillate about a pivot at 8<1> by means of an eccentric 7, mounted on the same shaft 6 as a pinion gearing with the wheel 3.
Patent GB-240308-A (GB)
Title: Free wheel clutch
IPC: F02N99/00
Filed: 1924-10-24
Abstract: 240,308. Armstrong, J. J. V., (Maybach Motorenbau Ges.). Oct. 24, 1924. Clutches, free-wheel. - In a free - wheel clutch with roller grips, means are provided for lifting the grips out of contact in free-wheeding. The application to engine starting-gear is shown, 1, Fig. 1, being the starting-shaft and 5 the engine shaft. In starting, a wheel 3 drives a disc 7 through rollers 8 in the direction of the arrows C, D. Fig. 2. The rollers 8 are held in a cage 10 which is lightly gripped frictionally by the disc 7 on the engine shaft. When the engine starts, the disc 7 overruns. The cage 10 is carried with the disc 7 ahead of the wheel 3 far enough to cause the locsened rollers 8 to ride. up on a set of shelves 15 projecting from the wheel 3. The wheel 3 comes to rest and the rollers 8 are out of contact with the rotating parts.
Patent GB-773638-A (GB)
Title: A method of forming pipe offshoots on pipes of thermo-plastic synthetic materials
IPC: F16L47/30
Filed: 1955-09-03
Abstract: 773,638. Moulding branched pipes. FOCKENS, M. S. Sept. 3, 1955, No. 25356/55. Class 87(2). A pipe 1 of a thermoplastic synthetic material e.g. polyvinyl chloride, is put in a mould comprising two parts 2, 3, the part 3 having a branch portion 4 designed to mould an off-shoot from the pipe 1, and the pipe is heated and subjected to internal pressure whereby the wall expands into the mould portion 4, forming a bulge which, when the end is removed, constitutes a branch or offshoot from the main pipe. A convenient means for heating is a hot glycerine bath and the internal pressure is conveniently exerted by compressed air which is preferably cold to preserve the new shape of the material. Hot glycerine under pressure may also be applied inside the pipe.
Patent GB-419979-A (GB)
Title: Improvements in and relating to machines for mixing paints or other materials
IPC: B01F15/00
Filed: 1933-09-13
Abstract: 419,979. Mixing - machines. SONSTHAGEN, A., 10, Broad Walk, Snaresbrook, London. Sept. 13, 1933, No. 25400. [Class 86.] In a mixing-machine for paints &c. means for clamping mixing vessels of different sizes co-axially with the mixing-tool comprise a pair of simultaneously operated clamps which engage projections on the vessels, and the mixing-tool consists of an apertured disc having skirt portions which gradually approach the centre, together with blades. The clamping arms 30, Fig. 2, are mounted to slide on a pair of bars 29 and are operated by a rod having threads of opposite pitch engaging mating nuts on the arms. The outer ends of the arms engage projections 28 on the vessel and are provided with clamps 36. The mixing-tool comprises a disc 40, Fig. 7, having skirt portions 42 which cause the material to flow inwardly and are mounted on the hub 45 by radial arms 46 having depending blades or scrapers 48. Inclined arms 43 are mounted on the skirt portions in the plane of their lower surface and have their under surfaces cut away. The arms 46 may be streamlined.
Patent GB-386038-A (GB)
Title: Improvements in or relating to processes of producing preparations of opium
Filed: 1931-09-10
Abstract: Opium preparations substantially free from ballast and containing all the opium alkaloids are prepared by first precipitating the morphine and narcotine from an alcoholic solution of an opium extract by adding ammonia water, separating the precipitate and dissolving it in hydrochloric acid, preparing a hydrochloric acid solution of the alkaloids of the mother liquor either in the liquor itself or after extracting the alkaloids with chloroform, purifying the latter solution, either alone or mixed with the hydrochlorides of morphine and narcotine, removing the purifying agent and finally evaporating the combined solutions of the alkaloid hydrochlorides.  Examples are given of the use of phenol and a paste of ferric hydroxide as purifying agent.ALSO:Opium preparations substantially free from ballast and containing all the opium alkaloids are prepared by first precipitating the morphine and narcotine from an alcoholic solution of an opium extract by adding ammonia water, separating the precipitate and dissolving it in hydrochloric acid, preparing a hydrochloric acid solution of the alkaloids of the mother liquor either in the liquor itself or after extracting the alkaloids with chloroform, purifying the latter solution, either alone or mixed with the hydrochlorides of morphine and narcotine, removing the purifying agent, and finally evaporating the combined solutions of the alkaloid hydrochlorides.  Examples are given of the use of phenol and a paste of ferric hydroxide as purifying agent.