baber/WOPTO huggingface dataset:
Patent GB-138855-A (GB)
Title: Improved method and apparatus for regulating centrifugal compressors
IPC: F04D27/02
Filed: 1919-10-22
Abstract: 138,855. Akt.-Ges. Brown, Boveri, et Cie. Feb. 13, 1919, [Convention date]. Regulating. - Centrifugal compressors having a varying speed of resolution and movable guide-blades are regulated by adjusting the guideblades for all working points in such a way as to obtain the beat possible efficiency of the compressor, the position of the guide blades being dependent upon a preliminary adjusting mechanism which is simultaneous under the influence of the final pressure and the volume of the delivery of the compressor, the said adjusting mechanism being in addition dependent on the relative variation between a by-pass and a fixed diaphragm in the supply pipe. Fig. 4 shows one form of the apparatus. The guide-blades a are adjusted by a spring- controlled piston b, the pressure under which is adjusted by a slot d which allows the oil pressure entering the pipe c and throttled at i to have access to the atmosphere or throttles said pressure. Working in the slot d is a piston having a rod e which is influenced simultaneously by a volume-piston f and a pressure-piston g. The pipe m leading to the piston g is throttled at k and the piston casing has a by-pass h. Pipes n, o lead to the piston f. Instead of the by-pass h and the throttling device k, a spring acting on the piston g may be provided.
Patent GB-709299-A (GB)
Title: Improvements in electromagnetic driving devices for the shuttles of looms
IPC: H02K41/03
Filed: 1951-11-06
Abstract: 709,299. Picking motions; beat-up motions. FILTER, W. Nov. 6, 1951, No. 25940/51. Drawings tc Specification. Class 142(2) [Also in Group XXXV] The shuttle and the shuttle race have magnetic poles, those on the race being fed with alternating current to produce a travelling field; the shuttle is braked by poles fed with direct current, alternating current being fed to these poles to accelerate the shuttle. Transverse grooves in the shuttle race or in a non-magnetic strip covering the race accommodate the warp threads during the travel of the shuttle. The shuttle may run on the underside of the shuttle race, or between an upper and a lower race. The slay may be given a dwell at back centre by striking an abutment, continued movement of the crankshaft being permitted by springs in the connecting rods.
Patent GB-1242782-A (GB)
Title: Improvement in type bar actuating mechanisms for typewriters
Inventor: FRECHETTE KENNETH RAYMOND
IPC: B41J7/02
Filed: 1969-05-22
Abstract: 1,242,782. Typewriters. LITTON BUSINESS SYSTEMS Inc. 22 May, 1969 [8 Oct., 1968], No. 26249/69. Heading B6F. A type lever actuating mechanism comprises a continuously driven toothed snatch roll 28, a sub-lever 23 pivoted at 26 and connected to a type lever 35, a pawl 18 adapted upon depression of a corresponding key lever 10 to be rocked into engagement with a tooth of the snatch roll 28, a spring 20 biasing the pawl 18 out of engagement with the teeth of the snatch roll 28, and a lost motion connection between the pawl 18 and the sub-lever 23. The mechanism prevents repeat action of the type lever 35 if the key lever 10 remains depressed too long by engagement of an ear 16 with an end surface 15b of a hook 15 on the key lever 10. The hook 15 is normally positioned above the ear 16 to rock the pawl into snatch roll engagement upon depression of the key lever. Impact adjustment.-The extent of the rocking movement of the pawl is limited by a finger 34 which is settable by bending and which controls the time of engagement between the pawl and the tooth of the match roll. Machine drives.-The snatch roll is driven by an electric motor (44, Fig. 2) through a belt drive and a flywheel 41 which is connected to a shaft 42 of the snatch roll through a resilient coupling comprising a pin 48 on the flywheel located in a slot 51 in a lever 45 fixed to the shaft 42, the lever 45 and pin 48 being coupled by a spring 52. On engagement between the snatch roll 28 and the pawl 18, the spring 52 is extended and the snatch roll slowed down, but, during the stroke of the type lever 35, the spring contracts, to accelerate the snatch roll and hence the type lever 35.
Patent GB-884808-A (GB)
Title: Improvements in or relating to the production of 4:4-dimethyl-meta-dioxan
Inventor: HELLIN MICHEL
IPC: C07D319/06
Filed: 1959-07-30
Abstract: 4.4-Dimethyl-m-dioxan is prepared by contacting formaldehyde with isobutene dissolved in a solvent selected from paraffinic and naphthenic hydrocarbons, which selectively extracts the reaction products, in the presence of an aqueous solution of a strong mineral acid.  Suitable hydrocarbons are for example, butane, isobutane, pentane, isopentane, hexane, heptane, octane, iso-octane, nonane, decane, undecane, dodecane, hexadecane, eicosane, cyclopentane, cyclohexane, methylcyclohexane, dimethylcyclohexane, ethylcyclohexane, hexylcyclohexane, dodecylcyclohexane, cycloheptane and decahydronaphthalene.  The relative quantities of formaldehyde, isobutene, water and acid and the conditions under which the reaction takes place are as specified in the parent Specification.
Patent GB-1511140-A (GB)
Title: Transporting apparatus
IPC: B60P3/40
Filed: 1975-05-21
Abstract: 1511140 Heavy load transport apparatus RIGGING INTERNATIONAL EUROPE Ltd 21 May 1975 [14 June 1974 27 July 1974] 26393/74 Heading B7B Transporter apparatus for massive loads, e.g. oil rigs, includes three transport units 2, 3, 4 arranged in a triangle and interconnected by a load support, a bolster 14, 13 on each unit for supporting the load support, at least one unit being driven. Each bolster has a depending pivot pin which is received in an open ended cylinder on each unit. The cylinder of one unit is fixed (Fig. 2, not shown) but those of the other units are slidable on a table (Fig. 3, not shown). The tables have concentric upstanding rings flanking the cylinders to guide the movement thereof.
Patent GB-867817-A (GB)
Title: Improvements in or relating to window frames
IPC: E06B3/96
Filed: 1959-08-04
Abstract: 867,817. Window frames. ANDERSON, J. F., and SMITH & PEARSON Ltd. Aug. 4, 1959 [Oct. 7, 1958], No. 26528/59. Class 20(3) A main window frame of rectangular shape which can be fixed directly into a building structure or incorporated into a timber framework comprises four lengths, of extruded aluminiium section 2, Figs. 2 and 3, assembled with the ribs 7 facing inwardly and the lengths are recessed as required at the ends to overlap at each corner to be connected together by selftapping screws 8, Fig. 12, passing through holes in one length 3 to engage in the circular channel 6 of an adjoining length. The main frame may be sub-divided by mullions and/or transoms of extruded aluminium section 9, Fig. 2, with ribs 12 corresponding to ribs 7 and are tenoned into the main frame. The edges of a fixed pane of glass 32 are covered with a strip. of Neoprene 33 and are secured by aluminium channel-shaped glazing beads 34 fitting between the ribs such as 7, 12 on the members 9, 10 and the Neoprene strip 33. An inner frame to carry a pair of vertically sliding sashes constructed as a unit detachable from the main frame has jambs and the head rail formed from extruded aluminium section 16, Fig 2 and the sill of section 20, Fig. 3. the web of which has a curved extension with sloped portion 20 to form a weather strip, the inner -frame members being connected at the corners:by self tapping screws as in the main frame. The sash frames are formed of extruded aluminium H-section 24, Fig. 2, 3, having a rib 241 adapted to run along the edge of the channel 14 or 15, Fig. 2, formed in the inner frame 16 to guide the sash in its sliding movement, and balancing spiral springs 25 are accommodated between the sash frame and inner frame. The top rail of the lower inner sash has its open channel closed by a section 29, Fig. 3, affording a finger grip to manipulate the lower sash and the top rail is also fitted with a Neoprene draught excluding strip 30. The panes 26 in the sashes have their edge portions covered with a Neoprene strip 27 and are secured against the longer limb of the inner channel of the sash frame section by aluminium glazing beads 28 fitted between the strip 27 and the shorter limb of the inner channel of the sash frame section.
Patent GB-464197-A (GB)
Title: Improvements in stereoscopic rangefinders having stationary measuring marks
IPC: G01C3/16
Filed: 1936-10-01
Abstract: 464,197. Range-finders. ZEISS, C., [Firm of]. Oct. 1, 1936, No. 26626. Convention date, Oct. 5, 1935. [Class 97 (i)] In a stereoscopic range-finder comprising two telescope systems each having a number of stationary measuring marks, the marks in each system are disposed on a surface differing from a plane at right-angles to the optical axis, each mark lying in the plane in which the objective of the telescope images an object the distance of which from the objective corresponds to the mark graduation. In Fig. 2, each mark system consists of a plane-parallel glass plate made of two similar wedges h. i cemented together, the marks k, which are observed by the eyepiece l, being formed on the inclined cemented surface. Owing to refraction by the wedge i the marks appear to the observer to lie in a plane m, and this plane can be made to lie at right-angles to the axis of the eyepiece by using a mark system of the form shown in Fig. 3, comprising a wedge made up of two wedges h, n cemented together.
Patent GB-943974-A (GB)
Title: A mobile lift
IPC: B66F9/04
Filed: 1961-07-22
Abstract: 943,974. Guided platform hoists. L. EVANS, and L. R. L. EVANS, [trading as LENSON ENGINEERING CO.]. June 29, 1962 [July 22, 1961], No. 26642/61. Heading B8H. The carriage 3 of a hoist, comprising inclined guide rails 2 mounted on a wheeled chassis 1, is provided with an operative's platform 20 and a load-supporting platform 21, the movement of the carriage along the guide rails being controlled by foot-operated switches on the platform. The carriage is raised by a cable 36 and an hydraulic ram operated by a pump 28 driven by an electric motor 29 and an accumulator 30 supported on the chassis, and is lowered under gravity, the flow of fluid from the ram cylinder 32 being controlled by an electromagnetic valve. Control of the motor 29 and of the electromagnetic valve is performed by two foot-operated switches on the platform 20. The chassis 1 is supported at one end on wheels 12 and at the other end is provided with feet 13 and with castors 16 mounted on a spindle 14 which is rotatably supported at the lower end of the guide rails 2. As the carriage 3 reaches its lowermost position, it engages pins 18 on arms 17 secured to the spindle 14, thereby rotating the spindle and lowering the castors 16 to raise the feet 13 from the ground. It is stated in the Provisional Specification that the two platforms may be relatively movable.
Patent GB-297427-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1928-09-18
Abstract: 297,427. Associated Telephone & Telegraph Co., (Assignees of Lomax, C. E.). Sept. 21, 1927, [Convention date]. Automatic exchange systems.-In a system in which a connector only is used for setting up a connection, dialling tone, is connected thereat by the energization of a change-over relay in series with the release relay on seizure, and is disconnected when the change-over relay releases at the end of the first digit. In order to ensure that the called subscriber's cut-off relay energizes before ringing is initiated, the switching relay does not directly connect up ringing tone, but closes a late-acting armature to energize a relay which then initiates ringing. The connector is held until both subscribers hang up, but, when the calling subscriber hangs up first, the rotary shunt relay is momentarily operated to disconnect a guarding earth applied by the switching relay to allow the said subscribers to be released. Setting up connection. On seizure of connector H, line relay 4 energizes .followed by please relay 5 and change-over relay 6 in series. The latter connects dialling tone at 38 to the calling line. Relay 6 is held during the first digit over its lower winding, but since its upper winding is shorted by off-normal contacts 56.it releases at the end of the digit, disconnecting dial tone. The second digit is repeated to the rotary magnet and relay 10 in parallel. Line busy. Before relay 10 releases, busy relay 8 energizes from earth on contact 72, and locks up to earth at 36, connecting busy tone BT to conductor 21. When the caller hangs up, relays 4, 5, 8 release in turn, and the switch returns to normal. Line idle; completion of connection. When relay 10 releases, switching relay 11 energizes over its lower winding in series with the wanted subscriber's cut-off relay 76 and magnet 81. To prevent ringing current operating line relay 77, relay 11 does not directly initiate ringing but energizes a ringing relay 9 which connects up ringing tone at 48, 49 to the called line, and ring- back tone at 58. When the called subscriber answers, ring cut-off relay 7 pulls up and switches the connection through. Back-bridge relay 3 operates as usual, and also opens the release magnet circuit at 33. Release. The connector is not released until both subscribers hang up. When the calling subscriber hangs up, relay 10 pulls up between the release of relays 4, 5 to remove earth at 52 from connection over the lower winding of relay 11 to release conductor 22. Thus when relay 5 releases, the calling subscriber is released and when relay 10 again releases, the connector is busied from earth at 52, relays 11, 7 being held by earth at 30. When the called subscriber hangs up, relay 3 releases 7, 11 and completes the release magnet circuit.
Patent GB-929580-A (GB)
Title: Improvements in or relating to testing for the presence of a component in liquors
Inventor: NICHOLS JOHN WINFRITH DE LISLE
IPC: G01N21/75
Filed: 1960-08-02
Abstract: <PICT:0929580/III/1> A method of testing for a component in liquors comprises the intermittent withdrawal of a small fixed quantity of liquor to be tested, and mixing it with a continuously flowing test reagent, the interval between withdrawal being controlled by and proportional to the intensity of colorimetric reaction with the test reagent.  An embodiment uses plutonium nitrate liquor containing component nitrite ion, and using test reagent starch iodide.  As shown in the Figure, solution flowing in duct 10 is forced by restriction 15 to pass through sample pipe 13 containing electromagnetic valve 14 with outlet connection 16 feeding to test cell 20 through which test reagent flows continuously via pipe 19. Photocells 24 and 26 corresponding to test cell 20 and standard 25 feed output to relay 29 which at colorimetric balance closes contact 30, operating pulse generator 31 which opens valve 14 to admit the next sample; the alarm 34, operates when the intervals between pulses are too long or too short, i.e. when there is either excess or virtually no component present.
Patent GB-778747-A (GB)
Title: Improvements relating to tar separators
IPC: C10C1/00
Filed: 1955-09-20
Abstract: 778,747. Gravity-separation apparatus. SIMON-CARVES, Ltd. (Otto & Co., Dr. C.). Sept. 20, 1955, No. 26827/55. Class 46. Water containing thin tar, heavy tar and dirt, e.g. from a gas cooling installation is admitted to a tank 1, whence thin tar is discharged at 3 and water is pumped (5) away at 2 for return to its source by pipe 6. The heavy tar, mixed with the dirt and some thin tar, accumulates in a draw-off tank 13. When sufficient has accumulated, slide valves 14 are closed, and of the valves 7, 8, 11, 12 and 19, formerly closed, valves 7 and 8 are opened, and a three-way valve 16 is turned to effect communication between pipes 15 and 17. Water is thereby forced by pump 5 along a pipe 9 and a pipe connection 10 and through closed straining slide-valve 11 to the draw-off tank 13, from which it removes the thin tar and conveys it along pipes 15 and 17 back to the tank 1. (The valve 11 has a valve plate with small holes and will allow water and thin tar to pass when closed. but will allow heavy tar and dirt to pass only when opened). Then valve 8 is closed, valve 16 is turned to shut off pipe 15 from pipes 17 and 18, and valve 19 is opened. Rinsing water still contained in the draw-off tank 13 thereupon passes through valves 11 and 19 to the thin tar pipe 3 via a pipe 20, any particles of dirt and heavy tar being retained in a straining pot 21. The upward flushing of tank 13 is thereafter repeated until, by visual inspection of the end 22 of pipe 17, the water is seen to be free of tar, after which rinsing water is again drawn off through valve 19. Finally valve 19 is closed and valves 11 and 12 opened to permit discharge of heavytar and dirt from tank 13 via pipe connection 10. The apparatus is restored to normal operation by closing valves 7, 8, 11, 12, 16 and 19 and opening valves 14.
Patent GB-680132-A (GB)
Title: Improvements in or relating to refuse chutes
IPC: E04F17/12
Filed: 1949-10-19
Abstract: 680,132. Refuse shoots. BROADS MANUFACTURING CO., Ltd., and TAYLOR, C. G. Aug..31, 1950 [Oct. 19, 1949], No. 26892/49 Class 26 [Also in Group XXX] The refuse shoot comprises a glazed earthenware pipe consisting of sections 10 and branched inlet sections 11 at each floor lead. The pipe is set in concrete, part 15 of which forms a continuation of the branch. A sheet metal box 18 having stop 19, side and rear walls 21, . 22 is fitted in the concrete at the opening' and is welded to a T-section frame 17. A hopper for the refuse has front and rear wells 27, 28, and side members 29. A bar 25 welded to the hopper passes through loops .24 and . a bracket 23 secured to the. T frame, the hopper being pivotally mounted. The hopper which is self-closing has a resilient strip 32. provided at the top An air vent 33 is material is deliof the pipe and the vered to a receiving bin 35 on wheels at the bottom of the pipe.
Patent GB-426556-A (GB)
Title: Improvements relating to securing boxes, bales and the like
IPC: B65D63/12
Filed: 1933-09-30
Abstract: 426,556. Baling. GERRARD INDUSTRIES, Ltd., Victoria House, Vernon Place, Southampton Row, London.-(Meto Ges. ; 350, Vogelsangerstrasse, Bickendorf, Cologne, Germany) Sept. 30, 1933, No. 26965. [Class 94 (i)] In forming an intertwisted helical bale tie joint, wire of oval or flattened cross-section having a major axis 1¢ to 2¢ times greater than the minor axis and having an elongation not greater than 5 per cent is used. The bending to form the helix takes place mainly transversely to the major axis. The joint may be formed by engaging the overlapping ends by holding slots at the ends of the joint and engaging the centre portions 3, 4 by a twisting pinion. The slots are preferably an easy fit for the minor axis of the wire. Transverse deformation as shown in cross-section in Fig. 2 takes place as the wires are interengaged by the twisting. The parts 3, 4 may overlap slightly.
Patent GB-889141-A (GB)
Title: Improvements relating to roller apparatus for rotatably supporting cylindrical objects
Inventor: YATES HERBERT
IPC: B23K37/053
Filed: 1957-08-27
Abstract: 889,141. Pipe supports. YATES PLANT Ltd. Nov. 24, 1958 [Aug. 27, 1957], No. 26971/57. Class 99(2). [Also in Group XXII] An adaptor for supporting, between the rollers 2 of a rotator, work 4 of smaller-diameter than the spacing of the rollers, comprises a pair of work-supporting-rollers 9 journalled in a frame 5, which has means 7 for locating the adaptor so that rollers 9 seat on the rollers 2. As applied to the rotator of Specification 887,321, which has two linked pairs of rollers 2, the adaptor comprises a pair of two-wheeled rollers 9 on spindles 8 in brackets 5, each having a pin 7 to fit a socket in the rotator-base 1. Alternatively, the adaptor may be pivoted on a single central pin 7 at the junction of diagonal tie-rods between brackets 5. The roller-wheels 9 may have rubber tyres.
Patent GB-865845-A (GB)
Title: Improvements in discharge nozzles for vehicle windscreen washing installations
IPC: B60S1/52
Filed: 1959-08-07
Abstract: 865,845. Nozzles. EISEMANN G.m.b.H. Aug. 7, 1959 [Oct. 24, 1958], No. 27011/59. Class 69 (3). [Also in Group XXIII] A discharge nozzle for vehicle windscreen washing installations comprises an apertured metal ball 8 tightly but rotatably gripped in an integral part of a holder 10, Fig. 4, or a bush 6, Fig. 3, inserted therein, of an elastically deformable material, the gripping part containing a substantially cylindrical passage having a diameter somewhat smaller than that of the ball so that the ball becomes tightly retained in the passage when pressed therein. The ball is adjustable by inserting a needle into its passage 7 and turning it. In the embodiment shown in Figs. 2 and 3, the holder 1 consists of a synthetic material which cannot expand or can expand only slightly whereas, in the embodiment shown in Fig. 4, the holder 1 is manufactured from an elastically expandible synthetic material. The bushes 6 are of synthetic material and, as shown in Fig. 3, include collars 9.
Patent GB-726762-A (GB)
Title: Improvements in or relating to motor vehicle visors
IPC: B60J3/02
Filed: 1953-10-02
Abstract: 726,762. Anti-dazzle screens for vehicles. FORD MOTOR CO., Ltd. Oct. 2, 1953 [Oct. 9, 1952], No. 27039/53. Class 103 (2). A sun visor for a vehicle adapted to be positioned adjacent the interior side of the windscreen, comprises a hinge member 23 extending substantially the entire length of the visor, a frame 27 secured to the hinge member and extending from one end of the visor to an intermediate portion thereof, a sheet metal guide member 28 secured to the frame and forming a continuation thereof, the guide member having an elongated guideway 32 formed at the lower edge thereof and an aligned guideway adjacent the upper edge thereof between the guide member 28 and a portion of the hinge member 23, a visor extension 21 slidable on the guideways and a cover 37 surrounding the hinge member, frame, and guide member. The frame 27 is secured to a flange 24 of the hinge member 23 which has a cylindrical portion 22 within which the horizontal arm 16 of a supporting rod is frictionally received, the rod terminating at one end in a vertical portion 17 pivotally mounted on a bracket secured to the vehicle. The visor extension 21 has a lug 35 which co-operates with a stop screw 36 through the hinge member 23 to limit outward movement of the extension. The frame 27 may be of fibre-board or pressed wood board, the visor extension 21 may be of coloured plastic, either translucent, or opaque, and the cover 37 may be of cardboard or fibrecovered board, with binding around the edges except where the visor extension slides through.
Patent GB-248815-A (GB)
Title: Improvements in reinforced concrete blocks and methods of building linings for tunnels and other purposes
IPC: E21D11/08
Filed: 1924-11-12
Abstract: 248,815. Ingerslev, C. F. A. Nov. 12, 1924. Block paving. - Plainsided concrete blocks for floors, &c. are arranged in courses with their corresponding sides in cortact, and the blocks of alternate courses, or of both series of alternate courses. are tied together so that they clamp between them the blocks of intervening courses, and thereby set up sufficient friction between the sides of the blocks to transmit load stresses. The blocks are rhombic in plan and have plain sides 4. A tie-rod 5 passes centrally through each block and projects at each end. Notches are formed in the end faces to receive the ends of the contiguous blocks and the tie-rod unions of blocks in adjacent courses, amd access notches are also provided. Each block is provided with two pairs of steel frames and such frames may be provided with looped ends, which project beyond the ends of the blocks or into the notches, and receive the tie-rods of adjacent blocks. The rod-connecting means 6 consists of nuts when the rods are screw threaded, and of wedges when the rods are slotted or scarfed. The ends of the blocks may be spaced apart and the gaps filled with cement grout.