baber/WOPTO huggingface dataset:
Patent GB-729066-A (GB)
Title: Venetian blind slats and means and method of making same
IPC: E06B9/266
Filed: 1952-10-28
Abstract: A Venetian blind slat is made of a thermoplastic organic polymer, particularly polystyrene or polyvinyl chloride, which has been pre-stressed by stretching in the general plane of the slat in at least one direction, the slat having a transverse curvature. Specification 585,164 is referred to.ALSO:A venetian blind slat is manufactured by heating a sheet of material containing a thermo-plastic organic polymer, particularly polystyrene or polyvinyl chloride, stretching while in a softened condition in at least one direction substantially co-planar to the plane of the sheet, moulding the material to produce a transverse curvature therein, and severing and forming a strip therefrom to form a venetian blind slat. Specification 585,164, [Group IV], is referred to.
Patent GB-1552469-A (GB)
Title: Absorbent articles
IPC: A61F13/53
Filed: 1976-06-29
Abstract: The insert to be worn on the body is capable of absorbing body fluids. For this purpose, it comprises an inner layer (24), an outer layer (22) and an absorbent basic body (26) of wood cellulose fibres in between. This wood cellulose contains lignin, so that the wettability is reduced and the elasticity of fibres wetted by use is improved. The essential feature is that the average length of the fibres is 1.0 to 1.9 mm. This insert can be used as diaper or sanitary towel. <IMAGE>
Patent GB-811728-A (GB)
Title: Signal-to-noise squelch control circuit
IPC: H03G3/26
Filed: 1955-09-23
Abstract: 811,728. Radio receiving systems. COLLINS RADIO CO. Sept. 23, 1955 [Jan. 13, 1955], No. 27160/55. Class 40 (5). A radio receiver has its detected audio signal divided into signal and noise components by series connected parallel resonant circuits 23, 28 acting as band-pass filters responsive respectively on to the signal frequency band and a portion of the noise frequency spectrum outside the signal band. The filter outputs are then rectified in opposition by rectifiers 33, 35 of opposite polarity and a portion of the rectified signal voltage ES added to the rectifier noise voltage EN and the sum applied to a D.C. amplifier 43, 44 operating below a certain threshold voltage EO to energize a relay 10 and disconnect the receiver detected audio signal from an output stage. The arrangement is such that a proportionately higher signal voltage ES is required to overcome the noise generated voltage EN provided the threshold operating voltage on the D.C. amplifier is zero, i.e. the receiver operation is dependent on a signal-to-noise ratio, which may be selected and adjusted by a tapping D on a potentiometer 38 across the signal voltage ES. A capacitor 59 across the D.C. amplifier input ensures the disabling of the receiver output being slow, yet its re-connection being rapid. Also, a positive voltage may be connected to the terminal 64 to ensure that, on the output being reconnected, the connection is positively retained for about at least 3 seconds.
Patent GB-423257-A (GB)
Title: Improvements in or relating to telephone transmitters
IPC: H04R1/22
Filed: 1933-10-03
Abstract: 423,257. Transmitters. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and SUTTON, G. W., 25, Cranleigh Road, Merton Park, both in London. Oct. 3, 1933, No. 27185. [Class 40 (iv)] A telephone transmitter, more particularly of the carbon granule type, comprises an air chamber or space in which pressure variations take place and a passage in communication therewith which offers low impedance to low frequency sound waves and high impedance to high frequency sound waves whereby the effect on the diaphragm of low frequency components of sound waves is considerably reduced. The transmitter shown comprises a disc, Fig. 1c, having a central aperture o for the sound waves and adapted to be positioned in front of the conical diaphragm d of the transmitter capsule, Fig. 2F, so as to form a tapering air chamber or space ac as shown in Fig. 6. The flange f of the disc is formed with a number of distance pieces s, Fig. 6, which rest on the capsule ring cr and form air passages which together with recesses and cutaway portions in the body and cover portions of the housing place the chamber ac in communication with the space in the housing to the rear of the transmitter capsule, the path of the low frequency vibrations being indicated by the arrows in Fig. 6. The transmitter capsule is supported by a pin at the rear of the housing which enters the end of screw sc, Fig. 2F. The aperture o may be covered by an auxiliary diaphragm.
Patent GB-389756-A (GB)
Title: Improved stamp perforation gauge
IPC: G01B5/16
Filed: 1932-09-30
Abstract: 389,756. Stamp-perforation gauges. KRIEGLER, K., 44, Krichbaumgasse, Vienna. Sept. 30, 1932, No. 27188. Convention date, Nov. 5, 1931. [Class 106 (ii).] Comprises a plate from which project groups L, M, N of pins l, m, n, small bars and/or ribs e .. k said pins &c. being adapted in cross section and spacing to the perforations of the stamps or the like. To use the ribs, the stamp is placed substantially vertical to the plate and agreement or otherwise observed. With the pins the stamp is placed parallel or at an angle to the plate. The number of perforations per standard distance is marked near the particular group of pins &c.
Patent GB-605204-A (GB)
Title: Improvements in or relating to building construction
IPC: E04B2/06
Filed: 1945-10-17
Abstract: 605,204. Building-blocks; walls. BULLEN, J. A. Oct. 17, 1945, No. 27243. [Classes 20(iv) and 87 (i)] Two adjoining edges of a rectangular building block 1, Fig. 2, are provided with a projecting continuous bead 4 serving when the block is erected with similar blocks for forming a wall, to engage the beads of adjacent blocks whereby levelling and plumbing is facilitated and to provide spaces such as the space 34, Fig. 6, for subsequent filling with a pointing composition, spaced projections 5, 8 being provided in the said adjoining edges and spaced recesses 10, 13 on the two opposite edges for engagement with corresponding recesses and projections on adjacent blocks. In order to reduce the weight of the block a cavity 17 may be provided in either or both of its major faces. The block 1, Fig. 7. for use in building a cavity wall has a wing 18 which may be situated toward or at either end of or on either face of the block. The block may alternatively have a T-shape for use in inter-tying a partition wall to a further wall. A corner block for use in combination with any of the blocks described above has a bead 4, Fig. 15, extending only partially along the upper edge, the block being of reduced thickness in the part not provided with a bead. The thick portion of the block may extend only partially in a downward direction. A beam supporting block 23, Fig. 17, also for use in combination with the other blocks described, has a bead 4<1> and projections 5 (not shown) on its upper edge 2<1>, and a laterally projecting flange 24 has rows of recesses 10<1> for engagement with projections on adjacent lower blocks. The Provisional Specification describes a block in which the projecting lugs extend across the beaded edges of the block between the two major sides. In the building of a wall, a horizontal wall beam, e.g. a base beam, an intermediate floor beam, or a roof supporting beam, is formed from a series of beam supporting units 23, Fig. 18, arranged end to end, the longitudinal flanges 24 forming a continuous shelf, a temporary shuttering member 47 being applied to form a channel which is filled with concrete with or without reinforcement. The horizontal beam may intersect and be integral with one or more vertical concrete columns formed in a corner space or spaces.
Patent GB-748915-A (GB)
Title: Improvements in and relating to optical projection apparatus
Inventor: BUTCHER FREDERICK JOHN
IPC: G03B21/10
Filed: 1952-10-30
Abstract: 748,915. Photographic enlargers. JOHNSONS OF HENDON, Ltd. Oct. 30, 1953 [Oct. 30, 1952], No. 27321/52. Class 98 (1). Photographic projection printing apparatus incorporating illuminating means, a stage for supporting a transparency and having an aperture therein, and an objective, is provided with a mirror between the objective and the stage and close to the stage but at all times clear of the projected beam, and a window such that the operator can see an image of the aperture in the stage in the mirror without interference with the projection of the image on to the receiving surface. As shown, a photographic enlarger comprises a lamp house 16 and negative carrier 42. supported on a base-plate 17 which is slidable along the guide rails 18. A mirror 39 (Fig. 4) is provided in which an operator can see an image of the aperture in the negative carrier by looking through the window 44. Tne mirror is fixed in part of a box comprising two sides 38 and a base 36 to wnich the bellows is attached. The other part of the box comprises the stage 42, window 44 and sides 43 and is pivoted to the first box part at 41. An overcentre spring 45 holds the movable part in either the up or down position. The stage comprises a glass plate 47 on which the negative is placed and an adjustable guide bar 49. A mask support 53 is provided, pivoted to the stage at 54. When the stage is swung downwards, the mask support remains up, being held by magnets 58, 59, and merely slides forward, but it may be swung down by means of the handle 57 for changing the mask. The objective 27 is carried by a lens board 28 which is connected at one end to a bell-crank lever 29, pivoted on the base 17, the other end of the lever moving over a cam surface to give automatic focusing. The projected beam passes through a glass plate 20 and is reflected by a mirror 19 on to the light-sensitive material held against the glass plate 11 by a pressure pad 13. The pad 13 is treadle operated by levers 14, which also operate the light switch. A pilot light may also be provided in the lamphouse for use when centring the negative by means of the mirror. The window 44 may be of non- actinic glass.
Patent GB-216442-A (GB)
Title: Improvements in pumps for delivering measured quantities of liquids
IPC: G01F11/04
Filed: 1923-10-31
Abstract: 216,442. Budd, H. Oct. 31, 1923. Rack and pinion actuated pumps.-In a rack-actuated measuring pump for liquids an additional stop 15 is provided on the rotatable rod 8 carrying the various measuring stops, the function of the additional stop being to lock the pump against actuation by engaging the lug 5 on the actuating rack 4. The rod 8 is locked in this position by means of a padlock securing the actuating arm 13 of the rod 8 to a fixed lug 16.
Patent GB-151634-A (GB)
Title: Apparatus for turning over pages
IPC: B42D9/06
Filed: 1920-09-25
Abstract: 151,634. Al Bustany, S. Sept. 25, 1919, [Convention date]. Leaf-turners.-In a leaf-turner a friction finger b<3> is adjustably mounted on a lever b pivotally connected by a lever b<2> to a spring-controlled slide c adapted to be operated from a treadle by a flexible wire c<1> connected to a knob c<3>. During the movement of the slide c, the. finger b<3> is caused, by the engagement with a ramp b<5>, to push up the end of the page and curve up the latter between the finger and a spring-controlled finger f carried by a stirrup f<1> on the frame baseplate g. Further movement of the slide c causes, by the engagement of cam c<5> on the slide c with the end of the finger f, the latter to be moved out of contact with the page and at the same time, by the engagement of a projection c<4> with an adjustable stop d<1> to move a spring-controlled rack d to rotate a pinion e carrying an arm e<2> to which is adjustably secured an arm e<4> carrying a roller e<5>. This roller is thus inserted under the curved part of the page and is rotated to turn the page over. When the pedal is released, the slide c, rack d, and fingers f and b<3> resume their original positions. The device may be worked by hand by pulling the knob c towards the knob h.
Patent GB-1308368-A (GB)
Title: Vacuum cleaning system incorporating a silent hose coupling
IPC: F16L55/02
Filed: 1970-06-05
Abstract: 1308368 Vacuum cleaning system CLARKSON INDUSTRIES Inc 5 June 1970 [5 June 1970] 27410/70 Heading A4F [Also in Division F2] A vacuum cleaning system for a building comprises an exhauster 5 connected via conduit 7 to a dust separator 6, a piping system 8, 8a, 8b connecting with outlets 14 in the walls of the building, each outlet being protected by a moveable cover 15 and comprising a plug valve and interlock system (see division F2) such that the valve in the outlet cannot be moved until a cleaning hose nipple has been inserted in one end thereof, and the cleaning hose nipple cannot be removed unless the valve is closed.
Patent GB-243694-A (GB)
Title: Improvements in and relating to induction furnaces
IPC: H05B6/24
Filed: 1925-10-31
Abstract: 243,694. Ajax Electrothermic Corporation, (Assignees of Northrup, E. F.). Nov. 29, 1924, [Convention date]. Induction furnaces. - In an ironless induction furnace the frequency and the resistivity and diameter of the charge are so relatecl that the induced currents do not penetrate to the axis of the charge. This condition is stated to be satisfied in a furnace with a single coil if D=50,000 #P/N where D =diameter of charge in ems., N=frequency, and p=resistance of charge in ohms. per cubic cm. The primary coil may consist of a water-cooled flattened copper tube a having a diameter twenty times the flattened width and is separated from the crucible b containing the charge by a mica cylinder d and heat insulation c. The power factor is corrected by means of condensers in series or shunt with the primary coil. The Speci. fication contains various formulae connecting the variable quantities met with in induction furnace design, and the calculation necessary for the design of an 80 k.w. furnace for melting brass in 600-pound lots. Reference has been directed by the Comptroller to Specifications 13184/08, 111,844, 119,220, 214,717, and 218,967.
Patent GB-655229-A (GB)
Title: Improvements in or relating to operating circuits for moving-coil loudspeakers
IPC: H04R3/04
Filed: 1948-10-22
Abstract: 655,229. Circuits for loudspeakers. COLE, Ltd., E. K., and HUTCHINGS, E. L. Oct. 22, 1948, No. 27479. Drawings to Specification. [Class 40 (iv)] The speech coil of a moving-coil loudspeaker is shunted by a resistance which is substantially equivalent to the impedance of the speech coil at bass resonance of the loudspeaker. The resistance may be built into the loudspeaker if desired.
Patent GB-771949-A (GB)
Title: Improvements in or relating to liquid flow meters
IPC: G01F3/18
Filed: 1955-09-27
Abstract: 771,949. Liquid meters. HEWLETT, A. J. (Wayne Pump Co.). Sept. 27, 1955, No. 27483/55. Class 69 (2). A liquid meter comprises cylinders 64, 65 at 120 degrees to each other and containing pistons 79, 81 operatively connected to a crank-shaft 75 which rotates a register mechanism, liquid being admitted to the head end of the cylinders to drive the pistons inwardly, and to the crank case to give an outward stroke. The pistons are 120 degrees out of phase. A rotary valve 82 fast with the crank-shaft co-operates with stationary ports 48, 49, 51 communicating with the crank case and the head end of the cylinders, and the valve is formed with a port 167 open to an outlet passage 53, and with " wings " 168, 169 defining therebetween a port 171 which opens the stationary ports to an inlet chamber 72 of the casing. To prevent the valve being pressed too tightly upon its seat a plate 173 is mounted on the crank-shaft and spaced above the valve by a snap-ring 175. The space between the plate 173 and the valve is open to the outlet port 167 to counterbalance the upthrust of the exhaust liquid, and the resultant force on the valve is reduced to the inlet pressure acting upon the peripheral portion of the valve. Varying stroke.-Each piston-rod has a transverse slot in which a common crank-pin 154 is engaged, and is formed with a slide 135 extending into a guide bore provided in the meter casing. To ensure that the register will accurately indicate the delivered volume of the liquid, the crank-pin.154 is mounted on a flexible leaf 152 secured at its end remote from the crank-shaft to a crank arm 76. A screwthreaded adjustment rod passes through a bore in the crank-shaft and bears on the free end of the leaf 152. By altering the position of the adjustment rod the effective throw of the crank, and hence the stroke of the pistons, is varied.
Patent GB-715632-A (GB)
Title: Improvements in or relating to shaving brushes
Inventor: JUNIOR ERIC LEOPOLD HUGO COSBY
Filed: 1951-11-23
Abstract: 715,632. Shaving brushes. KENT & SONS, Ltd., G.B. Nov. 20, 1952 [Nov. , 23, 1951], No.27569/51 Classes 19 and 61 In a shaving brush comprising a short cylindrical handle 10 with a clump of nylon bristles 15 extending from one end thereof, the bristles are mounted as an array of separate knots each mounted within its own recess or socket formed in the brush handle. In a preferred arrangement the bristles are mounted within a tapered insert member 17 which fits into a correspondingly tapered recess in the handle proper. The insert may be cemented within the handle in addition'to or instead of being a tapered. fit therein. The bristles are trimmed to produce a flat upper surface 27. The handle 10 is provided with four longitudinal flats 13 so that it is approximately octagonal in cross-section. Specification 20912/09, [Class 61(i)], is referred to.
Patent GB-916310-A (GB)
Title: Apparatus for adjusting the rotor blades of an axial fluid flow turbine or compressor
IPC: F01D7/00
Filed: 1960-08-09
Abstract: 916,310. Axial flow turbines and compressors. SULZER FRERES S.A. Aug. 9, 1960 [Aug. 20, 1959], No. 27582/60. Classes 110 (1) and 110 (3). In a mechanism for adjusting the rotor blades of at least one stage of an axial flow turbine or compressor during operation, two actuating pistons 1, 2, mounted in a common stationary cylinder 3 are reciprocally movable relative to each other and are articulated by means of linkages to two-armed lovers 13, each of which is connected to a blade spindle 14. One arm of each lever is connected to one of the pistons and the other to the other piston. Pressurized oil is fed to the stationary cylinder 3 and the motions of the pistons 1, 2 are transmitted to two plates 7, 8 which may be flat, conical or domed. A rod 9 is provided on the plate 7 for each blade 15 and corresponding rods 10 are provided on the plate 8, the rods being attached to either end of a lever 13 by means of pins 11, 12 respectively. The pins are attached to the rods by screws and nuts and to the levers by ball joints. The mechanism may be used in multi-stage machines in which case rotor hub 16 and all corresponding hubs have apertures through which the extended rods 9, 10 pass. The piston areas may differ if one piston has to overcome a greater resistance than the other.
Patent GB-840801-A (GB)
Title: Improvements in or relating to hydraulic tracer valve controlled systems
Inventor: HAYES HUBERT GEORGE
IPC: B23Q35/18
Filed: 1955-09-28
Abstract: 840,801. Copy-milling. HAYES ENGINEERS (LEEDS) Ltd. Sept. 24, 1956 [Sept. 28, 1955], No. 27624/55. Class 83 (3). [Also in Group XXIX] A bleed-valve for connection in an hydraulic control system comprising a stylus-actuated tracer valve and an hydraulic motor controlled thereby to operate, e.g. a copying-machine tool, comprises a valve body 2 housing a liner 3 slidably mounting a valve piston 15 having an annular recess 22 co-operating with normallyclosed ports 23, 24 in the liner. The valvepiston, which is hollow at its ends, is subjected at one end, on which a spring 19 acts, to the pressure in a passageway 8 connected at 32 to the motor and at 31 to the down-stream side of the tracer valve, and at its other end to the pressure in a passageway 17 connected at 29 to a source of hydraulic pressure and at 30 to the upstream side of the tracer valve. On the stylus moving to close the tracer valve, the fall in pressure in the passageway 8 causes the valve piston to move rightwardly to uncover the ports 23, 24, so that any liquid that leaks past the tracer valve into the passageway 8 is bypassed through a restriction 9 and passages 7, 10, to a sump-passageway 11, to relieve the pressure on the motor so that it stops instantaneously with the closure of the tracer valve.
Patent GB-1211044-A (GB)
Title: Display devices
Inventor: HOSEY HARRY
IPC: A41B15/02
Filed: 1968-06-11
Abstract: 1,211,044. Imitation pocket-handkerchiefs. CONTINTENTAL CLIP CO. Ltd. 10 June, 1969 [11 June, 1968], No. 27633/68. Heading A3V. An imitation pocket-handkerchief comprises a rectangular card 1 approx. 7 x 3 inches, folded over upon itself about 2 inches from one end, the fold-line 2 being cut to form a slot 3 terminating between # inch and “ inch from the edges of the card and a piece of fabric 4 folded into a triangular shape and inserted into the slot 3 leaving a major portion of the fabric projecting from the card 1, the fabric 4 being retained by a line of stitching 5 parallel to and adjacent the slot. The major portion 6 of the card 1 may carry advertising material and may be displayed outside a pocket.
Patent GB-1377256-A (GB)
Title: Preparation of ninhydrin
IPC: C07C49/747
Filed: 1972-06-13
Abstract: 1377256 Ninhydrin NEWTON CHAMBERS & CO Ltd 11 May 1973 [13 June 1972] 27647/72 Heading C2C Ninhydrin is prepared by the reaction of bis-indan-1,3- dione, in the presence of a catalyst, with an oxidizing agent at a temperature greater than 40 C., the catalyst being bromine, iodine, hydrogen iodide or hydrogen bromide or a compound that forms one of these during the reaction and the oxidizing agent being an organic sulphoxide in which the sulphoxide sulphur carries two organic radicals that are either separate or linked together. The preferred oxidizing agent is DMSO. If excess of a sulphoxide oxidizing agent is used it is possible for the excess to serve as a solvent. Otherwise, or in addition, an inert solvent may be included.