baber/WOPTO huggingface dataset:
Patent GB-953582-A (GB)
Title: Improvements in or relating to vehicles having lifting gear
IPC: B66F9/065
Filed: 1961-03-09
Abstract: 953,582. Luffing arm load handling trucks. BRAY CONSTRUCTION EQUIPMENT Ltd., and H. H. REEDERS. March 7, 1962 [March 9, 1961], No. 8735/61. Heading B8H. In a vehicle provided with a luffing boom 22 pivotally supporting a head 10, a carriage 36 provided with forks 11 is movable on the head transversely of the vehicle by means of a double acting hydraulic ram. As shown in Fig. 1, the head 10 comprises sideplates 12 and intermediate plates 16 supporting transverse L-section guides 14, 15 and is pivoted at 20 to the boom 22 and at 19 to the piston-rod 28 of an hydraulic ram 29 pivoted, through a lever 31, to the boom 22. The carriage 36 comprises side plates 37 connected by L-section guides 38, 39 and roller assemblies are located between the guides 14, 38 and between the guides 15, 39. Each roller assembly comprises a bar, Figs. 3, 4 (not shown), provided at each end with a slot in which is mounted a roller, the two rollers having their axes at rightangles to each other. The carriage 36 is moved transversely of the vehicle by a double-acting hydraulic ram in which the piston-rod 50 extends from both ends of the cylinder 47 and engages the side plates 37 of the carriage and the cylinder 47 is secured to intermediate plates 16 of the head 10. The forks 11 are adjustably mounted on cross-members 51, 52 of the carriage 36. In a modification, Fig. 5 (not shown), the guides 38, 39 are inverted and engage conical rollers mounted on longitudinally extending axles on the head 10. In a further modification, Fig. 6 (not shown), the carriage comprises a vertical transverse plate having its upper and lower edges engaged with grooved rollers mounted on longitudinally extending axles on the head 10. In a further modification, Figs. 7, 8 (not shown), a pair of rods secured to the carriage are slidably mounted in horizontally extending bearings.
Patent GB-217675-A (GB)
Title: Improvements in or relating to sound directing or amplifying horns and like acoustic apparatus
IPC: G10K13/00
Filed: 1923-03-27
Abstract: 217,675. Graham, E. A. March 27, 1923. Tone-arms. - The soundconduit of a gramophone is constructed in two or more sections fitted together plug- and-socket fashion with an interposed bushing of elastic or yielding sound-insulating, sound - deadening or non- sonorous material such as rubber, cork, felt, soft lead or fine copper wire. In one construction, the nozzle f<1> of a sound-box f is provided with a bushing g and is fitted into the smaller end of a curved member a, the other end of which terminates in a socket a<1> into which the trumpet member b is inserted, the two members being separated by a. tubular bushing d and held together in a readilydetachable manner by bolts e. Specification 191,801, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-1308154-A (GB)
Title: Hand held labelling apparatus
IPC: B65C11/02
Filed: 1970-02-24
Abstract: 1308154 Hand held labelling apparatus K D HERMANN 24 Feb 1970 [27 Feb 1969 17 April 1969 10 May 1969] 8808/70 Heading B8F In order to permit the use of different widths of label web in a hand-held labelling apparatus, a feed device (for withdrawing the web from a centrally-located reel) is freely accessible from outside the casing of the apparatus to permit the manual alignment of the centre line of the label web with the centre plane of the feed device. As shown in Fig. 1, labels 31<SP>1</SP> on a backing tape 29 are withdrawn from a reel 33 by a feed device comprising a belt 27 having pins 28 engaging centrally disposed perforations in the tape. The belt 27 passes around wheels 24, 26 and is driven by a ratchet pawl 23 pivoted on a pin 6 carried by levers 7 which are pivoted at 8 to the casing of the apparatus. An actuating lever 3 is pivoted to a hand grip 1 and has a slot engaging the pin 6. The label tape is fed from the reel under a roller 44 and over a press plate 15, which are carried by the levers 7, and thence around the end of the plate 15 to detach the labels and over a roller 34 adjustably mounted in the casing to the drive belt 27. The tape is guided from the apparatus through a duct 38 in the hand grip. The levers 7 carry a roller 17 for pressing the labels on to articles and have arms 18 on which are pivotally mounted cranked levers 19 carrying an inking roll 20 co-operating with a stationary printing mechanism 22. On depressing the actuating lever 3, the levers 7 are pivoted clockwise so that the roll 20 first inks the printing mechanism and then is swung clear so that on completion of the pivotal movement the label resting on the plate 15 is pressed against the mechanism. The pawl 23 moves idly to engage the next pin 25 on the belt wheel 24. On release of the lever 3 a spring 13 pivots the levers 7 anticlockwise and the pawl drives the belt 27 through a step sufficient to detach a label. The reel is mounted by hemispherical members engaging the central recess of the reel, the hemispherical members being resiliently mounted in the casing to accommodate reels of different widths. The casing is open at the bottom to facilitate engagement of the drive pins 28 in the perforations in the tape when inserting a new reel. In a modification, Fig. 3, the tape drive belt is replaced by a sprocket wheel having pins 28 engaging the perforations, a drive pawl 55 engaging the sprocket pins 28 and being mounted on a lever 53 which is pivoted about the sprocket wheel axis and connected to the levers 7 by a pin-and-slot connection. During clockwise movement of the levers 7 prior to inking a label, a tape length of about half a feed step is withdrawn from the reel, the driving sprocket being held stationary during this movement by a resilient detent plate 65. The presser roller 17 is replaced by a comb 61 having resilient teeth 64, and the detached labels are supported on a member 62 carried by the levers 7. In a further modification the web is passed around a rod adjacent the edge of the plate 15 to detach the labels.
Patent GB-1042811-A (GB)
Title: Improved process and means for imparting twist to yarns
IPC: A01G27/00
Filed: 1964-03-03
Abstract: Nylon or polyethylene terephthalate continuous multifilament yarn is false-twist crimped by use of a friction-twisting head, Fig. 1 (not shown) comprising a rotary annular component 2 the bore 3 of which merges into outwardly flared ends presenting convex friction-engendering surfaces 2a, 2b, which engage and support yarns Y, Y1, travelling diagonally through the component.  The twist effect is increased by passage of yarn(s) through successive, aligned heads, Fig. 2 (not shown).  Two or more oppositely false-twisted ends may be consolidated into one yarn.  A modified head, Figs. 3-5 (not shown) comprises releasably interlocked portions 2c, 2d, (each providing a friction surface) with a common driving gear or pulley 4 therebetween and each mounting a fixed, part-circular, shielded, heating or cooling element 8.  A twisting machine, Figs. 6 and 7 (not shown) comprises sections S each incorporating heaters, aligned twisting heads and wind-up and take-off bobbins 16 and 14 at the front and rear.  The heating elements may be retractable and associated with automatically openable and closeable heat-retaining covers (not shown).
Patent GB-1122363-A (GB)
Title: Fastener stud for assembly in an aperture support
Inventor: PEARSON ARTHUR STANLEY
IPC: F16B21/08
Filed: 1966-03-01
Abstract: 1,122,363. Studs. CARR FASTENER CO. Ltd. 24 Jan., 1967 [1 March, 1966], No. 8923/ 66. Heading E2B. A stud comprising a one piece moulding of synthetic plastics material includes a head 1, neck 2 and opposed arms 6, 7 formed with shoulders 9, the ends of the arms remote from the head being connected by a flexible bridge element 8, which extends inwardly between the arms. The stud may be used for securing an apertured trim pad to a correspondingly apertured vehicle body panel. A sheet of flexible synthetic plastics, e.g .polythene, may be interposed between the trim pad and the panel, so that upon insertion of the stud through the corresponding apertures, part of the polythene sheet is drawn through the panel apertures to form a dust and moisture seal.
Patent GB-945320-A (GB)
Title: Improvements in photomicrographic apparatus
IPC: G03B7/083
Filed: 1961-03-10
Abstract: 945,320. Photomicrographic apparatus. C. REICHERT OPTISCHE WERKE A. G. March 10, 1961 [ March 10, 1960], No. 8950/61. Headings G2A and G2J. [Also in Division G1] A photomicrographic apparatus comprising an optical lens system for directing image-formforming light rays towards a shutter operable by energization of an electromagnet and by an electric timer device arranged to control the duration of energization of said electromagnet and consequently the duration of opening of said shutter, includes an optical beam-splitter in the path of said rays for deflecting a fixed proportion of said rays capable of forming a visible image of an eye retina and means for adjusting the illumination of a comparison field coincident with said visible image, said adjustable means including a light alternating device adjustable to control the proportion of light reaching said field from an external light source, and said timer device including a time setting member mechanically coupled to said light attenuating device so that the duration of opening of the shutter is related to the adjustment of said light attenuating device in such manner that the product of the illumination of said comparison field and the duration of opening of the shutter is constant. As shown, image-forming light from a microscope (only barrel 1 of which is illustrated) is directed through an electromagnetically operated shutter 3 to a camera 4. Part of the light beam is directed by a prismatic beamsplitter 2 through a lens 5 and is focused on to a ground-glass screen 7, the visible image produced thereby being observed through a lens 8. Light from a lamp 9 is also directed by a lens 11 and a mirror 12 on to the screen 7 to form a comparison field, the brightness of which may be varied and made equal to the surrounding visible field by adjusting the position of a neutral wedge filter 10. For this purpose, filter 10 is coupled through a rack 15 and a pinion 14 to an adjusting knob 13. The knob 13 is coupled by way of its shaft 16 to a rotary switch 18 having resistors 19 coupled to an electrical timer 17 for operating the shutter 3. To allow for film sensitivity or other exposure factors, the pinion 14 is adjustably coupled to the knob 3 and shaft 16 in that (as shown in Fig. 3) a bushing 21 rigid with pinion 14 carries a leafspring 20 bearing a projection 22 which is engageable in any of a number of holes in a flange 23 of the knob 3, a manually operable projection 24 being provided on the leaf spring and a scale 25 of film sensitivities being provided on knob 13 for cooperation with a fixed index 26. Alternatively, such factors as film sensitivity may be allowed for by inserting an additional light attenuating device into the path of rays passing through lens 5 or by adjusting the intensity of the light source 9.
Patent GB-590049-A (GB)
Title: Improvements in or relating to joining and registering devices for moulding boxes
IPC: B22C21/10
Filed: 1945-04-11
Abstract: 590,049. Dowel pins FAURE, B. April 11, 1945, No. 8961. Convention date, May 31, 1944. [Class 89 (ii)] [Also in Group XXII] A resilient pin for aligning adjacent sections of a moulding box comprises a coil spring with contacting coils subjected to comparatively high pre-stress, the outer surface of the spring having been machined to cylindrical form. One end 3 of the spring 1 may be pointed to facilitate its insertion through the lugs 5 of superimposed sections 6 of a moulding box. The lugs extend for nearly the full depth of the sections, the distance 8 between two adjacent lugs being such that opposite ends of one coil 9 of the pin bear on both lugs in order to withstand shearing stresses. The wire of the spring may be of round or square section.
Patent GB-1394812-A (GB)
Title: Method for desulphurizing exhaust gas by alkali metal sulphite-gypsum process
IPC: B01D53/50
Filed: 1973-02-23
Abstract: 1394812 Desulphurizing exhaust gases KUREHA KAGAKU KOGYO KK 23 Feb 1973 [23 Feb 1972] 9007/73 Heading C1A Exhaust gases containing sulphur oxides are treated with a solution of alkali metal sulphite, the bisulphite produced being subjected to a double decomposition reaction with calcium carbonate to give calcium sulphite which is separated, the mother liquor being recycled to the absorption stage, the calcium sulphite being suspended in part of the absorption liquid while adding sulphuric acid to lower the pH below 5 and to produce gypsum, separating the gypsum and recycling the mother liquor to the double decomposition stage. The gypsum producing step is preferably conducted at 40 C. for 80 minutes, and the pH is preferably between 2 and 4. Fine gypsum of particle size of more than 50 microns is produced.
Patent GB-1457101-A (GB)
Title: Two-stroke piston and cylinder combination
IPC: F02B25/14
Filed: 1975-03-04
Abstract: 1457101 Two-stroke engines BRUNSWICK CORP 4 March 1975 [23 April 1974] 9030/75 Heading F1B Inlet passages 15, 16, 17 for charge, e.g. mixture, are formed as open channels in the wall 18 of the cylinder 10 and the piston 50 has a convexly surface joining its side wall to its top wall which surfaces co-operates with the passages to define the charge inlet ports. The cylinder 10 may be die cast integral with the cylinder head 11 and a portion 49 of the crank-case in a hyperentectic, silicon aluminium alloy, tapered cores forming the passages 15, 16, 17. The Specification gives details of the angular relationship of the walls of the passages 15, 16, 17 in relation to the position of the exhaust port 14.
Patent GB-637930-A (GB)
Title: Process for increasing the sulphuric acid content of aqueous sulphuric acid
IPC: C01B17/74
Filed: 1947-04-03
Abstract: The sulphuric acid content of aqueous sulphuric acid is increased by adding sulphur monochloride thereto and passing chlorine gas into the mixture which is continuously stirred, the hydrochloric acid which is formed being removed by blowing out the reaction product with air. In one modification, hydrogen sulphide may be used instead of the sulphur chloride, and in another modification sulphuryl chloride may be used instead of the sulphur chloride and chlorine.  The aqueous sulphuric acid may be obtained by the decomposition of sodium sulphate by hydrochloric acid. Specifications 411,818, 618,548 and 625,058 are referred to.
Patent GB-991213-A (GB)
Title: Improvements in the grinding of metal surfaces
Inventor: THOMPSON WALTER HENRY
IPC: B24B1/00
Filed: 1963-03-07
Abstract: 991,213. Grinding. J. A. CRABTREE & CO. Ltd. March 3, 1964 [March 7, 1963; Nov. 28, 1963], Nos. 9055/63 and 46978/63. Heading B3D. Metal surfaces are ground by a rotatable grinding-wheel or disc 1 having on its circumferential surface steps 1a of increased diameter for simultaneously removing thin layers from the workpiece during one traverse or pass of the wheel or disc. The grinding-wheel may be mounted on the electric motor-driven spindle of a surface grinding machine having a table for traversing the workpiece past the grinding wheel, the table also being movable transversely of the grinding wheel so that the grinding wheel removes layers from the workpiece. As described, the grinding wheel has three steps, the first and second steps removing layers 0.004 to 0.006 inch thick and the third step removing a layer 0.001 to 0.002 inch thick. The annular faces between the steps may be at right-angles to the axis of the disc for dry grinding or inclined or cut back to provide a space for coolant during wet grinding. The metal surface may be cylindrical and the grinding wheel rotated about an axis parallel to the workpiece and moved axially along the workpiece.
Patent GB-644340-A (GB)
Title: Improvements in an aluminium fish hold for a trawler or like fishing vessel
Inventor: FRY ERIC ROSEWARNE
IPC: B63B35/24
Filed: 1948-03-31
Abstract: 644,340. Cargo boards. BROOKE MARINE, Ltd. March 31, 1948, No. 9070. [Class 113 (i)] In an aluminium fish hold wherein the joists and stanchions are constructed of aluminium and are of angle, channel or multi-channel sections, the pound boards are of aluminium and are corrugated, the depth of the board being such as to fit within a channel of a joist or stanchion, the end flanges being normal to the general plane of the board so that each end flange may act as an abutment for the contiguous end flange or may fit into the channel of a joist. Fig. 1 shows stanchions 12 accommodating vertically arranged pound boards 13 having end flanges 14. Fig. 2 shows a joist 16 fitted on top of a vertical pound board 13 for supporting horizontal boards 18, 19. The fish hold has sides, ends and ceiling lined with aluminium panels as described in Specification 644,341.
Patent GB-1363396-A (GB)
Title: Sine cosine frequency tracker
IPC: H03L7/06
Filed: 1973-02-23
Abstract: 1363396 APC systems SINGER CO 23 Feb 1973 [14 April 1972] 9101/73 Heading H3A An apparatus for tracking the centre frequency of an input FM signal as in a radar landing system or airborne doppler radar comprises an arrangement 10, 18 for generating two signals of equal frequency but having a quadrature phase relationship, modulator - filter arrangement 32-42 for obtaining the difference frequencies between the input signal and the generated signals, differentiators 44, 46, multipliers 72, 74 for multiplying the modulator outputs by the time derivatives of the modulator outputs of the alternate channel, a subtractor 84 an integrator 94 for deriving an error signal from the subtractor output for frequency control of the generating arrangement 10, 18. In operation, an output of the controlled oscillator 10 is divided down by a 90-degree phase splitter 18 and the split signals are used to derive the difference frequencies between the input signal and the generated signals. The outputs of multipliers 72, 74 when combined in a subtractor 84 yields a signal proportional to the power level of the input signal and to the frequency difference between the input signal and the generated signals. During the acquisition mode, i.e. when an aircraft is receiving ground transmitted signal, a switch 92 is open and a switch 96 is closed so that the output of subtractor is applied to an integrator 94. A further switch 114 remains open during the acquisition mode so that the oscillator 10 frequency is maintained at its value determined during previous scan by the error voltage stored at capacitor 116. After the pass-by of the transmitted beam, the switch 114 is closed so that the oscillator frequency is updated to the value of the centre frequency of the received signal.
Patent GB-664283-A (GB)
Title: Improvements in or relating to a windshield washing system
IPC: B60S1/48
Filed: 1949-04-04
Abstract: 664,283. Windscreen cleaners. TRICO PRODUCTS CORPORATION. April 4, 1949 [April 24, 1948], No. 9130/49. Class 138 (i) [Also in Group XXVIII] In a windscreen washing system in which a source of fluid pressure is placed in communication with, or with means acting on, liquid in a reservoir, so as to cause liquid to be discharged from a nozzle, means are provided so that the liquid flow is interrupted and the operative pressure is relieved when a predetermined volume of liquid has to be delivered, and the pressure communication directly or indirectly with the liquid is interrupted by means responsive to the relieved pressure. The embodiment shown in Fig. 1 utilizes a source 17 of superatmospheric pressure. When a push button 30 is operated, a valve 19 is opened and pressure is applied to liquid in a transfer chamber 13 within a reservoir 6 by means of pipe 18, chamber 21, outlet 20, pipe 8 and a pipe 11, and thus discharges liquid through a pipe 10 and a nozzle 3. The chamber 21 is in communication with a chamber 25 by a passageway 26. The valve 19 is retained in the open position by the pressure differential on a piston 22 and a valve 27 having a seat 29 so that once the push button has been depressed pressure may be removed therefrom. When the liquid level in the transfer chamber 13 falls below the level of the pipe 10, pressure is reduced in the chamber 26, owing to the venting of the chamber 13 via the nozzle 3, sufficiently to allow a spring 28 to unseat the valve 27 whereby the valve 19 is closed under pressure from the source 17. The chamber 13 is refilled by gravity through a valve 15 in readiness for the next operation. In the embodiment shown in Fig. 2 suction from the engine manifold 53 is applied through a valve 50 and pipe 45 to a motor chamber 35 the piston 37 of which is connected to a pump piston 39 in a transfer chamber 36. The piston 39 has ports 40 communicating with the reservoir 42, and a loose plate valve 41. When a push button 57 is depressed the valve 50 is opened against the urge of a spring 51 and is retained in the open position by suction in a chamber 46 acting on a valve 54 seated at 61. The piston 37 is lifted so that the piston 39 discharges liquid through a pipe 44 to the nozzle 3. As the piston 37 approaches its upper limit of travel it compresses a spring 66 to open a vent valve 65 and thus cause an increase in pressure in the chamber 46 so that the spring 51 can unseat the valve 54 and reseat the valve 50. The piston 39 is then moved downwardly by a spring 43 so that the chamber 36 is recharged with liquid in readiness for the next operation.
Patent GB-565255-A (GB)
Title: Improvements in crucible furnaces
IPC: F27B14/14
Filed: 1943-06-10
Abstract: 565,255. Crucible furnaces. GUEST, F. G. June 10, 1943, No. 9310. [Classes 51 (i) and 51 (ii)] In a crucible furnace having a separate inner casing F resting by a flange f on an outer casing A so as to provide a jacket f<2> through which air is blown to the space below the grate d<1>, the pipe H leading from the blower connects with a horizontal duct h cast on or secured to the casing A and extending on each side of the pipe H to oppositely disposed apertures h<1> in the inner casing, these apertures communicating with vertical open-topped passages j<2> from which the air passes downwardly through the jacket f to the grate. The inner casing F has inset flanged plates J forming the passages j<2> and is cast with two pairs of walls k, k between which the refractory lining G is filled in, this arrangement providing, as shown in Fig. 2, four-passages k<3> in the jacket for the downward passage of'air. The grate d<1> is supported on lugs c<2> projecting upwardly from a detachable base fitting C which is formed with an ash-discharge aperture c closed by a plate E adapted to be swung horizontally about a pivot e by a handle e<3>.