baber/WOPTO huggingface dataset:
Patent GB-104936-A (GB)
Title: Improvements in and relating to Filter Presses.
Inventor: BRIGINSHAW FRANK FREDERICK
IPC: B01D25/12
Filed: 1916-03-29
Abstract: 104,936. Briginshaw, F. F. March 29, 1916. Filter-presses comprise a series of frames a supporting pulp' cakes or disks b and having central hollow bosses divided by a partition to form inlet and outlet conduits e, f respectively, the bosses being provided with apertures j, k, in the opposite halves of alternate bosses, communicating with the spaces between the disks b. The frames a are clamped together between a wheeled base p and a pressure plate v operated by a screw z working into a yoke u supported by preferably telescopic posts t, t<1> from the base p. To facilitate assembling, the post t is pivoted at p<1> to the base, and the yoke u can be swung on the post t<1>. Ball bearings at y minimize frictional wear on the packing between the frames a when the screw is operated. Liquid fed in at l flows by the conduit e and apertures j into alternate spaces d between the disks b, then filters through these disks into the remaining spaces and passes by the apertures k and the conduit f to the outlet r. The disks b may be carried by light inner frames a, Fig. 4, fitted into outer rings a<1> of malleable iron or cast steel. Trunnions 3 formed on the handles 2 of each frame a enable the frames to be pivoted to pulp-moulding appliances, described in Specification 105,323, to facilitate the insertion of the disks b into the frames. Eyes are provided on opposite sides of the frame a to be engaged by pins of different diameters to facilitate assembling the press.
Patent GB-758032-A (GB)
Title: Improvements in or relating to hoppers for refuse chutes
Inventor: ROBINSON GERALD
IPC: E04F17/12
Filed: 1954-02-17
Abstract: 758,032. Refuse bins and shoots. BROADS MANUFACTURING CO., Ltd. Feb. 17, 1955 [Feb. 17, 1954], No. 4685/64. Class 26. A hopper assembly for a refuse shoot comprises a frame 10 surrounding a refuse inlet and having an inwardly directed flange 12 having trunnion-receiving means such as lugs or brackets behind it, and being notched at 14 for the passage of the trunnions, and a hopper having a front portion 23 which overlaps a part of the flange 12 and covers the notches 14, and trunnions 26 which can be passed through the notches which are then concealed by the front 23 of the hopper.
Patent GB-166613-A (GB)
Title: Improvements relating to electric transformers
IPC: H01F27/08
Filed: 1920-11-04
Abstract: 166,613. Hackbridge Cable Co., Ltd., and Kennett, W. C. Nov. 4, 1920. Transformer.- A transformer of the shell type is supported on vertical frames B<1>, B<2> provided on opposite sides of the transformer, the laminated core plates A being clamped by horizontal bolts C secured to the frames, and thin metallic plates E interleaved with the core laminations and projecting beyond them are provided to assist in the dissipation of heat from the transformer. Screens of perforated or expanded metal may be used to cover the space enclosed by the frames, and a cover D is provided for the terminals.
Patent GB-391278-A (GB)
Title: Improvements in or relating to flyers for spinning and twisting machines or frames
IPC: D01H7/30
Filed: 1932-02-17
Abstract: 391,278. Spinning and like flyers. HATTERSLEY & SON, Ltd., J. and PETERSEN, W., Spindle Works, Armley Road, Leeds. Feb. 17, 1932, No. 4742. [Class 120 (ii).] The hollow legs o: flyers, particularly roving flyers for pre paring flax, jute, hemp and the like, are o flattened cross-section as shown, whereby greater space for the bobbin is ensured and enabling, for example, the use of 10" x 5¢" or 10" x 5¥" bobbins in machines designed for 10" x 5" bobbins with flyers of the usual construction. The slot may be disposed as shown in Fig. 2 or centrally.
Patent GB-552838-A (GB)
Title: Improvements in tube couplings
IPC: F16L19/12
Filed: 1942-04-11
Abstract: 552,838. Pipe joints. PARKER, A LA R. April 11, 1942, No. 4789. [Class 99 (i)] In a joint in which a ferrule 26 is distorted to grip a pipe 7 by the screwing up of interfitting sleeve coupling members 10, 17 a non- metallic elastic packing ring 31 is interposed between the ferrule and the sleeve 17. The ferrule enters a preformed tapered groove 23 in the pipe which has line contact with a seating shoulder 12. The packing ring is compressed when the joint is tightened until a shoulder 30 on a spacer ring 28 engages a shoulder 19 on the coupling sleeve 17. Further tightening forces the ferrule into the groove 23 and bends its curved top 27 over a nose 16 on the coupling member 10.
Patent GB-452118-A (GB)
Title: Detector circuit for television reception
IPC: H04B1/16
Filed: 1935-02-15
Abstract: 452,118. Valve detecting circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Feb. 15, 1935, No. 4856. Convention date, Feb. 16, 1934. Addition to 435,417. [Classes 39 (i) and 40 (v)] In a grid leak detector for television according to the parent Specification reaction is employed and the L/C ratio of the reaction circuit is made as large as possible to avoid loss of grain and of the high modulating frequencies. Fig. 2 shows the application to a push-pull detector in which the leak resistance is connected to the centre tap of the secondary of the input transformer which is preferably screened from the primary which may be divided in two halves symmetrically arranged. The reaction control is preferably by an earthed rotor in the condenser 9, 9<1> while the capacity of the grids to earth may be balanced by a differential condenser, Fig. 2b '(not shown). Instead of chokes 10, 10<1> in the anode circuit this circuit may be tuned, Fig. 3 (not shown). Fig. 4 shows an arrangement in which a valve with 3 anodes is used anodes 19, 21 being used for reaction and the anode 20 as the output at modulation frequency. The sections of the valve may be separated by electrostatic screens 22, 23. In a modification, Fig. 5 (not shown), the anode 19 is dispensed with and reaction taken entirely from the anode 21, a compensating condenser being provided to avoid lack of symmetry. Screening grids may be provided between the anodes and control grids and may be used for reaction being fed through chokes or tuned circuits.
Patent GB-525144-A (GB)
Title: Improvements in increasing the fire resisting properties of refractory earths and asbestos
IPC: C04B41/65
Filed: 1939-02-15
Abstract: 525,144. Increasing the fire-resistance of asbestos. MATHER, F. F., and TATHAM, G. H. Feb. 15, 1939, No. 4938. [Class 140] [Also in Group V] The heat-resistant properties of asbestos which may be mixed with diatomite, infusorial earth and other refractory earths are increased by the addition of sodium tungstate. Articles made from asbestos or compositions containing asbestos are soaked in or coated with a solution of sodium tungstate. Specifications 440,409 and 519,571, [Group V], are referred to.
Patent GB-766317-A (GB)
Title: Receiving circuit arrangement
IPC: G11B20/14
Filed: 1954-02-19
Abstract: 766,317. Electric selective signalling systems; magnetic sound recorders. STANDARD TELEPHONES & CABLES, Ltd. Feb. 19, 1954 [Feb. 27, 1953], No. 4966/54. Classes 40 (1) and 40 (2). [Also in Groups XL (b) and XL (c)] An electrical waveform having alternate positive and negative variations about a datum level is converted into corresponding variations having excursions in one direction only from the datum by applying the positive and negative portions to a first and second channel respectively which each comprise an integrating circuit, having a short time constant compared with the signal variations. The channels are inter-connected so that a variation of the input of one integrating circuit suppresses the output of the other. Figs. 1 and 2 show a circuit for reproducing the signals recorded on a drum which is of non-magnetic material having an outer coating of nickel, the recorded waveform having alternate positive and negative variations as shown in Fig. 3 (a). The waveform, Fig. 3 (c) produced at the reproduction head, is amplified in unit AMP to produce a waveform, Fig. 3 (d) and is applied to the phasesplitter tube VA1 so that waveforms as shown in Figs. 3 (e) and 3 (e<SP>1</SP>) are applied to rectifiers RE1 and RE1<SP>1</SP> via tubes VA2 and VA3 respectively. Whilst rectifier RE is conducting the associated capacitor C1 is charged, the circuit via rectifier RE2<SP>1</SP> allowing capacitor Cl<SP>1</SP> to discharge, the reverse action taking place when capacitor C1<SP>1</SP> charges. The voltages, Figs. 3 (g) and 3 (g<SP>1</SP>) produced across capacitors Cl and C1<SP>1</SP> respectively are then clipped in units CL1, CL1<SP>1</SP> differentiated in units DF, DF<SP>1</SP> and mixed in unit MIX so that a series of sharp positive pulses are produced, Fig. 3 (j), each of which corresponds to a trailing or leading edge of the original waveform of Fig. 3 (a). The time constants of the integrating network comprising rectifier RE1 and capacitor C1 and rectifier RE1<SP>1</SP> and capacitor C1<SP>1</SP> respectively are short compared with the minimum time duration of any positive or negative variation of the waveform of Fig. 3 (a). The time constant of capacitors C1 and C1<SP>1</SP> in shunt with rectifiers RE2 and RE2<SP>1</SP> respectively in their non-conductive state is large compared with the time interval between successive variations in the input waveform of Fig. 3 (a) so that spurious signals are suppressed. Specification 766,318 is referred to.
Patent GB-217951-A (GB)
Title: Improvements in condensers, resistances and like variable electrical devices
Filed: 1923-02-20
Abstract: 217,951. Dubilier, W. Feb. 20, 1923. Variable resistances; resistance coatings.- In variable electrical devices, such as resistances and condensers, of the kind in which the electrical characteristics are varied by moving a resilient member towards or away from a fixed member, the fixed member comprises a plate or strip 2, Fig. 1, fixed upon a base 1, or a resistance streak upon the base, and the movable member is a resilient plate or strip 3 overlying the strip 2, with a part 13 held in fixed position relatively to the strip 2 and through which the strips 2, 3 have initial contact, means being provided cooperating with the base 1 and with one or more free portions of the strip 3 to draw the strip 3 down towards the strip 2, or to release it therefrom, to vary the contact between the strips 2, 3 along a line extending from the part 13 in a plane perpendicular to the surface of the base 1. To form a variable grid-leak resistance, the strip 2 may be of paper or cardboard coated with Indian ink or blacklead, or a streak of resistance material may be arranged on the base 1, the resistance between terminals 7, 8 being progressively short-circuited by the bronze or other conducting strip 3. To form an electrostatic condenser, the strip 2, Fig. 4, is insulated from the strip 3, for instance by a sheet 15 of mica, and the strip 3 is fixed to the base 1 near the strip 2 as shown in Fig. 4. The operating means may comprise a nut 5 held against rotation by side grooves engaging the forked end of the strip 3 and moved up and down along a threaded spindle 4 rigidly fixed to, and rotated by, a knob 6 beneath the base 1, the strip 2 being fixed to the base 1 at its other end. The strip 2 may be curved convexly relatively to the strip 3 and supported on a curved insulating block on the base 1. In a modification, the arc-shaped resilient strip 3, Fig. 2, is held in contact with the fixed strip 2 at its centre and its free ends engage slidably with a plate 9 parallel to the base 1. The plate 9 is drawn towards the base to flatten the strip 3 by means of a knob 6 which engages and moves vertically a threaded spindle 4 passing freely through the base 1 and fixed to the plate 9.
Patent GB-677765-A (GB)
Title: Strip guiding and severing device for sewing machines
IPC: D05B35/06
Filed: 1951-03-02
Abstract: 677,765. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). March 2, 1951, No. 5083/51. Class 112. [Also in Group VIII] Cutting; folding devices; work-guides.-An attachment for guiding a strip of fabric to the stitching point is provided with a knife for severing the strip between the ends of the guide or between successive guides; means are provided for holding the cut end and feeding it up to the stitching point for a new operation. In the form shown, for use in applying a reinforcing strip to a seam being made between two parts of a garment, one of which is folded over at the edge, an inclined guide 32, 33, for leading in the strip and folding over its edges, is carried by a double bracket 37 beneath a baseplate 20 which fits in an opening in the worksupporting plate of the machine; an edge-guide 41 for one layer of the work is carried by a plate 44 adjustable in the line of feed on the plate 20, and a folder 42 for turning under the edge of the other work-piece is laterally adjustable on the plate 44. An inclined knife blade 50, secured to a carrier sliding across the strip guide 32, 33 in guides on the underside of the plate 20, works in a groove passing across the lower member of the strip guide to sever the strip when desired; the knife is actuated by a treadle or knee-operated connection 66 through a lever 65 and slide 69 mounted on the machine bed, the slide having a forked lug 73 to receive a lug 76 on a member extending from the knife-carrier, so that the attachment can be removed from the machine without any special operation to disconnect the knife-actuating mechanism. A spring detent is provided to give sufficient resistance to initial movement of the knife carrier to prevent accidental operation. The cut end of the strip is held and fed up to the stitching point for the start of a new seam by a resilient finger, with a toothed end, which presses on the strip and can be moved along the strip-guide by a lever 83 with handle 90; a finger-piece 91 is provided on the resilient finger for lifting it to facilitate insertion of a new strip.
Patent GB-566663-A (GB)
Title: Improvements in navigation-aiding course-indicating repeater compasses
IPC: G01C19/40
Filed: 1943-03-31
Abstract: 566,663. Compasses. NISBET, R. H., and SPERRY GYROSCOPE CO., Ltd. March 31, 1943, No. 5126. [Class 97 (ii)] A compass repeater of the kind described in Specification 562,049 comprises manual means, whereby a compass card and pointer are together moved or rotated to indicate the course upon which the aircraft is to fly and a signal receiving motor for operating the pointer independently of the compass card to indicate in sense and magnitude any divergence of the aircraft from the set course. The motor 11 is provided at one end with a trunnion 23 in bearing 9 and at the other end with posts 27 carrying a gear 29 secured to a boss 49 rotatable in a bearing 7 and having a flange constituting a compass card 51. A spindle is mounted for rotation in bearings in the motor casing and the gear 29, the spindle carrying a gear 41 in engagement with the gear 39 on the shaft 37 of the motor 11 and a gear 43 in engagement with a gear 45 mounted on a shaft 47 rotatable in the boss 49. The pointer 55 is frictionally mounted on the shaft 47. The course-setting means comprises a knob 35, shaft 33, and gear 31 in engagement with the motor gear 29, whereby the compass card is rotated to indicate the course-setting required and at the same time the pointer 55 is also similarly rotated through the gears 43, 41, 39, 45. If the pointer 55 is not correctly aligned with the lubber line 53 when the determined course is indicated on the compass card, the pointer may be brought into coincidence by means of a dog 69 pressed into engagement with apertures on the pointer and the pointer rotated against its frictional engagement with the pointer shaft 47. Divergence of the aircraft from the correct course will cause the motor shaft 37 to be rotated due to the signals received and through the gears 39, 41, 43, 45 will turn the pointer shaft 47 and consequently the pointer away from the lubber line in the sense and magnitude of such divergence.
Patent GB-402052-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B65B59/00
Filed: 1932-02-20
Abstract: 402,052. Wrapping chocolates &c. SAPAL SOC. ANON. DES PLIEUSES AUTOMATIQUES, 54, Avenue Dapples, Lausanne, Switzerland. Feb. 20, 1932, No. 5147. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 25, 1932]. [Class 94 (i).] A wrapping-machine is characterised by a conveying device, e.g. an endless chain 4, for the article to be wrapped, and a number of folding means for different modes of packing adapted to cooperate with the conveyor so that different modes of packing may selectively be carried out on the one machine by removing from the machine those folding mechanisms not required or throwing them out of gear. In one mode of packing, shown in Fig. 5, the chocolate &c. 25, on a wrapper 26, fed to the machine by a transversely reciprocating clip, is lowered by mechanism 27, 28 into the open jaws 9, 10 of a link on the intermittently moved conveyor chain 4. The jaw 10 is then released by a nosed lever 24 and moves under spring action to grip the partly wrapped article. A tucker 33, 34 folds in one upstanding portion of the wrapper and the other is folded over by a stationary bridge piece 35 during motion under the same. Side folding members 36, 38 and an electrically heated pressing element 39 then complete the package which is ejected transversely by a pusher on to a delivery channel. Other products, all of which are stated to be known per se, of different series of detachable or disconnectable folding members are shown, with the sequence of folding steps &c., in Figs. 7, 14 and 19, the latter form incorporating a securing label 66.
Patent GB-511520-A (GB)
Title: Improvements in and relating to fire-escape ladders
IPC: E06C5/38
Filed: 1938-02-18
Abstract: 511,520. Road-vehicle rest-bars and undercarriages. LEAN, C. (Humboldt-Deutzmotoren Akt.-Ges.). Feb. 18, 1938, No. 5178. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 19, 1938.] [Class 108 (ii)] [Also in Groups XXI and X] A vehicular fire-escape ladder of the kind having means for locking the springing of the vehicle inoperative when the ladder is in use, is provided with a safety device which prevents actuation of the ladder gear until the spring- locking device has been engaged. Preferably, a second safety device independently prevents actuation of the ladder gear until frame supports of the vehicle have been lowered. As shown, a hook 6 which locks the vehicle frame 1 to the axle 2 is adapted to be engaged by means of a hand-lever 11, or automatically when a hosecarriage 13 is unlimbered, acting through linkage 9, 8, 7. A stop member 24 connected to the link 8 by links 22, 23 is mounted in the fixed part 3 of the turntable and lies in the path of movement of a rod 25 which is connected to the starting handle 18 of the ladder gear, so that the latter cannot be operated until the hook 6 has engaged the axle 2. A similar stop member 35 is connected by links 36, 37 to the lever 16 used for lowering the frame supports 15. As shown a single lever controls all the supports. If the supports are separately controlled, each is connected to a separate stop member controlling the rod 25. Specification 505,058 is referred to.
Patent GB-548318-A (GB)
Title: Improvements in or relating to apparatus for measuring dimensions
IPC: G01B5/08
Filed: 1941-04-23
Abstract: 548,318. Linear-dimension gauges. ENGLISH STEEL CORPORATION, Ltd., and CLEGHORN, G. S. April 23, 1941, No. 5218. [Class 106 (ii)] Apparatus for measuring changes in the internal dimensions of vessels under varying pressures therein comprises a frame or body 10 carrying relatively movable gauge heads 15, 16 tending to move apart, a support 19 for the frame enabling the latter to be located at the required dimension and recording means 28, 29. The frame 10 comprises a cylinder closed by end plates 11, 12 supported by an adjustably fixed gauge head 15 and two feet 19, the other gauge head 16 being adjustable by a screwed sleeve 20 and movable, both heads being carried by webs 13, 14 extending from the cover 11. The head 16 is carried by a slide 21 formed as a rack gearing with a pinion 22 on a spindle 23 centred between the webs 13, 14 and carrying a gear wheel 24 meshing with a pinion 25 on a spindle 26 also carried on centres between the webs this spindle carrying a recording arm 27 apertured to clear the spindle 23 and carrying a scriber 28 working over a second sheet 29 on a carrier 30 mounted on the rod 31 of a piston 32 working in a cylinder 33 formed within the cylinder 10. The cylinder 33 and chamber 35 of cylinder 10 are filled with compressible liquid. The pressure in the vessel 17 acts through the port 34 on the piston 32. The weight of the record arm tends to move the gauge head 16 into engagement with the internal surface of the vessel 17 and a line 36 is traced on the chart recording the change in dimension against the pressure.
Patent GB-1078544-A (GB)
Title: Circuit arrangement for lighting bulbs of toy vehicles driven by an electric motor
IPC: A63H17/28
Filed: 1966-02-07
Abstract: 1,078,544. Toy vehicles. W. BARTHEL. Feb. 7, 1966 [Feb. 12, 1965], No. 5258/66. Heading A6S. [Also in Division H2] An arrangement for supplying lamps LR at constant voltage on say a model train wherein the motor is supplied with a variable voltage, comprises at least one zener diode Z1 across which the lamps are connected in series with the motor M. Where two sets of lamps are required to be illuminated for forward and reverse running, the sets LR, LV are each connected across one of a pair of reverse series connected diodes Z1 Z2. The nominal voltage of the lamps is arranged to be lower than the starting voltage of the motor so that when the train is stationary the lamps may be illuminated by this lower voltage applied to the rails.
Patent GB-545989-A (GB)
Title: Improvements relating to wind-screen wipers
IPC: B60S1/34
Filed: 1940-12-17
Abstract: 545,989. Windscreen wipers. ACROTORQUE CO. Dec. 17, 1940, No. 5277/42. Convention date, Oct. 5 Divided out of 545,916. [Class 138 (i)] In a windscreen wiper of the kind in which the wiper arm is attached to a shaft which is oscillated by power means to swing the wiper in an arcuate path across the windscreen, the blade 23 is pivoted to the wiper arm about an axis 24 perpendicular to the surface 22 to be wiped, and an auxiliary arm 27, pivoted to a fixed part of the windscreen frame at a point 28 displaced from the pivotal axis of the wiper arm is connected to the wiper blade by a sliding connection 26, and is pressed by a spring 30 so that it presses the blade against the surface to be wiped.