baber/WOPTO huggingface dataset:
Patent GB-582170-A (GB)
Title: Improvements in the operation and control of cathode ray indicators
IPC: G01S1/02
Filed: 1942-03-24
Abstract: 582,170. Radiolocation. COCKCROFT, J. D., and POLLARD, P.-E. March 24, 1942, No. 3927. [Class 40 (v)] [Also in Group XXXVI (Appx.)] Two or more cathode-ray tubes T, T1, Fig. 3, indicating different aspects of the same periodically recurring event, e.g. slant-range and bearing of the target in a radiolocation system, have their deflecting plates biassed from ganged potentiometers R1, BR so that when the trace is centred on one tube, the corresponding trace is centred on the other tube. For clear focusing it is advisable to earth the slider S, this is virtually effected by earthing the slider S1 on another ganged potentiometer RG so as to avoid earth currents flowing through R1. Three cathode-ray tubes T, T1, T2, Fig. 5, for range, azimuth and elevation may be biassed from a common potentiometer, the virtual earth being obtained from the mid-point of a series circuit formed of constant-current pentode VR and a cathode follower VCF. Each potentiometer is subdivided exponentially so that equal incremental movements of the slider correspond to equal increments of range. This exponential subdivision compensates for the exponential character of the time base circuits employed. Initial adjustment of a potentiometer is made by using a four-position switch SW, Fig. 4 (not shown), which facilitates making adjustment of the cross wires when the spot is at the electrical zero ; for the voltage drop across the valve in the time base circuit ; and for the time-delay in the transmission of a signal through the receiver. The potentiometer can be in two sections, both immersed in an oil tank P, Fig. 6. On rotation of a handle H, the shaft D2 drives the first section in intervals of 50 yards over a range from 2,000 yards to 14,000 yards, whereupon the slotted plate D5 frees a slotted plate D6 and shaft C3 to drive the second section in intervals of 250 yards up to 30,000 yards. The plate D5 is locked by movement of the plate D6.
Patent GB-787883-A (GB)
Title: Improvements in and relating to the purification of vinyl chloride
IPC: C07C17/383
Filed: 1956-02-08
Abstract: 787,883. Cold separation of gas mixtures. KNAPSACK-GRIESHEIM AKT.-GES. Feb. 8, 1956 [Feb. 9, 1955], No. 3978/56. Class 8(2). Removal of inert gases; acetylene and highly chlorinated Cz derivatives from vinyl chloride obtained from acetylene and hydrogen chloride is effected by feeding the mixture leaving a compressor 2 at between 3 and 10 atmospheres pressure at between 15‹C. and 90‹C. through a duct 5 to a rectification column 6 having a condenser 8 and a vaporizer 7, passing uncondensed gaseous mixture containing inert gas and acetylene through a duct 12 to a washing column 13 supplied through a duct 14 with a non-polymerizing solvent having a higher boiling point than vinyl chloride, e.g., dichlorethane ; the inert gases leaving the head of column 13 through a duct 15, and impure vinyl chloride containing solid polymerization products leaving the base of the rectification column 6 through a duct 18. Vinyl chloride gas is also transferred from the base of column 6 through a duct 22 to a second rectification column 24 having a vaporizer 25 and a condenser 26 providing reflux through a duct 27 having a valued outlet 29 for pure liquid vinyl chloride. Liquid vinyl chloride containing dichlorethane is passed from the base of column 24 through a duct 36 to a third rectification column 37 having a vaporizer 38 and a condenser 39 and liquid from the base of this column rich in dichlorethane is pumped into the duct 14 to provide the washing liquid for column 13. Impure vinyl chloride gas leaving the condenser 39 of column 37 is returned through a duct 42 to the compressor inlet where it is joined by gas leaving a purifier 20 supplied from the base of the first rectification column 6.
Patent GB-102554-A (GB)
Title: Improvements in and relating to Otter Boards and the like for Steam Trawling Apparatus.
Inventor: SHIRATO TSUNEJIRO
IPC: A01K73/045
Filed: 1916-03-18
Abstract: 102,554. Shirato, T. March 18, 1916. Trawling-gear.-An otter board 9 is formed of canvas or other light material supported by stretcher rods 10 connected by ribs 11, and is secured at one end to the net 1, and at the other by guy-ropes 8 to the towing-warp 6, which is attached to the head and foot ropes of the net. The securing-links 7 engage the ends of ribs 11. A weight 12 steadies the device.
Patent GB-548250-A (GB)
Title: Improvements in or relating to shoe upper conforming machines
IPC: A43D13/00
Filed: 1941-03-26
Abstract: 548,250. Lasting machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). March 26, 1941. No. 4051. [Class 17 (i)] A heel seat lasting machine of the kind described in Specification 473,197 is provided with a wiper for the extreme heel end rectilinearly movable lengthwise of the machine, an auxiliary hold-down member moving with this wiper, a last-pin support designed to avoid the pressure of the heel-band tipping the last unduly on jacking the shoe, and an alternative stop for the work-changing position of the jack. The pair of heel wipers described in the prior Specification are cut away at the extreme heel end, and an additional heel end wiper 18 is provided carried by a block 70 pivoted at 72 to the slide which gives the wipers their forward movement, an adjusting screw 76 co-operating with a spring 74 to determine the vertical position of this wiper. An additional hold-down 88 engages the upper margin in advance of this wiper, and moves therewith, the main hold-down 10 being provided with a recess to allow of this movement. To prevent depression of the toe end of the last when the shoe is jacked, the last pin is inclined to engage the hole in the last throughout its length, and its support is self-adjusting, under the pressure of the main holddown about a centre y. The thrust of the heel-band passes approximately through this centre, and causes a T-shaped curved guide along which the support can slide to bind, and resist tip of the last. The last is also supported by a plate 120 loose on the pin and extending farther forwardly of the pin than rearwardly. The toe-rest 168 is yieldable against a spring 162, and may be adjusted, preferably just clear of the work, by a rotatable knob 194. The extreme forward position of the jack is determined by a pin 198 engaging a stop 200 in the fore and aft jack-swinging mechanism described in the prior Specification. In cases where this extent of movement is unnecessary, a pivoted catch 206 is adapted to co-operate with a stop 214. The catch may be held out of action, when the farther travel is necessary, by a latch 216. Specification 473,129 also is referred to.
Patent GB-859229-A (GB)
Title: Improvements in adjustable extendible bands
IPC: A44C5/08
Filed: 1959-02-05
Abstract: 859,229. Bracelets. HENRY, R. Feb. 5, 1959 [Feb. 26, 1958], No. 4096/59. Class 43 An adjustable extending band comprises a series of units arranged transversely of the length of the band, each unit comprising a boxshaped link I open at its ends and bottom and having the bottom closed by a removable cover 4, a frameshaped slide link 2 and at least one pair of arcuate spring blades 3 contacting at their apex, the ends of the springs contacting a transverse wall of the link 1 and bar 2a of the link 2 respectively. The metal cover 4 is dished at the ends to snap engage over the ends 2b of the link 2. Alternatively the cover may have a resilient lug along each side with an end catch which engages. in a slot in each side wall of the link 1. The cover engages inwardly bent flanges 1b on the link 1.
Patent GB-567755-A (GB)
Title: Improvements relating to retractable undercarriages for aircraft
IPC: F21V21/092
Filed: 1943-03-12
Abstract: 567,755. Aircraft retractable undercarriages. FLURSCHEIM, C. H., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 12, 1943, No. 4103. [Class 4] A retractable undercarriage, supported in its retracted position by a rotatable latch, is retracted and extended by a shaft driven through a coupling allowing a limited relative angular motion by a second shaft rotatable by an electromotor, initial movement of the driving shaft for effecting or assisting in the extension of the undercarriage causing rotation of the latch to disengage it from the undercarriage. The device is shown applied to the chain gear described in Specification 567,750, acting upon a toggle bracing strut 1 pivoted' to the airframe at 1d. Two such struts on opposite sides of the machine are rigidly connected together by a tube 2 and each has a pair of lugs supporting a pin 5 which is engaged, when in the retracted position, by a latch 9 pivoted at 8 to a member 7 secured to the airframe. The latch has a lateral extension 9a connected by a pin 11 to a link 10 urged by a spring 12 to move the latch into its locking position. The sprocket of the chain gear within a box 17a is mounted on a tubular shaft 15 upon which the box 17a also is pivoted, and a shaft 16 supported by the member 7 and having an enlarged portion 16a, Fig. 5, carries a key 22 which extends through slots in the shaft 15 to afford a limited lost-angular motion before transmitting the drive. The shaft 16 is connected to the electromotor and before the drive is taken up to lower the undercarriage the key 22 encounters the extension 9a and moves the latch out of engagement with the pin 5. A detent 23 engages the upper surface of the pin 5 when the undercarriage is retracted. To prevent the shaft 15 from overrunning the shaft 16, the latter has an extension 16b carrying a series of plates 24 interleaved with plates 25 keyed to the shaft 15 and pressed together by a spring 26. Contact plungers 30'a, engaged by the lugs which support the pin 5, 'cut out the motor as the strut 1 reaches its retracted position and similar switches actuated by movement of the box 17a may out out the motor as the undercarriage reaches its extended position. The chain gear moves within the tubular parts 17d, 17e, the former having a slot through which a pin extends laterally from the chain to a pin 20 on the strut 1.
Patent GB-398400-A (GB)
Title: A wireless receiving apparatus
IPC: H04B1/10
Filed: 1933-02-11
Abstract: 398,400. Wireless receiving-apparatus. LOEWE, S., 10, Wiesenweg, Steglitz, Berlin. Feb. 11, 1933, No. 4229. Convention date, Feb. 13, 1932. [Class 40 (v).] In a mains-driven set, that particular form of disturbance due to the modulation of the incoming signal-energy by the frequency of the mains supply is prevented by arranging the axes of the high-frequency coils 1, 6, 7 and the iron-cored coils of the supply transformer 5 (or the smoothing-chokes), at rightangles to each other and, in addition, interposing a single screening-plate 8 between the high and low frequency components. Specification 319,491, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-289421-A (GB)
Title: Improvements in or relating to heating elements for electric radiators
IPC: H05B3/06
Filed: 1928-02-10
Abstract: 289,421. Frister Akt.-Ges., R. April 27, 1927, [Convention date]. Electric radiators. - A heating element b for a radiator employing a reflector is provided with a protective basket or cage k which does not appreciably prevent radiation of heat to the reflector and is secured to the element by rivets, screws or the like, so that it cannot be removed therefrom without the aid of tools. The cake is formed of wire loops and provided with a ring d of strip metal. Metal strips c are secured by rivets f to the heating element and the ring. A star-shaped cap k<1> of mica or glass is secured in position by a second ring d<1>. The contact pins a of the heating element do not extend materially beyond the end of the cage.
Patent GB-1093528-A (GB)
Title: Improvements in or relating to hurleys
IPC: A63B59/12
Filed: 1966-01-31
Abstract: A hurley consists of two separate portions joined securely together, one portion comprising a length of timber shaped to form a shaft and rear portion of the toe of the hurley and the other portion comprising a separate piece of timber shaped to form the front portion of the toe of the hurley, and one or both sides of the toe portion are provided with a shaped facing of hard and tough material secured thereto, said facing having a depth of approximately 1/8 th to 1/3 rd the thickness of the toe portion.  Specified materials from which the facing may be made are fibreglass, a plastics material or wood.  When the facing is made of wood the grain direction of the shaped facing is different from the grain direction in the hurley. The grain directions in the two separate portions of the hurley may be different.
Patent GB-275919-A (GB)
Title: Improvements in sifting machines
IPC: B07B1/38
Filed: 1926-02-15
Abstract: 275,919. Pover, G. H., and Lucas, W. T. Feb. 15, 1926. Sieves with compound motion.-A machine for sifting potters' slip &c. comprises a trough g carrying an inclined lawn or a series of inclined lawns h, h<1>, h<2> arranged in cascade. The trough is vibrated by an eccentric or a short-throw crank d at the lower end of the trough, and is suspended at its upper end by plate springs p from a fixed frame a. To avoid leakage, the, lawns are pressed together and on ledges g<3> of the trough g by wooden bars j of the form shown in Fig. 5, screws k holding the bars to the trough sides. The sifted slip passes to a box u beneath the lawns, the refuse passing off at the lower end of the trough. When one lawn only is used, the surface is stepped to break up the coarser material, and, in a modified construction, two troughs g with lawns in cascade are arranged oneabove the other.
Patent GB-578813-A (GB)
Title: An ironing board and cupboard construction
IPC: D06F81/06
Filed: 1944-03-09
Abstract: 578,813. Ironing-boards. BARRASS, A. J. E. March 9, 1944, No. 4397. [Class 138 (ii)] [Also in Group XIV] A built-in wall cabinet has a lower cupboard portion closed-off by a door 8, and an upper portion closed-off by an ironing-board 5 which can be swung down to an operative horizontal position. The pivots of the ironing-board are on a block 5A secured to its inner end and this block engages under a transverse frame member 7 to hold it in its horizontal position. When closed, the ironing-board lies flush with the frame members and with its tapered end between fillets 1A, 2A on the frame.
Patent GB-824247-A (GB)
Title: Improvements relating to the surfacing of floors, decks, staircase treads and the like
Inventor: ROBIN PETER HUTCHINSON
IPC: E04D5/10
Filed: 1955-02-15
Abstract: 824,247. Non-slip surfaces for floors &c. SEMTEX Ltd. Jan. 17, 1956 [Feb. 15, 1955], No. 4397/55. Class 20(4) [Also in Group VIII] A method of surfacing a floor, deck, staircase tread or the like consists in attaching thereto a sheet material comprising a base sheet to one side of which is adhered a coating of finely divided ligneous material having a density of at least 0.3 grams per cubic centimetre, the material being attached with its coated side uppermost. The exposed surface of the particles of ligneous material e.g. sawdust, wood chips, nutshells or mixtures thereof, may be either free from adhesive or covered with a further coating of adhesive. The base sheet which may be a woven or non-woven sheet e.g. textile fabric such as cotton duck, may be sized e.g. with plasticized polyvinyl acetate, prior to the application of the adhesive composition which may be a furane resin, or derived from formaldehyde and a substance condensable therewith e.g. phenol, cresol, urea, and may be applied as a melt, solution or emulsion. The back of the sheet material may be coated with an adhesive e.g. natural or synthetic rubber, polyisobutylene, which may be protected prior to use by a sheet or film e.g. of polyethylene, or the adhesive may be applied to the back of the sheet or flooring, when used. A narrow strip of sealing composition e.g. rubber or resin in an organic solvent, may be provided at the edges of the sheet material after laying to prevent the ingress of water or dust under the sheet material. Specification 564,060 [Group III] is referred to.
Patent GB-260148-A (GB)
Title: Improvements in and relating to electromagnetic apparatus for the interconversion ofelectrical and mechanical oscillations
IPC: H04R1/16
Filed: 1926-02-16
Abstract: 260,148. British Thomson-Houston Co., Ltd., (Assignees of Kellogg, E. W.). Dec. 1, 1925, [Convention date]. Gramophone pick-ups; magnetic instruments.- Apparatus having a coil in the flux path of a magnet is provided with an armature having a rigid shaft mounted in resilient bearings and arranged so that its rocking axis is at the centre of mass of the armature and shaft. As applied for reproducing sound from records, the armature 11, Figs. 3 and 4, extends through a coil 12 arranged between the U-shaped poles 10 of a magnet 7 secured by screws 8 to a back plate 5 and enclosed by a cover plate 6. The shaft 17 of the armature is of square section, and is covered with rubber sleeves 18 and mounted between opposing V-shaped recesses in the pole-pieces, or is engaged by a V-recess in a spring to provide the necessary resiliency and damping. Further damping may be secured by rubber blocks 21 arranged in grooves in the pole-pieces adjacent the upper end of the armature. The coil wires are connected to terminals on an insulating block 14 from which leads pass through the tubular extension of the back plate to amplifying devices and a loudspeaker.
Patent GB-510194-A (GB)
Title: Improvements in or relating to cast metal pipe joints
IPC: F16L13/12
Filed: 1938-02-12
Abstract: 510,194. Casting pipe joints. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T.,. BARRY, W. C., and TUNSTALL, H. A. Feb. 12, 1938. Nos. 446.6 and 20783. [Class 83 (i)] Moulds; mould materials.-- A mould for use in casting a metal joint between two tubular members is made of natural or artificial rubber, such as neoprene, cotton or other fabric impregnated with oil, tallow &c. at least as regards its end parts which make joint with said members. A mould for joining a cable sheath 2 to a lead joint sleeve 1 may include a rubber muff 4 secured by wire 8 over a split lead ring 3. The outer member 10 may be of, rubber or of metal with packing 11 as described in Specification 449,963. A mould for two sheaths 15, 16, Fig. 2, may comprise just over one complete turn of rubber strip 18 secured by wire and an outer member 22 consisting of an aluminium or other metal strip with spaced lugs 24 at each end adapted to be drawn together by bolts 23 and thus closed about windings 21 of rubber tape. A part of the windings, not in contact with metal, may consist of lead tape. A pouring gate 25 is formed between the ends of the strip. In a modification the strip 22 may be of rubber or have a channel section or both and the edges are clamped about the windings 21 by worm-drive clips. Rubber channel section may however be clamped direct on to the tubular members. A mould for joining a cylindrical sleeve 31, Fig. 6, to a cable sheath 30 may comprise a rubber ring 32 and a moulded rubber muff 40, with a pouring. gate 44 and drain pipe for use in heating the mould &c. by pouring hot tallow or other flux through, the whole being secured by wire 8 and a worm-drive clip 34. The muff may be so arranged that the end of the sleeve is embedded in the cast metal. When desired to break the joint the muff may be slid to the right along the cable and the metal be melted. In a modification, a second ring 32 and clip 34 are used instead of the muff a hole being cut in the sleeve 32 between the rings for the introduction of the flux and molten metal. A drain pipe 37 may be formed or inserted in the outer ring. After the flux has heated the parts the drain is closed and the metal poured in, the displaced flux overflowing. For electrically bonding a number of cables sheaths 46, Fig. 8, two rubber discs 47 with holes 48 corresponding to said sheaths and slits 49, 50 to permit assembly thereon spaced apart as shown in Figs. 7 and 8. These discs are then enclosed in a metal member 22 secured by clips 53.
Patent GB-628316-A (GB)
Title: Improvements in rag-bolts
IPC: E05B9/06
Filed: 1945-02-22
Abstract: 628,316. Nuts ; wall plugs. ABEL, W. Feb. 22, 1945, No. 4468. Convention date, Jan. 24, 1944. [Class 89 (i)] Nuts, in sleeve form adapted for use as wall &c. plugs, have resilient tongues engaging the threads of the bolt permitting rapid assembly by axial pressure. The threads 4, preferably of buttress type, are formed in a split collet 3 bevel closed by a spring that forces the collet into a seating formed by a constriction 2 in the main sleeve. The Specification as open to inspection under Sect. 91 describes other constructions. In one form discs having a number of inclined spring tongues 4, Fig. 1 (Cancelled), are assembled with spacing washers 3 in an enlargement 2 of the plug 1 and secured by flanging the end. The ends of the tongues are bevelled for engagement with a buttress thread. The discs 12 may be secured against the end of the plug by a screw cap 9, Fig. 4 (Cancelled), and a single disc only may be used. An arched cross member 15 resting in slots 14 in the plug may contact with the end of the bolt which causes the ends of the member to project into the wall of the hole in which the plug is inserted. The tongues may be formed by cross slots in the disc, or may be punched from the wall of the plug ; additional tongues punched outwards serving to anchor the plug in the hole. In a further form the nut may be formed by a series of staple like members of spring wire inserted through helically arranged holes in the sleeve. An inner sleeve 18, Fig. 6 (Cancelled), may clamp discs 12 against an internal flange 10 formed on the sleeve 1. This subject-matter does not appear in the Specification as accepted.