baber/WOPTO huggingface dataset:
Patent GB-815461-A (GB)
Title: Rear discharge loaders
Inventor: HARROWELL DOUGLAS WILLIAM JAME
IPC: E02F3/342
Filed: 1954-06-03
Abstract: 815,461. Shovelling machines. BRAY CONSTRUCTION EQUIPMENT Ltd., [formerly BRAY & CO. Ltd., W. E.]. Sept. 2, 1955 [June 3, 1954, Sept. 16, 1954], Nos. 16518/54 and 26913/54. Class 68(1) [Also in Group XXX] Cushioning means are incorporated within the cylinders of fluid-operated jacks that raise the arms of an overthrow shovelling machine to absorb the shock on the hydraulic system due to the change of load on the arms as they pass the vertical to the discharge position. The means in one form consists of a skirt on the piston 7 of each jack, the skirt, towards the end of the travel of the piston as the associated arm passes the vertical, co-operating with a skirt 13 on the cylinder head of the jack to form a cushioning chamber. Bleed passages may extend through the piston skirt. In a second form a collar having a limited sliding movement on the piston rod has rods projecting through the piston. The collar abuts the cylinder ends before the piston reaches them to cause a cushioning effect.
Patent GB-1370187-A (GB)
Title: Geophysical prospecting apparatus
IPC: G01V3/165
Filed: 1972-04-11
Abstract: 1370187 Geophysical surveying BARRINGER RESEARCH Ltd 10 April 1973 [11 April 1972] 16546/72 Heading G1N The invention relates particularly to electromagnetic aerial surveying apparatus generating a pulsed primary field, similar to that described in U.S. Specification 3105934. In the present case the signals are stored temporarily and MATCHED e.g. in a computer WITH REFERENCE WAVEFORMS. In the preferred arrangement an A/D converter feeds the detected signals to a digital computer, which correlates with reference signals by subtracting reference waveforms from input and determining optimum fit by sum of least squares of ordinates of residual waveform. Preferably the whole of the detected signal is used and the primary waveform subtracted first, and next the overburden reference wave. Suggested Modifications. The apparatus might be on a land vehicle and might use:- an analogue computer; plurality of frequencies instead of pulsed waveform; only that part of the signal in the gaps between the pulses; a magnetometer instead of a sensor coil; two or three axial sensors. It may:- process signal on board; transmit to ground station; store signal digitally or on F.M. modulated tape; synthesize reference waves from single turn loops or record from known terrain.
Patent GB-222202-A (GB)
Title: Improvements in unidirectional driving devices
IPC: F16D41/20
Filed: 1923-06-26
Abstract: 222,202. Constantinesco, G. June 26, 1923. Clutches, ratchet. - A one way driving-device which may be a clutch or friction pawl comprises one or more coils of sheet metal c in pressure contact one with the other substantially filling the space between coaxial cylindrical driving and driven members a, h. One end of each coil is attached to the driving-member a as at l, m, while the other end bears frictionally as at g against the driven member h. The coefficient of friction between adjacent coils is less than that between the coil ends and the driven member. Antifriction balls k, Fig. 2, may be arranged between the coils. The coils preferably act in compression, in which case they are secured to the inner member, but they may act in tension.
Patent GB-666187-A (GB)
Title: Conveying means comprising several shaker conveyor lengths arranged in succession
IPC: B65G27/00
Filed: 1949-06-22
Abstract: 666,187. Jigging conveyers. DRIESEN, J., and JERICHO, K. June 22, 1949. No. 16557/49. Class 78 (i). A shaker conveyer in which the conveying surface comprises a plurality of separate conveying shoots, arranged end to end, and in which each shoot comprises a plurality of interconnected end to end channel plates, is characterised by the fact that the supporting structure consists of end to end sections which are fixed together and extend beneath the whole length of the conveying surface, and each delivery point for the conveyed material from shoot to shoot of the conveying surface is situated at a point intermediate the ends of a section. Figs. 1, 2. The sections of the supporting structure comprise angle irons 9 joined at their ends by transverse U-shaped members 5. Supports 4 fixed to the U-shaped members support rails 7 on which a coal cutting machine travels when used in coal mining. The sections are joined together at 6, the rails 7 being joined by rubber strips 8, to accommodate slight swinging in the horizontal plane. The corresponding shoot sections are joined at 13 to one another. The point of transfer from one shoot length to the next is at 14 so that in this section there are two shoot sections 12<SP>1</SP>, 12<SP>11</SP> which are shorter than normal, section 12<SP>11</SP> feeding to section 12<SP>1</SP>. The shoot sections run, by means of angle irons 11 secured along the sides, on balls running on single irons 9. Section 12<SP>11</SP> is supported above section 12<SP>1</SP> by supporting the corresponding angle irons 9 of the supporting structure at different heights. Specification 662, 193 is referred to.
Patent GB-203795-A (GB)
Title: Improvements in or relating to the casting and composing of single types
IPC: B41B7/04
Filed: 1922-06-15
Abstract: 203,795. Lanston Monotype Corporation, Ltd., Pierpont, F. H., and Tipton, J. E. June 15, 1922. Single-type composing and casting machines; matrices.-The die-case of machines of the kind described in Specification 8633/99 is adapted to enable the machine, to cast from matrices of abnormal dimensions without the use of supplementary positioning-mechanism or reduction in the number of positions available for justification setting. The opening in the die-case is made slightly larger than usual, and the matrices are conveniently of two sizes some being twice, and others four times, the size of the normal matrices. In one arrangement, Fig. 2, the matrices of four horizontal rows are of twice the normal size, with the exception of the end matrix B of each row, which is four times the normal size. The remaining rows are occupied by matrices of the larger size. The centring-cavities of the smaller matrices are central of the matrices in both directions, and those of the larger matrices are central in one direction only. Alternate gauge-pins of the series X are used for positioning the diecase in one direction, and all the gauge-pins of the series Y are used for positioning the die-case in the other direction. All of the gauge-pins X are used for justification, the pump being rendered inoperative when the position of the diecase does not correspond to a centring-cavity of a matrix. In a modification, Fig. 4, some of the matrices in the horizontal rows are staggered, and all of the gauge-pins X are employed for positioning the die-case. The supporting-rods pass through central holes in the matrices forming the main rows and through side grooves in the staggered matrices. Specifications 4726/05, 13209/09, 20554/09, 7979/12, 7980/12, and 130,961 also are referred to.
Patent GB-425082-A (GB)
Title: Improvements in or relating to sanitary traps
IPC: E03C1/284
Filed: 1934-06-04
Abstract: 425,082. Sanitary traps. LOMAS, P. V., 101, Elspeth Road, North Side, Clapham Common, London. June 4, 1934, No. 16649. [Class 33] An S-trap is formed with an opening in the bottom or side of its lower bend which is adapted to be closed by a cover C, Fig. 5, and washer D, the said cover being secured in place by a spring strip B engaging the cover and the upper surface of the bend. The cover may be convex, of brass, and formed with a sharp edge to bite into the washer which may be of graphited rubber. In one form, Fig. 5, the free ends of the spring B are drawn together by a bolt and fly-nut ; in another form, Fig. 6, the ends of the spring B overlap beneath the cover and have aligned apertures through which pass a screwed stud F. In other forms the strip may not extend completely around the bend and the cover may be riveted or otherwise secured thereto.
Patent GB-804614-A (GB)
Title: Switching apparatus for the automatic electric control of the feed mechanisms of a fancy doubler
IPC: H01H43/06
Filed: 1956-05-30
Abstract: 804,614. Photo-electric impulse generators. BERLINER MASCHINENBAU A.G. VORM. L. SCHWARTZKOPFF. May 30,1956 [June 6, 1955], No. 16705/56. Class 40 (3). [Also in Groups IX and XXXVII] A switching device for the automatic control of the feed mechanism of a fancy doubler has a rotary control member with a number of adjustable parts and an electric switch, whereby each switching combination can be adjusted without any changing of parts, the switch having an oscillating to-and-fro motion imparted to it in the direction of motion of the control member. .In the photo-electric embodiment (see Figs. 1 and 2) adjustable diaphragms 4 in rotating hollow cylinder 1 can be opened, see for example a, b, in the path of light from lamp 7 through slotted screen 8 to photo-cell 10. Member 6 supports the lamp, screen and photo-cell casing 9 and can be oscillated about cylinder driving shaft 3 by eccentric cam 13 and spring 15. In the other embodiment (see Group XXXVII) a micro-switch is operated mechanically by a cylinder carrying adjustable tongues. Several devices may be mounted on one shaft.
Patent GB-1147632-A (GB)
Title: Improvements relating to the production of crimped nylon fibres
Inventor: CLIMIE IAN ERNEST
IPC: D02J1/22
Filed: 1965-04-21
Abstract: 1,147,632. Crimped nylon fibres. COURTAULDS Ltd. 20 July, 1966 [21 April, 1965], No.  16712/65. Heading B5B. Crimped nylon fibres are made by forming an undrawn nylon fibre, drawing it while it is cooled to a temperature not greater than minus 20‹ C. and allowing the fibres so drawn to relax whereby crimp is automatically developed therein. The fibre is suitably drawn while it is in contact with solid carbon dioxide, or in contact with a metal or ceramic surface which is cooled by solid carbon dioxide, e.g. a metal plate or snubbing pin. The fibre may be pre-tensioned before drying. Additionally, the supply package of yarn may itself be cooled to a low temperature prior to drawing. For nylon 6 fibres in contact with solid carbon dioxide at about minus 50‹ C. to minus 70‹ C., drawing to give an increase in length of from 100 to 300% may be used. Cooling by other means e.g. liquid air or liquid nitrogen may also be used as may an electrical Peltier cooling element. In an example, a bundle of nylon 6 fibres is pre-tensioned and then drawn to a draw ratio of 2.5: 1 while passing over a cold plate consisting of a metal box filled with solid carbon dioxide and having a recess running vertically along the face through which the fibres are passed. Fibres from the second draw roller were collected on a bobbin. When the tension was released filaments immediately assumed a helical crimp. A similar type of fibre was obtained using a draw ratio of 2À75: 1.
Patent GB-594846-A (GB)
Title: Improved apparatus for locating faults in electric cable systems
IPC: G01R31/08
Filed: 1945-07-02
Abstract: 594,846. Detecting, indicating, and locating faults ; locating conductors. MIDLAND ELECTRIC CORPORATION FOR POWER DISTRIBUTION, Ltd., ARKINSTALL, L., and YORK, R. A. July 2, 1945, No. 16797. [Class 37] In apparatus for locating cable faults by the induction method, a selective portable amplifier tuned to the frequency of the test current injected into the faulty cable and comprising at least three valve stages is connected between the search coil and the indicator. As shown, an adjustable fraction of the E.M.F. induced in a search coil 1 tuned to a test frequency of preferably 1000 c.p.s. is applied to the control grid of a pentode V1, the anode circuit of which includes a parallel tuned impedance L1, C4. The voltage developed across L1, C4 amplified by successive pentodes V2, V3 is applied through a transformer T to operate headphones inserted in the secondary of transformer T in place of a resistance R9 by a jack switch J. Selectivity is adjusted by a variable resistance R4 which controls the extent of feed-back in an aperiodic feed-track circuit L2, R4, C5 in the anode circuit of pentode V2. The apparatus includes ganged switches S1 &c. inserted in the appropriate circuits and each having in addition to on/off control a third position whereby the apparatus may be operated as a straight receiver for the location of cables supplying current at normal mains frequency.
Patent GB-457865-A (GB)
Title: Improvements relating to the distant control of door-locks or latches and other similar fastenings
IPC: E05B47/06
Filed: 1935-06-12
Abstract: 457,865. Distant control of locks. DICK, H. P., Correnden, Tonbridge, Kent. June 12, 1935, No. 16909. [Class 44] A door lock &c. controlled from a distance by power means comprises a member pivoted about a fixed axis and having a bolt secured thereto on one side of the pivot and operating means secured upon the opposite side of the pivot and disposed entirely upon that side of the pivot remote from the bolt to maintain the parts in static balance. A T-piece e carries two armatures f, f<1> attracted by the excitation of one or other of two electromagnets g, g<1> to move a bolt d out of or into engagement with a staple b. A pivoted gravity catch i which normally blocks the bolt d has an armature i<1> attracted to release the catch when the current is switched on. The T-piece and parts carried by it are either statically balanced or biassed to the released position by a weight h or by a spring or by appropriate distribution of the weights of the parts. To enable the lock to be released by hand, a handle k is connected to a lever l coupled to two sliding rods m, m<1>. The rod m<1> carries a cam n engaging a part n<1> on the T-piece e and prevents the rod from moving until the rod m has moved the gravity catch i. A spring o returns the rod m to normal position. Means may be provided for breaking the circuit when the door is open.
Patent GB-1110691-A (GB)
Title: A method of manufacturing permeable plastic leatherette
IPC: D06N3/02
Filed: 1965-04-22
Abstract: A composition suitable for use in the treatment of non-woven stitch-bonded fabrics in the production of permeable plastic leatherette comprises a paste having a viscosity of 15,000-40,000 centipoise and a dry solids content of 20-35% by weight, the paste containing intermiscible solutions or dispersions of one or more synthetic resins and one or more cellulose derivatives being organic emulsoids having the function of thickening agents, the emulsoids constituting 40-50% by weight of the synthetic resins contained in the paste.  Suitable synthetic resins which may be used in the form of aqueous dispersions or solutions in organic solvents are polyvinyl acetate, polyacrylates and polyurethanes, and the cellulose derivative may be carboxymethyl cellulose or nitrocellulose. The solvent may be ethyl acetate and the paste may also contain softeners, e.g. dibutyl phthalate, precondensates of thermosetting resins, e.g. melamine-formaldehyde resins, and pigments, e.g. titanium dioxide, or aluminium powder combined with a suitable dye.ALSO:Permeable plastic leatherette is produced by applying to one of the two sides of a textile non-woven stitch-bonded fabric in such a manner as to rub it in a paste having a viscosity of 15,000-40,000 centipoise and a dry solids content of 20-35% by weight the paste containing intermiscible solutions or dispersions of one or more synthetic resins and one or more cellulose derivatives being organic emulsoids having the function of thickening agents, the emulsoids constituting 40-50% by weight of the synthetic resins contained in the paste, and drying it, e.g. at 80 DEG C or 100 DEG C.  The fabric which may contain viscose rayon fibres may be stitch bonded by chain, satin, plain or tricot stitching and the untreated side may be raised.  Suitable synthetic resins which may be used in the form of aqueous dispersions or solutions in organic solvents are polyvinyl acetate, polyacrylates and polyurethanes.  The cellulose derivative may be carboxymethyl cellulose or nitrocellulose.  The solvent may be ethyl acetate and the paste may also contain softeners, e.g. dibutyl phthalate, precondensates of thermosetting resins, e.g. melamineformaldehyde resins, and pigments, e.g. titanium dioxide, or aluminium powder combined with a suitable dye.  The paste may be rubbed in by applying it to the fabric in such a way as to impregnate the fabric by mechanical means, e.g. a doctor blade or a set of rollers which rub or push the paste into the fabric.  The leatherette may be used for making footwear, cardigans and blazers.
Patent GB-613089-A (GB)
Title: Improvements in electro-magnetic relays
IPC: H01H50/58
Filed: 1946-06-04
Abstract: 613,089. Electromagnetic relays. SOC. ANON. COMPAGNIE INDUSTRIELLE DE MACHINES AUTOMATIQUES DE COMPTABILITE. June 4, 1946, No. 16973. Convention date, May 4, 1944. [Class 38 (v)] A relay is provided with a pile of fixed and movable spring blade contacts which are secured to a base independently of the energizing coils, armature and actuating member. The armature is pivoted to the base and its movement is transmitted to the actuating member which is in the form of a longitudinally-moving ladder, each rung of which engages one of the movable spring blades. Fig. 1 shows a part sectional view of the relay. The base 1 is of non-magnetic cast metal and is bolted to a cross-member 9 which may support a number of similar relays. The base 1 supports two energizing coils 14 wound on iron cores 12 and joined in series. A part 3 of the base 1 is provided during the casting process with a rod 11 which supports two insulating shells 33, 34 provided with slots to receive the contact blades. The armature 22 is pivoted at 24 and is formed with an extension to which the actuating member 6 is hinged at 28. Member 6 comprises two uprights 50 connected by rungs 63 which bear on the movable contact springs 55 which are lowered into contact with the fixed contacts 59 when the armature is attracted to the cores 12. The armature is retained in the attracted position by a catch 30 till released by the rotation of the spindle 32. Fig. 6 shows the method of fixing the shells 33, 34 to the rod 11. The rod 11 is passed through openings in the shells and through a spring plate 36, portions 37, 38 of which are bent out to form lugs which engage under a head H on the rod. Fig. 7 shows one of the spring blades in which the contact 40 is carried by a resilient portion 41 of the blade. Turned-up edges 42, 43 stiffen the centre part of the blade which is formed with stops 46, 47 to engage the front face of the shell 33 and with a bent-out lug 45a which engages the rear face of shell 34 as shown in Fig. 1.
Patent GB-842382-A (GB)
Title: Apparatus for the automatic positioning of moving members
Inventor: TOWNS VICTOR WILLIAM HENRY
IPC: G05B19/04
Filed: 1955-06-13
Abstract: 842,382. Photo-electric control systems. HILGER & WATTS Ltd. Aug. 21, 1956 [June 13, 1955], No. 16976/55. Class 40(3). [Also in Group XXII]  Apparatus for positioning a movable member 7 relatively to numbered major graduations 3 of a scale I to a position expressible in terms of a number defining a major graduation and fractional parts of the distance between adjacent graduations, comprises motor driven means 12 for carrying the member to the desired position, a sensing device 5 for stopping the carrier 17 when the device is accurately positioned relatively to a numbered major graduation of the scale, and means 11, 13 for moving the sensing device relatively to the carrier for the fractional part of the distance. The position required for the tool 7 is set-in on selector switches 15 operated by hand or by a punched card, the position selected in Fig. I being 12.3456 inches from the datum point. The switches C-F produce a coded electrical signal which is compared in a comparator circuit 33 with the signal from coded discs 25 connected by gearing 37, 39, Fig. 2, to the screw 13. The comparator causes the motor 11 to rotate the screw 13 until the signals are identical, thus moving the detector 5 to the left by a distance of 0.3456 inches. An electrical comparator circuit 35 then compares the signal from a main scale sensing device 31, consisting of fingers contacting coded magnetic, mechanical or electrical tracks 9, with the signal from the switches A and B, and operates the motor 12 which moves the tool carriage 17 until the detector 5 is in the region of the 12 inch line of the main scale. The control of the carriage motor then passes automatically to the detector which slows down the motor and stops it when the detector is over the 12 inch line. The tool is then in its correct position. The detector 5 is of the photo-electric type described in Specification 833,329. Instead of moving it initially to the left, it could be moved to the right by a distance of 0.6544 inch and the switches A B set to 13 inches. In a modification, the scale 1 travels with the carriage and the detector 5 and slide 19 are mounted on the bed. Furthermore, the tracks 9 may be set out on a disc 35, Fig. 4, carried by the detector slide 19 and driven by a rock 37.
Patent GB-169501-A (GB)
Title: Improvements in vehicle headlights
IPC: B60Q1/08
Filed: 1920-06-23
Abstract: 169,501. Ryan, J. C. June 23, 1920. Vehicle lamps.-In a vehicle head-light, the lamp 17 is mounted in front of a concave shield 16 facing the upper part of the main reflector 3 having a central aperture behind which is mounted a plane mirror 18 set at a suitable inclination to reflect the light rays in parallel beams. The central part of the shield 16 is given a polished surface, the remainder being dull to diffuse the light and the lower part 20 of the reflector 3 is also given a light-diffusing surface. Below the shield 16 is an inclined plane mirror 19, and the shield is provided with an extension 21. The under surface of the mirror 19 and the extension 21 are enamelled to form a diffusing- surface.
Patent GB-1045645-A (GB)
Title: Improvements relating to polymerisation catalysts
Inventor: BARNEY ARTHUR LIVINGSTON
IPC: C08F4/68
Filed: 1965-04-22
Abstract: In a process of making olefin polymers at least one a -mono-olefin of formula R-CH=CH2, wherein R is hydrogen or alkyl of no more than 16 C is contacted at - 30 to + 70 DEG  C. in an inert solvent with a catalyst obtained by mixing (1) 3-30 molar proportions of R.R1.AIX where X=Cl, Br or I and RR1=alkyl, (2) one molar proportion of a vanadium compound, being a trialkylorthovanadate, a triphenyl-orthovanadate having hydrogen in the ortho position, or an open-chain b -diketone chelate of V+++ and (3) at least 0.01 molar proportion of a metal promoter being an open-chain b -diketone chelate of Zn or Cd or zinc or cadmium salicylate, the concentration of vanadium in the solvent being at least 0.0001 M.  Specified olefins are ethylene, propylene, 1-butene, 1-pentene, 1-decene, 1-octadecene and 4-methyl-1-pentene. Copolymers may be made from ethylene/propylene, ethylene/1-butene, ethylene/1-decene/4-methyl-1-pentene and propylene/1-butene. Terpolymers of ethylene/propylene/1:4-hexadiene, dipolymers of ethylene/1:4-hexadiene and the inclusion of dicyclopentadiene as a monomer are described.  Polymerization of compounds <FORM:1045645/C3/1> inter alia is also described.ALSO:Polymerization catalysts are made by mixing in an inert solvent (1) 3-30 moles of a dialkylaluminium mono-chloride, bromide or iodide with (2) 1 mole of a trialkylorthovanadate, a triphenyl orthovanadate having hydrogen in the ortho position on an open chain B-diketone chelate of trivalent vanadium and (3) at least 0.01 mole of a zinc or cadmium B-diketo chelate or salicylate, the concentration of vanadium in the solvent being at least 0.0001 molar.  Numerous examples of components are given in which S and F occur in organic radicals. e.g. <FORM:1045645/B1-B2/1> <FORM:1045645/B1-B2/2> <FORM:1045645/B1-B2/3> <FORM:1045645/B1-B2/4> <FORM:1045645/B1-B2/5> <FORM:1045645/B1-B2/6>