baber/WOPTO huggingface dataset:
Patent GB-650472-A (GB)
Title: Pulse modulation envelope detector
IPC: H03K9/02
Filed: 1948-02-19
Abstract: 650,472. Pulse modulation. BENDIX AVIATION CORPORATION. Feb. 19, 1948, No. 4959. Convention date, March 5, 1947. [Class 40 (v)] In a demodulator for a timemodulated pulse train, in which a storage circuit is supplied with voltages whose amplitude corresponds to the modulating signal amplitude, the storage circuit is connected in the input of an in-phase amplifier and energy is fed back from the output at a rate which compensates for leakage from the storage circuit in the intervals between the pulses. The condenser 38, forming the storage circuit across which a stepped signal wave is developed as described in Specification 650,471, is connected between the grid of cathode-follower stage 37 and earth. The output voltage is derived from the cathode resistance 39 and leakage from condenser 38 between the charging periods is compensated by energy fed back from the cathode to the condenser through resistance 50.
Patent GB-1302128-A (GB)
IPC: A45C11/00
Filed: 1970-02-03
Abstract: 1302128 Container assembly for storage bins J E JOYCE 3 Feb 1970 [11 Feb 1969] 5005/70 Heading B8P A container assembly for bins 40 comprises a container 10 and a rack 26 slidable in grooves defined by ribs 22 and 24 and the container rear wall 14. The assembly may be closed by a cover portion 30 of the rack or by a lid (56, Fig. 3) hinged to the rear wall 14 of the container. The bins 40 are supported on the rack by engagement of a slot along the bin rear wall with brackets 38, or by pairs of L-shaped pins (70, 72, Fig. 4) engaging pairs of holes (74, Fig. 4) in the bin bottoms, or by pairs of keys (84, Fig. 5), formed on the bin rear walls, engaging in pairs of shaped apertures (80, Fig. 5) in the rack. A bin supporting bracket or a pair of L-shaped pins may be provided on the front wall 12 of the container. The rack (26a, Fig. 3) may be held in one of several withdrawn positions by a pin (68, Fig. 3) inserted through one of a plurality of holes (66, Fig. 3) in the container side walls 18, 20 and into one of a plurality of holes (64, Fig. 3) in the vertical edges of the rack.
Patent GB-547084-A (GB)
Title: Improvements in wire rope or the like railways
IPC: B61B12/12
Filed: 1941-04-18
Abstract: 547,084. Rope grips. WHITE, J. W., and VALBERG, C. O. April 18; 1941, No. 5027. [Class 78 (ii)] A rope grip comprises a pair of arms 13, 14 pivoted at 15 on the frame of a wagon or the like, the operating ends of the arms being drawn together by a spring 19 so as to release the rope 18 andbeingpressed apart to cause the jaws 16,17 to grip the rope by cam mechanism on a spindle 6 which carries a lever 7 having rollers 8, 9 adapted to engage track stops or ramps to tighten or release the grip. In the construction shown the spindle 6 carries a cam 10 engaging between a pair of stops 11, 12 adjustable on the arms 14, 13.
Patent GB-1007730-A (GB)
Title: Detector device for looms
IPC: D03D35/00
Filed: 1964-02-06
Abstract: 1,007,730. Loom stop motions. TALON Inc. Feb. 6, 1964 [Feb. 28, 1963], No. 5047/64. Heading D1E. If the weft breaks, a knitting needle breaks or fails to knit a selvedge, a weighted feeler 8 passes through a gap between the warp threads to complete an electrical circuit with the take-up roller 4 to stop the loom. Specification 649,251 is referred to.
Patent GB-1140502-A (GB)
Title: Coating substrates by polymerization of vapours in an electrical discharge
IPC: C08F2/52
Filed: 1966-02-04
Abstract: 1,140,502. Gas polymerization by electric discharge. CONTINENTAL CAN CO. Inc. 4 Feb., 1966 [4 Feb., 1965; 13 Aug., 1965], No. 5071/66. Heading C3P. [Also in Division B2] A substrate is coated by maintaining an electric discharge other than an arc discharge through a polymerizable gas in the presence of the substrate which is cooled below the condensation temperature of the gas and a portion of the gas condenses on the substrate to form a layer all of which is polymerized by the discharge. The gas may be styrene, vinyl chloride, allyl or methyl methacrylate, divinylbenzene or butadiene. The substrate may be of metal or paper and may form the electrode, e.g. of tinplate or aluminium, for the discharge. The discharge may be normal or abnormal glow, corona or spark discharge. An apparatus is illustrated in Figs. 2-5 and 11- 15 (not shown).
Patent GB-819916-A (GB)
Title: Telescopic keel
IPC: B63B41/00
Filed: 1956-02-20
Abstract: 819,916. Boats with telescopic keels. KEMP, W. N., and WEYNDLING, W. W. Feb. 6, 1957, [Feb. 20, 1956], No. 5142/56. Classes 113 and 114. A hull has a telescopic keel made up of layers A of inverted trough form in transverse section, each layer fairing to a small radius at the ends S and capable of sliding into the one above. The lowest layer may incorporate solid ballast B, and the telescoped keel is contained in a recess H in the bottom of the hull. Holes admit water to the inside of the keel during extension and allow water to escape during retraction. Spigots D sliding in U-shaped guides C maintain the layers in position when the keel is fully extended. Vertical shafts I. J, K secured to the bottom keel layer travel in guide tubes L, M, N. The midship shaft J has a piston O above a cushioning space Q. Raising and lowering of the keel may be performed by any suitable mechanism, e.g. by screw jacks as shown on the shaft J, or hydraulic or pneumatic actuation of the piston O. The rudder may be raised by the lug W at the end of the bottom layers or may have a lever Y connecting the rudder to the keel so that as the keel is retracted the rudder is forced aft.
Patent GB-556766-A (GB)
Title: Improvements relating to heat interchange apparatus
IPC: F28F13/06
Filed: 1942-04-18
Abstract: 556,766. Heat-exchange apparatus. MORRIS MOTORS, Ltd., DONO, G. E., and GODDARD, R. H. April 18, 1942, No. 5186. [Class 64 (iii)] In a heat-exchange apparatus, such as an oil or other liquid cooler associated with a road-vehicle or aircraft internal-combustion engine, of the type comprising a series of thin-walled tubes a of elongated or flattened form in cross-section, each of which contains a thin sheet-metal web for strengthening and for increasing the rate of heat transfer from the tube, each sheet-metal web b has formed on it a number of lateral projections d adapted to exert a scrubbing action on the fluid flowing through the tubes. As shown, the web b is of corrugated form providing a series of channels e for the fluid flow and the projections d are constituted by the turned-up flanges of holes c punched out of the web b. The tubes a are provided with gills and connected between headers in the usual manner.
Patent GB-1053003-A (GB)
IPC: C08F36/04
Filed: 1965-02-05
Abstract: 1,053,003. Stereoregular polydienes. MINISTRY OF PETROLEUM & CHEMICAL INDUSTRY, RUMANIA. Feb. 5, 1965 [Feb. 5, 1964], No. 5191/65. Heading C3P. Stereoregular polydienes are produced by continuously feeding into a column reactor a homogeneous liquid mixture of diene monomer, inert hydrocarbon solvent, a polymerization catalyst comprising an aluminium alkyl halide and an organic nickel or cobalt chloride complex, and a minor proportion of methanol and water, polymerizing the monomer therein whilst maintaining the reactor cool, and withdrawing the polydiene product from the reactor. In the example butadiene is polymerized in benzene solution with a mixture of aluminium diethyl chloride and a complex of cobalt chloride with 2 - methyl - 5 - ethyl - pyridine as catalyst. The butadiene solution, catalyst, and the water/ methanol mixture are homogenized and continuously fed into a reactor to produce polybutadiene of 90% cis-1,4-structure.
Patent GB-137167-A (GB)
Title: Improvements in or connected with automatic weighing apparatus
IPC: G01G13/00
Filed: 1919-03-03
Abstract: 137,167. Avery, W. & T., and Burrows, J. J. March 3, 1919. Automatic - feed weighers. - In apparatus employed for weighing granular substances, means are provided for adjustably counterbalancing the dischargecontrolling gate of the hopper in accordance with different loads or material. For this purpose, the discharge door 5 of the hopper 3 is pivotally connected to bars 8 situated on each side of the hopper and pivoted by a fulcrum bar 9 to side brackets 10 on the hopper. One or both of the bars 8 are formed with the lower member 8<a> in such a way that, in addition to the usual counterbalance weight 12, which in certain circumstances is slidable along the bars, the sliding weight 14 can be provided. By moving the weight to either side of the fulcrum 9, the effective weight of the door is varied to suit varying capacities or materials under weighing.
Patent GB-545037-A (GB)
Title: Drink mixers
IPC: A47J43/07
Filed: 1941-04-23
Abstract: 545,037. Drink mixers. RAMSEY, A. R. J. (Scovill Manufacturing Co.). April 23, 1941. No. 5252. [Class 86] The agitator of a drink mixer comprises a number of blades loosely mounted on ar apertured retaining member on the end of the shaft whereby they may occupy a vestec position close to the shaft or an extended position. The blades 26 are provided with apertures 27 through which the arms 24 of a retaining member are passed, the member being secured to the shaft 14 by a screw. In other forms the retaining member is a press fit on the shaft, or on the stem of the screw &c.
Patent GB-402627-A (GB)
Title: Improvements in and relating to sliding windows of vehicles
IPC: B60J10/74
Filed: 1933-02-21
Abstract: 402,627. Vehicle-window guides. DAIMLER - BENZ AKT. - GES., Unterturkheim, Stuttgart, Germany. Feb. 21, 1933, No. 5352. Convention date, March 26, 1932. [Class 20 (iii).] A sliding window particularly for vehicles, of the kind which may be partly pushed out of its guiding means and is guided by extensions engaging guidechannels in the coachwork, has intermediate U-shaped guides d, e, f, g, between the sash extensions and the fixed channels c, the members d, e, and g, being attached to the sash, and the member f being attached to the fixed channel. The member d is secured by a riveted brass plate h and the members e, g, by pins. The intermediate guides are preferably made of sound damping material. The window is shown as applied to a vehicle door, the guides d, e being at the hinged edge.
Patent GB-1063500-A (GB)
Title: Convertible work-feeding device for sewing machines
IPC: D05B27/02
Filed: 1966-02-08
Abstract: 1,063,500. Sewing machines. SINGER CO. Feb. 8, 1966 [Feb. 18, 1965], No. 5393/66. Heading DIG. A sewing machine work feed comprises a pair of work-gripping surfaces located substantially opposite and substantially parallel to each other, and means for adjusting the lateral distance between the gripping surfaces. The feed advance shaft 17 has a pair of upstanding arms 19 pivotally supporting a feed bar having a depending post 21. A lever 39, pivoted at 38 to post 21, imparts feed advance movement. Feed dogs 23, 24 are carried by a bar secured by screws 22 to post 21. An upstanding arm 28 is pivoted at its lower end on an eccentric portion 30 of a pin 32 secured in post 21 by a grub screw 31. The upper end of arm 28 carries a feed dog 33. A bar 35, secured by screws 36 to post 21, has abutment surfaces which determines the left and right hand positions respectively of arm 28. As shown, bar 28 is in its left hand position and the dogs 23, 24, 33 occupy separate slots in a throat plate 41 detachably secured by pins 44 to the machine bed 10. Throat plate 41 is formed with an elongated slot between dogs 23 and 33, and the arrangement is used for zig zag sewing. For straight sewing, arm 28 occupies its right hand position, and the abutting feed dogs 24 and 33 pass through a single slot in a throat plate formed with a circular needle hole. Pin 32 is rotated to adjust the height of feed dog 33 for its alternative positions.
Patent GB-329664-A (GB)
Title: Improvements in or relating to television apparatus and the like
IPC: H04N3/04
Filed: 1929-02-19
Abstract: 329,664. Baird, J. L., and Television, Ltd. Feb. 19, 1929. Television.-The invention comprises various improvements relating to the apertures in a scanning disc. The linear distance between adjacent scanning apertures or mirrors may be uniform, so that the angular distance between them is greatest for apertures nearest the centre of the disc (Fig. 1, not shown). The apertures 36, Fig. 3, near the end of the spiral may be radially deeper than those, 35, near the middle. The depths may be graduated (Fig. 2, not shown) or of two different sizes, Fig. 3. An alternative method of equalizing the apparent lengths of the scanning-paths is shown in Fig. 13. The scanning disc 40 is cupped and may be provided with a rim (Fig. 4, not shown) in order that it may be light and rigid : or a flat or cupped disc flange at its circumference (Figs. 6, 7, not shown). The cupped disc 40 may be used at the receiver in conjunction with a fluctuating light source 71 and a lens 70 whose focal length is greater than its distance from the disc. The scanning apertures are in this case angularly equidistant, so that the linear distances between them are greatest towards the outer edge of the disc; but owing to the unequal magnification arising from the curvature of the disc, which produces inequality in the distances of the apertures from the lens, the apertures appear to the eye 73 to be linearly equidistant. In a modification (illustrated as applied to a transmitter in Fig. 15, not shown) a diverging lens is placed on the convex side of the disc 1. The scanning apertures may have bevelled edges as shown at 54, Fig. 8, in order to produce a clear-cut beam of light and to avoid parallax effects; or the thickness of the disc may be reduced in the neighbourhood of each aperture (Fig. 13, not shown). The scanning apertures 61, Fig. 9, may be covered by an annulus 62 of ground glass or celluloid, in the plane of which the image is formed at the receiving station; in this way parallax effects are avoided. Alternatively, each aperture 61 may be covered by a small translucent plate, (Figs. 10, 11, not shown). Specification 265,640 is referred to.
Patent GB-124814-A (GB)
Title: Improvements in or relating to Sound Detectors or Transmitters.
Inventor: WILDING HERBERT RAYMOND
IPC: H04B11/00
Filed: 1916-04-17
Abstract: 124,814. Wilding, H. R., and Bossini, R. F. April 17, 1916. Receiving audible signals.-Relates to apparatus particularly adapted for detecting rhythmical sounds such as those produced by an internalcombustion engine or propellers. The appliance comprises a diaphragm 3 contained in a casing 1 and connected by a rod 17 to a reinforcing tuning- fork 15. The other end of the rod is connected to the movable electrode of a microphone G secured in an extension of the casing. The second leg of the tuning-fork forms an armature to an induction coil 22 secured within the horn 12. The electric connexions are shown in Fig. 2, the microphone 6 being in series with the primary coil 24. and the telephone 26 with the secondary. The diaphragm and tuning-fork may be employed withwithout the microphone or induction coil.
Patent GB-662546-A (GB)
Title: Improvements in and relating to machines for spinning or twisting and winding yarns
IPC: B65H63/08
Filed: 1949-03-02
Abstract: 662,546. Spinning and winding yarn. COURTAULDS, Ltd., and CURTIS, G. March 1, 1950 [March 2, 1949], No. 5706/49. Classes 120(ii) and 120(iii) [Also in Group VIII] In a machine for spinning or  twisting and winding packages containing substantially equal yarn lengths and having one or more groups of spindles, at least one such group is provided with a counter &c. so correlated with the amount of yarn wound on each spindle that, when the counter reaches a predetermined position the winding of yarn on the spindles of the group is stopped automatically and successively in such a manner that the interval between the stopping of the winding on successive spindles is substantially the same as the time required to recommence the winding of a fresh package. As shown, a capspinning frame is provided with groups of, say, five godets 2 driven by a common shaft 10 and supplying yarn 1 to bobbins 6 on spindles driven by separate motors 8. Each yarn 1, on its way to collection, passes through the notch 3 of a .needle 4 supported by an L-shaped platform 18 mounted on a spring-urged slide 19 moveable in a recess 20. The needle 4 is weighted at 26 and provided with a collar 54, which in its lowermost position, i.e. when the needle 4 has dropped, will contact an attachment 53 of the traversing rail 9 and then partake of its motion. Geared to the shaft 10, or to a godet 2, is a counter 13 having a slotted hollow cylinder 41 attached to highest index disc, this cylinder retaining a rod 42, attached to a spring-urged block 31 until on turning with the pre-set counter when the required amount of yarn has been collected, the slotted cylinder releases the rod 42, to bring the block 31 within the range of a crank lever 35 attached to the reciprocating rail 9. The first movement of the block 31 moves a rod 14 carrying a rack 28 engaged by a spring pawl 29 on the block 31, and a notch 23 in the rod 14 moves the platform 18 to allow the weighted needle 4 to fall and break the yarn. Each traverse of the rail 9 now moves the rod 14 through one tooth of the rack 28, this movement resulting in the successive release of the platforms 18 of the group with the step-wise falling of the needles 4 and breaking of the threads. The setting-up time at each bobbin is approximately. the same as each traverse stroke of the rail 9. A lever 45 is provided so that the timing mechanism can be reset after the setting-up at each bobbin of a group has been accomplished. A wick 50 applies a fugitive dye to the yarn upon depression of the same as a needle drops to break it, so that an operative will know that a package having the dye thereon contains the predetermined measured quantity of yarn but not otherwise.
Patent GB-968435-A (GB)
Title: Catalyst system and process for preparing highly stereoregular polypropylene
IPC: C08F10/00
Filed: 1963-02-12
Abstract: Polymers of alpha-olefins are made by polymerizing the olefin in the presence of a catalyst composition comprising the reaction product of a halide of a Group IV(a), V(a), or VI(a) metal which is in a valency state below its maximum, an organoaluminium monohalide, an organoaluminium hydrocarbon, and an organic phosphine, arsine, or stibine.  The olefin may be ethylene, propylene, butene-1, 2-methylbutene-1, pentene-1, octene-1, heptene-1, decene-1, hexene-1, dodecene-1, 2-ethylhexene-1, styrene, butadiene, isoprene, 1,3-pentadiene, and mixtures e.g. copolymers of ethylene and propylene.  The polymerization is generally effected in an inert hydrocarbon diluent.  The Specification contains extensive lists of catalyst components. Catalysts exemplified are TiCl3 (prepared from TiCl4, by reduction with Al(C2H5)3, (C2H5)2AlCl, Al(C25)3, and/or tri-n-butyl phosphine or triphenyl phosphine, and VCl3, triethyl aluminium, (C2H5)2AlCl, and/or triphenyl phosphine and/or tri-n-butyl phosphine, TiCl3, (C2H5)3Al, (C2H5)2AlCl, and triethyl arsine, and TiCl3, triphenyl Al, diphenyl AlCl, and triphenyl stibine.
Patent GB-728138-A (GB)
Title: Improvements relating to the dyeing or other treatment of textile and like materials
Inventor: HANNAY ROBERT STEWART ERSKINE
IPC: D06P5/20
Filed: 1952-03-05
Abstract: The process of the parent Specification, wherein textiles and like materials are dyed or otherwise treated by impregnating them with a hydrosulphite-containing liquor, e.g. a vat or sulphur dye liquor, and then heating them by passage through a molten metal bath, is modified by the addition of sodium nitrite to the hydrosulphite liquor, whereby the formation of sludge in the metal bath is inhibited.  The hydrosulphite liquor floats upon the surface of the molten metal.  The process is applicable to fabrics, felts, sheets, webs or yarns of cotton, wool, rayon, nylon, glass and synthetic plastic materials.  Examples are given.
Patent GB-853599-A (GB)
Title: Improvements in or relating to devices, holders or frames for display purposes
IPC: G09F3/20
Filed: 1958-02-22
Abstract: 853,599. Licence holders. ZELL, M. Feb. 22, 1958, No. 5809/58. Class 73. A licence holder or frame particularly for mounting a licence on a windscreen comprises a disc 10 which is coated with an ever tacky adhesive on one side and provided with a paper cover disc 12 having perforations 13, 15, 16 to permit ready removal of concentric portion 14, 17. The disc 10 may be transparent or carry advertisements.
Patent GB-404483-A (GB)
Title: Improved safety guard for guillotines and the like
IPC: B41F1/60
Filed: 1933-02-25
Abstract: 404,483. Machinery guards. TRUSCOTT & SON, Ltd., J., and BOYCE, H. A., 3, Suffolk Lane, Cannon Street, London. Feb. 25, 1933, No. 5839. [Class 80 (iv).] A safety guard for printers' guillotines, presses, and other like machines comprises supporting means for a bar or rigid guard member extending across the front of the knife, ram, or other operative member, and means for automatically increasing the length of the supporting means during the operative stroke of the knife, ram, or the like, so as to push the bar away from the machine and force the operator's hands away from the danger zone. In the form shown, the knife g, on descending, operates links e<1>, e<2> of a lazy-tongs, the front bar f of which pushes the operator's hands away from the vicinity of the knife. The knife moves obliquely downwards, the cross bar b of the lazy-tongs links e<1> sliding in guide blocks c on the knife holder. In a modification for guillotines of the type having an inclined blade reciprocated vertically, the bar b is mounted in a pivot block fixed to the knife holder. According to the Provisional Specification, the bar or guard member may be actuated by bell-crank levers.
Patent GB-767121-A (GB)
Title: Frequency difference measurements
Inventor: NOBLE SPENCER WATKINS
IPC: G01R23/00
Filed: 1954-03-01
Abstract: 767,121. Frequency discriminators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 22, 1955 [March 1, 1954], No. 5915/54. Class 40(5) A D.C. voltage in magnitude and sense corresponding to the frequency difference between two frequencies f1, f2 is obtained .by applyirig both f1, f2 to each of switching modulators M1, M2, one input of one frequency f2 to one M2 of the modulators being displaced by about #/2 from the input of the same frequency f2 to the other modulator M1 by a reactive element jX in the cathode circuit of an amplifier V16 for f2 so that two different frequencies (f1 - f2) are obtained from M1, M2 the lead or lag of a particular one of which indicates whether f1 is of higher or lower frequency than f2. The difference frequencies (f1 -  f2) are then passed to squaring circuits comprising limiters V6, V8b and V7, V10a of the type having heavy negative feedback from an output cathode follower stage V8b or V8a, through parallel opposed double diodes V9, V10, to the input stage V6, V7 whenever the inputs to the final stages V8b, V8a are above or below a predetermined value. The square waveform outputs are as shown at A and C or A and E, Fig. 2, depending on the sense of frequency difference and one waveform A is differentiated by an R-C circuit D to produce negative and positive going pulses B to the grid circuit of one of a pair of triode valves V11 having common cathode coupling to earth through a series connected gate valve V12a normally cut-off but rendered conducting by alternate half cycles of the other square waveform C or E. A centre-zero meter connected between anode integrating circuits of the double triode valve V11 thus indicates the frequency of the pulses and therefore the frequency difference and sense of frequency deviation of the original frequencies fl, f2.