baber/WOPTO huggingface dataset:
Patent GB-735554-A (GB)
Title: Improvements in or relating to frequency-stabilising circuit-arrangements
IPC: H03J7/04
Filed: 1953-11-13
Abstract: 735,554. Automatic frequency-control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 13, 1953 [Nov. 17, 1952], No. 31527/53. Addition to 679,457. Drawings to Specification. Class 38 (4). In a frequency-stabilizing arrangement for the local oscillator of a receiver, e.g. of single sideband type, by one of two pilot frequencies flanking the signal band as described in the parent Specification, which pilot frequencies energize frequency-selelective circuits whose output, when both pilot frequencies are present, suppresses a sweep or search generator slowly frequency modulating the local oscillator until locking on the two pilot frequencies is effected, faulty operation of the "catching" during fading of one or both the pilot frequencies is prevented by an A.V.C. circuit applied to the initial stages of the receiver. This comprises successively a square law detector fed from the input to the pilot frequencies selective circuits, a filter responsive to the frequency difference between the pilot frequencies, an amplifier and a rectifier. The output of the square law detector is therefore proportional to the amplitude of the pilot frequencies. Furthermore the A.V.C. circuit is arranged to be blocked and rendered inoperative by the voltage blocking the sweep generator when locking has been effected. The square law detector may be a crystal or triode grid detector, or a push-pull triode detector. Specification 725,903 is referred to.
Patent GB-537044-A (GB)
Title: Engine starter
IPC: F02N15/06
Filed: 1939-12-05
Abstract: 537,044. Turning-gear. DEHN, F. B. (Briggs & Stratton Corporation). Dec. 5, 1939, No. 31538. [Class 7 (v)] In an engine starter in which a pinion 8 rotatably journalled on a starter shaft 7 is moved axially into mesh with an engine gear 5 by the engagement of an externally threaded sleeve 9 on the pinion with a nut 11 driven from the shaft 7, means engageable with the sleeve 9 imparts driving rotation to the pinion independently of the screw-and-nut connection 9, 11 when the pinion fails to mesh with the gear 5. As shown in Fig. 1, the nut 11 is driven from the shaft 7 through a rubber annulus 15 held in compression between a flange 12 on the nut 11 and a flange 13 secured upon the shaft 7, the flange being retained in frictional engagement with the annulus by a cover 16 flanged at the edges 17. If the pinion 8, in its axial movement through the nut 11, fails to mesh with the gear 5, the axial pressure of the nut causes the annulus 15 to grip the smooth part 10 of the sleeve 9 and to impact rotation to the pinion independently of the screw-andnut connection 9, 11. In a modification, Fig. 4, pins 21 carried by the annulus 15' pass through holes 24 into engagement with radial pins 20 in the nut. If the pinion fails to mesh, the pins 20 are pressed into engagement with the sleeve 9 by cam faces 23 on the ends of the pins 21.
Patent GB-520841-A (GB)
Title: Improvements in or relating to warp knit fabric containing indiarubber threads
IPC: D04B21/18
Filed: 1938-11-01
Abstract: 520,841. Knitted fabrics. DEUTSCH, L. Nov. 1, 1938, No. 31580. [Class 74 (ii)] A two-way stretchable fabric for bathing costumes, garters, girdles. brassieres, corsets, borders of stockings &c. consists of a warp fabric knitted of inelastic yarns in which a single set of rubber threads d is incorporated. The rubber threads follow the general direction of the inelastic yarns in a zig-zag or wavy line or extend diagonally across the fabric. The rubber threads are laid in under tension. When the tension is released the fabric assumes a quilted appearance.
Patent GB-788926-A (GB)
Title: Improvements in or relating to the production of heat and corrosion resistant bodies
Inventor: BLAINEY ALAN
IPC: B22F7/06
Filed: 1947-12-01
Abstract: A nuclear fuel element (or fertile element) comprises sintered uranium or thorium enclosed in an envelope of a sintered heat conductive material of small neutron capture cross-section and high melting point, such as beryllium or zirconium.  The materials may be metallic powders or flakes or in the form of oxides or carbides. Rings of sintered beryllium are assembled in a mould with a beryllium disc at one end and pressed to form a cylinder.  Cylindrical pellets of sintered uranium of slightly less diameter than the internal diameter of the rings are inserted the filled cylinder is subjected to heat and pressure and a second beryllium disc is hot pressed to close the cylinder.  Aluminium powder may be mixed with the beryllium powder to lower the sintering temperature, and the sintering may be performed in an atmosphere produced by addition of paraffin or petroleum oil to the particles.  The elements, instead of being cylindrical may be tubular, of star-shaped cross-section, or prismatic or they may have radial fins.
Patent GB-193514-A (GB)
Title: Improvements in seat guards for water closets
IPC: A47K13/16
Filed: 1921-11-26
Abstract: 193,514. Meldal, E. Nov. 26, 1921. Seat-guards.-The guards b are suspended in a casing a by means of wire loops d passing through each of the upper corners and engaged by hooks d<1>. The guards are folded with the edges downward. The front edges are formed with tabs b<3> by means of which the guards are pulled out of the casing. The rear edges have similar loops d<2> engaged by spring clips d<3>. When in position the tab b<3> is engaged by resilient clamping means attached to the underside of the seat. The lower half a<2> of the front of the casing is hinged to the upper. The form shown is for use at the back of the seat. In a modified construction for use elsewhere the guards are not folded and have no fastening means at the bottom but are clamped at the back when in portion on the seat by a clamping bar in resilient bearings.
Patent GB-136838-A (GB)
IPC: D02G3/08
Filed: 1919-12-18
Abstract: 136,838. Issenmann, C. March 8, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Paper strips, forming yarns and threads from. -Paper-stuff strips or fibre strips are converted into rovings for treatment on a spinning or twisting ma.- chine by folding them whilst in a wet state. Strips are led from a drum or reel b over a loose roller c, on which, if desired, they may be moistened in known manner, through a folding-device d, and cross-wound on a bobbin e.
Patent GB-776373-A (GB)
Title: Method of securing an insert of rigid material in a sheet of rigid material
Inventor: PRESTIGE HARRY THOMAS
IPC: H05K13/04
Filed: 1954-11-03
Abstract: In a method of securing an insert such as a disc in a sheet of insulating material, an aperture is punched in the sheet with the insert, or a sheet of the insert material, under the punch so that it is forced into the sheared aperture.  Metal inserts such as a tube or terminal may also be punched end on into a sheet of electrical insulating material by means of a punch having recesses for lugs, stems &c.
Patent GB-1016103-A (GB)
Title: Liquid gas fuelled lighter
IPC: F23Q2/52
Filed: 1962-08-20
Abstract: 1,016,103. Lighters using liquefied gas. MARUMAN CO. Ltd. Aug. 20, 1962 [Aug. 22, 1961], No. 31824/62. Heading F4F. A liquefied gas lighter in which a gas stop valve in a casing 8 and a sparking mechanism are operable either simultaneously or individually comprises a sparking wheel operating member 16 having an elongated slot 21 along which a control piece 23 can be slid into or out of operative alignment with a lever 13 for operating the stop valve. The control piece 23 has springs 24 to provide sliding resistance and a pusher 22 extending through the slot 21 to contact the lever 13 in operation. The lever 13 has a fulcrum 13a supported on a flange 6a of a flint tube 6 and is forked at one end to engage a gas discharge nozzle 12 which is vertically moved to operate the stop valve. The operating member 16 is pivotally mounted on a shaft 14 in the lighter casing and has rack gear teeth 18 which engage a single or pair of gearwheels 20 fixed on a rotatable shaft 19. A sparking wheel 15 and a burner cap 25 are fixed on the shaft 19. The flint tube 6 is screwed into two tapped holes 2c and 2d in the top and bottom walls of a fuel tank 2 which contains the casing 8 and a filling valve 3. Screw plugs 4 and 7 for the filling valve and flint tube extend through the lighter casing to hold the tank 2 in position in the casing 1. The valve casing 8 incorporates a regulating valve operated by a knob 10 projecting through a gap between the lighter casing and a wind shield 9.
Patent GB-1302110-A (GB)
IPC: H04W88/02
Filed: 1970-07-01
Abstract: 1302110 Radio signalling; transistor amplifiers and oscillators MOTOROLA Inc 1 July 1970 [7 Aug 1969] 31890/70 Heading H4L and H3T A radio tranceiver comprises an encoderdecoder unit capable of responding to and of transmitting a calling tone, the encoderdecoder being of the type comprising a frequency-selective amplifier with a switched positive feedback connection operative in transmit mode to cause oscillation at calling tone frequency, and the power supply in transmit mode is reduced after an initial start-up period of increased supply, this enabling the rapid start-up of a mechanical reed filter in the frequency-selective amplifier. In the "receive" mode (switch 10 at R) an audio switch is closed to produce a signal for loudspeaker 19 provided that the received carrier level is high enough to operate squelch circuit 21, and that the calling tone is detected by encoder-decoder 22. This tone is filtered from the audio signal at 23 and applied to preamplifier Section 46-49 the output from 48 being applied via 60 to differential amplifier 58, 59 which energizes the coil 82 of reed filter 81 via emitter-followers 75, 79 and 80. The correct tone causes resonance of the reed and hence an output in coil 83 which is amplified by 92, 93, 95 for application to a differential amplifier 100, 102 operative as a detector. The detector output is amplified at 107 and by Darlington pair 108, 109, with the calling tone component filtered by capacitor 111, and this signal is applied to AND gate 123, 124 together with the squelch signal (applied via 120, 121) to generate the signal to enable audio switch 17. Switches 117 and 118, and 134 enable selective disabling of the calling tone decoder and of the squelch circuit respectively, and if 118 only is closed the circuit operates in OR manner to enable the audio switch if either signal is present. In the "transmit" mode switch 50 stops conduction of transistors 33-35 to de-energize preamplifier stages 46-49 and remove the power supply to read 81 via 33 so that the reed is now supplied through resistor 145. At the same time 140 is switched on to short out 61 and increase the current through 66 to alter the bias on transistors 72, 76 and 104, to enable them to pass increased current which produces a current "spike" to speed up the starting of the reed oscillation. This initial current is drawn from capacitor 87 (charged to a high potential in the "receive" mode), but the current falls after an initial "start-up" period since it must then be drawn through the (relatively) high resistance 145. The coded frequency oscillations amplified at 92, 93, 95 are passed from the emitter of 93 via 141 (now conductive and acting as an emitter-follower) to 142 for amplification and use as modulating signal, the oscillator feedback loop being completed by circuit 60. The detector 100, 102 is disabled in "transmit" node by the increased voltage applied to the base of circuit 102.
Patent GB-187495-A (GB)
Title: Improvements in or relating to stencil hand stamps
IPC: B41K1/44
Filed: 1921-11-29
Abstract: 187,495. Pritchard, G. T. Nov. 29, 1921. Stencils and stencilling; hand stamps; inking- apparatus.- A hand-stamp for stencilling addresses on labels, &c. is constructed of a casing 1 formed of sheet metal and containing a foraminous metal or like ink container 11 arranged to supply ink to a pad preferably formed of three layers of felt &c. arranged in stepped formation and comprising an upper layer 10<a> of larger size than an aperture 3 in the bottom 2 of the casing 1, an intermediate layer 10<b> which fits the aperture, and a smaller layer 10<c> which is arranged adjacent to the stencil. The stencil is made of fibre and is prepared in a typewriter, or bv hand, and is secured over an aperture in a cardboard frame 15 which is secured in pockets or clips 12 which extend only partly across the same and engage recessed portions in the centres of the short sides of the frame 15. The casing 1 is closed by cover 5 which engages under lips 4 on the casing, and is formed with an operating-handle 9. The cover 5 is formed with a prolongation 6 fitting in a cutaway part of the side 6<a> of the casing 1, and snap-hooks 8 on springs 7 guided by guides 7<a> hold the cover in position. The construction of the pad 10 is adapted to prevent smearing of ink, and to increase the cushioning effect of the device.
Patent GB-1467770-A (GB)
Title: Tractor having at least one lawn mower mounted thereon
IPC: A01D34/43
Filed: 1975-07-31
Abstract: 1467770 Lawn mower mounting JACOBSEN MFG CO 31 July 1975 [12 Sept 1974] 32091/75 Heading A1F Each lawn mower of a gang mower is mounted on a tractor by a yoke 47 rigidly connected to a shaft 38 which is rotatable in a sleeve 37 welded to an arm 21 pivoted on the tractor, and the ends of a torsion spring 36 are secured to the shaft 38 and sleeve 37 respectively to counterbalance the rotation of shaft 38 in sleeve 37 due to the weight of a drive mechanism at one end of the lawn mower. The mating shaft and sleeve extend in the fore- and-aft direction of the tractor and thus transversely to the lawn mower axis. A clamp 52 secures one end of spring 36 to sleeve 37 and may be rotated to adjust the torsional force in the spring.
Patent GB-1237169-A (GB)
Title: Process for producing polymers of ethylene and catalysts therefor
Inventor: HORI IOSHIO
IPC: C08F4/64
Filed: 1969-06-25
Abstract: 1,237,169. Catalytic polymerization of olefins. MITSUBISHI PETROCHEMICAL CO. Ltd. 25 June, 1969, No. 32157/69. Heading C3P. New catalysts comprising (A) an alkylalkoxyaluminium compound of the formula A1R- (OR<SP>1</SP>)Cl, wherein R is C 1-8  alkyl and OR<SP>1</SP> is C 1-10  alkoxy, (B) a tetravalent titanium compound of the formula Ti(OR<SP>11</SP>) n Cl 4-n  wherein OR<SP>11</SP> is C 1-10  alkoxy and n is an integer of 1-4, and (C) a solid titanium compound containing C 1-10  alkoxy groups in the proportion of not less than 0À2 alkoxy groups per titanium atom are used to prepare homopolymers of ethylene or copolymer of ethylene and another α-olefin, preferably propylene. The exemplified catalysts comprise as component (A) ethylbutoxyaluminium chloride, butylbutoxyaluminium chloride and ethylethoxyaluminium chloride, as component (B) di-n-butoxytitanium dichloride, tetrabutoxytitanium, tributoxytitanium chloride, monobutoxytitanium trichloride, titanium tetrachloride, dibutoxytitanium dichloride, tetraethoxytitanium, octoxytitanium trichloride and monobutoxytitanium trichloride, and as component (C) Ti(OC 4 H 9 )Cl 2  prepared by reaction of d-n-butoxytitanium dichloride or tetrabutoxytitanium with triethylaluminium, diethylaluminium chloride or ethyl aluminium dichloride, and Ti(OC 4 H 9 ) 0À3 Cl 2À7  prepared by reaction of monobutoxy-titanium chloride and diethyl aluminium chloride. The polymerization is carried out in a liquid medium, hexane and heptane being exemplified.
Patent GB-321626-A (GB)
Abstract: 321,626. Rapkin, G. C. March 12, 1929. Albums.-An album for collecting envelopes, which have passed through the post, photographic negatives, &c. comprises a number of transparent envelopes or containers bound in a cover. The album may have stiff outer covers a, Fig. 2. connected by a flexible portion b, within which is fixed a strong C-shaped spring c. One cover may have a flap d, secured by a press-button e. The envelopes or containers f are each formed by doubling a piece of material, such as transparent paper or tracing-cloth, upon itself, and securing together the edges at two opposite sides by means of strips of woven or other material h, i, Fig. 3. The strip i is connected by a thin sheet of material j to a stiffer piece of material k, such as stiff paper or cardboard, to form a binding-edge. The envelopes are placed within a cover l, Fig. 2, of cloth, paper, &c., and the whole is then placed within the spring c, which grips the strips k together.
Patent GB-667987-A (GB)
Title: Rotary gear-type metering pump
IPC: F04C2/14
Filed: 1949-12-15
Abstract: 667,987. Gear-wheel pumps. DU PONT DE NEMOURS & CO., E. I. Dec. 15, 1949. [Jan. 4, 1949] No. 32244/49. Class 110(ii). Two gear pumps have a common intake and deliver two separate streams of fluid at a substantially uniform rate. The driving gears 6, 10, are keyed to a shaft 14, and the driven gears 7, 11 rotate around a fixed shaft 18 which contains an outlet 28 for the second pump. The pumps are designed primarily for supplying viscous solution for spinning purposes. The fluid passes into the pumps under gravity or pressure by way of channels 22, 23, and deliveries pass through channels 26 and 27 respectively from the two pumps. Suitable steels for making the pumps are described in the Specification and contain chromium, carbon, cobalt, vanadium and molybdenum in various proportions. Case hardening may be used. A list of viscous materials which may be pumped is given in the Specification.
Patent GB-746079-A (GB)
Title: Improvements in or relating to containers
IPC: A47G19/34
Filed: 1953-11-21
Abstract: 746,079. Dispensing measured quantities of granular material. LAMB, H. Oct. 15, 1954 [Nov. 21, 1953] No. 32333/53. Class 106(5) A container for dispensing granular material, such as tea, sugar, flour, coffee, rice or ground rice, comprises a body 10, a spout 14 communicating with the inside of the container through an aperture 13, and a removable closure 11 for closing the top of the body, whereby with the container upright material may flow through the aperture 13 into the bottom of the spout 14 and upon inversion of the container be discharged by gravity. The closure 11 has slots 18 to form a bayonet connection with lugs 17 and a portion 19 far closing the top of the spout, the closure being angularly displaced to move the portion 19 away from the top of the spout when a measured quantity is to be delivered. The bottom 12 of the body is inclined towards the aperture 13 which may be provided with a slidable closure to enable its height to be adjusted.
Patent GB-1154194-A (GB)
Title: Anthraquinone Dyestuffs and Processes for their manufacture and use
IPC: C09B62/467
Filed: 1967-07-13
Abstract: 1,154,194. Anthraquinone dyes. CIBA Ltd. 13 July, 1967 [13 July, 1966], No. 32333/67. Heading C4P. The invention comprises compounds of the formula where X is the α-bromoacryloyl, α,#-dibromopropionyl or chloroacetyl residue bound to the NH bridging group through its CO group. The compounds are prepared by acylation of compounds of the above formula where X is hydrogen with the appropriate acid halide or anhydride, or by elimination of hydrogen halide from an anthraquinone dyestuff of the formula by treatment with alkali.
Patent GB-756907-A (GB)
Title: Improvements in or relating to a process and apparatus for the manufacture of fibresfrom plastic material
IPC: C03B37/06
Filed: 1954-11-09
Abstract: 756,907. Glass and like fibres. ALGEMEENE KUNSTVEZEL MAATSCHAPPIJ N.V. Nov. 9, 1954 [Nov. 9, 1953], No. 32373/54. Addition to 665,802. Class 56 In the drawing of glass or like fibres by the action of gas under pressure on a stream of molten glass, &c., the attenuated fibres being discharged by way of a divergent expansion channel 15 as in the parent Specification, means are provided for causing a turbulence in the pressure fluid before it meets the molten glass coming from the apertures 7. These means may comprise obstacles 18 in the path of the pressure fluid and which may be formed on the base of the melt container 1, as shown, and also on the inside of the enclosure 3 into which the pressure fluid is admitted from apertures 4, 5.
Patent GB-1417223-A (GB)
Title: Electro-chemical printing systems
IPC: G02F1/15
Filed: 1973-07-06
Abstract: 1417223 Recording medium INTERNATIONAL BUSINESS MACHINES CORP 6 July 1973 [28 July 1972] 32438/73 Heading D2B [Also in Division G1] An electrolytic recording medium for use with apparatus to provide for marks to be selectively recorded on the medium either permanently or erasably (see Division Gl) comprises a porous medium, e.g. paper, impregnated with a conductive salt such as potassium fluoride, ammonium fluoride, or ammonium oxalate a reducing agent for reducing metal ions released in the medium, such as ascorbic acid stannous chloride or stannous sulphate, and an electrochromic material such as a pH indicator or a Redox system. An electrochromic material is defined as one the electromagnetic radiation absorbtion characteristics of which may be selectively altered by the influence of an electric field.
Patent GB-1187873-A (GB)
Title: Pharmaceutical Compositions Comprising a Cardiac Glycoside.
IPC: A61K9/00
Filed: 1968-07-08
Abstract: 1,187,873. Cardiac medicines. E. MERCK A.G. 8 July, 1968 [21 July, 1967], No. 32483/ 68. Heading A5B. A cardiac medicine in unit dosage form comprises from 0.005 to 0.5 milligrams of the glycoside "peruvoside" per dosage unit in association with a pharmaceutically acceptable diluent or carrier. A diuretic may also be present in particular theophylline or a theophylline derivative for example 7-(2-hydroxypropyl)-theophylline or 7-(2-hydroxyethyl)-theophylline. Compositions may be in forms suitable for oral or parenteral administration e.g. a dragee or injection ampule.
Patent GB-374772-A (GB)
Title: Improvements in and connected with vehicle lamp brackets
IPC: B60Q1/068
Filed: 1931-11-24
Abstract: 374,772. Directing vehicle headlamps. COLEBROOKE, A. D., 14, Grand Parade, Brighton. Nov. 24, 1931, No. 32565. [Class 75 (iii).] In a lamp bracket comprising two members 4, 5, one attached to the vehicle and the other carrying the headlamp and being rotatable about an axis inclined to the vertical, one of the members 5 is formed with an annular projection 19, contained in a cylindrical recess 18 in the other member 4, and is maintained in its normal position by a coiled torsion spring 21 inside the projection 19. The members 4, 5 abut with their adjacent faces in the inclined plane 10, and the axis of rotation is that of a bolt 11 which is threaded into the upper part. The spring 21 engages in a radial slot 22 in the projection 19, and in a slot 23 radiating from the recess 18. Rotation is produced by a wire pulling on a lug which depends from the upper part and normally abuts against a lug 26 on the lower part. When the headlamp fits on a forked bracket, the latter is formed with an adapter having a split socket which fits on the spigot 3.
Patent GB-982638-A (GB)
Title: Improved tin vapour coatings
Inventor: CLOUGH PHILIP JAMES
IPC: C23C14/58
Filed: 1963-08-16
Abstract: A flexible non-metallic substrate such as paper or plastic is coated with tin in a vapour deposition process in which the tin is heated to above 1400  DEG C. in a vacuum, the rate of evaporation being in excess of 2 grams per minute per square inch of molten tin surface, and the tin coating is subsequently oxidized. The tin source is placed in a carbon crucible lined with molybdenum which may be applied by flame spraying.  The source is preferably heated by induction and the outside of the crucible is insulated with a layer of carbon wool and a layer of a refractory oxide.  To prevent oxidation of the tin source when the vacuum chamber is opened a cover and a source of nitrogen is provided for the crucible. The tin coating is oxidized by treating with hot moist air or with steam.