baber/WOPTO huggingface dataset:
Patent GB-737613-A (GB)
Title: Improvements in the automatic frequency control of oscillators
IPC: H04B1/30
Filed: 1953-06-17
Abstract: 737,613. Automatic frequency control systems. SOC. FRANCAISE RADIO-ELECTRIQUE. June 17, 1953 [June 17, 1952], No. 16786/63. Class 38 (4). [Also in Group XL (c)] An oscillator tunable over a relatively wide band, e.g. as the local oscillator in a single sideband receiver, has its frequency determining circuit inductively coupled to a second circuit comprising a capacitor and inductance variable under the control of a discriminator responsive to any deviation in frequency of the oscillator. The first and second circuits may be coupled by mutual inductance or, Fig. 3, by an inductance L4 common to the first circuit L3, C1, L4 and second circuit L4, C2, L2<SP>11</SP>. This Figure shows the arrangement applied to a tuned anode oscillator with frequency tuning variable capacitor C1 and with variable frequency correcting inductance L2" and with the inductances L3, L4 coupled to the grid circuit by mutual inductances M1, M2 of opposite sign, to ensure a constant amplitude as the tuning is varied. It is shown mathematically that if w o =1/#5.w, where w o  and w are the frequencies of the secondary and primary circuits per se, then ##/#L2, the ratio of the change in frequency of the primary circuit to the change in inductance of the secondary circuit is a minimum value with respect to w, i.e. is nearly constant. A fixed value for w o  is given which makes this relation hold approximately over the frequency range between the minimum and maximum values of the tuned frequency of the primary circuit and with the value of##/#L2 less than at the extreme limits of the frequency range. The secondary circuit inductance L2" may be variable by an iron core displaceable under motor control, or by a pair of non- magnetic metal vanes on a common spindle rotated to overlap on each side the inductance, or by a single vane rotated to a position between two inductance portions connected in series.
Patent GB-753086-A (GB)
Title: Improvements in wire rope making machines
IPC: D07B3/04
Filed: 1954-06-08
Abstract: 753,086. Making wire ropes. BLAISDELL, S. B. June 8, 1954 [June 23, 1953], No. 16815/54. Class 109. Between each pair of flyer sections 11, 12, 13 of a wire rope making machine is positioned a rotatable tubular shaft 18, mounted in bearings 17, within which a wire from, say, the cradle section 25a, weighted at 27, passes through a guide 22, 48, 55, the portion 48 being tubular and the portion 55 being U-shaped and furnished with a plurality of grooved rollers 58 whose axes are positioned upon an arc of large radius. The guide 55, 58 is removable. The wire, in its motion along the bow 35 of the section 12 is guided by rollers 40 mounted in brackets 41 riveted to the bow, each end of which is clamped at 36 to a bracket 33 on the flyer plate 31. The bow 351 of the first flyer section is a balancer to the bow 35a along which the wire from supply 14 is led, being pulled by the capstan 15. Two wires thus pass out of shaft 18 and are guided about the cradle 28 of section 12 by two bows 35. These wires, plus that from section 12, pass through shaft 18<SP>11</SP> which is therefore provided with three guiding tubes and guides 55, 58. The section 13 has three bows 35 guiding the three wires about the cradle 28<SP>1</SP> while a fourth bow forms a balancer.
Patent GB-530570-A (GB)
Title: Improvements in and relating to pistons for internal combustion engines and the like
IPC: F02F3/08
Filed: 1939-06-09
Abstract: 530,570. Pistons. CLAYTON, F. H., and LONDON PASSENGER TRANSPORT BOARD. June 9, 1939, No. 16868. [Class 122 (i)] On a piston 1 for an internal combustion engine or the like, a ring or portion of a ring 6 of heat insulating material extends downwardly from the crown 2 to a point at or near the gudgeon pin boss 4 and then inwardly over the boss. The ring may or may not extend upwardly to the top of the crown. The piston 1 may be made from a light metal alloy and the ring 6 of iron or ferrous alloy.
Patent GB-462796-A (GB)
Title: Improvements in or relating to constructional toys
IPC: A63H3/16
Filed: 1936-06-18
Abstract: 462,796. Toys. LINES, W. (Kellner G.) June 18, 1936, No. 16919. [Class 132 (iii)] A constructional toy comprises units band d each having an integral peg member a, the units being connected together by sleeve members c of rubber or other radially and longitudinally elastic material frictionally engaging in annular grooves a<1> surrounding the peg members a. The peg members are preferably of circular section and the units flat-sided. The units when connected are angularly adjustable but disconnection is difficult.
Patent GB-696720-A (GB)
Title: Improvements in grabs
Inventor: OSTLUND KARL BERTIL
IPC: B66C1/42
Filed: 1951-07-17
Abstract: 696,720. Load engaging means. STORA KOPPARBERGS BERGSLAGS AKTIEBOLAG. July 17, 1951. No. 16926/51. Class 78 (iv). A lifting device for transporting bundles of rods comprises at least two parallel spaced apart substantially vertical members 30, to the lower ends of which load supporting members 34 are pivoted, these members being swung into load supporting position by the movement of triangular crank members 28 and rods 44 caused by the upward movement of a horizontal member 68 disposed between the vertical members. The a,ppliance is protected by a casing 12 having means on its exterior for connection to one end of a horizontal beam 14 provided with eyes 16 for crane hooks. A horizontal spindle 10 supported by the casing 12 passes through slots 24 in a pair of vertical side pieces 20 upstanding from a base 18. These side pieces have ears 22 formed with slots 38 to receive pins 36 mounted in the members 30 which are pivoted at.26 in the plates 20. The pins 36 engage also in slots 40 in triangular crank members 28 which are connected at one corner by a pivot 26 to the plates 20 and at the other corners by pivots 42, 52 to rods 44 and links 54 respectively. The rods 44 are connected by links 50 to the pivots 32 of the load supports 34 and the upper pivots 46 of these links are arranged to engage the hooked ends 48 of the supports. The links 54 are connected to the spindle 10 and the right hand pivot 52 carries a pawl 56, the hooked end of which can engage the left hand pivot. The pawl has a projection 58, Fig. 2, which co-operates with an operating stop 72 pivoted at 76 to an operating member 60. This member has a slot 66 to receive the spindle 10 and supports the horizontal member 68. The device is shown in Fig. 1 with the parts disposed in readiness to engage a load. In this position the upper end of the slot 66 rests on the spindle 10, the end of the pawl 56 engages the left hand pivot 52 and the projection 58 rests on the nose 74 of the stop 72. When the device is lowered on to a load, as soon as the member 68 rests on the load, relative movement occurs between the parts since the stop 72 engages the projection 58 and raises it to free the links 54, which thereupon swing outwardly as the side plates 20, etc. move downwards with respect to the casing 12. The triangular cranks 28 swing outwards to depress the rods 44 and swing the load supports 34 to the position shown in Fig. 3.
Patent GB-1131164-A (GB)
Title: Novel halogen-substituted tetrahydroquinazoline derivatives, their preparation and compositions containing them
IPC: D01G23/08
Filed: 1967-04-13
Abstract: 1,131,164. 1,2,3,4 - Tetrahydroquinazoline derivatives. DR. KARL THOMAE G.m.b.H. 13 April, 1967 [20 April, 1966], No. 17098/67. Heading C2C. Novel 1,2,3,4 - tetrahydroquinazoline derivatives of the general formula wherein Hal represents a chlorine or bromine atom; R<SP>1</SP> represents a hydrogen, chlorine or bromine atom; R<SP>2</SP> represents a straight or branched chain C 1 -C 5  alkyl group, a hydroxyalkyl, alkoxyalkyl, dialkylamino, cycloalkyl, hydroxycycloalkyl, pyridalkyl or aralkyl group; and R<SP>3</SP> represents a hydrogen atom, an alkyl or an aryl group; and physiologically compatible acid addition salts thereof are prepared (a) when R<SP>3</SP> represents a hydrogen atom, by reaction of a 2-amino-benzylamine derivative of the formula with formaldehyde, (b) by reduction of a quinazoline derivative of the formula wherein X represents two hydrogen atoms or an oxygen atom with a metal hydride; (c) when R<SP>3</SP> represents a hydrogen atom or an alkyl group and R<SP>1</SP> is a chlorine or bromine atom, by chlorination or bromination of a 1,2,3,4-tetrahydroquinazoline of the formula wherein R<SP>3</SP> represents a hydrogen atom or an alkyl group; or (d) when R<SP>5</SP> is a hydrogen atom, by reduction of a 1,2,3,4, - tetrahydroquinazolone-(2) of the formula with a metal hydride; followed by optional conversion to a physiologically compatible acid addition salt of the product. Pharmaceutical compositions having antipyretic, anti-tussive and secretolytic activity comprise as active ingredient at least one 1,2,3,4 - tetrahydroquinazoline derivative of the first general formula above or a physiologically compatible acid addition salt thereof in association with a pharmaceutical carrier or excipient. 1,2,3,4 - Tetrahydroquinazolones - (2) of the fifth formula above are prepred by reaction of 2-amino-benzyl-amines of the second formula above with phosgene.
Patent GB-232823-A (GB)
Title: Improvements in windshield supports
IPC: B60J1/02
Filed: 1924-07-17
Abstract: 232,823. Dehn, F. B., (Budd Manufacturing Co., E. G.). July 17, 1924. Windscreens.-The windscreen of a motor vehicle or the like in supported at each end by means of a stanchion 14, the lower portion 15 of which passes freely through the bore 20 of a bracket 12 mounted on the vehicle and is engaged by a nut 24 or similar means for centring the stanchion and clamping it in place. Preferably a split tapering nut 24 is employed cooperating with a conical seating 21 on the bracket 12, while a corresponding tapering washer 17 and conical seating 19 are provided at the upper end of the bore 20, the washer 17 also bearing against a shoulder 16 on the stanchion. The brackets are preferably disposed in a longitudinal direction beneath the scuttle, and the stanchions pass through openings in the scuttle to enter the sockets 20.
Patent GB-561854-A (GB)
Title: Method of forming tyre-carrying wheel rims
IPC: B60B21/02
Filed: 1942-12-02
Abstract: 561,854. Making wheel rims. NEWTON, E. P. (Kelsey-Hayes Wheel Co.). Dec. 2, 1942, No. 17166. [Class 83 (ii)] In a method of forming a tyrecarrying rim, particularly for aeroplane wheels for tyres of large section, a sheet metal blank is first formed by die-pressing operations to provide a combined rim and wheel body member having a substantially axial tyre bead portion 15<1> extending into a radial part 16<1> and a second axial portion 18<1> which is serrated at 19 as by a knurling tool 21, Fig. 5, before being bent radially inwards, Fig. 2. The bending round of the serrated part is effected by two die-pressing operations, the second stage, using dies 24, 25, being shown in Fig. 7. The rim and wheel members include wheel body portions 2, Fig. 2, which are riveted at 12 to a hub 1. The hub which has a flange 7 carrying the brake drum 8 is preferably made from a sheet steel blank by drawing, upsetting and machining steps. An annulus 3, preferably made by looping and welding a sheet steel blank has diverging side flanges 17 preferably formed by die-pressing and is riveted to the wall portions 14 of the body members.
Patent GB-836175-A (GB)
Title: Noise suppressor and thrust reverser for jet engines
IPC: F02K1/40
Filed: 1958-05-29
Abstract: 836,175. Jet propulsion engines. BOEING AIRPLANE CO. May 29, 1958 [Sept. 3, 1957], No. 17198/58. Class 110 (3). [Also in Group XXXIII] Fig. 5 is a rear perspective view of a silencing nozzle, and Fig. 4 a part view looking downstream. The upstream part of the gas flow duct in the nozzle is defined by a tail cone 8, and annular and radial splitter plates 10, 11. The compartments so formed are faired into individual tubular jet pipes in an outer ring 12a and in an inner ring 12b. An exterior fairing 14 follows the walls of the jet pipes 12a, 12b to form valleys 13 into which ambient air flows promoting mixing with the exhaust gases.
Patent GB-145274-A (GB)
Title: Improvements in or relating to automatic fire arms
IPC: F41C7/00
Filed: 1919-07-10
Abstract: 145,274. Farquhar, M. G., and Hill, A. H. July 10, 1919. Breech actions, sliding breech-block and sliding barrel and breech-block; stocks. - Relates to automatic guns having the system of opening and closing springs described in Specifications 7969/06 and 28587/07 enclosed in a tube, and a sheath covering the spring-containing tube and part of the barrel, as described in Specification 126,055. According to the invention, (1) the end of the spring-containing tube b fits into a recess in a lump d on the underside of the breech body, and is retained by a spring catch e adapted to be locked by the sheath f when the sheath is in position, and (2) the sheath f is provided with a rib f<1> or strengthening bar on its underside, the end of the rib fitting into the lump d on the body. The rib is preferably formed with screw sockets for the reception of a hand grip or the pin on the stand head.
Patent GB-1248190-A (GB)
Title: Chewable tablets comprising a form of tetracycline
Inventor: GRANATEK ALPHONSE PETER
IPC: A61K31/65
Filed: 1968-09-12
Abstract: 1,248,190. Chewable tetracycline tablets. BRISTOL-MYER CO. 12 Sept., 1968, No. 17314/71. Divided out of 1,246,489. Addition to 1,113,492. Heading A5B. A chewable tablet comprises 0.0625 to 0.250 gms of a tetracycline antibiotic, 0.3 to 0.4 gms of mannitol and 0.001 to 0.02 gms of a solid polyethylene glycol. Glycine and conventional additives, e.g. flavours and sweeteners may also be included.
Patent GB-1077434-A (GB)
Title: Improvements in and relating to the contact-tempering of glass sheets
IPC: C03B27/004
Filed: 1966-04-20
Abstract: In the contact-tempering of glass sheets having polished parallel faces, a glass sheet heated to its softening point is brought into contact with at least one plate the working surface of which is covered with a glass fabric held in place on the plate by means of a coating of a temperature-resistant adhesive comprising a silicone resin.  The plate may be made of either graphite or a metal having a thermal expansion coefficient of less than 60 x 10-7 cm./ DEG C. such as tungsten, zirconium, osmium, molybdenum and beryllium or ferro-nickel alloys.  Plates made of metal have an internal water-cooling system.  The glass fabric thickness is dependent upon the temper required but for a 4.2 mm. thick glass sheet is 0.06 mm. The binding resin is preferably a layer no thicker than 0.02 mm.
Patent GB-904407-A (GB)
Title: Improvements in or relating to air-cooled internal combustion engines
IPC: F02F1/06
Filed: 1961-05-12
Abstract: 904,407. Cooling cylinders; valve gear. NSU MOTORENWERKE A.G. May 12, 1961 [May 14, 1960], No. 17434/61. Classes 7(2) and 7(6) Adjacent individual cylinder units of an air cooled engine are connected together, in the vicinity of the cylinder head, by a distance piece 3, Fig. 1, so that at operating temperatures the distance piece is expanded by substantially the same amount as the crankcase. The distance piece 3 which has cooling fins 7, Fig. 2, is held between the cylinder and cylinder head with the inter-position of heat-insulating means 6, and individual camshaft housings are joined by dustproof resilient bellows 11. In another embodiment a camshaft housing 12, Fig. 3, either builtup or as a single piece, is secured on the cylinder heads 5, with the interposition of heat-insulating means 13.
Patent GB-595922-A (GB)
Title: Improvements in automatic sheet feeding apparatus
IPC: B65H1/30
Filed: 1945-07-09
Abstract: 595,922. Feeding sheets. HOE & CO., Ltd., R., ROBINSON, Ltd.. E. S. & A., and BATTEY, A. P. July 9, 1845, No. 17458. [Class 100 (i)] To enable a sheet-feeding apparatus to work continuously the pile is maintained normally at a predetermined level by one automatically operated support and when this support reaches a given level the pile is transferred to a secondary support which continues the raising while the main support is refilled and advanced again to a position in which it again acts to effect the raising. As shown in Fig. 1, the main raising means consist of chains 4 attached to a support 1<1> for a pile board 1 on which rests a temporary support 2 carrying the pile 3. At a given level pivoted pawls 5 are moved aside against spring or gravity action and return so as to engage the underside of the support 2. The outward motion of one pawl 5 rotates a shaft 14 by means of an arm 11 and a ball-and-socket connection with an arm 13, and rotation of shaft 14 operates a trip member 18 which releases a catch 22 serving to control a mask device 26 arranged to prevent engagement of a pawl 27 with the teeth of a ratchet 28. The pawl 27 is oscillated from the machine being fed, and when the mask is rendered inoperative the pawl rotates the ratchet 28 and finally rotates also a ratchet 29 of smaller diameter when a gap in the teeth of ratchet 28 permits, and ratchet 29 is fixed to a shaft 10<1> geared by worm gearing to pinions 9 geared to racks 8 on the rods 7 which carry the pawls 5. The pile 3 is thus advanced by the rods 7 until a new pile is placed on the board 1 and moved into contact with the temporary support 2. The support is then withdrawn, and the pawl 27 put out of action when the chains 4 are made subject to the normal raising action under pile control. In a modification, Fig. 4, the support 2 is taken by bars 36 on chains 32 driven by sprockets 33 which are geared together and are driven by variable speed gear which can be set to synchronize with the associated machine, or can be driven under control of feelers resting on the pile, and this mechanism may be the same as that which controls the chains 4. Toothed gears or screw may replace the chains 32.
Patent GB-1096120-A (GB)
Title: Air cushion devices
IPC: B60V1/00
Filed: 1966-04-21
Abstract: 1,096,120. Air cushion vehicles. GENERAL MOTORS CORPORATION. April 21, 1966 [April 23, 1965], No. 17477/66. Heading B7K. An air cushion vehicle comprises a rigid load supporting platform 2 flanged at 20 and formed with a central depression 18 which abuts a shell 24 having a flange 22 which, with flange 20 secures the upper wall 28 of a flexible diaphragm 4. The diaphragm is dished upwardly at 42 and clamped at its centre to depression 18 and shell 24, thereby forming an annular chamber 10 and a plenum chamber 12 for a supporting cushion. A gas supply nozzle 62 is fitted in the rim and apertures 66 and 68 of respectively smaller and larger diameters are formed in shell 24 and diaphragm 4, whereby the diaphragm 4 may be inflated to enclose a supporting cushion.
Patent GB-129692-A (GB)
Title: Improvements in or connected with Periscopes and like Instruments.
IPC: G02B23/08
Filed: 1917-11-27
Abstract: 129,692. Barr & Stroud, and French, J. W. Nov. 27, 1917. Periscopes .-The prism C at the. head of a periscope or like instrument is pivoted at D to a link F swinging about the fixed pivot E, so that it will remain close to the objective B when set in any position intermediate to the extreme position" represented in Figs. 1 and 2 respectively. To set. the prism, a sliding bar L, Fig. 3, is operated to move a projection H on the prism along the fixed cam-slot K. A spring M bears against the back of the prism and steadies it during the movement. In a modified construction, the fixed pivot is mounted on the perisoope tube below the level of the objective B. In the construction shown in Fig. 5, the prism is pivoted to a block D sliding in horizontal guides.
Patent GB-949586-A (GB)
Title: Improvements relating to methods of strengthening glass objects
IPC: H01J29/87
Filed: 1961-05-15
Abstract: A method of locally strengthening a glass object (e.g cathode-ray tube) comprises coating the zone in which tensile stresses may occur with a layer of glaze having a coefficient of expansion approximately equal to that of the glass object, heating the zone until the glaze fuses to the glass surface, cooling and covering the glaze layer in its virginal state with an adherent protective layer of synthetic resin (e.g. acylic resin).  In an example, a glass object having the composition 70.3% SiO2, 0.5% Li2O, 7.8% Na2O, 7.5% K2O, 11.1% BaO, 2.5% Al2O3, 0.3% Sb2O3 (coefficient of expansion at 30-300 DEG  C., 95 X 10-7) is coated with a glaze having the composition 16% B2O3, 4% ZnO, 80% PbO (coefficient of expansion at 30-300 DEG  C., 100 X 10-7).  After fusing the glaze and cooling, the glaze is coated with acylic resin.
Patent GB-452943-A (GB)
Title: Improvements in heat and sound insulating walls
IPC: E04B1/76
Filed: 1935-06-19
Abstract: 452,943. Nonconducting coverings for heat and sound. MAUSER MASCHINENBAU GES., 28, Mar´enstrasse, Ehrenfeld, Cologne, Germany. June 19, 1935, Nos. 17637 and 17638. Convention dates, Feb. 28 and June 3. [Class 64 (ii)] [See also Group X] A heat- and sound-insulating wall comprises two spaced metal plates a, b each having guides d, the opposed pairs of which receive rails c of insulating material. The remaining hollow space is filled with corrugated asbestos sheet. In a modification Fig. 3, metal strips g are arranged between the guides d, and are secured together by a screw and threaded sleeve k, the heads of which fit into depressions in the strips g. Insulating material n, i is provided around the screw and sleeve. The rail c with strips g, slides between the guides d to hold the plates a, b together. The guides and strips g may have other interlocking shapes.
Patent GB-183029-A (GB)
Title: Improvements in or relating to gramophone soundboxes
IPC: G11B3/46
Filed: 1921-06-29
Abstract: 183,029. Streatfeild, S. R. June 29, 1921. Diaphragms, construction of. One or both sides of a carbon diaphragm are painted or enamelled.
Patent GB-431960-A (GB)
Title: Joint for structures built up of cylindrical section tubes or bars
IPC: E04B1/58
Filed: 1934-06-16
Abstract: 431,960. Jointed metal frameworks. GASCOIGNE, G. H., Queensmere, Wokingham, and KNOX, J. R., 7, Brunswick Hill, Reading, both in Berkshire. June 16, 1934, No. 17832. [Class 20 (ii)] A connector 1 for tubes or rods comprises a sleeve portion adapted to receive one structural member 3 and radiating socket portions 4 either plain or internally screw-threaded and adapted to receive the ends of other structural rods or tubes. The sleeve and socket portions are each provided with screwed apertures 9 surrounded by bosses 7 to receive securing screws, which may be either cupshaped 19 or pointed 18 at their inner ends for engagement with the structural members which are thus firmly held in position. The structural members 22 may be interconnected by a single sleeve connector 28 having multiple socket portions, Fig. 8, or by a number of sleeve connectors 25, 26, 27, Fig. 7, each having a single socket portion. Reference has been directed by the Comptroller to Specification 24968/11, [Class 20 (ii)].
Patent GB-546032-A (GB)
Title: Improvements in or relating to gas or other cookers
IPC: F24C15/08
Filed: 1940-12-20
Abstract: 546,032. Cooking stoves. TURLEY & WILLIAMS, Ltd., SMITH, C. D., and OTTON, D. H. Dec. 20, 1940, No. 17977. [Class 126] To facilitate cleaning plates forming parts of gas or other cookers are formed with rounded ribs 9 abutting the edges of overlapping plates 10. The application of the invention to cookers described in Specification 546,109 is illustrated.
Patent GB-466073-A (GB)
Title: Improvements in apparatus for testing sparking plug cables and pressure indicators
IPC: F02P17/12
Filed: 1936-06-30
Abstract: 466,073. Testing; gauges. STIRLING, J. W. June 30, 1936, No. 18114. [Class 7 (iv)] [Also in Group XIX] Sparking-plug cables and pressure indicators are tested by means of an arrangement comprising a chamber 6 having a window 9 and to which compressed air may be supplied. A pipe 13 communicates with a pressure indicator 3, and an opening opposite the window receives either a sparking-plug 11 to which the cable to be tested is attached, or an adapter carrying the pressure indicators to be compared with the indicator 3.