baber/WOPTO huggingface dataset:
Patent GB-992974-A (GB)
Title: Improvements in and relating to fluid-pressure apparatus for automatically controlling a motor vehicle clutch
IPC: F16D48/02
Filed: 1962-03-06
Abstract: 992,974. Controlling clutches. K. HEFEL. March 6, 1962, No. 8659/62. Addition to 912,639. Heading F2L. [Also in Divisions B7 and G3] A vehicle clutch is operated by a fluidactuated piston 3, Fig. 1, through a lever 5, which piston houses a control valve 1 connected to the accelerator pedal 2; another two-position valve 9 is actuated from the gear-change lever, not shown, via an electromagnet 10 to connect or cut-off the supply of pressure fluid to the valve 1 and piston 3. With the parts in the positions shown, a pump 8 discharges into a reservoir 22 by a groove 27 in valve 9 and a line 11. Upon operating the gearchange lever, the electromagnet 10 is energized and translates the valve 9 rightwardly to connect the pump discharge through a line 14, a bore 15 in valve 1, and ducts 17 into a chamber 18 wherein it acts to urge the piston 3 to the right until the ducts 17 are blocked by a land 19 on the valve 1 whereupon the piston movement closes with the clutch partially disengaged. When the accelerator pedal 2 is placed in the idling position the valve 1 is displaced to the right and the piston 3 follows until the ducts 17 are again blocked by the land 19; in this position of the piston 3 the clutch is fully disengaged. Each rightward movement of the valve 9 results in liquid being drawn into the valve housing through a non-return valve 21 so that in the event of the electromagnet 10 being prematurely de-energized the valve 9 returns slowly to the position shown, since it expels the liquid in its housing through a restriction 23, so ensuring smooth clutch engagement. The land 19 may be narrower than the ducts 17. In a modification, upon energization of the electromagnet 10, Fig. 4, the valve spool 43 is pulled to the left and compressed air flows from an inlet 42 through a line 44 to a chamber 49 and urges a spring-loaded piston 48 to the left so pressurizing oil in the chamber 47 on the other side of the piston 48, which chamber 47 leads to a space 51 around the valve 1. Movement of the accelerator pedal causes a land 19 to open the space 51 to a pressure chamber 18, the compressed air forcing the piston 48 further to the left whereby a uniform oil pressure is supplied to the servomotor. Upon de-energization of the electromagnet 10 the parts return to the positions shown, the chamber 49 being exhausted via port 52 and oil being supplied to the chamber 47 from the reservoir via the spool 43 and lines 45, 46.
Patent GB-651087-A (GB)
Title: Improvements in frequency modulators
IPC: H03C3/40
Filed: 1948-03-24
Abstract: 651,087. Frequency modulation. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 24, 1948, No. 8681. Convention date, March 27, 1947. [Class 40 (v)] A frequency modulator comprises an oscillatory circuit Lo Co of an oscillator F coupled to an inductance L and condenser C, each connected in series with the rectifier diagonals AB of rectifier bridges LR1, LR2, respectively, the opposite diagonals being coupled in parallel through decoupling resistances R1, R2, R3 to a resistance R4 across which the modulated signal is applied through a filter L1, C1. The diagonals CD are alternately blocked and rendered conducting as the polarity of the input signal current applied to them reverses and the resistance AB of the conducting bridge varied in accordance with the modulation amplitude so that the effective value of the inductance L or condenser C across the oscillatory circuit varies. R1, R2 are adjustable to control the symmetry of the frequency modulation for peak values of the modulation current, and R1 straightens the modulation curve for low modulation current. C1 trims the value of the inductance L. In a modification (Fig. 6, not shown), resistances R6, R7 and a bias U are connected between the input terminals C, D of the bridges so that a certain modulation current either way is necessary before any frequency deviation takes place.
Patent GB-712486-A (GB)
Title: Improvements in and relating to sewing machines
Inventor: SUMMERTON THOMAS FREDERICK
IPC: D05B35/02
Filed: 1951-04-13
Abstract: 712,486. Sewing-machines. SUMMERTON, T. F. July 14, 1952 '[April 13, 1951], No. 8718/51. Class 112 Grouped machines; frames; Lubricating. Two parallel rows of stitching are produced by two sewing-heads mounted so that at least one is adjustable towards and away from the other, both machines being driven, in any position of adjustment, by a common telescopic drive mechanism. In the apparatus shown, for hemming the opposite edges of a length of material, the two sewing-heads 1, 2 are clamped on a base 7, the head 1 being permanently clamped while the head 2 may be moved along the base, when its clamping means are released, by means of a screw 139. Each machine has a conventional needle and presser-foot, and a loop-taker on a horizontal shaft which is connected by toothed gearing to one half of a telescopic shaft mounted in the base 7. This shaft is driven at one end (the two halves being splined together), and a hand-wheel may be provided on it also. The two parts of the shaft may run in oil wells in the bases of the respective heads 1, 2, each of which may have a dip-stick 60 passing down through its standard. Feeding long lengths of fabric; workguides; folding devices. The material is drawn from a roll mounted low on the front of the supporting table, by a pair of rollers 148, one of which is driven by adjustable friction-ratchet gearing from the shaft in the base 7; the two rollers may be geared together. The pressure between the rollers may be adjusted independently at each end. The finished work is wound on a roller 46 driven from the rollers 148 through a friction clutch 61 and belt 47. The fabric passes from the supply roll to the machine heads between the bars 67 of a tensioning device, and then between a pair of guides 52, adjustable longitudinally, each comprising a plate folded over and having its folded margin progressively folded over to fold the edge of the material. Needles, driving. The needle-bar of each sewing-head is actuated from a rock-shaft in the upper arm of the head oscillated by an eccentric on the lock-taker shaft. An extension of the pivot-pin connecting the needle-driving link to the needle-bar slides in a slot in a fixed member 'to prevent turning of the needle-bar.
Patent GB-1134505-A (GB)
Title: Electron discharge device
IPC: H01J19/00
Filed: 1966-02-28
Abstract: 1,134,505. Electrode materials and processing. SYLVANIA ELECTRIC PRODUCTS Inc. 28 Feb., 1966 [1 March, 1965], No. 8735/66. Heading H1D. A coating of a metal and the oxide of the same metal is applied to a grid electrode in an electron discharge device to reduce the secondary electron emission, this metal being barium, calcium, strontium, caesium, sodium, potassium, lithium or rubidium. A process for forming this coating on a grid electrode involves, firstly, the deposition on the grid, e.g. by spraying, of a suspension which includes a volatile organic binder, and a thermally decomposable compound selected from the peroxides and carbonates of the metals in the group referred to above. For example, the suspension may be of barium peroxide in a binder comprising a mixture of amyl, butyl and propyl acetates. Other suitable binders are nylon, methyl methacrylate, polyvinyl alcohol, or methyl cellulose. The grid is assembled in a glass envelope together with an anode cathode and any other electrodes or structures and the envelope evacuated while simultaneously heating the assembled structure. This heating volatilizes the binder from the suspension on the grid electrode and decomposes the compound to provide a metal and metal oxide coating on the grid, and may also activate the cathode. The coated grid may be the third grid of a pentode. The Specification describes prior art in which a porous or spongy layer of a mixture of carbon and silica is formed on the grid electrode to suppress secondary emission.
Patent GB-1417605-A (GB)
Title: City and or district transport system
IPC: E01B25/00
Filed: 1973-02-22
Abstract: 1417605 Transport systems R BALDELLI 22 Feb 1973 [23 Feb 1972] 8817/73 Heading B7L  A transport system, particularly for city and district transport of passengers, comprises a continuous main travel track C, Fig. 8, running between two terminal stations; halt track sections F associated with intermediate stations and connected to the main track C by shunting track sections having rails 3<SP>1</SP>, 4<SP>1</SP>; and selfpropelled cars, Fig. 2, movable along the various sections of track, each car having first rolling means comprising support wheels 9, 10 and guide wheels 11, 12 to run along the main track C and halt sections F, and second rolling means comprising wheels 15, 16 to run along the shunting rails 3<SP>1</SP>, 4<SP>1</SP>, the wheels 15 and 16 being retracted to the position shown dotted on Fig. 2 when the car is on the main track. As shown on Fig. 1, the main track C and halt sections F comprise L-shaped main rails 1, 2 of which the horizontal limbs A receive the wheels 9, 10 and the vertical limbs B receive the wheels 11, 12, and upper secondary rails 3, 4 which continue as rails 3<SP>1</SP>, 4<SP>1</SP> in the shunting sections. The wheels 15, 16 run on the top horizontal surfaces of the rails 3, 4, 3<SP>1</SP>, 4<SP>1</SP> when extended (preferably by hydraulic control means) and the cars also have upper guide wheels 13, 14 which can run on vertical limbs of the rails 3, 4, 3<SP>1</SP>, 4<SP>1</SP>. The rails 3, 4, 3<SP>1</SP>, 4<SP>1</SP> are above the centre of gravity of each car to enhance stability. In order to direct a car into an intermediate station, its wheels 15, 16 are extended prior to a junction with a shunting section, so that the car follows the rails 3<SP>1</SP>, 4<SP>1</SP> which are upwardly inclined relative to the path of the track C and thus lift the first rolling means clear of this track. If the shunting rails are sloping upwardly of horizontal, the wheels 15, 16 must have their own drive means (separate from the motor M for wheels 9, 10), but if the rails 3<SP>1</SP>, 4<SP>1</SP> follow a slightly descending (or flat) path, as in Fig. 8, the car proceeds due to its own momentum. In each halt section F, various service tracks may be provided which are interconnected by movable switching devices, Figs. 9 and 10 (not shown). The tracks of the system may be mounted on columns 6 as in Fig. 1, or may be ground based.
Patent GB-121904-A (GB)
Title: Improvements in the Manufacture of Jointing Material.
IPC: B29C43/22
Filed: 1917-11-30
Abstract: 121,904. Potter's Asbestos Co., and Stafford, A. E. Nov. 30, 1917. Joint-making pack. ing.-Relates to the continuous manufacture of joint-making material, and consists in applying to one or both faces a surfacing material of finer quality or different colour. The material A, formed from a plastic composition of rubber and asbestos compressed and dried in any suitable manner, such as between endless bands as described in Specification 121,772, receives surfacing material from hoppars e on one or both faces, and passes through calendering rolls E which may be heated to drive off solvent.
Patent GB-379243-A (GB)
Title: A device for facilitating breathing
IPC: A61F5/08
Filed: 1932-03-24
Abstract: 379,243. Respiratory appliances. ECHANOVE, P. A., 29, Licenciads Poza, Bilboa, Spain. March 24, 1932, No. 8861. [Class 81 (ii).] A device for facilitating breathing through the nose comprises a U-shaped member a for example of aluminium, the branches of which, for engagement with the interior side walls of the nose, are somewhat flattened towards their rounded or smooth ends without any seam, rib or other irregularity. Small lobes d, e may be provided for the attachment of a rubber thread or cord, or, as shown, of two wires f, g to be fixed round the ears. Alternatively, a support may extend from the lower part of the U-shaped member, being adapted to be gripped by the mouth or teeth of the wearer.
Patent GB-675407-A (GB)
Title: Improvements in soldering fluxes
IPC: B23K35/36
Filed: 1950-04-11
Abstract: A soldering flux comprises in a non-active vehicle including a wetting agent, lactic acid, and urea, acetamide or ethylene diamide. Suitable fluxes comprise (a) 15-20 per cent by volume of 85 per cent lactic acid, 42.5-40 per cent by volume of alcohol and 42.5-40 per cent by volume of water, 2-6 per cent of urea and .05-0.1 per cent of wetting agent, the proportions of urea and wetting agent being expressed as percentages by weight of the weight of the lactic acid, alcohol and water; (b) 20-40 grams lactic acid, 2-6 grams urea, 0.10 grams wetting agent, 50 grams petrolatum.  The wetting agent may be an aryl alkyl sulphonate.
Patent GB-526889-A (GB)
Title: Improved method of and apparatus for sorting yarn packages according to dimensions
IPC: B07C5/07
Filed: 1939-03-21
Abstract: 526,889. Gauging-apparatus. GUYLER, A. F. March 21, 1939, No. 8936. [Class 106 (ii)] Comprises a method of and apparatus for sorting yarn packages according to size in which the packages are fed to a succession of openings whose widths are controlled by movable elements which are pressed open at successive stages to definite and successively greater sizes, the package below the diameter represented by the opening falling through to a bin. The bobbins 6 are fed to a table 1 rotating about a vertical axle 21 carrying a circular plate 4. The table is provided with holes 2 in which the bobbins rest. Underneath the holes pivoted on horizontal shafts 10 are flaps 3 geared together by quadrants 12 one of which is held by a spring 14 against a stop 16 to keep the flaps open. Underneath the plate 4 are arranged a set of cams 19 which are set at different height by a screw 23 and held in set position by a spring strip 25 engaging a notched head 24. One of the shafts 10 is extended and carries an arm 17 bearing a roller 18. As the table rotates, the rollers 18 engage the cams 19 successively and the flaps are opened to a certain extent determined by the cam. If the diameter of the bobbin owing to the yarn wound thereon is such that the bobbin falls through the opening, it is not carried to the next position and the packages or bobbins are thus sorted in accordance with their diameters and pass along chutes 7 to corresponding bins.
Patent GB-687445-A (GB)
Title: Improvements in automatic railway couplers
IPC: B61G3/04
Filed: 1951-04-17
Abstract: 687,445. Vehicle couplings. AMERICAN STEEL FOUNDRIES. April 17, 1951 [May 4, 1950], No. 8974/51. Class 103 (v). A Janney-type coupling has a knuckle tail 7 retained in the locked position by a lock 13 which can be raised by an operating lever 16 to which it is connected by a link 19 forming a lost-motion connection. A lever 41 pivoted at 42 engages the upper surface of the lock 13 and one side of the knuckle-tail 7 to form a knuckle-thrower.
Patent GB-1516042-A (GB)
Title: Burner apparatus
IPC: F23N5/00
Filed: 1976-03-05
Abstract: A solid-state electrolytic oxygen detector (10) is arranged in the combustion space (7) of the burner (6) in the region of the flame and transmits its measured values representing the carbon monoxide content of the combustion products to a control circuit (3, 11, 12) which adjusts the fuel/air quantity ratio for the burner (6). As a result, the delay between changing the state of the combustion gases and the detection of this state is virtually eliminated. <IMAGE>
Patent GB-1070096-A (GB)
Title: Improvements in or relating to four wheel drive vehicles
Inventor: BROWN DAVID JOHN BOWES
IPC: B60K17/28
Filed: 1965-03-03
Abstract: 1,070,096. Toothed gearing. NORTHROP CONTRACTORS Ltd. March 3, 1966 [March 3, 1965], No. 9037/65. Heading F2Q. A transfer gear-box for a vehicle comprises a casing 9 containing a primary power take-off shaft 10, adapted to be connected to an output shaft driven from the engine at crank-shaft speed, a primary main gear-box output drive shaft 11, adapted to be connected to the output shaft of the engine gear-box, and offset secondary power take-off shaft 15 and offset secondary gear-box output shaft 18. The take-off shafts 10, 17 are connected by gears 12, 13, 14 and the gear-box output shafts 11, 18 are connected by gears 16, 17, 19. The shaft 18 is adapted to drive the rear axle of the vehicle and may be connected to a shaft 26 to drive the front axle by operation of a handle 27 to engage a clutch 25 to connect shaft 26 with a gear 20 meshing gear 19. . . .
Patent GB-703175-A (GB)
Title: Improvements in or relating to the positioning of partitions in office furniture drawers and like containers
IPC: A47B88/20
Filed: 1951-04-19
Abstract: 703,175. Filing papers. ABBOTT, S. N. April 24, 1952 [April 19, 19511, No. 9119/51. Class 146(1) [Also in Group XVII] Fittings for adjustably mounting partitions d in drawers &c. each comprise a channelled portion a and a foot which engages in a groove c in the drawer side. The foot has spikes a<SP>4</SP> for locating the fitting and a portion a<SP>1</SP> of the foot is bent out of alignment with the part a causing the part a to be spring biased towards the partition. The partitions are slidable in the parts a.
Patent GB-724718-A (GB)
Title: Improvements in nuts with captive lock washers
IPC: F16B39/26
Filed: 1953-04-02
Abstract: 724,718. Washers ; locking nuts. ILLINOIS TOOL WORKS. April 2, 1953 [May 8, 1952], No. 9224/53. Class 89 (1). A fastener unit comprises a nut 12, Fig. 2, and captive lock washer 14, the washer having an annular part 32 with an outer peripheral flange 38 for engaging a work-piece 40 and an inner peripheral flange 36 engaging a groove 24a in the nut, the inner wall 28 of the groove being flared out to hold the washer captive. The flange 36, Fig. 5, has projections 44 co-operating with projections 42 on one groove wall of the nut, e.g., the outer wall 26, to resist relative rotation of nut and washer from the tightened position. The projections may be so shaped as to allow rotation in one direction but not the other. The resilience of part 32 causes the projections to engage more strongly as the nut is tightened and also provides a spring-washer effect. Specification 673,302 is referred to.
Patent GB-487087-A (GB)
Title: Process for the conversion of alkali metal acetates into bicarbonates
IPC: C01D7/00
Filed: 1937-04-01
Abstract: Alkali metal acetates are converted into the corresponding bicarbonates by the action of carbonic anhydride upon a concentrated aqueous solution of the acetate in the presence of acetone at a temperature not exceeding 10 DEG  C.  When employing sodium acetate it is preferable to have some potassium acetate also present.  After the separation of the precipitated solid alkali bicarbonate, the acid alkali acetate simultaneously formed can be heated to liberate acetic acid.  Alternatively, the acid alkali acetate solution may be neutralized with lead hydroxide to produce lead acetate which is treated with alkali chloride to precipitate lead chloride and reconstitute the initial alkali acetate solution.  The precipitation of the lead chloride may be assisted by the addition of the acetone necessary for the main reaction.  The alkali chloride should be added in solid form and if only solutions thereof are available, the necessary solid salt may be precipitated therefrom, by the addition of acetone which can then be recovered by distillation and used in the main reaction.  The lead chloride solution may be treated with ammonia to reform the lead hydroxide and the resulting concentrated solution of ammonium chloride may be treated with lime to re-form the ammonia.  An example is given.ALSO:Alkali metal acetates are converted into the corresponding bicarbonates by the action of carbonic anhydride upon a concentrated aqueous solution of the acetate in the presence of acetone at a temperature not exceeding 10 DEG  C., the acid alkali acetate simultaneously formed being heated to liberate acetic acid after the separation of the precipitated solid bicarbonate.
Patent GB-674174-A (GB)
Title: Improvements in and relating to electrical devices for measuring mechanical displacements
Inventor: REASON RICHARD EDMUND
IPC: G01B7/34
Filed: 1949-04-05
Abstract: 674,174. Bridge measurements. TAYLOR, TAYLOR & HOBSON, Ltd. July 4, 1950 [April 5, 1949], No. 9257/49. Class 37. [Also in Group XXXVIII] In a bridge circuit for measuring mechanical displacements using a reactive detector having an air-gap varied according to the displacements to be measured connected in one of the bridge arms, the bridge output signal resulting from the detector displacement is combined either internally or externally of the bridge with a correcting signal of such magnitude and phase that the resultant signal over the working range has a substantially linear characteristic. As shown, Fig. 1, the bridge is energized from a source I which also supplies through the secondary S<SP>1</SP> the compensating potential N of adjustable magnitude and phase by virtue of the resistor condenser network R6, R7 and C or C<SP>1</SP>. This potential is connected in series with the bridge output O which varies according to the displacement of the detector 1 from a zero position, the combined linear output OP operating an indicator or recorder. The bridge output may be fed through a transformer, the compensating potential being series-connected with the secondary, Fig. 2 (not shown). Fig. 3 shows an A.C. bridge which is balanced at zero displacement of the detector 1 with the switches SW11, SW12 open. These switches are then closed and introduce the elements R8, C2 into the bridge circuit to produce the compensating voltage in the output circuit at 32 which is combined with the out-of-balance voltage due to subsequent displacement of the detector. Figs. 4, 5 (not shown), disclose modifications of the Fig. 3 arrangement catering for various magnification ranges in which manually set selector switches switch in or out resistors to vary both the sensitivity and the compensating voltage as required. Specification 638,138, [Group XXXVIII], is referred to.
Patent GB-682953-A (GB)
Title: Improvements in and relating to wrist-watches
IPC: G04B37/14
Filed: 1949-04-05
Abstract: 682,953. Attaching articles to the person. RODANET, C. H. H. April 5, 1949, No. 9261/49. Class 43. [Also in Group XVIII] In a wrist-watch the watch case 1, Figs. and 5, snaps into an outer cover 2 to which the strap 4 is attached by securing pins 7. The cover 2 has a dial viewing opening 3 and may be made of precious metal. The sides of the cover 2 are curved at 9.
Patent GB-928828-A (GB)
Title: Improvements in or relating to inductance coils
IPC: B24C5/08
Filed: 1961-03-14
Abstract: 928,828. Inductors. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 14, 1961 [March 16, 1960], No. 9294/61. Class 38 (2). An inductor e.g. a Pupin coil or filter coil has a ferrite core built up of two parts, stacked in an axial direction, each part comprising a cross-shaped or butterfly-shaped yoke 3 (Figs. 1, 5), a centre limb part 1 to carry a coil on former 7 and four or two outer limb parts 5 respectively. The core is enclosed in a box-like metallic housing 9, 11, 13 (Fig. 2) and an undulated spring washer 23 presses the core halves together. An adjustable control pin 21 is arranged in a threaded central axial bore of centre limb 1. Soldering tags 15 on the coil former extend through an aperture in housing part 13 and earthing and securing pins 31 may be attached to the housing.