baber/WOPTO huggingface dataset:
Patent GB-524808-A (GB)
Title: Improvements in fluid apparatus for automatic control of a variable condition
IPC: G05D23/00
Filed: 1939-02-03
Abstract: 524,808. Fluid-pressure servomotor systems. SIGMA INSTRUMENT CO., Ltd., STEWART, A. M., JACK, H. M., and WIDGERY, M. (Representatives of STEWART, J. G.). Feb. 3, 1939, No. 3682. [Class 135] In apparatus for obtaining an automatic control of a variable condition, such as temperature or the calorific value of a gas, wherein a measuring-instrument which gives the value of the controlled condition is connected to the relay valve of a fluid-pressure servomotor to operate a valve controlling the flow of gas &c. means are provided for regulating the pressure of the relay fluid so as to reduce hunting. Fig. 1 shows the invention applied to means for controlling the calorific value of a gas, in which gas of high calorific value from a pipe 11 is mixed with gas of low calorific value from a pipe 10 controlled by a valve 12 connected by linkwork 14, 15, 16, 19 to a bell servomotor 20 seated at its open lower end by liquid in a container 22, the relay fluid being supplied to the upper end of the bell by a pipe 23. This fluid may consist of town gas supplied at 26 and controlled by the relay valve device 25 connected by a link 27 to a measuring-instrument 28 for the calorific value of the mixed gas flowing in the conduit 13. The relay fluid passes from the valve device 25 through a constricted coil 24 to the pipe 23. The relay valve 32, Fig. 2, is actuated from the connection 27 by a lever 33 fulcrumed on a main lever 34, which is pivoted at 35, weighted at 43, 45, and connected at 36 to a bell 37 to which the relay fluid is admitted by a pipe 40. The valve 32 is shown in its normal position, but an increase in calorific value of the gas supply causes the link 27 to be raised, and the valve to be lowered, connecting the supply of relay fluid at 26 to the pipe 40 and to a further connection 41 leading to the coil 24 and servomotor bell 20, whereby the valve 12 is opened to increase the supply of low-power gas. The relay fluid also lifts the bell 37 and lever 34, thereby raising the fulcrum of the lever 33 and returning the valve 32. The more the bell 37 is raised, the greater is the resistance offered by the movement of the depending weighted arm 45. The servomotor bell 20 may be replaced by a piston or diaphragm movable in either direction from a central zero position.
Patent GB-607486-A (GB)
Title: Improvements in or relating to electrical conductors and condensers
IPC: H01B3/18
Filed: 1946-02-06
Abstract: An electrical component has at least part thereof treated with an insulating material which consists of or includes an amide of the formula R1-CO-NH-R2-R3, where R1 is a saturated or unsaturated aliphatic radical of at least 8 C atoms, R2 is an alkylene or arylene radical, and R3 is hydrogen when R2 is arylene, or the group -NH-CO-R4 when R2 is alkylene or arylene, R4 being a saturated or unsaturated aliphatic radical having at least 8 C atoms or an aryl or heterocyclic radical.  Such amides may range in melting point from 50-300 DEG  C.  Stearic anilide, made by refluxing aniline and stearic acid, stearic a - or b -naphthalide, by heating a - or b -naphthylamine and stearic acid, oleic naphthalide, similarly from oleic acid, di-stearic ethylene diamide, by heating stearic acid and ethylene diamine, di-lauric, stearic-oleic, lauric-naphthenic, stearic-lauric, benzoic-stearic, and stearic-naphthenic ethylene diamides, made similarly from the appropriate acids and the diamine, di-lauric, and benzoic-stearic p-phenylene diamide, lauric naphthalide, stearic o-chloranilide, di-stearic p-phenylene diamide, oleic-lauric ethylene diamide, naphthenic-stearic benzidide, and di-palmitic m-phenylene diamide are specified amides.  They may be used with asphalts or waxes. Their use is described for filling the cavities in a porcelain block carrying a switch mechanism to insulate the fixing screws, for coating or impregnating paper or other fibrous material forming dielectric sheets, for example in a condenser, and for impregnating cotton thread or asbestos fibre or spraying fabric sheaths used as an intermediate coating in a multi-core cable. Specification 497,001, [Group IV], is referred to.
Patent GB-103382-A (GB)
Title: Improvements relating to Rifle Periscopes.
Inventor: DUERR EDGAR
IPC: F41A19/09
Filed: 1916-03-13
Abstract: 103,382. Duerr, E. March 13, 1916. Sighting-accessories; stocks; firing-appliances.-Consists of a hyposcope. attachment c o m - prising a stirrup a secured to the rear part of the stock by a crosspiece c and clamping-wedge d, and carrying mirrors j, k, handgrips f, and an auxiliary trigger g connected to the main trigger by a link i. The mirrors j, k are carried by swinging links or frames m
Patent GB-633257-A (GB)
Title: Improvements in or relating to woven webbing
IPC: A47C27/04
Filed: 1948-02-09
Abstract: 633,257. Woven webbing. BULLEY, J. R. Feb. 9, 1948, No. 3742. Drawing to Specification. [Class 142 (iv)] Webbing for upholstery has a warp of twisted paper yarn and weft of cotton or other flexible spun fibrous yarn ; the selvedge warp threads may be cotton yarn stronger'than the weft. The weave may be a 2/2 twill, modified at the selvedge by lifting the end warp thread oppositely to the next one.
Patent GB-621931-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42C1/04
Filed: 1947-02-07
Abstract: 621,931. Percussion fuzes. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. Feb. 7, 1947, No. 3752. Convention date, Dec. 7, 1946. [Class 9 (i)] A percussion fuze consists of a fuze body 1 housing a striker 4 and detonator 5, which are separated by a spring 8, the body being adapted to slide in a guide 2 mounted in front of the projectile, and is characterized in that the percussion head 9 is rigid with the body 1 and is held in a position extending in front of the guide 2 by a member 10 which yields on impact, and in that the head is formed at its front with sharp angles 15 for cutting into targets. The guide 2 shown is crimped at 22, whereby it is held in place by crimping of a collar 21 formed on the projectile jacket 3. The guide is also formed with a projection 13 which co-operates with a ring 11 partly housed in a recess of the body 1 to prevent forward movement of the body. A further stop 13a on the guide prevents the fuze body from moving into the interior of the projectile in the event of an unforseen shock. When the projectile strikes the target obliquely the sharp angles 15 cut into the target, and the head 9 is driven inwards, shearing the pin or pins 10, and at the same time the detonator moves by inertia towards the striker 4. A cap may be used to protect'the fuze during transport against shocks. The Specification as open to inspection under Sect. 91 describes also modifications in which the head is not formed with such sharp angles. A cap held in place by plastic material is also described. In one modification a sleeve sets back by inertia on firing to compress a spring and at the same time to become peripherally wedged into engagement with the detonator. This subject-matter does not appear in the Specification as accepted.
Patent GB-453996-A (GB)
Title: Improvements in carburetting in internal combustion engines
IPC: F02M9/133
Filed: 1936-02-07
Abstract: 453,996. Surface carburetters. MULLER, E. L., 215, Kurf³rstendamm, Berlin. Feb. 7, 1936, No. 3806. Convention date, March 30, 1935. (Class 7 (iii)] Air for combustion passes over the exposed surface of a porous body to the opposite side of which fuel is supplied by a motordriven metering pump. Fuel is pumped through a channel 5 and annular porous body 4 to be swept therefrom by air passing between the body and a pear-shaped throttle valve 10. Nuts 14 prevent the valve from closing beyond an idling position and are carried by a stem 12 pivoted to one end of a lever 21 connected at its other end to a piston 18, the underside of which is exposed to engine suction to lessen the effort required to open the throttle valve 10.
Patent GB-621011-A (GB)
Title: Improvements relating to magnetic devices
IPC: H01F7/122
Filed: 1947-02-10
Abstract: 621,011. Electromagnets. ENGLISH ELEC. TRIC CO., Ltd., HASSELL, S., and ROBINSON, A. A. Feb. 10, 1947, No. 3889. [Class 35] [Also in Group XXXVII] An electromagnet, e.g. for relays, comprises a permanent or electromagnet 10 with an annular air gap, in which is situated an operating coil 13, and an armature 14 capable of bridging the air gap when drawn into its attracted position by a pulse of current in the operating coil and of being released when a pulse of reverse polarity is applied to the operating coil. As shown, the disc-shaped armature 14 is held in a stable position against a non-magnetic abutment 17 by a spring 15 which is overcome when a pulse of current in the coil 13 diverts the magnet's flux towards the armature. The armature then moves towards the magnet and takes up a second stable position against the pole faces. A pulse of current in the reverse direction deflects the flux away from the armature and so releases it and allows it to take up its original position. In a modification, Fig. 3 (not shown), a pair of oppositely-disposed alternately-acting electromagnets act on a single armature and in further modifications, Figs. 4 and 5 (not shown), extending flanges are used on either of the circular poles to decrease the operating current. The coil 13 may be carried on the armature.
Patent GB-1517320-A (GB)
Title: Signal processing system
IPC: B60T8/82
Filed: 1975-11-04
Abstract: 1517320 Anti-skid braking systems WAGNER ELECTRIC CORP 4 Nov 1975 [3 Feb 1975] 03982/78 Divided out of 1517318 Heading F2F The subject matter is the same as that of Specification 1,517,318 but the claims relate to a signal processing system including: (a) a first circuit in which a first variable-width pulse is generated when the differential of an input signal (e.g. wheel velocity) exceeds a threshold value; and (b) a second circuit in which a second variable-width signal is generated when the input signal then falls below a second threshold which varies with the input signal and its differential when the differential is negative (e.g. a vehicle wheel is decelerating) and with the differential of the input when the differential is positive (e.g. when the wheel is accelerating).
Patent GB-497053-A (GB)
Title: Improvements in and relating to centrifuges
IPC: B04B1/02
Filed: 1937-03-10
Abstract: 497,053. Centrifugal separators. ELKINGTON, H. D. (Erkensator Ges.) March 10, 1937, No. 3996/38. Divided out of 496,998. [Class 23] A centrifuge for the purification of paperpulp and the like has two drums mounted one within the other and fed consecutively ; one or each drum is provided with inwardly projecting rings for assisting the formation of cushions of fibres in which the heavy impurities are embedded. The distance between the drum walls increases in the upward direction ; in the form shown in Fig. 1, the inner drum 2 has retaining rings 3, 4, and the diameter of the part between these rings is less than that of the lower part. The outer drum 1 also has retaining rings 5, 6 to hold the deposited fibres, and a discharge passage for the purified pulp is formed between the rings 7, 8 at the top of the drum. The light impurities are held by the ring 8. The lower part of the ring 7 is cylindrical and its upper part inclines inwards towards the axis of the machine. The lower part of the ring 8 inclines outwards and upwards towards the ring 7 as shown, and its upper part is parallel to the upper part of the ring 7. The lower part of the discharge channel thus has a conical cross section. In a modification, the inner drum has a straight wall, while the diameter of the part of the outer drum between the rings 5, 6 is greater than that of the lower part. In a further modification both drums are of conical form and diverge progressively from each other.
Patent GB-136383-A (GB)
Title: Improvements in or relating to Change Speed Mechanism.
Inventor: BOERNER ARNO
IPC: F16H3/72
Filed: 1919-02-18
Abstract: 136,383. Boerner, A. Feb. 18, 1919. Variable - speed epicyclic gearing.- In a variable-speed and reversing gearing applicable to motor cars and cycles, aeroplanes, ship propulsion, machine tools, &c., the driving and driven shafts are in line with an intermediate shaft, and two epicyclic gears are arranged in series for transmitting the motions. The driving and driven shafts 1, 5 each carry an internally toothed wheel 4, 8 gearing, through planet-pinions carried in a frame, with a wheel 11, 12 on the intermediate shaft 9. One member 14 of the frame, carrying the planetpinions 15, 16 gearing with the wheels 4, 11, has eccentrics 17, 18 secured thereto. These eccentrics operate the plungers of pumps, the cylinders of which are in communication by means of bypasses 25 controlled by throttle valves 27 operated by a rod 38. By operating the valves, the frame 14 can be held stationary, or an adjustable amount of slip allowed, to drive the shaft 9 at a variable speed. In a modification, the frame member 14 is provided with projections, and may be moved along the shaft 9 to engage with projections on the pinions 15, 16 so as to obtain a solid drive. The member 30 of the frame carrying the planet-pinions 32. 33 engaging the wheels 8, 12 is provided with projections, and is slidable along the shaft 9 so that it can be brought into engagement either with projections 45, 46 and locked to the casing 37, or with projections on the planet pinions so as to obtain a solid drive. By controlling the two gears, a. variable speed in either direction can be imparted to the shaft 5.
Patent GB-607653-A (GB)
Title: Improvements in or relating to weighing machines
IPC: G01G3/02
Filed: 1946-02-11
Abstract: 607,653. Weighing - apparatus. AUTOMATIC SCALE CO., Ltd., and BLICK, E. L. Feb. 11, 1946, No. 4131. [Class 143] The load arm a of a spring balance i s connected to a steel band c which passes over a drum d to a terminal connection with the spring resistant j of the balance. The drum d rotates on ball-bearings f, has a connection g with the steel band c and carries a weightindicating pointer l.
Patent GB-430234-A (GB)
Title: Improvements in or relating to processes for the purification of glycols or derivatives thereof
IPC: C07C29/76
Filed: 1935-02-08
Abstract: Glycols and their ethers are freed from chlorine and chlorine compounds by treatment in the vapour phase with mercuric or silver oxide on a carrier such as pumice or asbestos.  Preferably the vaporization of the glycol or glycol ether is effected at a low pressure such as 20 mm. in the case of ethylene glycol.  Other glycols and ethers mentioned are diethylene glycol, ethylene glycol monomethyl ether and ethylene glycol monoethyl ether.  When the purifying agent is exhausted it may be regenerated by soaking in 7 per cent caustic soda solution and then heating for instance to 550 DEG  C. leaching with water and drying at 100 DEG  C.
Patent GB-422660-A (GB)
Title: Mop wringing device
IPC: A47L13/59
Filed: 1934-02-08
Abstract: 422,660. Wringing mops. PAVEK, E., 2231, 3rd Street North, Minneapolis, Minnesota, U.S.A. Feb. 8, 1934, No. 4206. [Class 19] A pair of pivoted plates 18a, 27, Fig. 1, with side plates 18b forming a socket are mounted on a U-shaped framework 11 engaging the edge of a pail and means 36 are provided for swinging the one plate 18a relatively to the frame and towards the second plate 27 to squeeze a mop therebetween. Various modifications are described. A wet mop is placed in the pocket formed by plates 18a, 18b, 27 and the handle 36 is engaged in a padded clip 25 and moved towards the plate 27. The plate 18a is moved to the left and the plate 27 is engaged by rollers 33 on the end of pivoted levers 30 which increases the squeezing movement as the plates approach one another. Water from the mop passes through holes 18d &c. into a drain pan 35 and so back to the pail. The whole wringing device is to prevent the operator bending over a hot pail. When the handle 36 is swung back, spring means press the plate 27 back to normal and the mop can be removed. Rollers 33 can be adjusted by placing bolts in different holes 12c. In a modification, Fig. 6, a mop is placed between plates 45, 43a and sides 40c. The handle 36 is moved as before and the plate 45 is moved against rollers 49 mounted in bars 46 adjustable in slots 40d so as to cause the closer approach of the plates or a greater leverage in the movement of the plate 45. In another modification, Fig. 10, a handle is passed between an adjustable roller 371 and a member 31<1> to operate a plate 30<1> pivoted at 29<1> towards a second pivoted plate 28<1>. The pressure of a mop between the plates moves a pivot 251 to the left in a slot 28a and rollers 40<1> will be drawn along a cam track 28c<1>. In a further modification, Fig. 20, a pail 201 is shown with a partition 20a<1> to support the frame of the wringer. A mop is squeezed between plates 631 and 55e<1>. The plate 63<1> swings about the pivot 65<1> while bars 59<1>, 571 act as a toggle with increasing leverage on the plate 631.
Patent GB-216180-A (GB)
Title: Improvements in sports coats and similar garments
IPC: A41D27/10
Filed: 1923-02-13
Abstract: 216,180. Holmes, J., and Lee, R. Feb. 13, 1923. Coats; jackets.-In a coat or jacket of the type having a pleat at the armhole controlled by elastic bands, instead of forming the pleat in the material of the coat itself two separate crescent shaped pieces are sewn together and inserted in the armhole. The crescent shaped pieces 1, 4 are sewn respectively to the sleeve and to the body of the coat. The pieces are controlled by elastic bands 2 passing across the coat and connecting the pleats together, and by elastic bands 3 extending downwardly. The pleat extends at the back of the coat between the shoulder seam and the front arm pitch of the sleeve.
Patent GB-939138-A (GB)
Title: Multiple seating
IPC: A47C17/02
Filed: 1962-02-05
Abstract: 939,138. Seats &c. PRESTIGE FURNITURE CORPORATION. Feb. 5, 1962 [Feb. 23, 1961], No. 4280/62. Classes 52 (2) and 52 (4). Sofa seat frames are made from two end sections 5 each having a hollow side and back portion, which back portions are connected by one or more telescoping back inserts 14. The end sections 5 are made by splitting a single chair frame in two and additional back inserts may be made by splitting the insert 14 of Fig. 4 in two. The end sections 5 and inserts 14 are made from two moulded fibre or synthetic resinous preforms stapled or stuck together along the coinciding peripheries to form a hollow side and back and laminated bottom, which when split in half provides apertures 27 into which the peripheries of other units may be telescoped. Elastic webs 133 are stretched across the seat portion to support cushions. The end sections 5 and back inserts 14 may be upholstered. Hollow arm rests 76 with or without wings 77 may be clipped over a rib 73 on the side of the end portion (Fig. 11). A metal leg frame 31, 130 is disposed in recesses formed in the laminated bottom of the end sections 5. Metal braces 32, 33 are fixed to the leg frame 31 and fit into the hollow of the back insert 4.
Patent GB-698875-A (GB)
Title: Improvements in or relating to metal vapour electric discharge tubes
IPC: H01J13/02
Filed: 1950-02-20
Abstract: 698,875. Metal-vapour discharge apparatus. DELANY, B. P., and COPELAND, P. L. Feb. 20, 1950, No. 4302/50..Class 39(i) A discharge tube having a liquid cathode is provided with a solid supplementary cathode arranged above and connected to the liquid cathode to enlarge the active cathode area whilst constricting the discharge on to the surface of the liquid cathode. A tube 1, Fig. 1, comprises a tantalum or nickel anode 2, a mercury or caesium cathode 3 and a frustoconical tantalum supplementary cathode 5 which facilitates the production of a glow discharge and the subsequent formation of the cathode spot; it is connected through the lead-in support 4 to the cathode 3. A clearance 6 may be provided between the member 5 and the tube or it may be in contact therewith. In another form, a glass funnel or flared tube is sealed at its upper end to the tube so that its lower end dips into the liquid cathode and is 'coated internally with tungsten or silicon; the lower end of the flared tube may be flattened. In a further form, a straight or flared glass tube 12, Fig. 3, is sealed to the tube and carries a copper perforated plate cathode 16 connected to the cathode 3 by metal wires 17a.
Patent GB-372781-A (GB)
Title: Process for the removal of arsenic from sulphur
IPC: C01B17/02
Filed: 1931-02-11
Abstract: Sulphur is freed from arsenic by treating it in the vapour phase with a molten reagent consisting initially of an alkali sulphide or polysulphide or both, or of compounds, such as alkali hydroxides or carbonates, which will react with the sulphur to form the sulphides. The sulphur vapour may be contained in gases derived in the formation of sulphur, e.g. from pyrites or sulphur dioxide, or may be produced by the distillation of crude sulphur. Preferably, the sulphur vapour or the gas containing it is bubbled through the molten sulphide or polysulphide at a temperature of 250 DEG  C. or over, or the gases may be passed over inert material impregnated or irrigated with the sulphide.  In an example, sulphur having 5000 parts of arsenic per million contained only 5 parts after treatment.  According to the Provisional Specification, crude sulphur and an alkali metal sulphide may be distilled to obtain pure sulphur vapour.
Patent GB-708473-A (GB)
Title: Improvements in or relating to calculating apparatus
IPC: G06G1/04
Filed: 1952-02-20
Abstract: 708,473. Calculating-apparatus. SOAR, G. B. Feb. 4, 1953 [Feb. 20, 1952], No. 4465/52. Class 106 (1) Calculating-apparatus comprises at least three superposed plates rotatable about a common pivot and each bearing at least one peripheral scale and one or more radial cursors rotatable about the same pivot, the plates being so connected that rotation of one relative to another produces rotation of one or more other plates. The apparatus shown is for making calculations relating to woven wire mesh. Rotatable on a boss 21 fast to a base 14 integral with a casing 33 are discs 15, 16, 17, each formed with a cam slot 25, a stud 27 passing through all the slots. Alternatively, the top and bottom discs may have cam grooves to receive the ends of the stud. The apparatus is set by a knob 29 fast with the disc 16. A transparent disc 18, rotatable by means of an upstanding flange 35, is located on shoulders in the casing 33 by a split ring 34. The base disc 14 carries scales of aperture size in inches and millimetres, a scale of the ratio of aperture to wire diameter and a scale of percentage screening area. The disc 15 has scales of wire diameter in inches, millimetres and S.W.G. and a cursor line 36 for co-operation with the ratio scales on the base disc. The discs 16 and 17 have scales of relative weight and meshes per inch respectively. Marked on the disc 18 is a main cursor line 19, auxiliary lines 20 for various other standard inches and further lines 20a corresponding to the different weights of materials employed. When the discs are set according to any two of the independent variables, the other values may be read. In another embodiment, only three discs are used and the cursor disc is replaced by an arm. In this case, the middle disc carries a peripheral cursor having a knob by which the disc may be set. According to the Provisional Specification, the stud coupling the discs may carry rotatable sleeves to reduce friction.