baber/WOPTO huggingface dataset:
Patent GB-734583-A (GB)
Title: Method of making glass-metal seals
IPC: H01J5/40
Filed: 1952-02-18
Abstract: 734,583. Glass-metal seals. ELECTRICAL INDUSTRIES, Inc. Feb. 18, 1952 [March 17, 1951], No. 4239/52. Class 36. A pressure-tight seal is made by assembling an apertured metal member 13 having a high coefficient of expansion, at least one' metal lead-in member 17 having a substantially lower coefficient of expansion within the aperture 14, and a mass of vitreous material 15 which separates the metal members, and has a coefficient of expansion substantially less than that of member 13 and substantially greater than that of members 17, then fusing the parts together by heating the assembly to melt the vitreous material and causing it to fill the space between the metal members, cooling the assembly to below the melting point of the vitreous material and then cooling rapidly to ambient temperature. The member 13 may have a coefficient of expansion of between 110 X 10 <-7> and 178 x 10<-7>, and may consist of screw machine steel or beryllium. copper. The members 17 may be of a ferrous-base alloy having a coefficient of expansion between 60 x 10 <-7> and 97 x 10 <-7>, or of cold-rolled steel having a coefficient of expansion of 125 X 10 <-> <7>. The member 15 may be of lead- or lime-glass. Prior to sealing the metal members are degreased, and, except when of a copper alloy, they may be fired in wet hydrogen to decarbonize the surfaces. When steel is used the surfaces are oxidized or coated with an electrolytic deposit of copper. The parts are assembled in a carbon jig and heated in a neutral atmosphere to fuse the glass. Specification 604,248 is referred to.
Patent GB-1407574-A (GB)
Title: Variable displacement fluid transducer
IPC: F03C1/28
Filed: 1974-01-30
Abstract: 1407574 Reciprocating pumps and motors H SCHOTTLER 30 Jan 1974 [12 Feb 1973] 04292/74 Heading F1A [Also in Division F2] A pump or motor, e.g. for a hydrostatic transmission, comprises a rotary cylinder block 30 with pairs of radial cylinders 32, 34 connected by axial passages 31 and having ball pistons 36, 38 engaging multi-lobed cam rings 50, 60 which are angularly adjustable relative to one another to vary the displacement from a maximum, in which the pistons of each pair are in phase, and zero, in which the pistons are 180 degrees put of phase, flow to and from the cylinders being controlled by a stationary pintle valve 40, as shown, or by a face valve, Fig. 3 (not shown), comprising a non- rotatable, ported valve-member engaging a ported face of the cylinder block. Relative movement of the cam rings in opposite directions is effected by a handle 74 acting via a gear 70 engaging ring gears 66, 68 keyed to the cam rings. In Figs. 3 and 3A (not shown), hydraulic balancing of the cylinder block (130) between the ported valve-member (140) and a ported housing face is effected by grooves (117a, 117b), the valve-member being biased into engagement with the block by a spring (143) and pistons (180). In a hydrostatic transmission using a pump and a motor with face valves, Fig. 5 (not shown), the ported valve-members are biased against their respective blocks by a spring (143A) and apertured pistons (180A) acting between the valve-members. An alternative hydrostatic transmission, Fig. 6 (not shown), has a motor with a single set of radial ball pistons (438) engaging a single, fixed cam ring (450).
Patent GB-285252-A (GB)
Title: Domestic cold storage cupboard
IPC: F25D3/04
Filed: 1927-02-16
Abstract: 285,252. Bishop, H. A., and Dorning, C. H. Feb. 16, 1927. Refrigerators, domestic and like. - The food compartment is surmounted by an ice box which communicates through tubes 11 with a drain tank 8, the ice box and the tank being provided with openings to allow the circulation of air through the food compartment.
Patent GB-664348-A (GB)
Title: Improvements in pressure regulating means for aircraft cabins
IPC: B64D13/02
Filed: 1948-02-13
Abstract: 664,348. Fluid-pressure servomotor control systems; valves. GARRETT CORPORATION. Feb. 13, 1948 [Jan. 10, 1947], No. 4317/48. Class 135. Pressure regulating means for aircraft cabins comprises an airflow duct 10, a valve 11 for regulating the flow in the duct under the control of mechanism responsive to the air flow, and control means 41 responsive at least to the pressure outside the cabin for modifying the action of the said mechanism so as to control the cabin pressure. As shown, a butterfly valve 11 is actuated through rack and pinion mechanism 15, 21 by a spring-loaded diaphragm 22, chambers 37, 38 on opposite sides of which are connected to the inlet and throat respectively of a venturi 14. A check valve 13t opens to admit air at ram pressure from a passage 13 for ventilation purposes when pressurisation is not required. The chamber 38 communicates with the throat of the venturi through a conduit 16 and through two valves 27, 30 arranged in parallel. The valve 27 is normally closed and limits the pressure differential between the chamber 38 and the throat of the venturi. The valve 30 also regulates this pressure differential and is actuated by the mechanism 41 which comprises a diaphragm 31 having a chamber 42 on its upper side exposed to a pressure which is substantially the pressure in the cabin 9 by means of a conduit 17 leading to a pressure orifice 36, and a chamber 43 on its lower side exposed to ambient atmospheric pressure through a port or ports 46. The diaphragm 31 is connected to a spring-loaded evacuated metallic bellows 32 of substantially equal effective area, the latter being supported on a cage 34 having an internal flange 34a to limit the expansion of the bellows as the altitude increases, and a rib 34<SP>1</SP> pressed against a flange 45 by a spring 35 until the pressure in the chamber 42 overcomes the spring. The cage 34 is guided by a pin 34b. Specification 521,623 is referred to.
Patent GB-367551-A (GB)
Title: Improvements in and connected with trimming appliances for hedges and the like
IPC: A01G3/04
Filed: 1931-02-11
Abstract: 367,551. Hedge-cutting machines. HOLE, E. E., Mill Road, Burgess Hill, and MARSH, G. D., Clapwater House, Fletching, near Uckfield, both in Sussex. Feb. 11, 1931, No. 4318. [Class 6 (ii).] A hedge-trimming machine comprises a motor 15 mounted on a carriage 17 and adapted to drive a cutting device by a flexible shaft 3. The shaft is connected to a spindle 6 mounted within a rigid tubular handle 3a supported on a triangular plate 1. This plate carries prongs 14 having recesses wherein slides a reciprocating cutter plate 11 which is formed with V-shaped cutting edges 11a, the apices whereof are spaced at intervals corresponding to the prongs. The plate 1 is disposed transversely with respect to the outer end of the flexible shaft and in a plane substantially parallel to the axis of the shaft, and the prongs 14 are slotted substantially diametrically for the greater portion of their length so as to accommodate the cutting edges 11a of the reciprocating plate 11 which on one side bears upon the fixed plate 1. The cutter plate 11 is slotted at 12 and reciprocates about guide screws 13. A cam 4 is mounted on and rotated by the spindle 6 and reciprocates the cutter by engaging in a guide slot 9 in an upstanding projection 10 thereon. The flexible shaft is coupled by a universal joint to the main shaft of the motor.
Patent GB-823166-A (GB)
Title: Improvements in or relating to bed quilts
Inventor: SLATER THOMAS
IPC: A47G9/02
Filed: 1957-02-08
Abstract: 823,166. Quilts. SLATER (QUILTS) Ltd., T., and EVERCHARM Ltd. Jan. 9, 1958 [Feb. 8, 1957], No. 4323/57. Class 142(4) A quilt has a panel 11 attached to it by gussets 12 along the two sides and one end, forming a box-like sheath to enclose the mattress and bed clothes; a zip fastener 18 is provided in one side gusset. Alternatively, the fastener may extend completely round the gussets so that the quilt can be detached for making the bed, the panel 11 remaining permanently under the mattress. The quilt may have a skirt portion to simulate a bedspread, and may have a panel to cover the pillows.
Patent GB-629348-A (GB)
Title: Improvements relating to apparatus for dispensing liquids in measured quantities
IPC: B67D7/76
Filed: 1947-02-14
Abstract: 629,348. Valves. PILLIN, J. B., and AITKEN, G. B. Feb. 14, 1947, No. 4340. [Class 135] [Also in Group XXVIII] A valve 15 carried by a hollow cylindrical member 8 open at the upper end and supported on guides 10 by springs 11 within a casing 1 is provided with an inlet 2 and an outlet 4 leading to a liquid meter. When liquid is flowing, the member 8 is filled, but is supported to maintain the valve 15 open. Should air enter the casing such that the liquid level falls, then the member 8 falls to close the valve on the seating 16 to prevent air entering the meter. A valve 6 is provided to release air from the casing 1.
Patent GB-524902-A (GB)
Title: Improvements in or relating to disintegrating pumps for liquidborne solids such, for example, as sewage
IPC: F04D7/04
Filed: 1939-02-10
Abstract: 524,902. Centrifugal pumps. PULSO METER ENGINEERING CO., Ltd., and PRICE, A. V. Feb. 10, 1939, No. 4422. [Class 110 (i)] A disintegrating pump for water-borne solids comprises two sets of vanes F, G in series, and one or more fixed knives C, H coacting with the vanes to form shearing blades, the first set of vanes F acting primarily for pumping and'preliminary cutting, while the second set G acts primarily for screening and additional cutting. An annular space J may be provided between F and G, and the inner ends of the alternate screening vanes G<1> may be relieved as shown in Fig. 2. The vanes G may be integral with F or may be carried by a separate ring attached to the rotor.
Patent GB-697120-A (GB)
Title: Neutral esters of thiophosphoric acid
IPC: A01N57/10
Filed: 1951-02-23
Abstract: The invention comprises neutral esters of thiophosphoric acid of the general formula <FORM:0697120/IV (b)/1> wherein R1 and R2 stand for alkyl radicals which may be alike or different, "alk." stands for a straight or branched chain alkylene radical which may be interrupted by an oxygen or sulphur atom, and R stands for an alkyl, hydroxyalkyl, aralkyl or aryl radical or for another group <FORM:0697120/IV (b)/2> The esters are obtained by reacting dialkyl chlorothiophosphates with compounds of the formula HO.alk.SR either as their salts or in the presence of an acid binding agent, and in the presence of a solvent.  Metallic copper may be used as a catalyst.  In examples: (1) O,O-dimethyl O-methylmercaptoethyl thiophosphate is prepared by reacting dimethyl chlorothiophosphate and the sodium derivative of b -hydroxy-ethyl methyl sulphide; (2) O,O-diethyl O-methylmercapto-ethyl thiophosphate is prepared similarly; (3) O,O-diethyl O-ethylmercapto-ethyl thiophosphate is prepared by reacting b -hydroxyethyl ethyl sulphide and diethyl chlorothiophosphate in the presence of sodium carbonate and copper powder.  Similarly prepared are compounds of the first general formula above in which R1 and R2 are ethyl radicals, "alk." represents an alkylene radical and R represents ethyl, p-tolyl, phenyl, benzyl, b -hydroxy-ethyl, n-propyl, n-butyl, n-hexyl radicals or the group (C2H5O)2PS.O. CH2CH2-, and also compounds in which R, R1 and R2 are ethyl radicals and "alk." represents a butylene or isopropylene radical.  Also specified are for R1 and R2 methyl and propyl, for "alk." the groups methylene, methylpropylene, -CH2CH2OCH2CH2-, -CH2CH2 S.CH2CH2-, and for R, methyl, propyl or butyl groups.
Patent GB-1138041-A (GB)
Title: Frozen confection dispensing apparatus
Inventor: PHELAN LOUIS AUSTIN MERRITT
IPC: A23G9/20
Filed: 1967-01-31
Abstract: 1,138,041. Rotary pumps. L. A. M. PHELAN. Jan.31, 1967 [Feb. 1, 1966], No.4674/67. Heading F1F. [Also in Divisions B1 and F4] A mixing gear pump (see also Figs. 4, 6 and 7 not shown) comprises a driving gear 34 and a driven gear 35 journalled by their teeth in the pump chambers 36, 37. Air is drawn through the passage 41 in the gear casing into an annular chamber surrounding the driving shaft of gear 34, is transferred into a cylindrical cavity 34a in the gear face by a passage 42 through the gear, and thence to the gear teeth by a recessed channel 45 in the pump end plate. Liquid is sucked in and supplied to the teeth of gear 35 by channel 43 and arcuate channel 44 both of which are also recessed in the end plate. The air and liquid are brought into contact and discharged together through passage 46 in the pump end plate and a ball valve (47, Fig. 4 not shown). The internal corners of the pump chamber are rounded off, see Fig. 7 (not shown). The upper gear, 34 has one less tooth than the lower gear 35.
Patent GB-431797-A (GB)
Title: Improvements in or relating to tables
IPC: A47B1/00
Filed: 1934-02-13
Abstract: 431,797. Tables. HUNTER, G. W., Edenholme, Mill Lane, West Derby, Liverpool. Feb. 13, 1934, No. 4696. [Class 52 (iii)] [See also Group XXV] A table top is articulated to its underframing at a single point of connection at or near one edge so that it may be raised, reversed, and lowered again. The Figure shows one form of pivot device for use in this connection. A pin e is fitted revolubly in a block f attached to an edge on the underframe, and is attached rigidly to a block g in a block l fitted in the edge of the table top. The top may be lifted the part l moving on the block g to an extent limited by the pin h and the slots j. The top may form part of a table with draw-out end leaves.
Patent GB-1445621-A (GB)
Title: Push button controls
IPC: H02K39/00
Filed: 1973-01-30
Abstract: 1445621 Reciprocating generators GTE INTERNATIONAL Inc 9 Jan 1974 [30 Jan 1973] 4727/73 Heading H2A A push button operated signal generator has a yoke 3, with a plurality of limbs (3a, Fig. 3, not shown), each limb having a movable member 5 associated therewith forming a normally closed magnetic circuit including a permanent magnet, which circuit is broken by movement of member 5 on operating a selected button 2 in an array, thereby inducing a signal in a coil 14 wound on the corresponding limb (3a). The magnet provides the restoring force on the member 5 after release and may be either the fixed or moving member. For example, in Figs. 6, 7 (not shown) a single long bar magnet is used for a number of adjacent magnetic circuits. One leg of the yoke may be be replaced by a cranked magnet operating as the moving member 5 (Figs. 4, 5, not shown). The array may be used for telephone keying.
Patent GB-1390351-A (GB)
Title: High temperature treatment of materials
IPC: C01F7/027
Filed: 1971-02-16
Abstract: 1390351 Arc furnaces TETRONICS RESEARCH & DEVELOPMENT CO Ltd 7 Feb 1972 [16 Feb 1971 (2) 18 Aug 1971] 4789/71 4790/71 and 38855/71 Heading F4B [Also in Division H5] In order to produce an expanded arc in a plasma furnace, a rotating electrode, e.g. plasma torch 1 is rotated at for example speeds at and above 300 r.p.m. by mounting it within a rotor 3 secured to a refractory member 8, the rotor and member 8 being rotated by a drive chain 5 from motor 6. The torch is arranged to slide in the bore formed by bush 2, its distance from a fixed annular electrode 12 being adjusted hydraulically by a piston rod 18 in cylinder 17. Universal couplings 21 link the rod to the torch. An annular disc 10 ensures even spread of material to be processed which is introduced between the furnace body and the member 8. The annular electrode 12 may be segmented, Fig. 5 (not shown), and liquid cooled, and oils, &c. may be added to the flame through holes in the electrode. The product is collected in a single, Fig. 1 (not shown), or double crucible (Fig. 3). Fig. 3 has tapping means 16, 16A, flue duct 18 and an additional duct 17 for introducing for example an oxidizing blast. The crucible walls 13, 13A are spaced from the refractory block 15 to reduce thermal shock and allow preheating. The arrangement of Fig. 3 provides a factionating device to gravity separate heavier products from lighter ones. The plasma torch and annular electrode may be replaced by other types of electrodes consumable or non-consumable. Copper cathode for copper refining may for example replace the stationary annular electrode. There may be a plurality of electrodes (stationary and rotating) and the atmosphere of the furnace may be varied. The arc may be adjusted to provide gaps in its path so as to increase turbulence. Specifications 1,390,352 and 1,390,353 disclose the invention as set out in this Specification.
Patent GB-107394-A (GB)
Title: Improvements in and relating to Steam Superheaters of the Multiple Smoke or Fire Tube Type.
IPC: F22G7/02
Filed: 1916-03-31
Abstract: 107,394. Robinson, J. G., and Superheater Corporation. March 31, 1916. Fire and smoke tube superheaters.-An element has four or more U-loops, two or more of which extend into a corresponding number of smoketubes in a vertical row, and two or more extend into a corresponding number of smoke-tubes in the next vertical row. Two steam inflow ends of the U-loops may be united to a single inlet pipe, and two outlet ends may be united to a single outlet pipe, the inlet and outlet pipes having cross-sectional areas equal to the areas of the two inflow and outlet ends. The elements 4, Fig. 3, inserted in horizontal and vertical rows of smoke-tubes, ara secured to the sides of a vertical header 11 by flange blocks 7. The ends of U-loops 38, 40, Fig. 20, in horizontal rows of smoke-tubes, open into enlarged pipes 39, 41 connecting the element to the header. The ends of U-loops 30, Figs. 14, 15 in vertical rows of smoketubes are extended upwards towards the header and are connected to Y-shaped junction-pieces 34<a>.
Patent GB-1241086-A (GB)
Title: Hand tools such as locking pliers
Inventor: SARVIE WALTER LEONARD
IPC: B25B7/16
Filed: 1969-01-29
Abstract: 1,241,086. Pliers. W.L.SARVIE. 29 Jan., 1969, No. 4849/69. Heading B4W. [Also in Division B3] A hand tool such as pliers 10 has a locking mechanism for locking the jaws thereof in a predetermined relation, the mechanism comprising a curved shank 19 projecting through an aperture 23 in arm 11 and a locking member 25 having an aperture through which shank 19 projects and having a portion 27 which protrudes through a hole 24 in an arm 21. The aperture in member 25 has sharp arcuate edge portions 29a, 29b which are offset axially along the aperture and which grip the shank 19 through the action of a spring 30. Release of the locking mechanism is by moving end 28 of member 25 against the action of the spring. Portions 27 of the member 25 may be shaped as shown in Fig. 12 to allow rocking of the member 25 to prevent possible binding of shank 19 in aperture 23. Alternatively portion 27 may be flat and the upper edge of the hole 24 shaped to have a downward projection, Fig. 13 (not shown). The outer end of portion 27 may be slightly enlarged to prevent disengagement between member 25 and arm 21. A method of stamping and forming the handles is described.
Patent GB-269861-A (GB)
Title: Improvements in or relating to electronic discharge apparatus
IPC: H01J19/46
Filed: 1927-02-21
Abstract: 269,861. Soc. La. Radiotechnique April 21, 1926, [Convention date]. Vacuum tubes.-A filament cathode 1 is mounted with sections in parallel on a rigid frame 8 on which a grid frame 9 and an anode 11 are supported, as by glass beads 10 or quartz rings. The filament may be wound on the frame by means of a former with pins for spacing the turns, or the frame may be notched, and the filament is subsequently soldered to the frame. The two end parts of the frame may be omitted, or replaced by insulators on which the grid is wound; or the lower end part only may be omitted.
Patent GB-648913-A (GB)
Title: Improvements in or relating to engine drives for hydraulic pumps on tractors
IPC: F16H57/02
Filed: 1948-02-19
Abstract: 648,913. Hydraulic pumps. FORD MOTOR CO., Ltd., FOXWELL, W. J., and BESSANT, V. Feb. 19, 1948, No. 4899. [Class 102(i)] [Also in Group XXXI] In a tractor transmission housing, (see Group XXXI), a compartment is filled with a hydraulic mounting means for a pump h to operate lift gear for an implement mounted on the tractor, the pump being inserted through a suitable opening in the housing. The pump h and its filter p is provided with a flange o so that it can be bolted to the housing. The pump h is driven through the tractor engine independently of the main transmission clutch a by means of a clutch cover plate e<SP>1</SP>, spider d, sleeve e, and gears f, g.
Patent GB-764188-A (GB)
Title: Polyhydroxyl polyamino compounds
IPC: C23C2/02
Filed: 1954-02-19
Abstract: The invention comprises compounds of the formula <FORM:0764188/IV(b)/1> where Y is an alkylene or cycloalkylene group which interposes 2 or 3 carbon atoms between the two nitrogen atoms, R is H or C1-C4- alkyl and n is 1-4.  These are made by reacting a diamine HRN-Y-NRH with 2 mols. of the appropriate N-(halo-hydroxyalkyl)-diethanolamine, or a compound YHal2 with 2 mols. of the appropriate N-(amino-hydroxyalkyl)-diethanolamine.  The products in aqueous solution exert a sequestering action on heavy metal ions, especially ferric, in both acid and alkaline solutions. Examples show the preparation of compounds where (1) R=H, Y=ethylene, n=1; (2) R=H; Y=propylene, n=1; (3) R=ethyl, Y=ethylene, n=4; (4) R= methyl, Y=ethylene, n=1; (5) R=H, Y= trimethylene, n=1; (6) R=H, Y=o-cyclohexylene, n=1.  Other starting materials are mentioned in which R may also be propyl, isopropyl or butyl, and n may also be 2 or 3. Specification 494,625, [Group IV], is referred to.
Patent GB-604359-A (GB)
Title: Improvements in or relating to tie rod joints for the steering assembly of automotive vehicles
IPC: F16C11/06
Filed: 1945-03-01
Abstract: 604,359. Universal joints. THOMPSON PRODUCTS, Inc. March 1, 1945, No. 5144. Convention date, Oct. 28, 1944. [Class 65 (ii)] An articulated joint for the steering gear of a motor vehicle comprises a pair of stud members 13 and 14 whose heads 13a and 14a are tiltably received in a floating and otherwise unsupported housing 15 and whose shanks 13b and 14b project from the opposite sides of the housing. The latter is adapted to tilt with either stud relative to the other stud, whereby the range of relative tilting between the studs is greater than that between either stud and the housing. The stud heads are hollow and bear internally upon hemispherical cups 23 and 24 urged apart by a spring 25, while interposed between the heads and the inner surface of the housing are bearing rings 20 and 22, all bearing surfaces being concentrically disposed about a centre C. The housing parts 18 and 19 are formed with tapered apertures 18a and 19a for the stud shanks. The said parts are separated by an apertured plate 21 and are secured together by a skirt 18d being spun over a flange 19d. A stud when tilted into contact with its associated aperture will, if displaced further, tilt the housing until the opposite aperture makes contact with its associated stud. Dust covers 26 and a lubricator 27 are provided.
Patent GB-512131-A (GB)
Title: Improvements in blast furnace stoves
IPC: C21B9/06
Filed: 1939-02-17
Abstract: 512,131. Hot blast stoves. BURGESS, A. F. (Freyn Engineering Co.). Feb. 17, 1939, No. 5311. [Class 64 (i)] The shell 11 of a hot blast stove is lined with a moulded mass 12 of insulating material which is spaced from the checkerwork filling, e.g. by using combustible spacers 13. The insulating mass, which may consist of heat resistant cement with an aggregate of granulated slag either alone or with other materials is poured into position after the checkerwork has been built up.