baber/WOPTO huggingface dataset:
Patent GB-850866-A (GB)
Title: Improvements in and relating to heat interchange apparatus
IPC: F25B39/02
Filed: 1957-03-05
Abstract: 850,866. Making heat-exchangers. PHILCO CORPORATION. March 5, 1957 [March 5, 1956], No. 7258/57. Class 83 (2). [Also in Group XIII] A unitary metal sheet having refrigerant passageways is slit and bent to shape to form condenser 22, evaporators 20, 21 for high and low-temperature compartments 16, 17 and restrictor tube 24. Preferably the sheet is formed by roll-forging and subsequent dilation of the passageways. In the sheet shown in Fig. 2, a T-shaped slit 46 separates the condenser from evaporator 20 and the restrictor tube from the condenser and evaporator 20. Gaps 41, 42, 43 separate evaporators 20, 21. An H-shaped out 40 separates the parts of evaporator 21 which form the upper and lower faces thereof. Suction conduit 37 is formed parallel to restrictor tube 24 to be in heat-exchange therewith. After formation of the flat sheet it is bent to the shape shown in Fig. 7, the condenser 22 being spaced from the rear wall of the cabinet and the part 48, in which the restrictor tube and suction conduit are formed, being secured to the rear wall. A slightly modified disposition of the passageways is described with reference to Figs. 9 and 10 (not shown). Reference has been directed by the Comptroller to Specifications 748,206 and 790,743.
Patent GB-115838-A (GB)
IPC: F21L13/06
Filed: 1918-04-30
Abstract: 115,838. Junghans, O. May 14, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Magneto-electric machines; magnetos, driving. -A magneto lamp or the like is driven noiselessly by an intermittently-operating force through the medium of springs without the use of toothed gearing. In one construction a pull is exerted on a steel band, cord, or chain g, Figs. 4 and 5, which surrounds one part of a double pulley h, and a steel band x<1> is wound from a coil on the magneto shaft i on to a larger diameter of the pulley h, thereby rotating the shaft i at a high speed. Motion is transmitted from the shaft i to the magneto through a ball or other ratchet coupling (not shown). To enable the band x<1> to be returned from the pulley h to the shaft i, use is made of a wound spring k and double pulleys l, m. The shaft i is connected to a part of the pulley l by a band y<1>, while the pulleys l, m are joined by a band y<2>, as shown. The cores s carrying the armature coils are attached to one of the cover-plates. The magnet is built up of juxtaposed parts o, p, q, Fig. 6, secured to a plate r.
Patent GB-477016-A (GB)
Title: Method of and means for effecting self-ignition of the explosive mixture in reciprocating internal combustion engines
IPC: F02B75/04
Filed: 1936-03-11
Abstract: 477,016. Driving-gear. SACCO, L. A. March 11, 1936, No. 7304. Void. Convention date, March 27,1935. Drawings to Specification. [Class 7 (ii)] The cylinder compression-ratio is varied by the provision of an eccentric bush on the crank-pin which is rotated through spurgearing from a shaft coaxial with and passing through a passage in the main shaft. This rotation is effected by axial movement of a nut, constrained from rotation, said nut being coupled to move with the main throttle valve if so desired. The application to an " in-line " and a radial-cylinder engine is described.
Patent GB-415818-A (GB)
Title: Improvements in or relating to electrical fuse switches of the pull down type
IPC: H01H9/10
Filed: 1933-03-10
Abstract: 415,818. Air-break switches. WEST & CO., Ltd., A., and SMITH, S. C., Lewes Road, Brighton. March 10, 1933, No. 7307. [Class 38 (v).] Actuating ; springs, arrangement and disposition of.-Fuse switches of the " pull-down " type are provided with a mechanism serving to exert a counterbalancing torque on the arm, the mechanical advantage of the mechanism varying in such a way as to give substantially correct balance over the whole range of movement of the arm. The fuse and contactcarrying arm 2, pivoted at X, is operated by an arm 7, and provided with a triangular extension 12 to which is pivoted a link 11, which is also pivoted to an arm 9 having a pivot at Z. The bracket by which the parts are attached to the post 5 has an abutment 17 for one end of a torsion spring 10 which is wrapped about the pivot Z and acts on arm 9 in the counterbalancing direction. Fig. 3 shows the horizontal position of the arm 2 in which the distance of 11 from X is substantially what it is in Fig. 1, whereby the increasing gravity-torque on 2 is balanced by the increasing spring-tension. In moving to the fully-lowered position, Fig. 4, the distance decreases and by making the decrease less than the increase in spring-tension, the counterbalancing torque can be made to diminish at about the same rate as the gravity torque. Actually two springs 10 are provided to each arm 2, and there are two arms 2 for a three-phase switch, the spacers of which arms serve as the point of attachment Y of the arm 7. The invention is applicable to any similarlymoving arm. Reference has been directed by the Comptroller to Specifications 391,771 and 399,618.
Patent GB-1021144-A (GB)
Title: Improvements in and relating to hydraulic brake fluid reservoirs
IPC: B60T17/22
Filed: 1963-02-23
Abstract: 1,021,144. Hydraulic brake systems. R. T. HAMILTON and W. J. GRANVILLE. Feb. 21, 1964 [Feb. 23, 1963], No. 7361/63. Headings F2E and F2F. [Also in Division H2] A brake fluid reservoir is connected internally to a source of fluid pressure to maintain the interior at a predetermined pressure above atmospheric, a warning device being provided to indicate a fall in the pressure due to loss of hydraulic fluid. The pressure  source may comprise a hand-operated pump or a cylinder extending from the reservoir lid with an open end below the surface of the hydraulic fluid. In the latter case a piston is forced downwardly against the action of a spring by fluid from the clutch master cylinder, the resulting reservoir pressure being monitored by a gauge or the air pressure above the fluid operating a mechanical indicator or a pressure switch in a warning light circuit. In the embodiment shown the switch and pressure source are combined. A rod 36 slidable in the reservoir lid 2 has insulating surface 41, 42 and an intermediate conducting surface 43. The interior of the upper bellows 34 is connected by a tube 40 to a vehicle induction manifold or vacuum vessel. Loss of brake fluid permits the external atmospheric pressure on the diaphragm to overcome spring 38 and depress the rod to allow brush 44 to contact surface 43 and complete the circuit of lamp 46. In other embodiments a piston and cylinder may replace the lower bellows. In a further embodiment (Fig. 9, not shown), a brush 74 is employed as a detent to hold the piston raised against a spring. The detent is released when the lid 2 is in place, to pressurize the brake fluid.
Patent GB-1199133-A (GB)
Title: Closure for a Container
Inventor: HENDRICKSON RICHARD F
IPC: B65D83/14
Filed: 1969-02-11
Abstract: 1,199,133. Container closure. STERLING SEAL CO. 11 Feb., 1969 [12 Feb., 1968], No. 7378/69. Heading B8T. A cap for use with an aerosol can or other container comprises upper and lower inverted cup-shaped members 10 and 14 respectively, the member 14 having a lipped centre hole 19 to underlie an edge 20 of the neck 2 of the can. A skirt 23 of the upper member 10 may be attached to a recessed portion 11 of the lower member 14 by spinning, welding or gluing, a band 13 being formed around the skirt. A skirt 25 of the lower member 14 may be curled inwardly to engage an overhang 27 of a breast 15 of the can. In a modification, the skirt of the lower member overlies the rim of the can. In a further modification, Fig. 3 (not shown), the upper member (210) is threaded to the lower member (214) thus making the cap re-usable. Again, the skirt of the lower member may be curled or straight and have a tear-strip formed around its outside.
Patent GB-831817-A (GB)
Title: Manufacture of electric insulators
IPC: H01B17/32
Filed: 1957-03-06
Abstract: 831,817. Insulators. MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE SAINT GOBAIN, CHAUNY & CIREY S.A., DES. March 6, 1957 [March 7, 1956; Feb. 1, 1957 (2)], No. 7385/57. Class 36. In the manufacture of insulators comprising a hollow casing and a supporting core of mineral (glass) fibres bonded by, or embedded in, thermosetting or thermoplastic resin, the core is inserted in the casing while the plastic is unsolidified, so as to prevent penetration by damp. The core may initially be tubular and held by gas pressure against the casing until solidified, the tube then being given a filling of similar material. In Fig. 1, the core a consisting of parallel threads, or uncrossed cords, or woven fibres formed into a core, is inserted while the plastic is soft, into a stack of toughened glass rings b and spacers c having taper-bored steel endsleeves d for carrying steel suspension caps f. Conical wedges g are forced into the core-ends to compress them against the sleeve-bores. In order to minimize friction in inserting the core, the core may be inserted in centring rings e, Fig. 2, of smaller internal diameter than the rings b and the spaces h subsequently filled with a similar plastic to which a filler may be added. In a modification of this, the rings e are originally loose in the bore but coupled together with links which ensure their correct spacing (Fig. 4, not shown). Fig. 5 shows a form in which supplementary sleeves 3 having uniform bores are attached to each sleeve 2, that at the starting end having a flared entry 3<SP>1</SP> and sawcut 5. With this arrangement the core can be cut to accurate length and its ends protected until the sleeves 3 are removed and the wedges inserted. Fig. 9 shows a form in which damage to the core-ends is minimized by a clamping-ring 8 applied over the splayed-out ends before the wedge is inserted. This arrangement may also be applied to a cylindrical core-end, Fig. 11, which also shows the sleeve 2<SP>1</SP> separated from the casing by a steel tube 9 fixed to the sleeve and forming a suspension-means with the latter. In Fig. 12 (not shown), the wedge has a double taper and a second sleeve is provided to co-operate with the other tapered part. In Fig. 13, the sleeve 2 is externally threaded to receive a nut 2b and a ring 2a separates the sleeve 2 from a saw-cut supplementary sleeve 3<SP>1</SP>. The core is cut to length, sleeve 3<SP>1</SP> is removed, and the core-ends secured to ring 2a by a clamping-ring. The nut 2b is then rotated to bear on the ring 2a and tension the core, which is then held firm by insertion of the wedge. After solidification the nut can be turned back and a saw inserted between the sleeve 2 and ring 2a to enable the fittings to be used again.
Patent GB-232751-A (GB)
Title: A collapsible and portable drying cabinet
IPC: D06F58/14
Filed: 1924-03-24
Abstract: 232,751. Holworthy, H. F. March 24, 1924. Drying-ovens. - A foldable and portable drying- oven for domestic use comprises hollow rear and front walls, side walls having battens a<1> for supporting the rails d upon which articles are suspended, a top having an adjustable ventilator 4, and a metal grid 6 surmounted by a perforated sheet of asbestos beneath which the heater is arranged. The walls are hingedly or otherwise connected, and the top and grid are hinged to a side wall and provided with dowels or catches for engagement with the opposite side. A conical ring 10 surrounding a baffle plate 11 may be provided on the grid when a gas burner is employed for heating the cabinet. Hooks may be provided in the oven for supporting baskets of small articles, such as collars. In a modification, the side walls are each formed in two parts hinged at the centre.
Patent GB-1461280-A (GB)
Title: Refining  of carbonaceous fuels
IPC: C10G1/06
Filed: 1974-02-19
Abstract: 1461280 Extracting coal GULF OIL CORP 19 Feb 1974 7499/74 Heading C5E Ash-free solid carbonaceous fuel is produced by digesting coal in an aromatic solvent at 700-950‹ F. and 500-5000 p.s.i.g. in contact with 1À5-40 SCF of carbon monoxide and 0À2- 1À5 pounds of steam per pound of dry coal, separating the undissolved portion of the coal from the solution and recovering the ash-free solid fuel from the solution; the conditions during the digestion are such that the relative viscosity of the solution measured at 210‹ F. rises to a value at least 20 times that of the solvent alone (due to extraction of carbonaceous fuel from the coal) and then falls to a value of below 10 (due to depolymerization of the extracted fuel) and would then permit the relative viscosity of the solution to again rise above 10 with increased dissolving time (due to repolymerization) except that such conditions are terminated before the relative viscosity again rises to above 10. Ground coal 2 is slurried in a solvent 3, mixed with a carbon monoxide and steam-containing gas from line 8 and passed through the preheater 5 and a digestion vessel 6. Alternatively steam can be provided by water contained in the coal and the gas can also contain hydrogen. The mixture is filtered at 10 to produce a residue 16 from which residual solvent can be removed and recycled, a gas stream 11 which is recycled via a scrubber 12 and a solution 20. The solution is heated at 21 and flashed under vacuum at 23 to provide ashfree liquid fuel 29 which is solidified at 30 and a gaseous stream 24 which is separated at 25 to provide the recycle solvent 26. The possibility of using anthracene oil or creosote oil as the solvent is referred to.
Patent GB-448200-A (GB)
Title: Improvements in or relating to the assembly of pipe joints particularly for concretepipes
IPC: F16L13/12
Filed: 1935-03-11
Abstract: 448,200. Pipe joints. AKT.-GES. HUNZIKER & CIE ZURICH. BAUSTOFFABRIKEN BRUGG UND OLTEN, Brugg, Switzerland. March 11, 1935, No. 7543. Convention date, Dec. 15, 1934. [Class 99 (i)] A pipe end z is centred during its insertion into a socket m on the end of an adjacent pipe by means comprising a ring h which is clamped around the socket m and is formed with a projecting portion constituting a supporting bearing l for the pipe z, the bearing being provided with carrier balls or rollers q which are circumferentially spaced at an angle of 90‹. The pipe z, when located on the bearing, is preferably forced into position by two bolts k which are mounted on a ring i clamped to the pipe and have hooks 8 at one end for engagement with the ring h and tensioning nuts t at the other end. The invention is shown applied to a joint in which the pipes have curved end bearing faces p and wherein two packing spaces are provided, a wedge-shaped space for hemp cords c soaked in asphalt and the other for hemp cords e,f, alternately soaked with and devoid of asphalt, which are caulked and then sealed with cement mortar g.
Patent GB-491257-A (GB)
Title: Improvements in or relating to lighting fittings
IPC: F21S8/00
Filed: 1937-03-15
Abstract: 491,257. Street &c. lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and MAXTED, R. March 15, 1937, No. 7545. [Class 75 (iv)] In a street lighting fitting light from an elongated source 3 is reflected outwards at an angle of from 78 to 82‹ to the vertical from reflectors 1, at an angle of about 77‹ from the upper prisms of refractors 7, and at angles of from 16 to 72‹ from its lower curved prisms 11, while a fluted spreader glass 13 functions to provide uniformly continuous illumination in spite of opaque supporting rods 15. Prismatic panels 5 spread the light. The lower prisms of the refractor 7 give maximum illumination at an angle of about 65‹. Specification 462,056 is referred to.
Patent GB-460076-A (GB)
Title: Improvements in valve circuits for translating radio signals from two antenna systems or the like
IPC: G01S1/02
Filed: 1936-03-13
Abstract: 460,076. Directive wireless signalling. COLE, Ltd., E. K. March 13, 1936, No. 7587. Convention date, Sept. 16, 1935. [Class 40 (v)] The disturbing effect of direct pick-up along the horizontal feed-lines of a directive aerial system, of the Adcock type, is minimized by applying signals from one pair of the aerials to two amplifiers in push-pull, and from the other pair of aerials to the same valves in parallel. The signal frequency may be changed whilst preserving the initial differences in amplitude which give the directive effect. As shown in Fig. 1, signal voltage from the dipole pair 1 is applied at 3 to the valves 5<1>, 5<11> which act in push-pull and deliver the amplified signals at 6 to the receiver 8. Simultaneously, signals from the other pair of dipoles 2 are applied at 9, and are amplified by the same valves which now act in parallel to feed the receiver 8 through the output transformer 11. In Fig. 2, the valves 161, 16<11> are back-coupled through a common circuit 17 to produce a local frequency. This serves to step-up the signal frequency, the valves acting in push-pull on one pair of aerials and in parallel on the other. A four-valve circuit is also described which combines the functions of Figs. 1 and 2.
Patent GB-577586-A (GB)
Title: Improvements in or relating to means for dispensing sterilized liquids
IPC: B05B11/00
Filed: 1944-04-25
Abstract: 577,586. Dispensing liquids by gaseous pressure. PIPPARD, H. A. April 25, 1944, No. 7670. [Class 102 (ii)] [Also in Group VI] Apparatus for dispensing sterilised liquids comprises a container 1, of glass, plastic or other suitable material, sealed by a stopper 2 fitted with an outlet 7, having a non-return valve 8, and a tube 3 fitted with a hand bulb 5 for forcing air into the container and displacing the liquid. The outlet from the bulb is fitted with a bacterial filter 6, e.g., a wad of cotton wool, and a non-return valve 4. In an alternative construction, the bulb is replaced by a vessel containing compressed air or gas, e.g., nitrogen.
Patent GB-563846-A (GB)
Title: Improvements in and relating to soldering apparatus
IPC: B23K3/06
Filed: 1943-05-17
Abstract: 563,846. Soldering. FUNDITOR, Ltd., and STROBEL, A. May 17, 1943, No. 7818. [Class 83 (iv)] A soldering - apparatus for the ends of radio valve pins, electric contact tags, wires, &c., comprises a solder pot, a movable solder dipping tray supplied with solder by submerging it in the solder in the pot and then raising it again by means such as a pedal or manually - operated mechanism, mechanical means being provided for removing dross from the surface of the solder either in the tray or in the pot. The solder pot 4 may rest in a casing 6 supported on legs and be heated by a gas or electric heater. The tray 7 may be carried by arms 8 from pins 9 which are moved in slots 10 in brackets 11 by spring- controlled rods 12 moved down in lugs on the casing 6 by a pedal-operated bar 13. Screw 16a adjusts the travel of the bar 13. Brackets 11 carry pivots 19 for levers 18 to which the wiper bar 17 is secured. This may be operated to remove dross from the surface of the solder in the pot when the tray is lowered by the pedal to be refilled. This is effected by rollers 20 carried by the arms 8, the wiper being returned by a spring 21. The tray may be of a depth corresponding to the length of the article it is desired to solder or it may be of greater depth and the solder filled to a marked level therein so that when the articles touch the bottom of the tray they will be correctly dipped.
Patent GB-323683-A (GB)
Title: Improvements relating to pivots
IPC: F21V17/00
Filed: 1929-03-11
Abstract: 323,683. Lucas, Ltd., J., and Egginton, W. H. March 11, 1929. Ball joints. - The pivoted mounting comprises a ball located between the parts to be connected and engaging holes or recesses in the members, and a resilient clamping piece which embraces the members adjacent to the ball for preventing accidental displacement. As applied to a vehicle lamp, a ball f engages each of the diametrically-opposite recesses e in the sides of a stationary ring d and projects through each of the holes c formed in the flange a of the lamp reflector b, a spring clamp g, bent as shown, preventing the displacement of the parts. One end of the clamp is formed with a hole h and the other end is formed with a recess i to engage the projecting part of the ball.
Patent GB-440023-A (GB)
Title: Improvements in or relating to the transmutation of chemical elements
IPC: G21G1/02
Filed: 1934-03-12
Abstract: <PICT:0440023/III/1> <PICT:0440023/III/2> <PICT:0440023/III/3> Radio - active elements are generated by a neutron radiation which is emitted from a space in which a nuclear transmutation process is maintained and falls upon an element, thereby transmuting it into a radioactive element.  The neutron radiation may be produced by the action of a beam of diplogen ions produced by a canal-ray tube 9, Fig. 2, and accelerated in a continuation 10 of the tube, which enter a chamber containing diplogen, a diplogen compound of lithium or other light elements.  The element to be transmuted into the radio-active element is contained in a body surrounding this chamber. Elements having half-life periods exceeding 24 hours may be thus generated.  The radiation may also be produced by heating up a small space 44, Fig. 4, containing diplogen, lithium hydride or other light element compound of hydrogen or diplogen by bombarding it with canal rays, for example:--a diplon beam, or with a proton or electron beam generated by the discharge of condensers 52 through the cathode ray tubes 41, and passing through metal windows to the container 44.  In another form, a cathode-ray tube having a thin metal window 27 serving as the anode is excited from a 10 million volt impulse generator and the beam falls on a target 31 of lead mounted on a rotating anti-cathode 30 and water cooled through the axle 35.  The X-rays generated produce neutrons in a beryllium block 52 which is surrounded by a block 34 of the element, for example iodine or arsenic, which is to be transmuted to the radio-active element.  In the case, for example, of iodine the radioactive element produced is an isotope, and the element is then irradiated in the form of a compound, for example a carbon compound such as iodoform or ethyl iodide, which leaves the radio-active isotope free.  A small amount of ordinary iodine may be added before or after radiation and the whole then separated so that the radio-active iodine is obtained together with the added iodine.
Patent GB-722887-A (GB)
Title: Method of manufacturing plastic teeth and products obtained thereby
IPC: A61C13/00
Filed: 1953-03-23
Abstract: In teeth made of artificial resin the parts subject to wear consist of an intimate agglomerate of inorganic fibres such as glass or quartz having a length preferably between one fifth and one half of an inch, which are bonded together and secured in the tooth by artificial resin, preferably of a thermosetting type. The buccal face and the neck of the tooth are formed of synthetic resin without any reinforcing fibres.  The diameter of the fibres used is preferably between 0.00002 and 0.00008 inch, and they should form at least 5 per cent by weight of the agglomerate.