baber/WOPTO huggingface dataset:
Patent GB-1130327-A (GB)
Title: Improvements in or relating to meshing screw pumps
Inventor: HAVALDA PAVOL
IPC: F04C3/08
Filed: 1966-01-28
Abstract: 1,130,327. Meshing screw pumps. SIGMA LUTIN, NARODNI PODNIK. Jan. 28, 1966, No. 3925/66. Heading F1F. [Also in Division B3] A meshing screw pump comprises synchronously rotating screw spindles of uniform outer diameter engaging with one another in a pump body wherein the thread profiles in each axial section have flat tops, bottoms lying on the surface of revolution of a line containing the lines of contact between each screw spindle and the tops of the threads of a spindle, and two curvilinear concave sides shaped to provide uniform clearance between each thread side and the adjacent edge of the top of an adjacent thread on a spindle, throughout the arcs of engagement between threads on the two spindles. The screw axes may be parallel to each other in both plan and elevation or inclined with respect to each other either in plan or elevation or both, with the axes intersecting or not intersecting each other. The spindles may rotate in the same or opposite directions and each screw may be provided with threads of the same or opposite hand. The pump may be used for conveying solid granular, fibrous or viscous suspensions in pressure media, as a spiral conveyer for glutinous, basty or granular materials. Fig. 29, shows screw spindles 3, 4 having axes 1, 2 respectively inclined with respect to and intersecting each other. The thread grooves are formed by the cutting of the top thread surface 5 of one spindle by the top thread surface 5 of the other spindle to form a groove having in axial section sides 29, 30 formed as intersection points 32 of the helical lines 33 of individual points of the edges 34, 35 on the top thread surface.
Patent GB-137647-A (GB)
Title: Improvements in gas producers
IPC: C10J3/80
Filed: 1919-02-18
Abstract: 137,647. West, J., and Wild, W. Feb. 18,1919. Grates.-The vertical or inclined grate of a gas-producer is provided at the top with a water-header b, the steam generated in which is supplied by pipes d to the ash-pit, and thence, mixed with air, reaches the fire. As shown in Fig. 1, the header b at the top of the grate is kept partly filled with water, its side in contact with the hot coke being always covered, while at the other side is a steam space into which extend the pipes d. The upper ends of the fire-bars a engage a rod f mounted in slotted brackets and provided with lugs which normally engage the underside of the header and thus locks the bars. In modifications, some or all of the fire-bars may take the form of water-tubes connecting the header b with a lower header.
Patent GB-657289-A (GB)
Title: Improvements in suction-tubes for suction dredges of the centre-sump type
IPC: E02F9/06
Filed: 1949-02-14
Abstract: 657,289. Dredgers. ATELIERS ET CHANTIERS DE BRETAGNE ANCIENS ETABLISSEMENTS DE LA BROSSE ET FOUCHE. Feb. 14, 1949, No. 4016. Convention date, Jan. 27. [Class 113 (ii)] In a dredger-tube for a suction dredge which comprises two tube sections 16, 21, the upper section 16 which is connected with the knee 14 provided for connection with the suction pump inlet is mounted in a metallic framework 17 pivoted at 18 at the level of said knee, and the lower section 21 which is connected through a cardan joint to the end of the upper section, is mounted in a rigid framework 23 which is adapted to be made rigid with the first-mentioned framework through interposal of a connecting frame 32 adapted to be inserted between both said frameworks 16, 21, and secured through bolts to the respective ends thereof.
Patent GB-1242445-A (GB)
Title: Grinding apparatus
Inventor: SAUNAL R
IPC: C22B1/00
Filed: 1968-08-09
Abstract: 1,242,445. Screening ores; autogenous mills. SOC. DES MINES D'ANDERNY-CHEVILLON. 9 Aug., 1968 [21 Aug., 1967], No. 4037/ 71. Divided out of 1,242,444. Headings B2A and B2H. The subject matter of this Specification is substantially the same as that described in the parent Specification, but the claims are concerned with an apparatus for self-grinding of valuable raw materials which comprises a rotatable drum and a set of screening elements, each element comprising a segment provided with passages for ground material, some elements having passages of different crosssectional areas to those of other elements, and the elements being selectively and removably mountable in the drum whereby the size of the particles of ground material discharged through the passages can be varied.
Patent GB-110479-A (GB)
Title: Improvements in or relating to Transmission Gear.
Inventor: COWEY LEONARD EUGENE
IPC: F16H57/038
Filed: 1917-03-20
Abstract: 110,479. Cowey, L. E. March 20, 1917. Speed-indicator transmission mechanism.-Two rotary transmission shafts C, D adapted to be set to work at an adjustable angle, such as are used for speed-indicators on motor-vehicles, are connected by bevel-wheels c<1>, d' the teeth of which are rounded at the ends and so formed as to remain in contact through a wide angle of adjustment. The shafts C, D are supported in ball bearings c, d, in casings A, B, and the casing A is provided with a cylindrical box a<4> enclosing a cylindrical box b<1> on the casing B, slots a<7>, b<2> being provided in the boxes to permit of angular adjustment of the shafts. The casing A is adjustable round its axis in a clamp a, or in a clamp a<2> on the casing a<3>, and during angular adjustment of the shafts movement takes place round the point of contact y of the teeth of the wheels c<1>, d<1>.
Patent GB-677024-A (GB)
Title: Improvements relating to electricity distributing systems and protective arrangements therefor
Inventor: LUCAS SYDNEY
IPC: H02H3/28
Filed: 1950-02-17
Abstract: 677,024. Protective cut-out arrangements. ROTAX, Ltd. Jan. 4, 1951. [Feb. 17, 1950] No. 4096/50. Class 38 (v). A three-phase charging system for storage batteries e, i which are supplied over a stepdown transformer c, g and full-wave rectifiers d, h, is protected against earth faults or rectifier failure, by a relay or relays each having a pair of normally balanced windings k. The midpoint of each pair is connected to a neutral point of the A.C. part of the system, as shown to star points of the transformer, and the ends of the windings are connected to the opposite poles of the batteries, or to one pole and earth (as shown). Each relay controls a contact m which on fault engages one of a pair of fixed contacts to energize a coil n, which opens the circuit of a circuit-breaker operating coil p at o.
Patent GB-585309-A (GB)
Title: Improved means for fixing and locating gas burners in gas appliances
IPC: F24H9/18
Filed: 1945-02-19
Abstract: 585,309. Water heaters. FRIEDMAN, L. Feb. 19, 1945, No. 4125. [Class 64 (i)] [Also in Group XI] The combustion shell 14 of a water heater is supported by flanges 12 and lugs 13 on brackets 9 supporting a grid burner 4.
Patent GB-789872-A (GB)
Title: Improvements in brake cylinders
Inventor: MASON JAMES ROLAND
IPC: F16D65/28
Filed: 1955-02-11
Abstract: 789,872. Cylinders. PETERS & CO., Ltd., G. D. May 7, 1956 [Feb. 11, 1955], No. 4142/55. Class 122 (1). [Also in Group XXXIV] In a brake cylinder for vacuum brakes on vehicles and the like of the combined type, i.e. in which the cylinder itself is contained in an outer casing, the cylinder is formed either wholly or in part from a plastic material or resinous composition with appropriate fibre reinforcement such as a phenol or urea formaldehyde condensation product or a polyester resin reinforced with glass fibre. The walls of the cylinder may be plain cylindrical and may be ribbed for reinforcement; the ribs being formed integrally with the cylinder. Specification 789,871, [Group XXXIV], is referred to.
Patent GB-109934-A (GB)
Title: Improvements in and relating to Oil Cans.
Inventor: BLANCHETTE JOSEPH ATHANASE
IPC: F16N5/00
Filed: 1917-03-22
Abstract: 109,934. Blanchette, J. A., and Hansen, A: A. March 22, 1917. Piston apparatus for discharging receptacles.-Oil is ejected from an oil-can for lubricating and other purposes by a piston acted upon by compressed air. An oil reservoir 2 is enclosed in an air reservoir 1 in which air is compressed by a pump 15, Fig. 4. The air enters an opening 33 controlled by a valve 34, and passes through a pipe 28 to the upper side of a piston 21. which acts against a spring 25, oil being forced through a spout 9. An air-relief valve 32 and the valve 34 are operated by handles placed near the handle 14 of the can.
Patent GB-1490775-A (GB)
Title: Hydraulic drive for the die closing unit of an injection moulding machine
IPC: B22D17/26
Filed: 1975-01-31
Abstract: 1490775 Injection mould clamp K HEHL 31 Jan 1975 [27 March 1974 22 April 1974] 4238/75 Heading B5A Two-stage mould closure is obtained in an injection-moulding machine of the pull-, Figs. 1, 2, 9, or push-closing type, Fig. 18, by providing the main power piston of the mould closing unit with by-pass channels which may be closed by a valve to achieve full mould clamping pressure and opened to allow the fast approach and retraction movement of the closure unit by an auxiliary piston. In Figs. 1, 2 a pair of main power pistons 24 are provided with by-pass channels 28 which may be opened and closed by a respective hollow valve plunger 25 mounted on a respective piston-rod 16 attached to a platen 12 carrying the movable half of a mould closing unit 13. The valves 25 may be opened by hydraulic fluid introduced through an inlet 22 and passed through channels 31 in the piston-rods 16. This fluid also acts on a pistonrod 16<SP>1</SP> in a chamber 81 to achieve the fast opening stroke of the mould clamping unit. The fast closing stroke is achieved by fluid acting on an auxiliary piston 14 the valves being kept open by pressure difference across the respective power pistons 24 and/or by a spring (47, Figs. 4, 5, not shown). Main clamping pressure is obtained by passing fluid through ports 19 to close the valves 25 against the pistons 24 and thus to act on the combined faces of the valves and pistons 24. In a second embodiment of the pull-type, Fig. 9, (Fig, 8, not shown) each valve 61 is mounted externally of the power piston 72 and slides within a sleeve attached to a pistonrod 16. In this embodiment pressure fluid fed through the channel 31 serves to close the valve against the power piston 72 as shown in Fig. 9. A spring (47, Figs. 11, 12) may assist. The valve is opened when pressure exists within the chambers 75, 76 and the channel 31 is depressurized. The fast opening stroke is achieved by fluid within a pair of auxiliary cylinders (81, Fig. 8) acting on the piston rods 16. Each of the latter has a larger diameter within the chamber 76 (see Fig. 8) than in the chamber 75, the fast closing stroke being achieved by pressurizing the chambers 75, 76. In a modification of Fig. 9, the valve is mounted externally of an annular member (711, Fig. 14) rather than within the sleeve 71. Fig. 18 illustrates an embodiment of the pushtype and shows a valve 61 slidable upon a sleeve 711 screw-threaded against a main power piston 72 mounted on the single piston-rod 92 of the mould closing unit. The valve 61 is opened by pressure in chamber 75 and closed against bypass channels 73 by pressure fluid introduced via channels 31. An auxiliary piston 94 provides a fast opening stroke.
Patent GB-1306251-A (GB)
IPC: F01C21/10
Filed: 1970-01-29
Abstract: 1306251 Rotary positive-displacement pumps AIRBORNE MFG CO 29 Jan 1970 [31 Jan 1969] 4324/70 Heading F1F In a pump similar to that disclosed in Specification 1113478 the profile of the inner surface of the stator S is modified so that the maximum stresses in the vanes 16 due to radial acceleration and bending caused by friction at said surface do not occur simultaneously. The profile is described in detail with reference to Figs.7 to 11 (not shown). Each vane may be armoured as described in Specification 1181598. An end plate 14 is urged towards the rotor R by a spring 31 and fluid pressure in an outlet chamber 23 and is prevented from turning by lugs 36 on an end cover B abutting the stator. Ports 29 in said plate allow outlet passages 28 in the stator to communicate with said chamber. Similar ports in an end plate 13 permit communication between inlet passages 24 and an inlet chamber 21. Slots 25, 27 in the stator connect the working spaces to said passages. Reference has been directed by the Comptroller to Specification
Patent GB-105229-A (GB)
Title: Improvements in and relating to Dust Caps.
IPC: B60C29/06
Filed: 1917-03-26
Abstract: 105,229. Schrader's Son, Inc., A., (Assignees of Schiveinert, M. C., and Volckausen, J.). March 21, 1016, [Convention datel. Dust - caps for tyre valves comprise an openended outer part B, preferably of sheet steel, and an inner threaded bushing C of brass or other rust - resisting material. The two parts are secured against relative rotary movement, preferably by fluting D and engaging projections E, and against longitudinal movement by the tapered formation, as shown, or by other means.
Patent GB-651834-A (GB)
Title: Improvements in or relating to a fluid drive for sedimentation apparatus
IPC: F03C1/22
Filed: 1947-02-17
Abstract: 651,834. Compressed air &c. engines. GENERAL AMERICAN TRANSPORTATION CORPORATION. Feb. 17, 1947, No. 4505. Convention date, Feb. 16, 1946. [Class 122(iii)] '[Also in Groups I and XXIX] The rotational drive for the scraper or raking arms of a sedimentation apparatus is effected through a ring gear 2, Fig. 7, the teeth of which mesh with pinions 16 spaced 90 degrees apart: Each pinion 16 is journalled upon a shaft that has a crank portion, which latter has coupled to it two connecting rods, one from each adjacent opposed-piston fluid motor 24c, the connecting rods thereby forming a rectangle. The cylinders of each motor 24c are, by means of trunnions, pivotally mounted in order to accommodiate, without strain, the movement of the connecting rods, although the cylinder may be fixed, provided articulated connecting rods are used. In order to effect a balanced and continuous rotation of the ring gear 2 a relative phase displacement of 180 degrees in the operation of adjacent motors is maintained. In a modification, each motor piston has a separate cylinder, the adjacent pairs of cylinders. being pivoted back-to-back on a common pin. In another modification, Fig. 8, the ring gear 2 is driven from five pinions 16 and single piston-motors 24b. Each motor cylinder is connected by a rod 66 to the crank portion of a pinion shaft whilst the piston connecting-rods are similarly joined to another pinion shaft. This embodiment illustrates a pentagonal arrangement of connections to the driving pinions 16, but any other form is permissible, although where it is desired to utilize a large number of driving pinions two rectangular arrangements are used, one above the other, so avoiding interference between the connecting rods.
Patent GB-281139-A (GB)
Title: Improvements in slack adjusters for brake operating mechanism
IPC: B61H15/00
Filed: 1927-02-17
Abstract: 281,139. Toms, A., (Brill Co., J. G.). Feb. 17,1927. Compensating for wear.-An automatic slackadjusting means for the brake gear of a railway vehicle comprises a pair of heads 14, 16, each pivotally connected to a brake lever, an intermediate rod 17 having a screw-threaded connection with the head 14 and a free rotative connection with the head 16 by means of an annular groove 18, Fig. 2. in the rod 17 engaged by a bolt 19 secured to the head, and a ratchet device 25, 27, operated by a rotatable sleeve 33 through a bell-crank lever 36. A collar 20 is fixed to the rod 17 and is provided with an extension 25 having serrated teeth which are engaged by corresponding teeth on an annular ring 27 slidably engaged by the sleeve 33. A spring 29, between the head 16 and ring 27 maintains the serrated teeth in engagement. The bell-crank 36 has one arm provided with an adjustable finger 29 by means of which the rotation of the sleeve 33 is regulated. Excessive movement of the brake lever 12 permits the sleeve 33 to rotate the ring 27 to slip one tooth on the lower member 25 whereby the .rod 17 is rotated on the return stroke of the bell-crank.
Patent GB-695402-A (GB)
Title: Improvements in or relating to dental hand tools
IPC: A61C3/025
Filed: 1951-02-26
Abstract: 695,402. Sand-blast apparatus. RITTER CO., Inc. Feb. 26, 1951 [Feb. 25, 1950; March 4, 1950; May 8, 1950; Aug. 25, 1950; Sept. 28, 1950], No. 4665/51. Addition to 691,703. Class 60. [Also in Group VI] A dental hand tool as claimed and described in the parent Specification includes means for detaching and replacing the pressure fluid conductor nozzle. The pressure fluid conductor 41 is provided at the nozzle end with an enlargement 56 over which a sleeve 58 is screwed to secure a ball-shaped element 59 of a nozzle 60. The direction of the nozzle 60 may be altered by adjusting the position of the ball-shaped element 59 before securing the sleeve 58. The nozzle may take various forms. An elliptical member 62 (Fig. 15) may partially obstruct the bore, thus providing a crescent-shaped opening. The usually open end of the bore may be blocked and an opening in the form of a circular aperture 66 (Fig. 18) a slot 69 (Fig. 19) or a notch 72 (Fig. 21) provided. The open end of the nozzle may be flattened (Fig. 25) to a slot 75 or crescent shape. The axis of the nozzle may be curved and provided with a flattened slotshaped opening 88 (Fig. 33). In many forms of the nozzle a notch is cut out of one side of the opening. The suction fluid conductor 94 is also made detachable and may take various forms. The nozzle end is flared and provided with an observation window 98 beneath which are air inlet holes. A light reflector may be arranged on the opposite side of the nozzle to the observation window 98. In one form of suction nozzle, observation apertures, Fig. 5 (not shown), which are open or fitted with glass are provided. The open end, Fig. 8 (not shown), of the nozzle may be inclined or may be fitted with a resilient sleeve 120 (Fig. 11) for application to the tooth. A template of rubber against which the tool may be pressed may be applied to the teeth to protect them against accidental abrasion. Specification 235,832, [Class 60], also is referred to.
Patent GB-657386-A (GB)
Title: Improvements in safety lock
IPC: E05B29/04
Filed: 1949-02-21
Abstract: 657,386. Barrel locks. OROQUIETA, J. V. Feb. 21, 1949, No. 4671. Convention date, Jan. 20. [Class 44] A barrel lock, shown in sections in Figs. 5 and 6, comprises a cylinder c having a transverse slot 7 accommodating a set of plate tumblers e, Fig. 1, having openings 15 therein to receive a key f, key guides 16, 17 being formed in the openings in such a manner that the set of tumblers provides two key-ways with identical rows of keyguides but in opposite directions from each respective key-hole so that the key may be inserted from one side of the lock to co-operate with one set of key-guides and from the other side to co-operate with the other set. The two key-ways are disposed parallel to each other and are formed by the upper parts of a single Y-shaped keyway accessible through a key-hole 10, Fig, 9, at each side. The key f is bent slightly in its depth so that when inserted from one side it, passes through the branch 10<1> of the Y-shaped opening 10 to co-operate with the key-guides 16 and when inserted from the other side it passes through the branch 10<11> to co-operate with the key guides 17. Each tumbler is urged by the hooked end 18<1>, Figs 5 and 6, of a spring-loaded lever 18 to engage the lower end 9 in a slot 5 in the lock body d. Insertion of the key from either side aligns the ends of the tumblers with the surface of the cylinder so that the cylinder may be turned, an arm 3 engaging in recesses 2<1> of the bolt tail 2 to withdraw or project the bolt. The spring- loaded levers 18 may be replaced by a single spring-loaded block bearing down on all the tumblers. A catch, pivoted on one side of the lock body may be adapted to retain a key in the lock to prevent operation of the lock from the other side.
Patent GB-1220173-A (GB)
Title: Particulate material pumping apparatus
IPC: B65G53/46
Filed: 1968-01-30
Abstract: 1,220,173. Reciprocating pumps; conveying solids in liquids. RADER PNEUMATICS & ENG. CO. Ltd. Jan. 30, 1968, [Jan. 30, 1967], No.4672/68. Headings F1A and F1R. [Also in Division B8] In a reciprocating pump for conveying particulate material from an inlet 21 to an outlet 23, either the piston 19 or the cylinder 12 Fig. 5 (not shown) is perforated and a supply of fluid (gas or liquid) is directed through the perforations and so between adjacent walls of the piston and cylinder during reciprocation. The piston controls the inlet 21 and is engageable with the outlet valve 27 at the end of the delivering stroke. The pump may draw from or deliver to a fluid conveyor system the fluid being either gas or liquid.
Patent GB-658678-A (GB)
Title: Improvements relating to dish washing machines
IPC: A47L15/06
Filed: 1949-02-21
Abstract: 658,678. Dish-washing machines. CARLSTEDT, S. B. F. Feb. 21, 1949, No. 4677. [Class 138(i)] In a dish-washing machine having one or more rotor members or blades 9 secured on a horizontal shaft 8 and mounted and adapted to operate within a lower portion 2 of the casing of the machine the lower portion is made from stout material, preferably cast metal, so as to possess a good sound-absorptive capacity, whereas the upper portion 1 is made of thin material, preferably sheet metal, having a low heat capacity, said upper portion also having a larger internal surface wetted by the washing liquid than the lower portion. The portions 1 and 2 are connected together by fasteners 6 with a packing or gasket 7 of soft material interposed between them. The shaft 8 is supported in elastic bushing bearings mounted in the end walls of the portion 2. Distributed along and uniformally around the circumference of the shaft are three blades 9 having counterweights 10, 10<SP>1</SP>. These blades may extend over the whole length of the shaft. The shaft is driven from a motor 16, supported on lugs 17 on the portion 2, by a belt 15 and pulley 14. Liquid is supplied to the machine through a channel in the shaft and through a centrifugal valve housed within the counterweight 10<SP>1</SP>. In operation sound vibrations are reduced and owing to the low heat capacity of the upper portion 1, the washing liquid is not cooled down to an undesirable degree as would be the case if the portion 1 was made of heavy material.
Patent GB-572663-A (GB)
Title: Improvements in or relating to apparatus for delivering fluent material
IPC: B65D35/28
Filed: 1941-04-09
Abstract: 572,663. Collapsable tubes. BRITISH UNITED SHOE MACHINERY CO., Ltd., and PRATT, J. W. April 9, 1941, No. 4711. [Class 66] The contents, e.g., a rubber composition with sulphur and a vulcanizing accelerator, of two or more collapsable tubes t, lying side by side, are extruded through a manifold to mingle in equal proportions at the delivery pipe 45, by a curved plate 15 one end of which is pressed downwardly by turning a nut 19 on a threaded rod 11 pivoted at 9, and mounting also a pressing head 17 and a thrust-race 21. As the plate 15 compresses the tubes t against the base-plate 1, its rear end may rise against pressure of a spring 35 on a rod 25 pivoted at 29. There is a depending handle 5. Specification 307,980, [Class 66], is referred to.