baber/WOPTO huggingface dataset:
Patent GB-1025596-A (GB)
Title: Apparatus for making cast thermosetting plastic resin reproductions of web materials
IPC: B29C53/24
Filed: 1964-08-05
Abstract: 1,025,596. Web coating apparatus. N. FORREST. Aug. 5, 1964 [July 10, 1964], No. 31780/64. Heading D1L [Also in Division B5J.  In a continuous sheet casting process, to form tufted &c. sheet material, the moulding belt is flexed during the actual casting, to facilitate complete penetration of the material into the fibre forming cavities, and is flexed again during the stripping to elongate the fibres beyond their elastic limit and to curl them (see Fig. 5, not shown). In the embodiment shown in Fig. 1, the moulding material 30 is applied to an endless flexible belt, as it is distorted over roller 16, by an ultrasonically vibrated squeegee bar 28, the material being subsequently cured or partially cured by a dielectric high frequency heater 34. Further coats 52, 54 are than applied by vibrated bars 48, 50, the coats cured by an infra red heater 60, and the finished sheet P stripped from the belt as it passes over roller 20, to cooler 64. The belt is supported over a table 38 by a second belt 40 during the baking steps and a serim or fabric may be applied. If required the belt 40 may be replaced by a sealed porous belt to which a vacuum is applied so that penetration of the material is further facilitated. In a second embodiment (see Fig. 2, not shown) both the fibre forming layer and a backing layer are applied to the belt as it is flexed over a roller, the two layers being subsequently cured in one step. In a third embodiment (see Fig. 3, not shown) a fibre forming layer is applied to the belt, a backing layer of fabric or serim then applied, the whole then being bonded and cured by a dielectric heater, cooled by passage through a water bath, and wound up on to a suitable roll. The belt is made by arranging short metal filaments 150 and magnetised chuck 152, forming a frame around the chuck, and casting a liquid rubber in the mould thus formed.
Patent GB-789407-A (GB)
Title: Improvements in filling heads for rotary bottle and like filling machines
Inventor: BROADHURST STANLEY FREDERICK
IPC: B67C3/26
Filed: 1955-11-07
Abstract: 789,407. Bottling. VICKERS-ARMSTRONGS (ENGINEERS), Ltd. Sept. 26, 1956 [Nov. 7, 1955], No. 31789/55. Class 125(2). In the filling head for rotary counterpressure bottling machines described in Specification 732,240, the push rods 10, 20 for the liquid and counterpressure valves are depressed in sequence by a piston 30, the actuating fluid for which is controlled by a piston valve 33, Fig. 4, plan view operated by stationary cams around the machine. The piston is raised to inoperative position by a . spring 32.
Patent GB-452959-A (GB)
Title: Method of and apparatus for moulding pulp articles
IPC: D21J7/00
Filed: 1935-11-16
Abstract: 452,959. Moulding pulp. HEYMANN, R. D., Litchfield Turnpike, Woodbridge, Connecticut, CLARK, F. C., 246, Stuart Street, Boston, Massachusetts, and MOULDED PULP CORPORATION, 19, Dover Green, Dover, Delaware, all in U.S.A. Nov. 16, 1935, No. 31827. [Class 87 (ii)] Hollow articles are produced from pulp in a foraminous mould by introducing the pulp through a nozzle extending a substantial distance into the mould and constricted towards its discharge end. The two halves of a foraminous mould are carried by members pivoted on a mould support and a separate bottom member may be provided. The pulp is supplied from a vat through a pipe 20 provided with a valve 22 and having internal tapers 32. An auxiliary pipe 25 supplies compressed air, steam, &c. The lower end of the nozzle 30 is formed with a thickened wall 35 as large as permits withdrawal through the bottle neck, and the bore is constricted at 37. Alternatively, the wall is spun outward instead of being thickened. The restricted orifice 37 and enlarged wall 35 cause the pulp to flow up the walls of the mould with considerable velocity. A tapered collar 40 is provided to produce a neck of uniform thickness on the pulp bottle. Alternatively, a collar 41, Fig. 5, is provided to form a bottle with a flanged rim. In the form shown in Fig. 6, the nozzle is restricted and then flared as at 48 to allow the pulp to spread in the mould.
Patent GB-1044777-A (GB)
Title: Method of polymerizing unsaturated hydrocarbons of olefin series
IPC: C08F10/00
Filed: 1963-08-13
Abstract: Tri n-butyl tin hydride is prepared by reacting hexanormal butyl distannoxane (i.e. bis(tri-n-butyl tin) oxide) with methyl hydropolysiloxane and distilling the mixture under reduced pressure.ALSO:a -Olefines such as ethylene, propylene and butylene, olefines containing aromatic groups such as styrene, and conjugated dienes such as butadiene and isoprene may be homo- or copolymerized using a catalyst obtained by mixing a tin hydride compound of formula RmSnH4- m where m is 1, 2 or 3 and R is alkyl, cycloalkyl or aryl having up to 8 carbon atoms with a transition metal compound of a metal selected from Groups IVa, Va and VIa of the Mendeleef Periodic Table.  The transition metal compound may be a halide, oxyhalide, alkoxide or acetylacetonate; it is preferably a chloride or an oxychloride.  The catalyst components may be dissolved or suspended in an inert solvent and the mixing is preferably under an inert atmosphere.  The molecular weight of the polymers may be regulated by polymerizing in the presence of hydrogen or a halogenated hydrocarbon such as ethyl bromide, n-butyl chloride and vinyl chloride.  In the examples: (a) ethylene is polymerized using tri-n-butyl tin hydride and titanium tetrachloride or VOCl3 or triethyl tin hydride and TiCl4; (b) ethylene and propylene are copolymerized using tri-n-butyl tin hydride and TiCl4; (c) propylene is polymerized using tri-n-butyl tin hydride and TiCl4; (d) isoprene or styrene is polymerized using tri-n-butyl tin hydride and TiCl4; (e) ethylene is polymerized in the presence of ethyl bromide, isopropyl bromide, an aryl bromide or n-butyl chloride and the hydride, and (f) a mixture of ethylene and vinyl chloride is polymerized.
Patent GB-520902-A (GB)
Title: Improvements in or relating to fuel injection pumps or the like
IPC: F02M59/00
Filed: 1938-11-03
Abstract: 520,902. Fuel injection &c. pumps. AUTO UNION AKT.-GES.. Nov. 3, 1938, No. 31882. Convention date, Nov. 3, 1937. [Class 102 (i)] In a fuel injection or like pump comprising a drum 4 rotatably mounted in, and eccentric with respect to, a casing 1, and an eccentric ring 12 coupled to the drum by an articulated plunger 6, the latter slidably engages in a recess 5 in the drum and has sliding sealing faces which are plane surfaces or surfaces generated by a-straight line. The plunger may be of quadrangular section marking a fluid tight sealing fit between the walls of the recess and the end walls 1, 15 of the casing. Alternatively, the plunger may be cylindrical and off smaller diameter than the width of the drum 4, to engage a corresponding cylindrical bore in the drum. The plunger may be articulated to the ring 12 by means of a roller shaped pivot 13 engaging in complementary grooves in the plunger and the ring, or the plunger may be formed with a spherical or similarly shaped stud to engage a correspondingly shaped recess in the ring. In each case, the parts are held in engagement with each other by means of a compression spring 14,. the plunger preferably being hollow for this purpose. Alternatively, the spring may be dispensed with by engagement of the projection on the plunger in a dovetailed recess in the ring, said recess having spherical or cylindrical inner faces. The eccentricity of the ring 12 is adjusted by means of a pinion 11 engaging teeth 10.
Patent GB-1178479-A (GB)
Title: A Bookmarker
Inventor: ALDERMAN GEORGE FRANCIS
IPC: B42D3/14
Filed: 1967-07-11
Abstract: 1,178,479. Bookmarkers; copyholders. G. F. ALDERMAN. 11 July, 1968 [11 July, 1967], No. 31882/67. Headings B6A and B6W. A plastics bookmarker 10 is formed by a strip having a portion 10a which is attached to the rear cover of a book adjacent the spine thereof and a flexible portion 10b of reduced width which is provided with a cursor 12 and a line indicator 13 such that the portion 10b may be placed over a selected page to indicate the line at which reading was stopped. Movement of cursor 12 is limited by collars 14, 15 and flexible portion 10b may include a magnetic strip or magnetic material for retention adjacent the spine of the book by steel wire 11 which is accommodated along the spine.
Patent GB-1002766-A (GB)
Title: Improvements in gear pumps
Inventor: BLOMGREN OSCAR CLARENCE
IPC: F04C2/08
Filed: 1961-09-05
Abstract: 1,002,766. Gear pumps. COY MANUFACTURING CO. Sept. 5, 1961, No. 31935/61. Heading F1F. [Also in Division F2] A gear pump includes housing sections 21, 22, a drive gear 27 on a drive shaft 43 received in a bearing boss, e.g. 37, formed on one of the sections, and an idler gear 28 journalled on a boss 36, 38 extending inwardly from one, Fig. 8 (not shown), or both (as shown) of the sections. The housing sections and gears are formed of moulded synthetic plastics and are held together by flared metal tubes, Fig. 6 (not shown). The drive gear includes a web 42. Ports are provided in both gears, Fig. 10 (not shown) to allow fluid circulation around the supporting bearing boss or bosses for the idler gear and to protect the assembly against overheating. A sleeve of plastics or bronze material may be fixed to each of the internal cylindrical walls of the gears or to the supporting bosses therefor.
Patent GB-1055215-A (GB)
Title: Sheet feeding apparatus and method
IPC: G03G15/00
Filed: 1965-07-27
Abstract: 1,055,215. Feeding sheets. RANK XEROX Ltd. July 27, 1965 [Sept. 8, 1964], No. 31983/65. Heading B6B. The top sheet of a stack 2 is engaged by a friction member 44 which is then rotated through 90 degrees to displace the sheet relatively to the stack, and the sheet is then forwarded from the stack. The stack is supported by a platform 4 arranged between side frames 6 and urged upwardly by springs 8 so that the top sheet presses against lips 10 on four corner posts 12, Figs. 2 and 12 (not shown). A support plate 18 secured to side arms 16 of the frames 6 carries a rotary solenoid B-SOL-1 having a splined shaft 40 which can be rotated through 90 degrees, against the action of a return spring, when the solenoid is actuated. A splined sleeve 42 slidable vertically on the shaft 40 has a friction disc 44 faced with rubber &c., and a collar 48, in which the sleeve is rotatable and located therein by collars &c. 50, 52, has pins 54 engaging in slots in one end of a yoke member 58. The yoke 58 pivots about pins 62 on a fixed support 20, and is oscillatable about the pins by a lifting solenoid SOL-2 which is linked to the yoke at 68. The other end of the yoke 58 engages the shaft 30 of a dropping-roller 24 which is urged downwardly by springs 32 towards a driven feed roller 22. In operation, Figs. 3-11 (not shown), the solenoid SOL-2 is actuated to pivot the yoke 58, so that the roller 24 is raised and the friction disc 44 is lowered to engage the top sheet 70, and the disc is then rotated causing the corners thereof to be forced against the corner posts 12 to buckle and thus free the sheet from frictional contact with the sheet below. The top sheet 70 is swung to the position shown in Fig. 7 where one end lies between the rollers 22, 24, the solenoid SOL-2 is de-energized so that the springs 30 rock the yoke 58 and lower the roller 24 to grip the sheet and feed it away from the stack 2. In a modification, Figs. 13- 18 (not shown), the friction disc 44 first rotates the top sheet in one direction to free the sheet, and then rotates the sheet back to the original position. From this position, the top sheet is forwarded from the stack by a forward movement of the friction disc 44, or by a gripper mechanism. In Fig. 19 (not shown), the top sheet 70 is forwarded from the stack to feed rollers 22, 24 by a continuously rotating friction belt 72 which is lowered on to the sheet.
Patent GB-195429-A (GB)
Title: Means for and methods of reducing capacity current losses in electric cables
IPC: H01B11/12
Filed: 1921-11-30
Abstract: 195,429. Taylor, A. M. Nov. 30, 1921. Drawings to Specification. Feeder connections for polyphase systems; systems depending on the use of static transformers.-The capacity current required for charging the cores of polyphase concentric cables where the central core is worked at a higher potential than the remaining cores is obtained from substation transformers supplied with energy from the central core and feeding currents at the required potential and phase into the various cores of the cable. The application of the invention to the systems described in Specifications 170,619 and 183,964 is referred to. The secondary circuits of the transformers include sufficient reactance to enable them to deal with capacity currents only, separate transformers being employed for load currents.
Patent GB-533991-A (GB)
Title: An improved pit-prop
IPC: E21D15/18
Filed: 1939-12-13
Abstract: 533,991. Pit-props. HUMPHREYS, C. Dec. 13, 1939, No. 32125. [Class 20 (ii)] A pit-prop comprises an outer open ended tubular member 1 with a constriction 2, an inner closed-ended sliding member 10, and a plug 9 adapted to rest between one end of the inner member and the constriction and to be forced past the constrictior under load. The plug may be of wood or hard rubber or like composition and the con. striction may be reinforced by a sleeve 3 or by welding material on it. The lower end of the outer member is closed by a foot plate 5 and a notch 4 is provided to indicate the upper end of the oute member.
Patent GB-466175-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/04
Filed: 1935-11-20
Abstract: 466,175. Fluid - pressnre brakes. KERSHAW, A. G., SIMMONS, A. W., and WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Nov. 20, 1935, No. 32177. [Class 103 (i)] In a fluid-pressure brake as described in Specification 463,946, comprising an electric control device 3, including a pneumatic control attachment, and a separate driver's brake valve 5 for effecting the electric and pneumatic control respectively of the brakes, an electrically actuated interlock valve 8, a feed valve 9 and an isolating cock 10, 11 with switch contacts, these units are all mounted upon a common base plate which is provided with the ports and passages necessary for providing commmication between these devices. Specification 467,215 also is referred to.
Patent GB-1310968-A (GB)
Title: Passive stabilisation tanks
Inventor: CSUPOR D
IPC: B63B39/03
Filed: 1970-07-02
Abstract: 1310968 Passive stabilizing tanks MAIERFORM HOLDING SA 2 July 1970 [4 July 1969] 32213/70 Heading B7M. A passive stabilizing tank comprises a pair of partially filled chambers interconnected by main and by-pass ducts with means for adjusting flow through the main duct, and a damper in the by-pass duct. In Fig. 2, chambers (1, 2) are interconnected by a channel provided with a vertical partition 3 which divides it into a main duct 4 having a vertically adjustable flap 7 and a by-pass duct 6 having an adjustable damper formed by rods 15. Figs. 3 and 4 (not shown) illustrate modification in which flap 7 is replaced by a comb (16) or a pivoting perforated plate (17). In Figs. 5 and 6 (not shown) the main and by-pass ducts are arranged one above the other. Figs. 7 and 8 (not shown) illustrate the application of the invention to a tanker vessel using the cargo as damping fluid.
Patent GB-286662-A (GB)
Title: Improvements in or relating to high pressure piston or reciprocating compressors
IPC: F04B9/117
Filed: 1927-11-30
Abstract: 286,662. Sulzer FrÞres Soc. Anon. March 8, 1927, [Convention date]. Actuating pumps by fluid-pressure motors. - The piston 5 which is driven by a crank and comnecting rod and actuates the compressor pistons 6, 7, 8 through intermediate pistons 9, 10, 11 actuated by oscillating liquid columns, is proportioned so that the displacement capacities of its effective faces are greater than the displacement capacities of the corresponding intermediate pistons. The difference may compensate for loss by leakage.
Patent GB-246810-A (GB)
Title: Improvements in or relating to clocks
IPC: G04B45/04
Filed: 1925-12-21
Abstract: 246,810. Riese, A. Jan. 31, 1925, [Convention date]. Cases, dials, and hands; motionwork ; clock framework.-The clockwork mechanism 5 in the hollow base 4 drives a shaft 8 in a hollow column 3, which shaft 8 through a bevel 12 drives a toothed ring 14 having embedded in it at 18 the tip of the minute hand 16. Similarly, through gearing 23, 24, 25, the shaft 8 drives the toothed hour ring 21 having attached thereto the hour hand 19. These hands rotate freely on pin 17 in the centre of a transparent glass dial plate 2 upon which the hour numerals are etched or painted. The rings 14, 21 rotate between lugs 15, 22 in the annular dial casing 1, the arrangement being such that only the hands are visible through the dial plate, the remaining parts being hidden. Front and rear glass discs 27 are provided. The hands may be fastened in any way to their rings or they may be replaced bv glass discs attached to the rings and having the hands etched, painted, or secured thereon.
Patent GB-281676-A (GB)
Title: A method of operating an asynchronously constructed generator with a commutator cascade machine, the excitation of which is supplied at least in part through a frequency changer
IPC: H02K17/42
Filed: 1927-11-30
Abstract: 281,676. Akt.-Ges., Brown, Boveri, et Cie. Dec. 3, 1926, [Convention date]. Alternating - current induction machines. - A commutator machine 4 cascaded with an asynchronous generator 2 is excited wholly or in part by a frequency changer 7 fed by a synchronous generator 8 which is coupled with a synchronous motor 3 connected to the terminals of the asynchronous generator and with an independently regulatable driving motor, for instance a continuous-current motor 9. The machine 4 may be excited by a combination of the slip-ring voltage of the asynchronous generator and the commutator voltage of the frequency changer, and resistances, inductances or a separate exciter may be interposed. If the network frequency is to be determined by the motor 9, the motor 3 should be cut out of circuit to avoid overheating by generated current unless the resistance of the leads thereto is sufficiently high. The motor 3 may be kept in circuit if the change of slip of the asynchronous generator between full load and idle running as determined by the regulator of the main driving machine and the motor 9 is arranged to be equal to the change of slip between no load and full load when operating as a motor. If the generator 2 works in parallel with synchronous machines, proper distribution of the load between the different generators may be obtained by controlling the speed of the motor 9 in dependence upon the load on the generator 2. Alternatively, the machine 9 may be disconnected and the motor 3 connected to the network in which case the frequency is determined by the synchronous generators. The machines 3, 8 have the same number of poles, for enabling the phase position of the voltage of the generator 8 to be adjusted, the generator may be provided with two exciting windings relatively displaced by 90‹, or phase adjustment may be effected by regulatable transformers. In order to avoid disturbance when connecting the machine 3 to the network, the network voltage vector and that of the machine 3 are brought into phase either by regulation of the machines 2 or 8, or by turning the stator of the machine 3 or the position of the field poles with respect to the field magnet. According to the Specification as open to inspection under Sect. 91 (3) (a), the generator 2 may be given a synchronous character by feeding its rotor or the exciting winding of the cascade machine 4 with continuous-current. The same effect may be produced by coupling the converter group 3-8 'with the rotor of the generator 2 either mechanically or electrically. This subject-matter does not appear in the Specification as accepted.
Patent GB-137056-A (GB)
Title: Improvements in milking machine teat cups
IPC: A01J5/06
Filed: 1919-12-24
Abstract: 137,056. Ridd Co., (formerly Ridd Milking Machine Co.). Sept. 1, 1915, [Convention date]. Cow-milkers.-A teat cup of the kind having a flexible lining, the interior of which is subjected to continuous suction and the exterior to alternate suction and pressure, is constructed in such a way that the upper part of the teat will first be squeezed lightly and then the lower portion will be squeezed more strongly and subjected to a downward pulling action. With this object, the lining is constructed so that its responsiveness to the pulsating changes of pressure is less at the top than at the bottom, and so that its lower end may bulge downwards. The wall of the lining A decreases gradually in thickness downwards and the internal diameter increases. The lining is provided with a flange B to fit the casing C at the top, and its lower end is stretched and doubled over the casing and secured by a cover D, which forms a chamber E leading to the nipple F A metal ring G fits in the upper end of the lining. Ribs H and grooves J may be provided inside the lining A.
Patent GB-172317-A (GB)
Title: Improvements in rear axles with change speed gear for motor vehicles
IPC: F16H3/16
Filed: 1921-12-02
Abstract: 172,317. Gauthier, G. H. Morin-. Dec. 2, 1920, [Convention date]. Axles and axle structures.-Change-speed gearing is enclosed in the rear-axle casing with the bevel pinion 10, which drives the bevel wheel 21 en the axle, situated behind the centre of the axle. One road wheel only is driven, this wheel being fixed on the axle 20. The axle casing comprises two main parts 16, 17 together with a cover 15 having its joint in the plane of the axis of the countershaft 14 of the gear.
Patent GB-839111-A (GB)
Title: Edge shaping gun for glass
IPC: C03B13/04
Filed: 1958-10-10
Abstract: 839,111. Rolling sheet glass. PITTSBURGH PLATE GLASS CO. Oct. 10, 1958 [Jan. 9, 1958], No. 32381/58. Class 56. An edge shaping gun 10, one to be positioned at each end of a pair of glass ribbon forming rolls 16, comprises a metal member 11 shaped to be accommodated within the substantially V-shaped space between the rolls 16 to provide a glass contacting surface 14 to shape by heating an edge of the glass ribbon, the gun being electrically heated through bus bars 12, 13 and the member 11 being dimensioned to provide a path of substantially constant crosssectional area for electrical flow adjacent the surface 14 to ensure a substantially uniform temperature along the surface 14. The bus bars 12, 13 are of a cross-section to provide little resistance to the passage of current and are welded to the member 11 which has a flange 17 so that the weld will not affect the resistance of the main surface. The surface 14 is at an angle a to the plane perpendicular to the axes of the rolls for controlling the width and edge shape of the ribbon.
Patent GB-447326-A (GB)
Title: Improvements in dry-back marine and economic type steam boilers and water heaters
IPC: F22B7/12
Filed: 1934-11-12
Abstract: 447,326. Return tube steam boilers. KIRKE, P. ST. G., Givons Manor, Leatherhead, Surrey. Nov. 12, 1934, No. 32527. [Class 123 (ii)] In a dry-back boiler, to enable low grade fuel to be burnt smokelessly with little excess of air, the furnace gases are directed in a long path through a brick-lined combustion chamber which provides at least one cubic foot of combustion space for every 30 to 45 thousand B.T. units liberated per hour at normal load. The gases pass from the flue 12 into the combustion chamber under a fire brick arch 23 having a downwardly sloping lip 24 at its rear end. The return tubes 11 may be sinuous, as described in Specification 388,227, and the end 12 of the furnace flue may be of reduced diameter, as described in Specification 447,341.