baber/WOPTO huggingface dataset:
Patent GB-476188-A (GB)
Title: Improvements in high frequency vacuum electric tubes and in the circuits thereof
IPC: H01J21/06
Filed: 1936-06-19
Abstract: 476,188. Valve amplifying circuits. LUDLOW, J. H., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 19, 1936, No. 17150. [Class 40 (v)] In a high-power screen-grid amplifier for operation on ten metres or less wavelength having a screen-grid byepass condenser or a cathode byepass condenser of annular form and encircling the valve or otherwise closely associated with the valve as described in Specification 414,753, the earth side of the anode condenser or the anode inductance is connected, preferably by a heavy copper strap 16, to the screen-grid. In this way the size of the screen-grid byepass condenser is reduced since the high frequency current flowing through this condenser is reduced. The anode condenser may be of the evacuated type and may be combined with the valve, as described in Specification 476,187. The strap 16 is preferably arranged close to the earth screen 4 in which the valve is mounted. The screen and the strap may be clamped together with a layer of insulation between them or the space between the strap and the screen may house a rectangular condenser of low inductance and replacing the annular condenser 5 which connects the screen-grid to the screen 4. Fig. 5 shows a push-pull arrangement with the output inductance 2 connected between the anodes and the input inductance 9 connected between the grids.
Patent GB-222566-A (GB)
Title: Improvements in or relating to annealing furnaces
IPC: C21D9/56
Filed: 1923-07-03
Abstract: 222,566. Jonas, J. K., and Hunt, J. T. B. July 3, 1923. Annealing-furnaces; muffle furnaces.-Relates to annealing-furnaces of the type having a long tubular member c downturned at the ends d to dip into the liquid troughs e and having inert gas passed into the tubular member, the invention consisting in the provision of a cooling chamber b at the rear of the furnace a, and in feeding the wire and other material continuously from a drum or holder.
Patent GB-1501995-A (GB)
Title: Pipe connections
IPC: F16L19/04
Filed: 1975-04-25
Abstract: 1501995 Pipe coupling ROBERT BOSCH GmbH 25 April 1975 [27 April 1974 1 Feb 1975] 17168/75 Heading F2G A pipe connector comprises a nipple member 1 having at its outer surface an annular recess 5 wherein a flange of a clamping nut 7 is unreleasably secured; and a screw-threaded connecting member 18 secured to a pipe portion 10 of sealing surface provided upon the nipple end takes preferably a part-spherical 13<SP>1</SP> or frustoconical form 13 for forming a metal to metal seal with a flared mouth portion of the pipe. In alternative embodiments (not shown), a metal to metal seal is formed directly between the nipple end and a frusto-conical seating at the mouth of the connecting member; the pipe being soldered to the member either coaxial with, or perpendicular to, the axis of the connection-the latter providing a "T" junction.
Patent GB-421134-A (GB)
Title: Hair comb cleaning device
IPC: A45D24/46
Filed: 1933-06-16
Abstract: 421,134. Cleaning hair combs. VERPILLEUX, A. M., 24, Dynham Road, West Hampstead, London. June 16, 1933, No. 17212. [Class 131] A hair comb cleaning device comprises a cylinder 1 provided with a slot 5 through which the comb is 6 inserted, the cylinder being fitted with a manually rotatable brush 10<A> adapted to engage the teeth of the comb and with a brush 18 fixed in a removable sump 14 and adapted to engage with, and remove the dirt from, the rotatable brush. The rotatable brush comprises wire card provided with two sets of brushes 10<B>, 10<C> secured to a core 11.
Patent GB-470208-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D9/04
Filed: 1936-06-22
Abstract: 470,208. Centrifugal pumps. SOUTHERN, J., FRANKLIN, A. C., and WORTHINGTON-SIMPSON, Ltd. June 22, 1936, No. 17279. [Class 110 (i)] A water-ring pump 8, mounted with and priming a centrifugal pump 3, is unloaded when pump 3 is primed by release of its sealing-water through a valve controlled from the suction of pump 3, this valve returning the sealing-water when gas or air enters the suction. The pump 8 has a chamber 14 for reserve sealing-water, a suction chamber 18, and a delivery chamber 19. Chamber 19 connects with a trap connected to atmosphere and returning water to chamber 14. A valve 39 controls passages 20, 21 leading to the rotor chamber 13, passages 29, 30, 31 leading to chamber 14 and passages 32, 34 leading to chamber 18, passage 32 leading also to float chamber 41 in the suction of pump 3. Float 44 is connected by a lost-motion link 51 and centreless levers 46 to valve 39. When float 44 is down, as shown, chambers 13, 14 are connected together, and chambers 18 and 41. When pump 3 is primed, float 44 rises and passage 21 supplying make-up water is closed, passage 32 being open to atmosphere. The sealing-water will be discharged into chamber 14 and pump 8 relieved of all load, merely revolving in air. Admission of gas or air to the suction float chamber 41 will return valve 39 and restore sealing-water to pump 8.
Patent GB-801280-A (GB)
Title: Improvements in or relating to reinforcing bars for concrete
IPC: E04C5/03
Filed: 1956-06-05
Abstract: 801,280. Reinforced concrete. KLOCKNER - HUTTENWERKE HASPE AKT.- GES. June 5, 1956 [May 11, 1956], No. 17308/56. Class 20(4) A steel reinforcing bar for concrete of generally polygonal cross-section but having rounded corners and concave lateral faces, has arranged in said faces straight projections, such'as a and b, which are of a length which is substantial in relation to the dimensions of their cross sections, which do not project beyond a line connecting adjacent corners of the polygon and which are at an angle of less than 90 degrees to the axis of the bar which is preferably twisted, Fig. 3.
Patent GB-530017-A (GB)
Title: Improvements in or relating to power drive devices and liquid dispensing apparatus employing such power drive devices
IPC: B67D7/16
Filed: 1939-06-14
Abstract: 530,017. Dispensing liquids. WAYNE PUMP CO. June 14, 1939, No. 17396. Convention date, July 27, 1938. [Class 116] [Also in Groups XIX and XXIV] A power drive device, applicable to the driving of registering or indicating mechanism in a liquid-despensing apparatus, includes a driven shaft 68 or 102, a drive shaft 82, driving means 64 frictionally connected to the shaft 82, and an irreversible connection between a control shaft 58 and the shaft 82, so that the shafts 82, 68, 102 are driven from the means 64 only when the shaft 58 is in rotation. As shown in Fig. 2, the member 64 is a motor-driven pulley connected through a friction clutch 106 to the shaft 82, which drives through bevel gearing 96 a shaft 68 connected through change-speed gearing 72 to a registering mechanism and the shaft 102 of a sales-slip issuing or other device 104. The control shaft 58, wnich may be the shaft of a liquid meter 38, carries an irreversible worm 60 meshing with a worm wheel 78 on a sleeve 80 rotatable on the shaft 82 and carrying a ratchet wheel 84 engaged by pawls 90 on a pawl plate 88 secured to the shaft 82, so that the shaft 82 is driven from the member 64 in synchronism with the shaft 58. In modifications, (a) the registering mechanism is driven from the bevel gear 96; (b) the driving-means for the drive shaft 108, Fig. 5, comprises a pulley 126 connected through a friction clutch 118 to the worm wheel 112 in mesh with an irreversible worm 114 on the meter shaft 116, the shaft 68 of the registering mechanism being driven as before through bevel gearing 110. The drive is shown as applied to a liquid-dispensing device comprising a motordriven rotary pump forcing liquid through a meter 38 to a valved outlet fitting controlled conjointly with a motor switch and with reset means for the registering device.
Patent GB-1262528-A (GB)
Title: Improvements in and relating to dispensing pumps
Inventor: KUTIK LOUIS FRANK
IPC: F04B43/00
Filed: 1969-04-03
Abstract: 1,262,528. Diaphragm pump. L. F. KUTIK and E. W. GRONEMEYER. April 3, 1969 [April 4, 1968], No. 17428/68. Heading F1A. A diaphragm pump for dispensing liquids from a container comprises a housing 12 and a diaphragm 14 defining a compartment having an inlet 42, and an outlet passage 50 and an integral valve-member 16 having a hinged flap 58 covering a valve seat 54 forming an inlet valve, an annular flap 56 having a free deflectible resilient edge 60 engaging, and self-biased against, a cylindrical surface 32 on the housing 14 forming an outlet valve and a hollow circular stem 38 seating in an annular groove 36 in the housing 14 surrounding the inlet passage 42, forming a seal blocking flow along a path between the valves when either valve is open. The diaphragm 14 has a plurality of downwardly directed protrusions 74 engageable with the flap 56 when the central portion 68 of the diaphragm is depressed, to facilitate location of the flap 56 on assembly of the pump. The complete pump may be formed from plastics material by injection moulding.
Patent GB-301713-A (GB)
Title: Improvements in metal nails for use in fixing wall-board, plywood, carpets, woodworkand the like
IPC: F16B15/04
Filed: 1928-06-16
Abstract: 301,713. Wells, A. R. June 16, 1928. Nails.-A nail for fixing wall boards, carpets, &c. to woodwork &c. is stamped from sheet metal blanks and has at least two shanks, connected by a head of the same thickness and square to the shanks, the ends of the shanks being bevelled on the insides, Fig. 11, so that the shanks diverge, or on the outsides, Figs. 14 and 15, so that the shanks converge, when driven into the wood &c. As shown in Fig. 14, the head is shaped at the ends so that when driven the head lies flat as shown in Fig. 15. The shanks may be barbed or serrated as shown in Fig. 19.
Patent GB-1022774-A (GB)
Title: Improvements in or relating to pneumatic tyres for vehicle wheels
IPC: B60C15/00
Filed: 1964-04-28
Abstract: 1,022,774. Pneumatic tyres. PIRELLI S.p.A. April 28, 1964 [May 13, 19631, No. 17496/64. Addition to 968,257. Heading B7C. A pneumatic tyre as disclosed in the parent Specification is modified in that the whole of the resilient tapering strip 5 is disposed axially outwardly of the carcass ply or plies 2 and of the turn-up 4 of each ply, the strip being extended at 6 whereby it is exposed at the bead region of the tyre so as to protect the casing plies against damage by the wheel rim flange without the provision of conventional chafer strips.
Patent GB-948147-A (GB)
Title: An improved photographic recording unit
IPC: G03B27/465
Filed: 1960-05-18
Abstract: 948,147. Photographic copying units. E. I. McLAREN, and J. H. M. HOGAN. May 18, 1960 [May 25,1959], No. 17504/60. Heading G2A. A photographic recording unit (for a library) comprises a camera arranged over a platform which is illuminated by lamps and has, within the field of view of the camera, a compartment for a card, a magazine of cards, and a recess adapted to receive a book which on introduction therein operates a control switch to set in operation an electrical control system whereby the lamps are energized, the exposure mechanism of the camera is operated and then the film-winding is operated. The Specification gives details of a circuit controlling the sequence of events using slugged relays, the relay solenoid operating the camera shutter becoming energized during the timeinterval in which another relay is causing the lamp circuit to be closed. As shown in Fig. 4, the camera 4 is mounted in a vertical column 2 carrying hooded lamps 6 for illuminating the platform 1 (Fig. 3) which carries a magazine 27 containing cards the top one of which is visible through window 28 and can be removed after photographing (e.g. by a librarian) by finger friction applied through slot 50. A further card 32 (e.g. borrower's library identification card) is placed in a tray 25 from which it is ejected, after photographing, by a solenoid-operated button 21 controlled by the control system. Insertion of a book 29 in recess 30 in the platform operates a control switch and the book 29 and cards 26, 25 are photographed. A manually-adjustable date-band visible in window 33 is also included in the photograph. The film strips used have a hole near each end and the arrangement is such that the film runs continuously during taking up of the leader strip of a new film reel, but an electrical contact is then established through the hole and a lever 13 actuates a further lever 14 which is reciprocated by relays 16a, 16b, to operate an escapement mechanism in the gear train of the motor-driven film take-up mechanism 9, 10, 11, 12 whereby continuous take-up of film is arrested and proceeds frame by frame on successive shutter operations. The drum 9 rotates one revolution, under spring-loading, in each cycle of operations and is re-set after each film-winding movement by a reduced drive from the slow speed electric motor 10 which is switched off at 12 when the drum 9 has been re-tensioned. At the end of a film-roll, the lever 13 is again operative in restoring continuous running of the take-up mechanism. The cards 26 are pressed upwards towards the underside of the platform 1 by a counterweight 47 acting through a pivoted lever on a platform 45 forming the base of the magazine 27. The top-most card is withdrawn at slot 51 and the platform 45 is guided as it moves upwardly by pillars 52. The other arm 48 of the pivoted lever is visible against a scale 57 in the housing 55 below the magazine and indicates the number of cards in the magazine.
Patent GB-561661-A (GB)
Title: Improvements in or relating to the manufacture of composite metals
IPC: B22D19/00
Filed: 1942-12-09
Abstract: 561,661. Casting composite articles. PROCTOR, W. F., and WEBB, G. W. Dec. 9, 1942, No. 17509. [Class 83 (i)] Culinary utensils, pistons or other composite metal articles are made by placing an insert in a mould, casting another metal into the mould under pressure and exerting pressure on both metals, preferably by hydraulic means, until the casting solidifies. The molten metal may be cast at a temperature within its viscous range and the insert may have projections &c. to improve adhesion. An aluminium or magnesium alloy may be thus cast onto steel, ferrous alloy, copper, nickel or chromium base alloy or magnesium alloy may be cast onto aluminium or copper alloy. An aluminium spun or pressed insert 2 may have magnesium-aluminium alloy near its solidification point pressure-cast at 4 and then have pressure applied by a hydraulically-operated die 1 to form a utensil. The aluminium lining may be plated with chromium and the outside, also have an applied chromated or other protective coating.
Patent GB-668192-A (GB)
Title: Improvements in or relating to polymerisable orango-polysiloxanes
IPC: C08G77/08
Filed: 1949-07-01
Abstract: An infusible, toluene soluble organo-polysiloxane is made by polymerizing a hydroxyl-free, thermoplastic organo-polysiloxane containing from 0.9 to 1.8 methyl and/or aryl radicals per Si atom, either (a) by dispersing in the siloxane an alkali metal or lead salt of a carboxylic acid in a proportion of one metal atom per 50 to 10,000 Si atoms, and heating the siloxane at a temperature above 115 DEG  C., or (b) by heating the siloxane in contact with the alkali metal or lead salt in the above proportions to a temperature above 115 DEG  C., e.g. 150 DEG  to 300 DEG  C. The solid or solution of the metal salt may be mixed with the solvent-free siloxane or both may be dissolved in a mutual solvent.  The salt may be formed in situ by dispersing either the hydroxide of the metal or the acid in the siloxane and adding the other.  In examples: (1) a siloxane containing (CH3)2SiO, C6H5SiO1.5, and CH3.SiO1.5 units was rendered hydroxyl-free by refluxing with a toluene solution of KOH; separate portions of the resulting product were then mixed with sodium stearate, sodium acetate, potassium acetate, lead acetate, lead-2-ethylhexoate and lead naphthenate, with or without the aid of solvents such as toluene and isopropanol; (2) a hydroxyl-free siloxane containing C6H5.CH3SiO, C5H5.SiO and CH3SiO units was mixed with lead 2-ethylhexoate; (3) a mixture of CH3SiCl3, and (CH3)2SiCl2 was hydrolysed in benzene solution, and the resulting polysiloxane refluxed in benzene with KOH.  The oil thus obtained was mixed with lead naphthenate; and (4) a hydroxyl-free polysiloxane containing monotolyl- and monomethyl-siloxane units was mixed with potassium benzoate.  Sodium benzoate is also referred to.  In application for the production of coated and impregnated materials, a hydroxyl-free polysiloxane which is liquid at or below 115 DEG  C. is mixed with the catalyst, base members are then dipped into the melt and thereafter heated to a temperature above 115 DEG  C.  Specifications 542,655, 584,911, 597,834 and 659,013 are referred to.
Patent GB-1372298-A (GB)
Title: Apparatus for portioning and twisting pasty substance in a tubular sleeve
IPC: A22C11/10
Filed: 1972-04-17
Abstract: 1372298 Filling tubular casings ALBERT HANDTMANN 17 April 1972 [29 April 1971] 17536/72 Heading A2B A method for proportioning and twisting off a pasty substance in a flexible tubular sleeve, especially in the manufacture of sausages, by intermittently actuating a displacement pump having at least two alternately effective displacement chambers to expel individual portions of constant weight of the substance through a filling nozzle into the sleeve at timed intervals, drawing the sleeve from the nozzle and operating a twisting off device for twisting the sleeve between two filling operations, is characterised in that the filling interval is shorter than the filling time and the twisting off operation is carried out with a speed varying between a maximum and a minimum, overlapping the time of the filling process, said maximum occuring during the filling interval. A corresponding apparatus is also claimed.
Patent GB-709570-A (GB)
Title: Improvements in or relating to the production of oxygenated organic compounds
IPC: C07C27/22
Filed: 1951-07-25
Abstract: Aldehydes are made by cracking a fraction obtained by distillation of an oxo-synthesis product and which boils above the boiling range of the main aldehydic product.  The aldehydes formed are similar to those of the synthesis.  Preferably the synthesis products are first separated for removal of gaseous effluent and when the feedstock has at least 3 carbon atoms the liquid phase so obtained is distilled to give an olefinic fraction, an aldehydic fraction and a high boiling fraction.  Cracking catalysts may be present, typical of many specified being pumice, activated alumina, silica-alumina gels containing urania, titania or manganese oxides, calcined bauxite and kaolin.  Temperatures of 100-350 DEG  C. and pressures of 1-20 atmos. are indicated. Preferred are synthetic silica-alumina gel catalysts at 150-300 DEG  C. and 1-10 atmos.  With ethylene the pressure should ensure condensation of the aldehyde at normal cooling water temperatures. Liquid flow rates of 0.5-5.0, preferably 1-3 vol./vol./hour, are specified.  Activity of catalyst may be restored by usual methods. Thermal cracking temperatures of 150-450 DEG  C. and pressures of up to 500 p.s.i. are indicated.  Products from mono-olefines of 2-9 carbon atoms are preferred for treatment.  After distillation of the required aldehydes from the cracked products higher aldehydes remain which may be hydrogenated to alcohols, e.g. starting from propylene a mixture of butanols and C8 alcohols may be obtained.  Cobalt carbonyl or hydrocarbonyl prepared outside the reaction zone are preferred in the oxo synthesis as catalysts.  In examples, propylene is converted to butyraldehydes by an oxo-synthesis and high boiling products from the aldehyde distillation cracked to give an increased yield of butyraldehydes, and isobutene similarly treated to yield isovaleraldehyde with some 2-methylbutene-2.  A residue after distillation of butyraldehydes obtained by cracking is hydrogenated over nickel-on-kieselguhr and the product saponified to yield butanols and a C8 alcohol fraction; formic and butyric acids also being recovered from the saponification products.  Specifications 702,191, 702,192, 702,195, 702,196, 702,203, 702,204, 702,217, 702,221, 702,222, 702,224 and 702,242 are referred to.
Patent GB-922684-A (GB)
Title: Improvements in or relating to the extraction of xylose from vegetable material
IPC: C13K13/00
Filed: 1961-05-15
Abstract: In the production of xylose, vegetable material containing hemicelluloses, e.g. fir chips, beechwood chips, chestnut wood residue after tannin extraction, bagane, is pressed to reduce its moisture content to below 45%, and is then subjected in a closed p vennel, e.g. a continuous digester, to the action of no more sulphur dioxide solution than it can completely absorb, the treatment being effected at 60 DEG  to 130 DEG C., for from 1 to 6 hours, whreafter the material is pressed to yield a solution of high xylose concentration from which xylose may be crystallized.  The pressed material is washed with water or dilute xylose solution from a second wash and pressed again to obtain a liquid to which sulphur dioxide may be added to prepare a solution for treating a fresh batch of vegetable material.
Patent GB-141656-A (GB)
Title: Method for the heating of material or the performance of chemical processes in electrical furnaces, together with apparatus intended therefor
IPC: H05B3/60
Filed: 1919-07-16
Abstract: 141,656. Aktiebolaget Kvafveindustri. April 12, 1919, [Convention date]. Electrode furnaces. -A furnace in which the charge continually traverses one or more heating zones is provided with two pairs of electrodes, one pair A, A', Fig. 1, being connected to two windings 4, 5 of a 3-phase transformer in series, while the other pair B, B<1> is connected to the third winding 6. The lines joining the electrodes of the two pairs are at right angles. The shaft may be oblong, square, or octagonal, or as shown in Fig. 2, may be octagonal above and rectangular below, two or more sets A, B, of four electrodes each being provided. It may comprise an outer wall 7 of brick and an inner wall 8 of chamotte, separated by kieselguhr 9. The furnace is suitable for the treatment of metallic oxides and cements. According to the Specification as open to inspection under Sect. 91 (3) (a), a neutral electrode may be provided; also three-phase currents may be supplied symmetrically to three or six electrodes. This subject-matter does not appear in the Specification as accepted.