baber/WOPTO huggingface dataset:
Patent GB-768193-A (GB)
Title: Prism field glass
Inventor: KOEHLER HORST
IPC: G02B23/00
Filed: 1955-03-10
Abstract: 768,193. Optical systems. ZEISS-STIFTUNG, C., [trading as ZEISS, C., [Firm of]]. March 10, 1955, No. 7057/55. Addition to 734,248. Class 97(1) In a prism field glass system according to the parent Specification chromatic magnification difference due to the objective is reduced by forming the prism of glass in which the quotient nF - nC/nD<SP>2</SP> is: greater than 0.0055 where nF, nC and nD indicate the refractive indices for the Fraunhofer lines F, C and D. The ocular may include outer cemented menicus components, concave outwards, that facing the eye being a doublet with the reciprocal of the radius of curvature of its cemented surface between -1/15 and +¢ of the ocular focal length. Numerical data are given for one example of the field glass system' shown.
Patent GB-535803-A (GB)
Title: Treatment of heavy hydrocarbon charging stocks
IPC: C10B55/00
Filed: 1939-09-11
Abstract: 535,803. Cracking hydrocarbon residues. HOUDRY PROCESS CORPORATION, and HOUDRY, E. J. Sept. 11, 1939, No. 7118/40. Divided out of and addition to 524,116. [Class 32] In the process of the parent Specification the operating conditions are so controlled that the temperature of the coking zone does not fall below 800‹F. nor rise above 950‹F., the partial pressure of the hydrocarbon vapours does not exceed two atmospheres and may be below one atmosphere, the quantity of liquid sent into the coking zone ranges from 10-50 per cent. of the combined charge of hydrocarbon and vaporizing medium and the hydrocarbon vapours remain in the coking zone less than 50 and, in many instances, less than 20 seconds. Part, or the whole, of the charge may be delivered through pipe 4 tangentially to the conical portion 3b of the coking zone, steam being at the same time admitted through a pipe 6. The temperature of the coking zone is maintained by a suitable heating jacket.
Patent GB-556100-A (GB)
Title: Improvements in or relating to machines for making dental lathe brushes
IPC: A46D3/06
Filed: 1942-05-26
Abstract: 556,100. Drilling and tufting brushes. HALL, J. May 26, 1942, No. 7123. [Class 83 (iii)] [Also in Group XXIII] A machine for drilling and tufting circular brushes, such as those used in dentistry, has each stock holder pivoted to allow the inclination of the stock to be changed between successive rows of holes. When changing position from one row of holes to the next the spacing of the holes is automatically staggered. The stocks 10 are mounted between clamping washers 22 together with making up washers 21 according to the width of the stocks, on pins 6 carried by holders 1, trunnioned at 2 in bifurcated heads 3 by which the stocks are fed to the drilling and tufting means. The trunnions are resiliently mounted at 7 so that a cam face 8 is held against a fixed projection 9 to maintain an even depth of hole. Indexing of the stocks is effected by pawls 26, engaging ratchet wheels on the pins 6, and carried by levers 27 oscillated by cam means during each feed cycle. The levers at the drilling and tufting station are linked by a cross rod 28 and this carries a tappet arm 31 engaging cam pins 32 as the holders I are rocked preparatory to drilling a further row of holders so that the rod 28 is moved axially against a control spring sufficiently to feed the ratchet wheels one tooth and thus stagger the holes ; two teeth being the feed imparted by the indexing mechanism. The holders 1 are connected by a crossbar 12 and this carries an arm 13 and a handle 35. The arm straddles a slotted bar 15 carried by a rod 16 and has a two part roller 14 engaging the slot. The rod 16 slides in a fixed guide 17 and is held against a stepped cam bar 11 that is operated manually between successive rows to permit the rod to descend one. step and so works the holders. A notched lid 18 is engaged by a locking lever 19 to hold the bar 61 in its adjusted position. To reset the machine for drilling a fresh stock, the holders 1 are raised by the handle 35 permitting the cam bar 11 to be restored to its initial position. To enable the distance between the rows of holes to be adjusted the arm 13 is secured in a slot in the bar 12 so that the distance between the roller 14 and the axis of the trunnions 2 may be adjusted.
Patent GB-589271-A (GB)
Title: Improvements in steam heated radiators
IPC: F24D19/10
Filed: 1945-03-21
Abstract: 589,271. Steam radiators. STILL & SONS, Ltd., W. M., and STILL, F. G. March 21, 1945, No. 7140. [Class 64 (ii)] In a steam-heated radiator, of the type described in Specification 327,875, [CLass 64 (ii)], which employs the difference between the expansion of the radiator body and a wooden rod to control the inlet valve for the steam, the wooden rod 11 is contained within a metal tube 7, to prevent contact of the rod with the steam. The tube slides freely over a spigot 6, adjustably positioned in a threaded boss 5 to control the operating temperature, and through the bush 8 in the radiator body. Operating force is applied to the valve by the reaction between the end of the rod and the spigot 6.
Patent GB-599923-A (GB)
Title: Improvements in or relating to valves
IPC: F16K49/00
Filed: 1945-03-21
Abstract: 599,923. Cooling valves. BLAW-KNOX CO. March 21, 1945, No. 7149. Convention date, March 3, 1944.[Class 135] A water-cooled valve for controlling the flow of hot gases comprises a metal case 10, Fig. 3, lined with refractory material and having inlet and outlet passages 12, 13 respectively and a laterally extending pocket 48, Fig. 1, which houses a valve closure member 34 when in its open position. The pocket is formed on one face with a water-cooled panel 17 having a seat 18 and a bushed hole 33 through which passes an operating shaft 32 which supports the closure member. The closure member is guided in its opening movement by ribs 27, Fig. 2, and is assisted in making a tight closure by its inclination. Actuation is by the operation of a hydraulic cylinder 40 pivoted on the pocket at 41 and having a piston-rod connected at 42 to a lever 39 carried on the shaft 32. Cooling-water circulates through the shaft, the closure member and the seat. In a modification, the shaft passes through the refractory-lined face of the pocket instead of the water-cooled panel and the guide ribs may be in the form of watercooled tubes. In another arrangement, the closure member controls the flow of hot gases from either of two ducts to a third duct, or may control the transfer of hot gases from one to the other of these ducts via the third duct.
Patent GB-309907-A (GB)
Title: Method of grading planting material of latex-containing trees and tapping tool for this purpose
IPC: A01G23/10
Filed: 1929-03-05
Abstract: 309,907. Cramer, P. J. S. April 17, 1928, [Convention date] Drawings to Specification. Tapping trees.-Young rubber &c. trees are tapped at 9 to 12 months by making a series of vertical incisions in the bark at about the same moment and grading the trees by noting the latex yield. A tool for tapping the young rubber trees may consist of a parallel series of short knives spaced about 1¢ inches apart and perpendicular to a flexible backing.
Patent GB-1279748-A (GB)
Title: Improvements in or relating to fluid control valves
Inventor: CASSIDY RONALD FREDERICK
IPC: F16K31/363
Filed: 1970-02-16
Abstract: 1279748 Pressure regulators NORMALAIR. GARRETT (HOLDINGS) Ltd 19 April 1971 [16 Feb 1970] 7296/70 Heading F2V [Also in Division G3] A pressure regulator has a closure member 10 actuated by a differential piston 17 on which acts the pressure in annular chamber 18 and the pressure in chamber 22. Upstream pressure is communicated to chamber 18 via adjustable pressure reducing valve 13 and is communicated to chamber 22 via valve 13, restriction 20 and solenoid valve 21 which normally closes vent 31. The pressure communicated to chamber 22 is regulated by vent valve 38 which is responsive to downstream pressure so that the closure member 10 is moved in response to downstream pressure to maintain the latter constant. The regulator is closed by actuation of valve 21 to vent chamber 22. Butterfly and poppet valves may be similarly actuated.
Patent GB-921138-A (GB)
Title: Apparatus for the manufacture of reinforced hose
Inventor: EVANS COLIN WYNNE
IPC: B65H57/14
Filed: 1960-03-02
Abstract: 921,138. Covering cores by winding. DUNLOP RUBBER CO. Ltd., and LARMUTH & BULMER Ltd. March 29, 1961 [March 2, 1960], No. 7310/60. Class 83 (4). [Also in Group XXVIII] Apparatus for the manufacture of hose having an external reinforcement of helically wound wires 6, comprises a carrier member 3, mounting means 4 for a number of wire-carrying bobbins 5, a straightening device 7 for receiving and straightening the wires from each bobbin, an annular distributing device 19 through the centre of which a hose 12 of elastomeric material is passed, and means for guiding and wrapping the wires from the device 19 on to the hose. The carrier member 3 and devices 7, 19 are rotatable together about the hose whereby wires may be drawn from the bobbins and wrapped around the hose as the latter is drawn longitudinally and without rotation through the guide means so as to apply the wires to the tube in helical manner. As shown, the hollow drum 3 is mounted on a hollow shaft 11 driven by a motor 14, and the shaft carries a collar 15 supported on a bearing 13 and provided with apertures through which the wires are led from the devices 7 to a distributing disc 19 supported by the collar; the wires extend to a hollow cylindrical guide member positioned on a yoke 21 movable along guide rails 20 by a lead screw 22, that member facilitating wrapping of the wires about the tube 12 which is drawn through the shaft 11 by a draw-off device 28. The devices 7 comprise grooved rollers 9 carried by a bracket 8 and arranged with the axes thereof parallel to a tangent to the drum 3 on the respective longitudinal row of bobbins 5; the wires follow a meandering path through the rollers.
Patent GB-272602-A (GB)
Title: Improvements in body harness or safety belt devices for workmen
IPC: A62B35/00
Filed: 1926-03-17
Abstract: 272,602. Hanley, A. March 17, 1926. Body harness. - In safety harness of the type described in Specification 28782/12, the leg and shoulder straps are duplicated, the shoulder straps are embraced by a loop strap at the back, and one pair of shoulder straps is provided with a crook link. As shown, the apparatus comprises, as in the apparatus of prior Specification mentioned, a belt B<1>, leg straps D<6>, D<7>, and shoulder straps C<6>, C<7>. In addition to these parts there are provided belt parts B<2>, B<3>, J<1>, J<2>, belt grip links X<1>, X<44>, and X<5>, buckle N<3>, spring hook H<1>, link G, hook S<6>, fixed tool socket S<1>, loose tool socket S<2>, and shackle k<1>. The shoulder straps C<6>, C<7> do not cross at the back but are joined together by a short strap. Each of one pair of shoulder straps is provided with a crook link, which is either attached to its strap or loosely mounted thereon for attachment to the sling. The additional shoulder and leg-straps C<8>, C<9> are shown in Fig. 7 with a crook link R<4> for connection to a sling, a trouser grip H<6>, and leg straps D<8>, D<9> . Various buckles or connecting links for different purposes are described and illustrated in the Specification.
Patent GB-307403-A (GB)
IPC: F17B1/14
Filed: 1929-03-06
Abstract: 307,403. Wagner, R. March 6, 1928, [Convention date]. Holders.-In order to prevent explosions, a gas holder of the vertically moving closure disc type is provided with an annular roof 3 which may be covered with wire netting 4. Rain &c. falling on the disc 5 passes through ,a siphon 6 into a shallow sump 7 at the base of the holder from which it may be drained away through a pipe 8 and another syphon. The holder is provided with external galleries 9, guiding means 10, and inlet and outlet pipes 11, 12.
Patent GB-498579-A (GB)
Title: Improvements in or relating to articulated driving belts or chains for use with v-groove pulleys
IPC: F16G5/18
Filed: 1938-03-09
Abstract: 498,579. Driving-belts. QUESTER, C., QUESTER, K., and TOGEL, W. March 9, 1938, No. 7369. [Class 80 (i)] An articulated belt for use with V-groove pulleys comprises a chain composed of opposite parallel side plates articulated together in laterally spaced relation by links and along both flanks of which are mounted wedgeshaped friction layers which conform to the shape of the pulley and are formed as independent endless bands. The side plates 3 are connected by links 6 and bolts 7 and receive the friction layer 1 which is a continuous piece secured either by bending over the plate as in Fig. 4, or a number of continuous layers secured by an undercut or wedging inner surface of the bent-over part 3. The layers are supported in engagement with the upper gripping edges of the plates 3 by pins 5. Where the belt has to pass over small pulleys, the friction layers may be slotted as at 8, Fig. 5, up to the neutral plane and the support pins 5 engage the bottoms of the slots.
Patent GB-575731-A (GB)
Title: A relay responsive to sound waves
IPC: H04R23/00
Filed: 1940-04-24
Abstract: 575,731. Actuating apparatus by sound. BEAUVAIS, G., LEVY, J. C. MONYS-, and OPPENHEIMER, R. S. April 24, 1940, Nos. 7393 and 7394. Convention dates, April 25, 1939, and June 27, 1939. [Class 118 (ii)] [Also in Group XXXVII] Sound waves impinging on a diaphragm 5 set into vibration a blade 7 the end of which engages a broken ring 8 which is thereby caused to rotate. The blade 7 is tuned to a particular frequency and in the form shown, the ring 8 is suspended from it and on rotation one end of it will come into engagement with a contact 9. In a modification, Fig. 3 (not shown), the ring is suspended from two blades of different natural frequencies which are set in vibration by a wire frame connected to the diaphragm. The ring rotates one way or the other to close a corresponding circuit according to the nature of the sound falling on the diaphragm. Two relays responsive to different sounds may be connected in series so that the circuit is only completed when a particular compound sound, produced, e.g., by the voice, is emitted. The device may be applied to opening doors of garages by a hooter or to the opening of a safe by a key-phrase.
Patent GB-453162-A (GB)
Title: Improvements in and relating to electric lamp holders
IPC: H01R33/46
Filed: 1935-03-09
Abstract: 453,162. Anti-vibration devices for supporting electric lamps. DENNES, N., Whitecroft, Solihull, near Birmingham, and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd., 1, Kingsway, London. March 9, 1935, No. 7408. [Class 75 (iii)] A fitting adapted to be connected to a bayonet - socket type lamp - holder for the purpose of retaining a tubular lamp in an upright position and preventing vibration, comprises a tube 5 containing a spring-pressed annu lar plunger 6 through which a lamp cap 2 can be passed with substantial clearance, the upper rim of the plunger being shaped to correspond with the expanded or flared part 9 of the lamp bulb adjacent to the top of the cap, so that when the lamp is engaged in the holder 3 the plunger is pressed upon the bulb. As shown, the lamp holder is screwed into a member 4 which closes the lower end of the tubular casing 5, and a helical spring 7 is located between the member 4 and an annular channel formed by the cylindrical part 6 and conical part 8 of the plunger. Alternatively the lower end of the spring may seat upon a part of the lamp holder, for example the fixing ring 10.
Patent GB-110121-A (GB)
Title: Fixing of Slates or Tiles to Reinforced Concrete Roofs.
Inventor: FLOREANI ALBERTO
IPC: E04D1/34
Filed: 1917-05-24
Abstract: 110,121. Floreani, A. May 24, 1917. Roofs and roofing.-In fixing slates or tiles to reinforced concrete roofs, cavities or grooves are made in the concrete and in these are secured nails, staples, flaps, hooks, &c. by means of binding material such as putty, cement, asphalt, &c. A clip 4, Fig. 9, is embedded in a groove 1, Fig 2, and holds two abutting tiles 2, 2<1>, the abutting edges d being covered by a tile b, or, a flexible metal strip 18, Fig. 6, may be embedded at one end in the groove 1<1> and passed over the abutting edges 2, through slots h in the edges, then under the edges, being finally bent over the end of the covering tile b at 17. The tiles may be secured by nails 12, Fig. 11, driven into the binding-material f<11>, the ends being turned up by contact with the concrete at the bottom of the groove.
Patent GB-297365-A (GB)
Title: Improvements in or relating to explosive compositions for blasting fuses and other purposes
IPC: C06B31/04
Filed: 1927-03-17
Abstract: 297,365. Nienhuis, J. P. March 17, 1927. Explosives.-Oil-pitch or asphalt-pitch, or the like. with or without charcoal or the like, is used in conjunction with potassium nitrate and sulphur for the manufacture of powder suitable for fuzes and for blasting or military operations where slow action is required. The proportions are potassium nitrate 73 per cent, sulphur 15 per cent, and the pitch compound 12 per cent. The pitch is melted and strained, and after cooling is crushed before incorporation with the potassium nitrate and sulphur which are also powdered beforehand. The mixture is heated to a temperature between 150‹ C. and 250‹ C., and after this may be subjected to pressure while still hot before being finally grained and sifted into various sizes. The higher the temperature used, the quicker the rate of burning of the fuze finally prepared from the powder ; and the greater the pressure used, the slower the fuze. The ingredients may alternatively be mixed by the ordinary wet process.
Patent GB-455212-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M69/00
Filed: 1935-03-11
Abstract: 455,212. Spray carburetters. SCHIMANEK, E., Muegyetem, Budapest. March 11, 1935, No. 7523. [Class 7 (iii)] In a floatless carburetter, a regulating member depending on the differential action of two pressure surfaces such as differential diaphragms is actuated by a constant partial vacuum prevailing in the carburetter and keeps the fuel pressure in front of the nozzle constant. The value of the partial vacuum is determined by the weight of a piston controlling the passage between the air inlet and mixture discharge spaces and the tension of a spring co-operating therewith. To control the fuel supply, two membranes 16, 161 are employed, the undersurface of the larger one, 16<1> being exposed to the pressure in the air inlet 2 and the space between them being in communication through a passage 31a with a chamber 39 above a suction actuated piston valve 7 in the main air passage : the space above the smaller membrane holds fuel supplied through an inlet 13 when a tubular slide valve 14 connected to the membranes has been raised by the suction operating between them to put passages 22 into communication with the inlet 13. Part of the air entering a main inlet 41 is diverted past a calibrated orifice 48 into a chamber 47 to form, with the fuel issuing from an outlet 12, above the chamber 15 in which the slide valve 14 operates, a rich mixture which is drawn along a passage 421 to mix with the air in a chamber 37 adjacent the throttle valve 4. A passage 38 in the piston 7 connects the chambers 37, 39. A tapering valve 5 on the piston 7 controls the fuel outlet 12 and carries a dash-pct piston 26 movable in a cylinder 25 formed on the end of the valve 14. Opening of the throttle causes the piston 7 to rise and the piston 26 lifts the cylinder 25 bodily providing the required additional fuel. The valve 14 as it rises, cuts off an overflow passage 19<1> but in a modification, this is omitted and a shoulder on the valve rod 5 seats on the nozzle outlet 12.
Patent GB-674383-A (GB)
Title: Manufacture of strings
IPC: A63B51/02
Filed: 1950-03-27
Abstract: Coating solutions for use in making strings, particularly for tennis rackets and musical instruments, comprise 10 to 25 per cent by weight of flake nylon dissolved with 50 to 70 per cent by weight of isopropanol and 5 to 20 per cent by weight of tetrahydrofurfuryl alcohol in a water base, the proportions being chosen to provide a coating solution of the desired consistancy.
Patent GB-872087-A (GB)
Title: Improvements in or relating to holders for electronic valves
Inventor: HOLDEN PHILIP JOHN
IPC: H01R33/76
Filed: 1958-03-10
Abstract: 872,087. Holders for thermionic valves. BRAYHEAD (ASCOT) Ltd. March 10, 1959 [March 10, 1958], No. 7593/58. Class 38 (1). A valve holder includes a central earthing spigot electrically connected to a conducting contact extending outwardly from the insulating base of the holder. As shown, a valve holder comprises a cylindrical base 1 having a plurality of pin-receiving sockets 2 and a central metal spigot 3 electrically connected to a radiallyprojecting springy metal contact 4 extending outwardly beyond the peripheral edges of the holder and spaced from the surface of a board or panel on which the holder is mounted so that it can be pressed downwards by the bottom edge of a screening can positioned over the holder. The valve holder may have diametrically spaced ears to hold the can in position (Fig. 2, not shown), and one of the ears may constitute the contact 4. The contact may be mounted on the side of the base 1 and be connected to the spigot 3 by a separate conductor. Specifications 838,655 and 864,950 are referred to.
Patent GB-609358-A (GB)
Title: Improvements in agricultural machinery
IPC: A01B51/00
Filed: 1946-03-12
Abstract: 609,358. Agricultural implements. PIMBLEY, J. H. March 12, 1946, No. 7671. [Class 6(i)] A means for attaching soil-working tools to a frame comprises a pair of parallel transverse bars 5 and 6 mounted on the frame and one or more tool-carriers provided with means for engaging the bars in order to restrain the tool from vertical displacement while permitting lateral adjusting movement. The bars 5, 6 are of angle formation with forwardly-projecting horizontal webs. The carrier comprises a tool stem 8 to which are secured flanged strips 7 carrying plates 9, 10 suitably spaced apart from the strips to form channels in which the horizontal webs of the bars 5, 6 engage. The tool may then be slid laterally and locked in position by pins 13 passing through aligned holes in the bars and plates. The tools 14 (see Fig. 4) may be mounted in sets on the carriers which may also include depth-adjusting wheels 20. The bars 5, 6 may be mounted on a sub-frame raisable on the main frame by a lever and linkwork.