baber/WOPTO huggingface dataset:
Patent GB-114067-A (GB)
Title: Improvements in Arrangements by which the Resilience in Coiled Springs is used to Effect the Moving of a Gate in any Desired Direction.
Inventor: MACKAY ROBERT
IPC: E05F1/10
Filed: 1917-05-10
Abstract: 114,067. Mackay, R. May 10, 1917. Operating g a t e s by springs. - Relates to spring means for operating gates in any desired direction. According to the invention, a helical spring encircling a prolongation of the axle of the gate is employed; or in a modification, where a prolongation of the axle is not available, a volute spring encircling the axle between the bearings is used. The free ends 1, 2, Fig. 2, of the helical spring are in line (as shown dotted) when the spring is unstrained, but are bent to engage the gate post B and an upright D on the gate when in the working pcsition. The spring is further strained by opening the gate. In a modification, shown in Fig. 3, a tension regulator at the gate post end of the spring is used consisting of a screwed link N connected with a clamp J on the gate post. The link N hooks into an eye 5 in a sleeve 4 screwing along the spring for adjustment of position. The spring in its unstrained condition is shown in full lines. In modifications, the spring is formed with one square turn to engage the square of the axle; or the end of the spring is secured to a collar pinched or clamped on the axle. In other arrangements, a hooked link 5, Fig. 8, is pivoted to the clamp on the gate post and engages one or other of a series of holes in a collar Q carried by the spring. Instead of a hooked link, a double link U, Fig. 10, and fastening pin U<2> may be employed. Fig. 13 shows an arrangement in which a collar Y squared to fit the axle is used. In the case where a volute spring is necessary, the ends are turned inwards and attached one to the tension-adjusting link N, Fig. 16, and the other to a member Z clamped directly on the axle, or loose on the axle and pinned to a collar which is clamped to the axle.
Patent GB-375838-A (GB)
Title: Improvements in coloured building cements or concretes of the portland type
IPC: C04B14/04
Filed: 1931-03-04
Abstract: A coloured concrete mix is obtained by incorporating coloured cement of the Portland type with an aggregate consisting of calcined flint in an amount at least sufficient to combine with the lime set free during the setting.  The products do not effloresce and are resistant to sea water.  In an example 1 part of coloured cement is incorporated with 2 1/2 parts of graded calcined flint.  The Provisional Specification describes also the use of activated silica.
Patent GB-405817-A (GB)
Title: Gauging apparatus for grinding or abrading machines or like machine tools
IPC: B24B49/04
Filed: 1933-03-07
Abstract: 405,817. Liquid-level pressure gauges. LANDIS TOOL CO., Waynesboro, Pennsylvania, U.S.A. March 7, 1933, No. 6882. Convention date, March 12, 1932. [Class 106 (ii).] A gauging device for a grinding-machine or like machine tool comprises the use of a jet of fluid, the outlet of which becomes restricted as the work is reduced in size and so causes pressure to rise in the fluid supply line, thereby operating mechanism to control or stop the operation of the machine, and if desired to indicate the size of the work. The pressure fluid, which may be air or water, is supplied from a high pressure pipe 48 through reducing valves 49, 50, or from any source of constant pressure, to a restricted passage 56 in a plug 57, the passage 56 opening into a passage 54 formed in a block 52 and communicating with the hose 35 leading to the fluid jet. The passage 54 also communicates through a passage 53 with the bent down end 60 of a manometer tube 58 in which is mercury or other liquid 59, the movement of the liquid being damped by a restriction 61. In the open end of the tube 58 are three contacts 62, 63, 69 carried by members 64, 70 adjustable by screws 68, 72 and connected with an electric supply, so that as the liquid closes the circuit across the contacts 62, 69, a relay is operated to close the circuit of a solenoid, which actuates mechanism, for example, to slow down the speed of rotation of the work or stop wheel feed when the work has attained approximately finished size ; when the contacts 69, 63 are closed, a second relay functions to stop the machine. The gradual reduction of size of the fluid outlet, as the work is reduced in size, causes the fluid to issue from the jet more slowly, and eventually causes a sudden rise of pressure in the passage 53, so that the liquid 59 is moved quickly to close the contacts. Graduations may be made on the manometer tube to indicate the size of the work.
Patent GB-1406581-A (GB)
Title: Polymer smoke suppression additives
IPC: C08K5/56
Filed: 1973-02-13
Abstract: 1406581 Smoke suppressing additive SYNTEX CORP 13 Feb 1973 [17 Feb 1972] 6995/73 Headings C3P and C3R A bis-cyclopentadienyl iron compound is added to PVC or polyurethane in amounts of 0À1-1% as a smoke suppression additive. In examples ferrocene, ethyldicyclopentadienyl iron, n-butyldicyclopentadienyl iron, 2,2-di- (ethyldicyclopentadienyl iron) propane and the polymeric reaction product of ferrocene and methylol are added to rigid or plasticized PVC or to a polyurethane foam formed from diphenylmethane diisocyanate and α-methylglucoside propylene oxide polyether polyol.
Patent GB-1394944-A (GB)
Title: Directional control valves
IPC: F16K11/07
Filed: 1973-02-13
Abstract: 1394944 Valves PARKER-HANNIFIN CORP 13 Feb 1973 7035/73 Heading F2V A directional control valve having a spool 3 manually movable between "raise", "neutral", "lower" and "float" positions is characterized by electromagnetic latch means which holds the spool in its end positions. The means comprise a pair of coils 27 28 and a magnetizable plate 25. Springs 42, 43 bias the spool to the neutral position. When the spool is shifted to the "raise" position both springs 42, 43 oppose movement of the spool. When the spool is shifted to the "lower" position only spring 42 opposes the movement and when the spool is further moved to the float position the washer 20 abuts the coil 27 so that once again both springs oppose the movement.
Patent GB-389149-A (GB)
Title: Improvements relating to floors, ceilings, roofs and the like, and in blocks for same
IPC: E04B5/08
Filed: 1931-09-11
Abstract: 389,149. Reinforced-concrete floors and blocks therefor. SMITH, W. H., The Cottage, Imber Court, East Molesey, Surrey. Sept. 11, 1931, No. 7071/32. Divided on 374,476. [Classes 20 (iv) and 87 (i).] Relates to floor, ceiling, or roof construction involving the use of hollow preformed tiles or blocks spaced apart in rows with supportng beams in the spaces between, and comprises a constructon in which the blocks have rebated portions M formed in the top of the faces A which abut. The rebates increase in depth at the ends m. The supporting beams Q are usually of concrete, cast in situ, with reinforcement H therein. The rebated portions M of the blocks are filled with fine concrete, thereby establishing continuity in the concrete to transmit the compression stresses. Each block may be provided with two substantially triangular recesses C near the top at the sides, and inclined ribs F passing from the centre top to the sides at the bottom. Two larger recesses B of the form shown are separated by a vertical rib V. The sides of the blocks are provided with projecting lips D leaving a space between adjacent blocks which from the top downwards first decreases and then increases.
Patent GB-1419561-A (GB)
Title: Vehicle headlights
IPC: B60Q1/064
Filed: 1973-02-13
Abstract: 1419561 Controlling vehicle headlamps CIBIE PROJECTEURS 13 Feb 1973 [18 Feb 1972] 7076/73 Heading F4R A manually-operated fluid control system for vehicle headlamps comprises a manuallyoperable control element 100 having a variable volume fluid chamber 106, a double transducer 200 having a fluid input chamber 205 connected to the chamber 106, a mechanical outlet 207 connected to one headlamp Pd, and a fluid outlet chamber 206, and a transducer 300 having a fluid input chamber 305 connected to the chamber 206 and a mechanical outlet 307 connected to a second headlamp Pg. The control element 100 has a captive screw 103 for operation by the driver of the vehicle, rotation of this screw causing a piston 102 to move axially within the bore of the element to vary the volume of the chamber 106. The control element 100 and the transducers 200, 300, together with their associated conduits, are manufactured as sealed units closed by diaphragms such as 218, 228, the units being joined when they are installed in the vehicle by connectors R incorporating means for piercing the diaphragms. Alternatively, the diaphragms may be ruptured by the application of fluid pressure caused by tightening the screw 103.
Patent GB-1515484-A (GB)
Title: Disc brake and heat shield therefor
IPC: F16D65/18
Filed: 1977-02-21
Abstract: 1515484 Spot-type disc brakes SOC ANON DBA 21 Feb 1977 [16 March 1976] 07138/77 Heading F2E The brake, which is of the sliding-caliper reaction type, has a detachable heat shield 38 provided between the piston 32, Fig. 2, and one of the friction pads 26 to prevent heating of the hydraulic brake fluid between the cylinder and the piston, the shield comprising at least one layer 42 of thermal insulation, e.g. organic insulator or asbestos mixed with a binder. The upper edge, free of insulation, is bent to form a mounting flap 46, and symmetrical fixing holes 48, Fig. 3, through one of which a spring clip (not shown) passes, are provided.
Patent GB-497412-A (GB)
Title: Improvements in and relating to apparatus for polishing glass
IPC: B24B41/053
Filed: 1937-03-11
Abstract: 497,412. Polishing &c. glass. SOC. ANON. DES ATELIERS HEUZE, MALEVEZ, & SIMON REUNIS. March 11, 1937, Nos. 7170 and 7171. Void. Convention dates, March 11, 1936. [Class 60] In a machine for grinding or polishing travelling flat glass strips 4, a runner is employed comprising a number of tools 17 in the form of portions of cones connected by flexible discs 18 to shafts 20 rotatably mounted in a frame 23 carried by a vertical shaft 21, which is rotated in a vertically slidable casing 10 by gearing 31, 32 from a motor 16. The casing 10 carries a toothed wheel 26 with which engage bevel pinions 25 on the shafts 20 so that as the tools are moved round the axis of the shaft 21, they also rotate on their axis ; the axes of the shafts 20 may be tangential to a circle Z having the axis of the shaft 21 as its centre, and the tools 17, which are covered with felt, &c. 37 may be cylindrical instead of conical. In a modification, Figs. 5 and 6, the central rotating shaft 41 carries a frame 42 in which are mounted two or more shafts 46 rotated by pinions 45 thereon which engage a spur-wheel 43 secured to the casing 44, the shafts 46 also carrying bevel pinions 48 engaging bevel pinions 49 on shafts 51 rotatable in the frame 42. The shafts 51 drive, through chain gearing 53, 60, cylindrical tools 56 carried by shafts 57 mounted in arms 54 pivoted to the frame 42 ; four or six tools 56 may be employed.
Patent GB-254646-A (GB)
Title: Improvements in and relating to nut locks
IPC: F16B39/32
Filed: 1926-03-15
Abstract: 254,646. Dunham, C. T., and Barnswell, R. P. March 15, 1926. Locking nuts.-A nut is locked against backward rotation on a bolt, which is longitudinally grooved to form ratchet teeth, by dogs 7 which slide in slots in the nut, being guided by pins 8, and are held in engagement with the ratchet by leaf springs 10. The dogs may be disengaged by lifting the springs by rotating pivoted levers 11 which are then retained by pins 13. The parts may be enclosed by a cap 14.
Patent GB-549294-A (GB)
Title: A surgical support
IPC: A61F5/058
Filed: 1942-05-28
Abstract: 549,294. Surgical limb supports. McDONOGH, F. May 28, 1942. No. 7261. Convention date, July30,1941. [Class 81 (ii)] A surgical support comprises an outer cover 11 of soft leather, strong linen, &c. the sides of of which can be detachably connected together by a zipp fastener 14 or by lacing &c. an internal rubber air cushion shaped to the portion of the body to which it is to be applied and means for inflating and deflating the cushion. Attached to the cushion is a tube 3 the end of which is attached to a cock 4 provided with a plug 5 formed with a passage-way, which by being brought into register with the passage in the tube 3 allows the cushion to be inflated or deflated as desired. Detachably connected to the cock 4 is a flexible tube 6 to which is connected an air gauge 7 and a ball valve 8. By opening the plug 5 the pressure in the air cushion will be indicated on the gauge 7, the ball valve 8 preventing escape of air. To let down the air the tube 6 is detached and the plug 5 opened.
Patent GB-398804-A (GB)
Title: Television reception arrangement with braun tube
IPC: H01J29/52
Filed: 1932-03-11
Abstract: 398,804. Television. ARDENNE, M. VION, 19, Jungfernstieg, Lichterfelde, Berlin. March 11, 1932, No. 7262. Convention date, March 31, 1931. Addition to 396,051. Drawings to Specification. [Classes 39 (i) and 40 (iii).] In the Braun tube described in the parent Specification the cathode ray beam is concentrated, controlled in its intensity and concentrated again. According to the present invention, the disturbing influences of the deflecting electrodes on each other or on other electrodes are eliminated by spacing them apart or by screening. For normal tubes a spacing of 9-15 millimetres is sufficient. Specification 399,192 is referred to.
Patent GB-574665-A (GB)
Title: Electronic voltmeters and ohmmeters
IPC: G01R17/16
Filed: 1944-04-21
Abstract: 574,665. Thermionic valve voltmeters ; resistance measurements. STANDARD TELEPHONES & CABLES, Ltd. April 21, 1944, No. 7409. Convention date, April 24, 1943. [Class 37] A voltmeter circuit comprises two thermionic valves, a resistance connected between the cathode of the first valve and the plate of the second valve, a resistance in the cathode circuit of the second valve, and a current measuring instrument connected from a point between the two valves to earth. Fig. 1 shows a circuit for measuring direct voltages and Fig. 2 shows a modification for measuring alternating voltages. In both arrangements the cathode 7 of a valve 6 is connected to the plate 24 of a second valve 10 through a resistance 9. The cathode 25 of the valve 10 is connected through a bias resistance 11 to the negative terminal of a D.C. source 21, to which terminal the grid 12 of the valve 10 is also connected. The positive terminal of the source 21 is connected to the plate 14 of the valve 6. Cras-filled tubes 15, 16 are connected in series across the source 21 to maintain a constant voltage between the points 17, 18. Two resistances, 19, 10, which may be equal, are also connected between the points 17, 18, the common point 34 being earthed. The voltage to be measured is applied between earth and an input terminal 1 over a potential divider 2, an adjustable contact 4 on which is connected to the grid 5 of the valve 6. For measuring direct voltages a D.C. measuring instrument M is connected in series with a resistance 23, Fig. 1, between a movable contact 22 on the resistance 9 and the point 34. The resistances 19, 20 form the ratio arms of a Wheatstone bridge of which the valve 10, resistance 11, and the lower part of the resistance 9 form the standard arm, and the valve 6 and upper part of the resistance 9 form the unknown arm. The bridge is balanced by adjusting the contact 22 to obtain balance when no voltage is applied to the terminal 1. If a direct voltage is applied to the terminal 1 the meter M then gives a corresponding reading. For measuring alternating voltages the cathode 7 of the valve 6 is connected through a blocking condenser 26, Fig. 2, and a resistance 30 to one terminal of the meter M, the other terminal of which is earthed. A rectifying diode 27 has its plate 31 connected to the junction of the resistance 30 and the condenser 26, the cathode being earthed. A compensating diode 29 is connected so as to send its emission current reversely through the meter M to compensate for the emission current of the diode 27 when no alternating voltage is applied to the terminal 1. The meter M may be calibrated to read direct or alternating potentials. The arrangement may also be used as an ohmmeter for D.C. or A.C., in which case the meter may be calibrated in ohms.
Patent GB-940288-A (GB)
Title: Tracing apparatus
IPC: B23Q35/128
Filed: 1962-02-26
Abstract: 940,288. Photo-electric path followers. STEWART-WARNER CORPORATION. Feb. 26, 1962 [Feb. 27,1961; Oct. 9,1961], No. 7422/62. Heading G1A. A device for following an edge comprises a sensing head deriving a signal indicative of the areas, within its field of sensitivity on either side of the edge, a modulator modulating the signal at a predetermined frequency and means for adding a bias at the same frequency and in phase opposition to the modulated detection signal to produce an alternating signal whose phase shows the sense of displacement of a reference line in the head from the edge and whose amplitude shows the amount of such displacement. The sensing head comprises a photo-resistance 10, Fig. 1, having a sensitive area 12 for detecting a line 14, and the modulator may be an opaque shutter 16 which is oscillated between extreme positions 16a and 16b. The photo-cell output is shown as 22a to 22d in Figs. 2a to 2d for the positions of the edge shown in Figs. 1a to d respectively. The photo-cell output is mixed at 41, Fig. 3, with a reference signal 26a to 26d, Fig.2, derived from the modulator supply. The resultant signal is zero in the Fig. 1d condition and of opposite phase on either side of this position, and is employed to drive a steering motor 50 to maintain the Fig. 1d condition. A tacho generator 56 connected to motor 50 reduces the loop gain at high deviations to reduce overshoot. If the photo-cell loses the edge completely, its output has no alternating component and a relay 76 drops out to light a warning lamp 84 and stop the head movement. The natural offset between the axis 18 and the edge 14 in the equilibrium position may be allowed for by a steady magnetic bias on shutter 16 by a solenoid 64 or by mechanical or optical means. If the light and dark areas forming the edge are reversed, switches 44 and 62 are put in their other extreme positions to change the phase of the reference signal and the sense of the magnetic bias respectively. With switches 44, 62 in their middle position, the device operates as a line follower. In a modification, Fig. 6, not shown, which is free from instability and the natural offset effect, the shutter 16 is replaced by a flashing lamp when edge tracing, but is retained for line tracing. Specifications 670,143 and 885, 026 are referred to.
Patent GB-1134786-A (GB)
Title: Loom
IPC: D03D49/60
Filed: 1966-02-21
Abstract: 1,134,786. Beat-up mechanisms. MACHINEFABRIEK L. TE STRAKE N.V. 21 Feb., 1966 [19 Feb., 1965], No. 7550/66. Heading D1E. A reed is driven from a crank 2 or eccentric through a slide block 9 the slot 15b in which engages a crank pin 11 on a bell crank lever 12, 18 causing it to oscillate and the reed also to oscillate. The arm 18 of the bell crank lever is conected to an arm 22 on the reed swords 24 by a rod 20.
Patent GB-1057322-A (GB)
Title: Improvements in or relating to electrophotography
IPC: G03G8/00
Filed: 1964-02-24
Abstract: 1,057,322. Electrophotographic plates. FUJI SHASHIN FILM KABUSHIKI KAISHA, and SHIN-MITSUBISHI JUKOGYO KABUSHIKI KAISHA. Feb. 24, 1964 [Feb. 25, 1963], No. 7639/64. Heading H1K. [Also in Division G2] An electrophotographic plate is formed by spray-coating a steel plate with a liquid to form a photo-conductive layer. The liquid is formed in one example by mixing photoconductive zinc oxide 100 parts, polyvinyl butyral resin 25 parts, cosoluble silicon resin varnish (60% solid) 25 parts, isopropyl alcohol 40 parts, and toluene 20 parts. In another example, the coating is formed from photoconductive zinc oxide 100 parts, alkyd resin varnish 50 parts, xylene 20 parts, toluene 20 parts.
Patent GB-394768-A (GB)
Title: Improvements relating to indicators for use in mimic circuits or like diagrams
IPC: H02B15/00
Filed: 1932-03-15
Abstract: 394,768. Electric signalling systems ; indicators. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. - (Assignees of Allgemeine Electricitõts- Ges.; 2, Friedrich Karl-Ufer, Berlin.) March 15, 1932, No. 7698. Convention date, March 16, 1931. [Class 40 (i).] An indicator for use in mimic circuit diagrams comprises a parabolic reflecting surface 6 adapted to reflect external light through a prismatic refractor 5 under the control of an electromagneticallyoperated shutter 7. The refractor is arranged behind a transparent cover-plate 4 and is adapted to throw the rays of light, irrespective of their angles of incidence on to the reflector 6 in such a manner that they emerge in a parallel beam. By the use of this arrangement the ordinary illumination provided in front of the mimic diagram is sufficient to provide clear indications. The shutter 7 is operated by an electromagnet 9 which is controlled in accordance with the condition of the associated apparatus unit. To avoid the necessity of maintaining the coil 9 energized, an electromagnetically-operated pawl may be provided to retain the shutter in its raised position. The shutter and refractor preferably are of complementary colours so that according to the position of the shutter the conditions of the apparatus unit may be distinguishable by the different colours as well as the different conditions of illumination. The indicator is located in a line circuit diagram represented at 3.
Patent GB-609533-A (GB)
Title: Process for making maleic anhydride from maleic acid
IPC: C07C51/56
Filed: 1946-03-12
Abstract: Maleic anhydride is made by continuously circulating a solution of maleic anhydride through a heating device and then through a vapour release chamber, the solvent (which may be xylene) being one which is substantially <PICT:0609533/IV(b)/1> inert to maleic anhydride, or maleic acid at working temperatures, is immiscible with water, and has a boiling point, at atmospheric pressure within the range 130-160 DEG  C., feeding maleic acid into the circulating solution prior to its entry into said heating device, maintaining said heating device at a temperature such that substantially all of the added maleic acid is converted to maleic anhydride with elimination of water, removing solvent and water vapours from said circulating solution in said vapour release chamber, condensing the removed vapours, removing the water from the condensate, and returning the remaining condensed solvent to the system, withdrawing a portion of the circulating solution subsequent to said vapour release chamber, but prior to the point at which maleic acid is fed to the circulating solution, removing solvent from the withdrawn portion by distillation, condensing and returning the removed solvent to the solution whilst withdrawing the maleic anhydride from which the solvent has been removed.  The time in the heating device is preferably less than 15 minutes. Referring to the Figure, a solution of maleic anhydride in xylene is drawn from tank 1 by pump 4 and passed through heater 8 and vapour release chamber 10, which may be held at atmospheric or raised or reduced pressure.  Vapours of water and xylene pass by pipe 11 to condenser 12 and separator 13, the residual solution of maleic anhydride in xylene returning by pipe 16 to tank 1.  Xylene separated from the water in separator 13 returns to tank 1 by pipe 15.  Maleic acid is fed to the circulating solution by inlet 23 to pipe 5, and solution is withdrawn by pipe 17 to still 18, where xylene is distilled from the maleic anhydride and returns by pipe 19 and condenser 20 to tank 1.  U.S.A. Specification 2,222,283 is referred to.