baber/WOPTO huggingface dataset:
Patent GB-1007808-A (GB)
Title: Electrical switch
IPC: H01H50/20
Filed: 1964-04-02
Abstract: 1,007,808. Electrically tripped switches. HI-G. Inc. April 2, 1964 [April 3, 1963], No. 13629/64. Heading H2B. A switch actuating plunger 64 is held locked against the action of a spring 130 by balls 74 cammed against a shaft 76 of the plunger by a tapered camming surface 86 against which the balls 74 are pressed by an apertured sleeve 78 carrying the balls. Attraction of an armature plate 124 secured to the carrier sleeve 78, upon energization of a solenoid 104, releases the balls from the plunger 64 which then moves a movable contact-carrying spool 40 until its end surface 46 engages the casing shoulder 48, and the four resilient movable contacts 50 (one shown) engage their respective partially cylindrical stationary contact pairs 22. Alternatively one or more contacts 50 may disengage stationary contacts when the latch is released. The switch is re-set by the insertion of a tool in the bore 16.
Patent GB-706292-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/44
Filed: 1952-05-29
Abstract: 706,292. Rotary pumps. BOLLIGER, H. May 29, 1952 [May 31, 1951], No. 13648/52. Class 110 (2) The vanes 10 are pivoted at 15 to the periphery of an eccentric rotor 8, pairs of vanes being kept spaced by rods 21. A long groove 24 is provided in the casing wall on the inlet side 4. End cheeks 9, Fig. 2 (not shown), on the rotor act as sealing plates.
Patent GB-734890-A (GB)
Title: Improvements in or relating to inductance coil adjusting arrangements
IPC: H01F21/06
Filed: 1953-05-15
Abstract: 734,890. Inductors. STANDARD TELE.- PHONES & CABLES, Ltd. May 16, 1953 [July 18, 1952], No. 13664/53. Class 38 (2). [Also in Group XL (c)] The inductance of a permeability - tuned inductance coil 1, for example in a local oscillator in a radio receiver, is varied by means of a cord attached at one end to the coil core 2 and at the other end to a rotatable drum 6, the cord being also attached at an intermediate point to a member 4 which by means of a suitably shaped member 5 is constrained to move along an arcuate path when the drum 6 is rotated. The core 2 moves under the tension of a spring 9 carrying the pulley 7 over which a cord from the other end of the core 2 passes. The movement of the core 2 is consequently not linearly related to that of the drum 6, the relationship between the two movements depending upon the shape of the member -5. In the arrangement illustrated, the member 5 comprises a single plate and the member 4 is in the form of a U-shaped rider. In alternative arrangements the member 4 is in the form of a pin and moves within a groove or slot in the plate 5, or is supported between slots or grooves in two such closely spaced parallel plates. In a further modification the member attached to the cord is in the form of a sleeve and slides over a wire shaped to produce the desired relation between the rotation of the drum and movement of the core.
Patent GB-541284-A (GB)
Title: Improvements in or relating to a reel or spool and carrier therefor for winding and aftertreating freshly spun artificial silk
IPC: B65H54/54
Filed: 1940-08-30
Abstract: 541,284. Winding artificial silk. FELDMUEHLE AKT.-GES. VORM. LOEB, SCHOENFELD, & CO. RORSCHACH. Aug. 30, 1940, No. 13669. Convention date,. July 29, 1939. [Classes 120 (ii) and 120 (iii)] In a spool or reel upon which artificial silk is wound and a carrier therefor in which the circumference of the carrier can be contracted so that the silk is permitted to shrink on the spool or reel while drying the spool has flanges with outwardly-diverging inner faces and longitudinal slots so that it can be mounted on longitudinal thread supporting members of the carrier, the rear flange, at least, of the spool having apertures in continuation of the slots so that the spool can be slid upon the thread supporting members which have circumferentially broadened heads adapted to pass through the apertures of the spool when they are retracted, the members being expanded radially by an axially shiftable core member and being clamped in their outermost positions by becoming wedged between the inwardly-facing terminal walls of the apertures and the core member. As shown the spool S has flanges 1, 1a and longitudinal slots 2 which are prolonged at one end and enlarged to form openings 2a which are larger than the heads 3a of the longitudinal thread-supporting members 3 of the carrier, the ribs between the slots 2 are shaped to accommodate the heads 3a when the members 3 are in the contracted position. The members 3 are disposed in slots 8b in the drum 8a of the carrier 8 which is fixed to the winding spindle 7 and have tongues 12 engaging conical faces on the core member 5 slidable on a shaft 7a of the carrier. The spool S is slid on to the members 3 when these are in the contracted position and a knob 10, engaging the core 5 and a screwed part 6 of the shaft 7a, is pushed inwardly to force the members 3 outwards and is then locked on the part 6 to clamp the members in their outermost positions. The silk is now wound on'the members 3 and when the winding W is completed they are contracted so that the silk is received on the spool which may now be removed from the carrier with the silk for treatment. In a modification the knob is locked on the shaft 7a of the spool carrier by balls pressed by a spring into contact with a recess in the core member. Specification 428,320 is referred to.
Patent GB-1118278-A (GB)
Title: High permeability ferrous alloys
IPC: C22C37/10
Filed: 1967-03-23
Abstract: A ferrous alloy of high magnetic permeability comprises:- <TABS:1118278/C6-C7/1> the balance, apart from impurities and incidental elements (e.g. Mg, Ce, Nb, Li, Na or Ba) being iron.  The following heat-treatment may be used:- heat to 1550 DEG F. over three hours, increasing the temperature to 1725 DEG F. of 3 3/4 hours and keeping it there for 8 1/2 hours, cooling to 1375 DEG F. over 1 1/2 hours, isothermal treatment at 1325 DEG -1375 DEG F. for 8 hours and then air cooling.
Patent GB-947920-A (GB)
Title: Improvements in or relating to devices for measuring displacements
IPC: G01D5/38
Filed: 1960-04-20
Abstract: 947,920. Electric selective signalling systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 20, 1960 [April 23, 1959], No.13836/60. Heading G4H. Relates to an arrangement for measuring the magnitude and direction of rectilinear or rotary displacement of a member, e.g. a machine tool member, in which a raster, e.g. a diffraction grating or absorption raster, is attached to the member, said raster having lines substantially at right angles to the direction of displacement, a beam of light is directed onto the raster to form a luminous image consisting of bright and dark moirÚ bands which move substantially at right angles to themselves on displacement of the raster and the luminous image is projected on to a plurality of, e.g. four, photo-electric cells whose output pulses are counted in an electronic counter to give the displacement magnitude, the direction of displacement being indicated by the relative phase relationship of the pulse outputs. According to the present invention the effects of any irregularities in the raster are reduced by arranging that the area of the luminous image covered by the photo-electric cells comprises at least two moirÚ periods, a moirÚ period being the distance between two successive bright moirÚ bands and each period being regarded as divided into a number of zones I, II, III, IV equal to the number of photo-electric cells, the light from each of the first zones I being directed on to a first photo-electric cell, the light from each of the second zones II being directed on to a second photo-electric cell and so on. The arrangement described comprises a fixed raster 1 and a raster 2 movable in the direction of its length and having opaque lines inclined relative to those of the fixed raster 1 to produce moirÚ bands extending parallel to the direction of movement but alternatively the two rasters may have different raster periods or constants in which case the moirÚ bands extend parallel to the raster lines. The invention is also applicable to an arrangement comprising a single raster as described in Specification 906,101. As shown in Fig. 3, light from a source 3 focused by lens 4 on the movable raster 2 and fixed raster 1 is projected by lenses 5, 6 on to a double prism 7 having its axes at right angles to the plane of the paper. In conjunction with a lens 8, light from the zones I, I is simultaneously projected on to the photo-cell 9, and that from zones IV, IV is incident on the cell 12. The outputs from the cells 9. . .12 are fed to an electric counter T which provides an indication of the movement in extent and direction of the raster 2 relative to the fixed raster 1. Specification 760,321 also is referred to.
Patent GB-252891-A (GB)
Title: Improvements in lubrication appliances for use on internal combustion engines
IPC: F01M1/02
Filed: 1925-05-27
Abstract: 252,891. Douglas Motors, Ltd., and Pullin, C. G. May 27, 1925. Force-feed lubricating.-A lubricating system for an internal-combustion engine comprises an oil tank 2 carrying circulating and scavenging gear pumps 8, 10 and forming a complete unit isolated from the crank case 3 by a space 4 but removably bolted to the bottom thereof, the drive mechanism of the pumps and the lubricant conduit having joints which are disconnected by a downward movement. The tank 2 is divided at 5, a filter 6 being arranged between the two parts. Oil passes from the crank case through a filter 13 and a branch 15 of a detachable cover 14 into the inlet 16 of the pump 10, the connection being effected by a spigot 17 which enters an aperture in the inlet 16, packing material 18 in the aperture being compressed by a shoulder 19 on the spigot. The pump 10 delivers the oil into the tank 2. a cooler being interposed if desired. The pump 8 delivers oil from the tank to the interior of the crank shaft 40 through a branch 9, a pipe 35, a socket 36 on the timing gear casing 37, a branch 39, and a sleeve 43. The end 42 of the sleeve enters a bore in a plug 41 secured in the end of the crank shaft, and a spherical shoulder 44 on the sleeve is pressed against the face of the plug by a spring 48. A pressure gauge is connected to a branch 49. The lower end of the pipe 35 is slidable in a stuffing-box 34 in the branch 9, and the upper end is connected to the socket 36 by a coned union joint 38. The pump spindle 11 has an axial recess 21 receiving the spherical end 22 of a connecting shaft 23, a pin 26 extending through the end 22 engaging longitudinal slots 27 in the wall of the recess 21. The other end of the shaft 23 has a similar engagement with a shaft 24 driven from the engine by worm gear 31, 32. The shaft 23 is pressed downwards by a spring 30. A by-pass 51 connecting the outlet side of the pump 8 with that of the pump 10 is controlled by a spring-pressed release valve 50. By disconnecting the securing bolts and the screwed union 38, the tank and pump assembly can be removed by a downward movement.
Patent GB-1143511-A (GB)
Title: Advertising device
Inventor: BAILEY DESMOND
IPC: G09F11/02
Filed: 1967-03-28
Abstract: 1,143,511. Rotating display devices. STANDARD TELEPHONES & CABLES Ltd. 28 March, 1967, No. 13949/67. Heading G5C. A plurality of similar regular equilateral triangular prism shaped elements 11-15, which are each pivotally mounted for rotation about the axis passing through the circumcentres of both triangular faces, are rotated in turn through 120 degrees by an operating member 40 engaging in twin cams 21-25 rigidly connected to the elements, restraining means 64 (Fig. 2) preventing any element from rotating except under the influence of the operating member. The prisms are provided with axles 31-35 rotatably journalled in bearings 51-55 in two circular plates 45, 46, such that the elements are at equal intervals around the circumference of a pitch circle 44 of plate 45. The restraining means consists preferably of a smooth non-extensible plastics band 64 in combination with a light tension spring 68 connected to a rigid mounting 67. The operating member consists of a leaf-spring 41 carrying a finger 43 which engages the cams. In the case of the elements being additionally rotated by means of a turntable 61 about a central axis 47 (Fig. 2), the member 40 is connected to a stationary support 42. When the elements are not so additionally rotated the member 40 may be mounted on the outer end of a rotating arm pivoted about the central axis 47 to produce the necessary relative movement between the member 40 and the elements. Either advertising matter is carried on the faces of the elements, or articles are contained in hollows in the faces.
Patent GB-1147734-A (GB)
Title: Method for the preparation of urea
IPC: C07C273/04
Filed: 1967-03-28
Abstract: 1,147,734. Production of urea. SUMITOMO CHEMICAL CO. Ltd. 28 March, 1967 [29 March, 1966], No. 13994/67. Heading C2C. Urea is obtained by reacting ammonia and carbon dioxide in a first synthesis reaction zone maintained under a pressure of 140-400 kg/cm.<SP>2</SP> and at 160-230‹ C. and then in a second synthesis reaction zone maintained under the same pressure as above or under a somewhat lower pressure, thermally treating the reaction product from the second synthesis reaction zone with the reaction heat generated in the first synthesis reaction zone and simultaneously treating said reaction product with an inert gas to separate the unconverted components and to obtain an aqueous urea solution under the pressure of the second synthesis reaction zone, subjecting the gaseous component separated to absorption treatment under substantially the same pressure as in the second synthesis reaction zone by use of an aqueous absorption liquid, returning the resulting aqueous ammoniaammonium carbamate solution or slurry which may or may not contain urea to the second synthesis reaction zone or to the first and second synthesis reaction zones, and recycling the inert gas separated as an absorption treatment residue to the treatment of the reaction product. The inert gas employed is suitably air or nitrogen and the aqueous absorption liquid may be water, aqueous ammonium carbamate solution or an aqueous solution of urea. A suitable form of apparatus for carrying out the above process is described.
Patent GB-667858-A (GB)
Title: Improvements relating to liquid-cooled internal combustion engines
Inventor: THOMAS WALTER JAMES
IPC: F01P5/02
Filed: 1950-06-06
Abstract: 667,858. Centrifugal pumps. MORRIS MOTORS, Ltd. June 6, 1950. No. 14061/50. Class 110(i). [Also in Group XXII] To avoid rust formation adjacent the carbon thrust ring F of a sealing gland B, a phosphor bronze washer K is fixed coaxially on the end face of the boss H of a ferrous pump impeller D. The impeller is cast with a short cylindrical spigot over which a brazing ring and the washer K are placed. After brazing by means of highfrequency induction heating, the assembly is machined. Specification 644,185 is referred to.
Patent GB-347893-A (GB)
Title: Improvements in or relating to centrifugal fans
IPC: F04D29/46
Filed: 1930-05-08
Abstract: 347,893. Centrifugal fans. STURTEVANT CO., B. F., 6, Damon Street, Hyde Park, Boston, U.S.A.-(Assignees of Hagen, H. F. ; Whiting Avenue, Dedham, Massachusetts, U.S.A.) May 8, 1930, No. 14144. Convention date, Feb. 3. [Class 110 (i).] Regulating ; casing8.-A fan has an inlet scroll with a discharge eye leading to the rotor and provided with means for varying the spin velocity of the fluid entering the scroll. A double-entry fan is shown with inlet scrolls 6, 8 on opposite sides of the rotor 4 and the outlet 10. Each scroll has, at its lower end, an entrance chamber 14 with walls 16, 18 shaped as shown in Fig. 3, to form a constricted throat 20. A gate or deflector in the entrance chamber is formed by a curved plate 24 and side plates 28 secured to a shaft 29 which can be rocked by the link 32. A counter-weight 30 is also attached to the shaft 29. A lip 26 at the end of the curved plate 24 conforms to the wall of the throat 20 when the gate is fully open. In this position of the gate, the entering fluid distributes itself round the eye of the fan, which it enters radially. When the gate is moved, say, to the position shown in Fig. 3, the entering fluid is confined to the space adjacent to the outside wall of the scroll, and circulates round the scroll with an increased velocity. Specification 295,018, [Class 110 (i), Centrifugal and screw fans &c.], is referred to.
Patent GB-103457-A (GB)
Title: Improvements in Small-arms.
Inventor: DUFLOT EUGENE
IPC: F41A19/24
Filed: 1916-10-05
Abstract: 103,457. Duflot, E. May 23, 1916, [Convention date]. Firing-appliances - Consists of trigger mechanism having t w o sears the first of which is operated by the pull of the trigger, and the second, tc fire the gun, by the release of the trigger. In the construction shown in Fig. 1, the two sears 1, 7 are pivoted to the trigger blade 4, the first sear 1, which normally holds the firing-pin 9 at cock, being also pivoted to the breech-body. When the trigger is pulled, it first raises the sear 7 and then depresses the first sear 1, thereby allowing the firing-pin to move forwards a short distance until it is held by the second sear. When the trigger is released, its spring 3 causes it to rotate and depress the sear 7, thereby firing the gun.
Patent GB-1256436-A (GB)
Title: Vehicle seats
Inventor: LEHNER WILHELM
IPC: B60N2/50
Filed: 1969-03-18
Abstract: 1,256,436. Resiliently,mounted,tip-up seats. W. LEHNER. March 18, 1969 [March 18, 1968], No. 14209/69. Headings A4B, A4J, A4U. A sprung seat comprises a mounting frame 1 which has two lateral, U-section guideways (15, 16) which have open sides facing each other, each of which receives a rolling element comprising a ball (17) or 18 or a pin 19 by which the ball is guided in the guideways. The seat 4 which is mounted on lateral, U-shaped lugs 24 is moveable to an out of use position by means of a rocker 21 connected at one end to the mounting frame 1 and at the other end to a subsidary rocker 23 which is pivoted to the seat member 4. A cross-member 32 attached to springs 30 (31) is adjustable by screw 35 to adjust the springs to the driver's weight. The backrest 3 is vertically adjustable by means of threaded bolts (12 and 13) Fig. 2 (not shown) which slide in grooves (10 and 11) provided on either side of a carrying frame 2.
Patent GB-555198-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: B60L15/12
Filed: 1941-11-04
Abstract: 555,198. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO.. Ltd., (General Electric Co.). Nov. 4, 1941, No. 14216. [Class 38 (iii)] In a traction system a resistance 42 variable by a pilot motor, under the control of a vibrating accelerating relay, is cut out once during acceleration, but is cut out twice during braking from high speed. When a master accelerating controller is moved from " off " switches 101, 92a, 105, and 104 are closed and contact 47 is moved to its " B " position at a speed governed by the accelerating relay. A pilot controller associated with the pilot motor causes field diverters to be removed as contact 47 starts to move. Movement of the master controller towards the " run " position increases the spring bias on the accelerating relay and so causes a greater rate of acceleration. Switch 114 is closed as soon as the master controller is placed in the new position. When contact 47 reaches its B position, switch 116 closes and switch 114 also closes if it has not already closed, switch 170 opens and 171 closes. The diverters are placed across the fields 25, 26 and 27, 28. The pilot motor is reversed and moves contact 47 back to its "A" position at slow speed and during this movement each diverter is reduced in value. This gives full speed running. Coasting is obtained by returning the accelerating controller to " off." The "shut off " is given in a cushioned manner by opening in sequence switches 105, 114, 116, 101, and 104. Thereafter switch 92a opens and switches 84, 85 close, thereby forming a braking loop. The pilot motor adjusts the contact 47 so as to maintain a small constant current in this loop under the control of the accelerating relay whose coil is now shunted across part of the resistance 44. Braking is obtained by movement of a braking controller to a service position whereupon the setting of the accelerating relay is changed by inserting a resistance in series with its coil and by increasing the spring bias in accordance with the movements of the controller. The pilot motor maintains the desired braking current by moving contact to portion "M" whereupon switch 171 opens and 170 closes to substitute the resistance 42 for the resistances 43, 40, 41 and the contact 47 is moved back to its original "A" position. In the " full service " position of the controller an air brake is brought into operation. The motion of the pilot motor ensures that upon any change from accelerating to coasting or to braking, or resumption of accelerating after coasting or braking, the position of the contact 47 is approximately correct for initiation of the new condition. Specifications 513,114 and 514,263 are referred to.
Patent GB-329496-A (GB)
Title: Strengthening or reinforcing chimney shafts
IPC: E04H12/28
Filed: 1929-05-07
Abstract: 329,496. Fferdmenges, H. May 7, 1929. Chimneys.-Chimney shafts are reinforced by spiral metal bands or wires b arranged in the horizontal joints f of the masonry.
Patent GB-202419-A (GB)
Title: Improvements in indexes or means for indicating the duties and/or other data relating to persons or objects
IPC: G07C3/12
Filed: 1922-05-20
Abstract: 202,419. Glenny, A. H. T. May 20, 1922. Time-checking apparatus, check and token.- An index for indicating the trade and other data relating to persons or objects comprises a rack provided with rods, pins or pegs furnished with indicators, such as perforated discs, collars, tabs, labels &c., which are prevented from accidental displacement bv knobs &c. secured detachably to the rods. As shown in Figs. 1, 2 and 3, the rods e may be mounted in holes d in a rack a hinged to a base b, or in holes in the slide d<1> or slides d<2> retained in grooves c in the rack. The rods e carry variously coloured discs k and collars h, which may be provided with tabs h<2> and labels h<1>, and the discs, collars &c. are prevented from accidental displacement by knobs i or discs having press button fastening members adapted to engage knobs on the ends of the rods e. The discs, labels and knobs may bear information. The rods e may be split at the ends so as to fit elastically in the holes d, or they may be provided with heads which rest against the bottom surface of the grooves c when the slides d<1> are in place. In the modification shown in Fig. 11, the rod e<3> is screwed into the slide d<4> which is locked in the slot c<1> by a nut d<6>. A long sleeve e<4> is mounted on the rod e<3> and the collars h<4> and discs k, k<1> are threaded on the sleeve and held in place by nuts e<5>. A disc i<2> is clipped on the end of the rod e<3>. Instead of the collars h and tabs h<2>, an elastic celluloid tab, Fig. 13, may be provided. The legs h<6> may be furnished with holes h<7> for labels. In a further modification, numbered tabs, Fig. 15, are employed. Instead of perforating the discs k, k<1>, they may be slit to form two elastic jaws h<8>, Fig. 16, so that they may be slipped on to or removed from the rods by twisting the jaws apart. The base of the rack may be hinged to an outer case. Also the rack may be mounted in vertical guides so as to be capable of sliding up and down, and both sides of the rack may be used. The rack may be circular, the rods &c. being mounted either inside or outside the structure.