baber/WOPTO huggingface dataset:
Patent GB-804594-A (GB)
Title: Improvements relating to optical instruments
IPC: G02B27/62
Filed: 1956-02-06
Abstract: 804,594. Optical apparatus. FILOTECNICA SALMOIRAGHI S. P. A. Feb. 6, 1956 [Feb. 9, 1955], No. 3650/56. Addition to 761,804. Classes 97(1) and 97(2) An optical instrument, other than an automatic surveying level, for providing a line of sight which is accurately horizontal or at a predetermined angle to the horizontal, which has part of its optical axis substantially vertical and has a sighting reticle and an objective system which forms an image of the observed field on the recticle, has the reticle or the objective system pedularly suspended by the system set forth in Claim 1 of the parent Specification for correcting for the effects of small movements of the instrument. Thus the telescope system of cathetometer may be constructed as shown in Fig. 4 of that Specification. Fig. 2 shows the application to the scale reading system of a theodolite the scale 9 of which is observed through an eyepiece 12, containing a graticle, and suspended objective 10 using reflecting prisms 10a, 11. The scale is illuminated by light from a mirror 14 passing through a plate 14, lens 13 and prism 13a on to the rear of the scale. A small circle engraved on the plate 14 is imaged by the lens 13 on the scale and, by its position in the field of view of the eyepiece, indicates whether the errors of levelling of the instrument are within the limits which can be compensated by the suspension of the objective 10 or whether the instrument must be more accurately levelled. A similar system, comprising an eyepiece with its axis horizontal, a reflecting prism and a suspended objective with its axis vertical, is described as fitted into the base of a theodolite for viewing downwards to act as an optical plummet. Fig. 4 shows a device for checking the flatness of a surface on which its base 20a is placed. It comprises an objective 24, pentagonal prism 23, suspended reticle 22, a further lens system 20 a prism 19a, a fixed graticle 19 and an eyepiece 25. Movements of the image of an observed object, relatively to the graticle 22 indicate changes of level as between different parts of the surface; whereas the apparent relative displacement of the graticles indicates the inclination of any one part of the surface
Patent GB-979437-A (GB)
Title: Improvements relating to the heating of gases
IPC: B23K10/00
Filed: 1962-01-31
Abstract: 979,437. Cutting and welding by fusion. PLASMADYNE CORPORATION. Jan. 31, 1962 [Jan. 31, 1961; May 22, 1961], No. 3676/62. Headings B3R and B3V. [Also in Division H5] In a process, e.g. cutting, melting, spraying or welding electrically conductive workpieces, in which gas is heated and ionized by an arc established in an arc-making device by means of a first power source 31 and then passes out of the device into the ambient air through an opening in a front electrode 11 of the device to effect a heating operation, an independent second arc is established between the front electrode 11 and an electrically conductive workpiece 28 lying outside the device by means of a second power source 34. The device shown comprises a hollow water-cooled back electrode 10 and a water-cooled nozzle electrode 11 separated by an insulator 23. Gas is introduced into a vortex chamber 24 through a tangential inlet 27. In an alternative embodiment (Fig. 4, not shown) the source 34 is connected between the workpiece 28 and an additional water-cooled nozzle electrode separated by an insulator from the electrode 11. Welding may be carried out using filler material in the form of a rod or powder and the shielding gas may include argon, helium, nitrogen or hydrogen. Specification 891,463 is referred to.
Patent GB-1324756-A (GB)
Title: Axial piston machine
IPC: F04B1/20
Filed: 1972-01-26
Abstract: 1324756 Reciprocating pumps ROBERT BOSCH GmbH 26 Jan 1972 [3 Feb 1971] 3695/72 Heading F1A In an axial piston pump, including a casing 1, splined drive-shaft 3 and a rotating cylinder block 6 containing longitudinal bores 8 in which pistons 9 reciprocate due to the bearing of their sliding shoes 10 on an inclined swash plate 11, the kidney shaped inlet and outlet apertures 24 and 25 for a pressure medium provided in a valve plate 21 communicate with the openings 16 of the rotating cylinder bores 8. Opposed bores 30, 31 are provided in the web portions of the valve plate between the apertures 24, 25, which bores 30, 31 are inter-connected by a duct 33 formed in part by a sealed groove 34 on the inner periphery of the valve plate. The diameter of each bore 30, 31 is no greater than the distance between the openings of adjacent cylinder bores e.g. 8a, 8b, whilst the arcuate length of each web between the apertures 24, 25 is not less than twice the maximum width of the openings into the cylinder bores plus the diameter of a bore 30 or 31. Therefore, in operation of a pump with an odd number of cylinder bores, pressure medium in the deed volume of any bore, e.g. 8f, passing from the high to the lowpressure side of the pump, successively pressurises two bores, e.g. 8b, 8a, passing from the low to the high-pressure side, as these cylinder bores communicate via bores 30, 31 and duct 33. In a pump having an even number of cylinder bores, each bore similarly pressurises just the opposed cylinder bore as it passes from the high to the low-pressure side of the pump.
Patent GB-414701-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K7/14
Filed: 1933-02-07
Abstract: 414,701. Induction machines. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JACOBY, H. C. E., c/o General Electric Co., Witton, Birmingham. Feb. 7, 1933, No. 3744. [Class 35.] Coils ; frames ; polepieces.-The poles 2, 3 of a squirrel cage motor for a gramophone are connected by removable magnetic bridging pieces 15 held in place by U-springs 16 which also serve to hold the coils 17 in place. The pieces 15 may be slotted to diminish their action in shunting the rotor. The rotor shaft 19, reduction gearing 7, and gramophone spindle 8 are mounted in a one-piece frame 5, which is slid into a frame formed by the armature yoke and secured by screws passing through lugs 9. The spindle 8 is mounted on a resilient thrust ball-bearing in a bush 18 mounted in an opening in the member 9, the opening being of sufficient size to allow the worm-wheel of the reduction-gearing 7 to pass through.
Patent GB-387128-A (GB)
Title: An improved process for the manufacture of a structural material and the product thereof
IPC: C04B40/00
Filed: 1932-02-08
Abstract: An artificial stone is prepared by mixing an alkaline earth base such as lime, light burned magnesia, &c., a finely ground mineral containing aluminosilicic acid such as slates, shales, and certain clays, and sufficient water to produce complete reaction, e.g. 20-35 per cent on the dry weight of the solid constituents and heating under such conditions that substantially no loss of water takes place until the reaction between the constituents is complete and a hard stone like product is obtained.  The heating may be effected in a closed chamber in the presence of water vapour, or by steam at atmospheric pressure or at low pressure, or in an oven heated externally, steam at atmospheric pressure being injected, or in a hydrocarbon oil or in an aqueous solution of proper boiling point. The mass possesses sufficient rigidity to be carved or moulded or shaped in a lathe or on a wheel before being indurated.  Colours may be incorporated during the mixing.  If magnesia is substituted for lime the product is more resistant to chemical reagents.  The product is tough and not brittle and can be cut and polished.  Blocks and slabs capable of use for walls, ceilings and floors are made by embedding a layer of fibres between layers of the raw material and then indurating.  An insulating and soundproof material is obtained which can be sawn or chiseled.
Patent GB-1419657-A (GB)
Title: Heavy weight transporting truck
IPC: B63B9/06
Filed: 1973-01-25
Abstract: 1419657 Propelling vehicles MITSUI SHIPBUILDING & ENG CO Ltd 25 Jan 1973 [27 Jan 1972] 3805/73 Heading B7H A vehicle has an hydraulic piston and cylinder assembly 3, 6 whereby the piston-rod or cylinder of the assembly may be temporarily fixed to the ground for moving the vehicle by reciprocation of the hydraulic assembly. In a preferred embodiment a double acting fixing piston and cylinder assembly 12, 13 temporarily fixes the cylinder 3 by means of pins 9 engaging holes 14 forming a track in the ground. An hydraulic circuit including valve means is operable to permit the pressure oil to be introduced into the double acting main hydraulic cylinder 3 when oil pressure in the fixing cylinder 12 is increased to more than a predetermined value. Thus piston-rod G is pushed or pulled when the pin 9 is engaged or disengaged respectively from a hole 14 to move the truck 1 to the left. The hydraulic cylinder 3a at the other side of the truck is operated in the same manner but its phase differs by half a period. Moving of the truck in the opposite direction is caused by operation of a valve means (18), Fig. 4 (not shown), so that operation of the main cylinders and pin 9 is in opposite sequence to the above.
Patent GB-1018565-A (GB)
Title: Improvements relating to clips for fixing mirrors or other flat plates to back boards
Inventor: FRANKLIN ARTHUR ROBERT
IPC: A47G1/10
Filed: 1964-01-29
Abstract: 1,018,565. Clips. HARRIS LEBUS Ltd. Dec. 22, 1964 [Jan. 29, 1964], No. 3852/64. Heading E2B. [Also in Division A4] A mirror 10 is attached to a back board 8 by means of resilient E and F-shaped clips so that the edge of the back board 8 is held between arms 6 and tongues 1 of the clips, and the edge 12 of the mirror 10 rests on part 5 of F-shaped clips, and is held between tongues 1 and arms 7<SP>1</SP> of E-shaped clips. Each tongue 1 has a projection 2 which engages in a hole 9 in the front face of the back board 8. The clips may be formed of springy metal or of a resilient plastics material, e.g. nylon.
Patent GB-699420-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41F13/30
Filed: 1951-02-17
Abstract: 699,420. Printing machines. ARMSTRONG, J. W. Feb. 15, 1952 [Feb. 17, 1951], No. 3906/51. Class 100(ii) In a printing machine of the kind having superposed printing, intermediate and impression cylinders, the bearings 11 of the pressure cylinder 12 are mounted in vertical slides and connected to screwed rods 13 engaged in nut members 15 which are rotated to lift or lower the impression roller. The peripheries of the nut members are formed as worm wheels 14 for co-operation with worm gears 16 on a shaft 17 extending across the machine. The shaft 17 is driven from an electric motor 23 through gearing, the last wheel 18 of which is freely mounted on the shaft 17 and is formed with a clutch part 24. Another clutch part 25, slidable but not rotatable on the shaft 17 is urged against the part 24 by a spring 26 tightened by a nut 27. When a predetermined pressure has been attained between the pressure cylinder and the intermediate cylinder 29, the clutch parts slip relatively. Upward movement of the pressure cylinder is limited by a stop-switch 28 actuated by the end of one of the rods 13 to stop the motor. Several printing units may be arranged in tandem for multi-colour printing, the bearings of the several pressure rollers being arranged for simultaneous lifting and lowering.
Patent GB-764645-A (GB)
Title: Improvements in or relating to a process for the construction of windows in pressed sheet welded doors
IPC: B60J10/02
Filed: 1955-02-09
Abstract: 764.645. Windows REGIE NATIONALE DES USINES RENAULT. Feb. 9, 1955 [March 1, 1954], No. 3939/55. Class 20(3) A window opening is defined and a paneguide is formed in a pressed metal door, particularly a car door, by two angle-members 3, 4 having overlapping parts 31, 41 which are welded together and to the door 'sheets 1, 2, the assembly being completed by folding over parts 14, 23 of the sheets 1, 2 on to the members 3, 4, the folds being disposed inside the door. The members 3, 4 extend around three sides of the opening only, the pane being lowered into the door at the bottom of the opening where it is guided by U-shaped extensions of the side guides 3, 4. The door is reinforced bv corrugated plates, one on each side of the pane at the bottom of the opening, and within the door, the plates being held by interned folds of the flanges on the sheets 1. 2. In a modification, the window comprises a fixed pane and a horizontally sliding pane, the guides 3, 4 being omitted at the bottom of the opening where a screwed-on retaining strip is fitted. In another form, the retaining strip is made as short as is consistent with allowing the panes to be fitted; is made of plastic and is shaped to serve as a door handle.
Patent GB-496347-A (GB)
Title: Improvements in impulse senders of the type used in telephone systems
IPC: H04M1/34
Filed: 1938-02-09
Abstract: 496,347. Speed - controlled brakes. GENERAL ELECTRIC CO., Ltd., and PUCKETTE, C. C. Feb. 9, 1938, No. 3972. [Class 103 (i)] [Also in Group XXXIX] The governor of a dial type impulse-transmitter for telephone systems comprises the usual fly weights (not shown) rotating inside a cup 19 which has a conical inner surface and is adjustable axially by a screw pin 21 rotatably mounted in bracket 22. The pin is prevented from moving axially by spring members 17 engaging a groove in the pin, and the cup is prevented from rotating by a pin thereon (not shown) sliding in bracket 22.
Patent GB-482065-A (GB)
Title: Apparatus for delivering a predetermined quantity of liquid
IPC: G01F11/02
Filed: 1937-02-10
Abstract: 482,065. Delivering measured quantities. DEGORY, A., HAWKINS, R. S., and LIBOVITZ, C. J. H., (trading as ALAN & CO., D.). Feb. 10, 1937, No. 4015. [Class 102 (i)] Apparatus for delivering measured quantities of liquid,e.g, upper-cylinder lubricant, comprises a container 1 carrying a pump cylinder 6, the piston 7 of which is operated by a sleeve 8, sliding on the exterior of the cylinder. The container comprises a glass cylinder clamped between end caps 14, 15 by bolts 18. The cap 14 carries the handle 17, and the cylinder 6 is secured to the cap 15 by studs 12. The cap 15 also carries a filter 26 and the pump suction valve 3. The discharge valve 4 is housed in the piston rod, which carries a discharge nozzle 10. Air is admitted to the container by valves 24, 25 and a tube 23.
Patent GB-892186-A (GB)
Title: Method of and viewing apparatus for viewing both sides of a moving length of cloth
Inventor: SCHUMANN KURT
IPC: D06H3/04
Filed: 1960-02-04
Abstract: 892,186. Inspecting fabrics. TEXTILMASCHINENBAU GERA VEB. Feb. 4, 1960, No. 4078/60. Drawings to Specification. Class 42 (2). In a method of inspecting both sides of a length of cloth, it is passed twice over a viewing table in the same direction and turned about its longitudinal centre line between the two viewed portions. The cloth may be turned twice by 180 degrees by passing it over two rollers set at right angles to each other and then reversed back over the table parallel to the first viewed portion of the cloth, the table being more than twice the width of the cloth. In a second embodiment a roller for reversing the direction of the cloth is placed between the two twisting rollers and the table is formed in two parts placed one behind the other in the direction of travel of the cloth.
Patent GB-404153-A (GB)
Title: Balancing of tubular shafts
IPC: F16C3/02
Filed: 1933-02-10
Abstract: 404,153. Balancing shafts. HARDY, SPICER, & Co., Ltd., and SPARROW, W. E., Birch Road, Witton, Birmingham. Feb. 10, 1933, No. 4117. [Class 80 (ii).] A tubular motor-vehicle propeller shaft 11 is balanced by one or more press-fitted internal plugs 14 having eccentric holes 15, 16, or additional welded segmental plates 17. The plugs may, as shown, be plain or cupped pressings. Universal-joint parts 13 are spigotted and welded in the shaft ends.
Patent GB-665211-A (GB)
Title: Improvements relating to kinematograph film projection apparatus
IPC: G03B21/32
Filed: 1949-02-15
Abstract: 665,211. Kinematograph projectors. SABINE, C. A. March 14, 1950 [Feb. 15, 1949; Feb. 15, 1949], Nos. 4163/49 and 4164/49. Class 97 (i). In an endless film projector the film rests on radial rollers on a horizontal support with a core member with a freely movable film contacting surface within the central aperture of the coil, the support being rotated to unwind film from the centre of the coil at a linear speed which is less than the speed of take-up by the projector mechanism by an amount sufficient to tension the film to secure steady film feed from the coil. The said linear speed is preferably not less than 95 per cent of the speed of take-up by the projector. In the form shown, the support 1 carries a number of radial rollers 2, each formed of a number of independent portions 4. This support is first secured by screws 9 to an assembly of a flange 7 and hub 12 tapering towards its outer end. The spool thus formed is wound with film on an ordinary re-winder. This spool is then held horizontal, with the support 1 at the bottom, and the flange 7 and hub 12 removed. The support 1, with the film coil, is placed on the disc 18 carried by a shaft 17 forming part of the projector, being located on the disc by dowels 8 engaging holes 5. The support is secured by a spacer 46 and a nut 45 engaging the end of the shaft. The bearing for the shaft 17 is at the intersection of three radial arms 20 (only two shown) which also carry at their outer ends vertical posts 30 with threaded end portions 33. The cover-plate 32 is then placed in position, the holes 34. passing over the ends of the posts 30 to which nuts 35 are then secured. Rollers 36 engage the inside of the film coil, one of them, 38, being inclined to allow the film to be led up through the aperture 37 and over the pulley 47. After passing through the projector the film returns to the outside of the coil over the pulley 48. Rollers 40 bear on top of the film coil. They are journalled in the plate 32 in bearings slotted vertically. Specification 416,557 is referred to in the first Provisional Specification.
Patent GB-719298-A (GB)
Title: An improved machine for the manufacture of continuous assemblies of envelopes or the like
IPC: B31B27/00
Filed: 1951-02-21
Abstract: <PICT:0719298/III/1> <PICT:0719298/III/2> In a machine for making continuous envelope assemblies of the type which are built up from a series of identical blanks (see Group XVII) the folded blank passes pressure rollers 47, Fig. 6, to the gumming device 48, which comprises side segments 50 joined transversely at one end by a bar 51 which apply gum adjacent the sides of the back member 2, Fig. 2 (not shown) of the blank and adjacent the edge adjoining the flap 3, Fig. 2 (not shown).  The gum applicator is fed by a drum 52 mounted in a gum bath 53 containing a rotary agitator 55, the quantity of gum transferred being regulated by a scraper 54.  Coaxial discs are interposed between the segments 50 to support the blank during gumming and the bar 51 co-operates with a spring-loaded pressure member 49. The gummed and folded blank then passes over rollers 57 ... 60 which are gapped to avoid contact with the gummed areas.  The assembly emerging from the perforating roller 74, Fig. 7, and pressure rollers 77 may be passed to a flap gumming assembly 80, supplied from a gum bath 81 and drums 82.  The rotary gumming member comprises transverse bars 83 supported on end discs 84 and a pressure bar 85 carried by a cam-operated arm 86 raises the flaps 3 against a bar 83.  The assembly discharges on to the conveyer 87 of the drying oven.
Patent GB-1269885-A (GB)
Title: Improvements in or relating to electronic watches
IPC: G04B33/00
Filed: 1970-01-28
Abstract: 1,269,885. Watches. BULOVA WATCH CO. Inc. Jan.28, 1970 [Feb. 6, 1969], No.4194/70. Heading G3T. An electronic watch uses a button-type mercury cell 2 which extends from a peripheral point 3 on a pillar plate (1) Fig. 2 (not shown) to the vicinity of or beyond the axis of the hands. A tuning fork resonator 4, having times 6, is arranged at the side of the cell 2 and each tine 6 carries a pair of permanent magnets 7 which interact with a flat coil 8 comprising a sensing and a drive winding. The coil 8 is supported by a plastics module 9 containing the electronic circuit. A minute wheel 24 which drives an hour wheel 26 by means of a pinion 25 is completely within the projected area of the cell 2 when viewed perpendicularly to the pillar plate (1).
Patent GB-566767-A (GB)
Title: Improvements in level luffing jib cranes
IPC: B66C23/10
Filed: 1943-03-15
Abstract: 566,767. Jib cranes. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd., and KAY, I. March 15, 1943, No. 4219. [Class 78 (iv)] A level-luffing jib crane has a balanced jib which (1) has a C.G. moving in a substantially horizontal path during luffing of the jib, and (2) is supported by links or the equivalent in such a way that the end of the jib remote from the load moves in a substantially-vertical path during luffing. In the diagrammatic form shown in Fig. 3, the jib AB has its C.G. at L and is constrained by two radius arms H, F, the arm H being pivoted to the crane frame (not shown) at J and to the jib at a point C such that the arm H equals the part B of the jib. The arm F is pivoted to the crane frame at G and also at E to an arm D which is rigid with the jib and the length CE of which is equal to the parts B, H. The pivots J, G and the rear end of the jib are all in the same vertical plane, the pivot J is arranged to be in the same horizontal plane as the point L of the jib, and the arms H and F if produced meet at a point K which is vertically below the point L and is in the same horizontal plane as the rear end of the jib. This applies in all positions of the jib, so that it follows that the point L moves in a horizontal path. In order to reduce the height of the crane post necessitated by the high position of the arm H, this may be replaced by an arm O pivoted to the crane frame at P and to the arm D at Q, the point P being on the line joining the points J and E and the point Q being on the line joining the points P and K. If the C.G. of the jib is at its centre of length, a single hoisting rope willserve, since the pulls M, N of its two ends balance each other, but if, e.g. the C.G. at the point L is at a distance from the rear end of the jib equal to “ the length of the jib, as shown in Fig. 7, then the single rope fall M at the jib-head must be balanced by a triple rope-fall N<1> at the rear end. For this purpose, the hoisting rope passes from the 'load hook T over pulleys R, S on the jib and then as three falls N<1> over a pulley G to the hoisting drum V. A second load hook T' may be suspended from a rope having two falls M<1>, M<2> and passing over a pulley R<1>, another pulley S and three falls similar to N<1> to a hoisting drum V<1>, the two falls M<1>, M<2> being used because of the position of the pulley R<1> midway between L and R. The jib is preferably luffed by a screw Y pivoted at Y<1> to the jib near the point L and engaged by a motor-driven nut Z pivoted to the crane frame at Z<1>.
Patent GB-1481174-A (GB)
Title: Gas ignition devices
IPC: F23Q3/00
Filed: 1974-01-30
Abstract: 1481174 Piezoelectric spark generators PLESSEY CO Ltd 16 Jan 1975 [30 Jan 1974] 04262/74 Heading H2A In a piezoelectric spark generator, a pivotally mounted crystal assembly is compressed by a rockable blade member. In the igniter shown, a crystal assembly 1 is pivotally mounted at one end 2 on a set-screw 5 in a frame 15, and at the other end 3 is acted on by a rockable blade 8, the blade having a projection 7 pivotally received in a recess 3a in the end 3 and having a projection 13 pivotally received in a recess 14a in a portion 14 of the frame 15. Rotation of a lever arrangement 9, 10, 11, 12 in which the blade 8 is mounted thereby varies the separation between the end 3 and the frame portion 14 as the blade 8 rocks, and a consequential compression of the assembly 1 produces sparking at the end of a probe (18, Fig. 3, not shown) of the igniter. The blade 8 may be produced by a blanking operation on sheet metal, e.g. spring steel.