baber/WOPTO huggingface dataset:
Patent GB-625954-A (GB)
Title: Improvements in dental engine hand pieces
IPC: A61C1/14
Filed: 1947-03-19
Abstract: 625,954. Dental handpieces. BJORKLUND, G. E. March 19, 1947, No. 7570. Convention date, March 20, 1946. [Class 81(ii)] A dental handpiece of the type in which the tool is held in a chuck at an angle to the driving shaft and which is provided with a tool-locking mechanism comprising a sliding member carried on the outside of the gear casing and displaceable in a plane perpendicular to the axis of the chuck, is characterized in that the tool-locking member is provided with spring clips forming an integral part of said member and adapted to engage the body of the hand grip and thereby retain the slidable member in position on the hand grip. An annular slot 2 in the tool shank projects through the gear casing and is engaged by a slot in the front portion of a slide 5 which is held on the hand grip 6 by means of two integral spring clips 8. The slide is guided by a projection 12 on the hand grip which co-operates with a grooved portion on the slide. When the head of the tool is engaged by the slide the tail portion of the latter enters a recess 14 in the hand grip, locking the slide in position. In a modification the slide may move in circumferential plane about the axis of the driving shaft, the slot in the slide being disposed at right angles to the axis of the hand grip.
Patent GB-595205-A (GB)
Title: Improvements in or relating to guides for the rams of forging hammers
IPC: B21J13/04
Filed: 1945-03-26
Abstract: 595,205. Power hammers. TERHUNE, H., and CHAMPION MACHINE & FORGING CO. March 26; 1945, No. 7587. Convention date, May 25, 1944. [Class 83 (iv)] [Also in Group XXXIV] A forging-hammer is provided with adjustable ram guide means comprising two vertically elongated elements, one of which is a guide member, said elements having engaging surfaces conforming with a vertical circle of long radius, means for holding one of said elements against vertical movement and means for adjusting the other element vertically. The hammer or ram 12 moves between vertical guides 17, each of which has a rear surface 20 conforming to a vertical circle of comparatively long radius. Each guide is urged into a slot in the framework of the machine by spring pullbaoks 37 and closely contacts the similarly curved forward surface of a backing plate 22. A wedge 23 is interposed between the base of the slot and the flat rearward face of the backing plate 22. By adjusting the wedge 23 by means of a screw and nut 24, 26, the guide and backing plate are moved bodily to or from the ram. If the backing plate is moved up or down by a similar screw and nut device, the guide is tilted in a vertical plane. Thus by raising the backing plate the lower end of the guide may be moved inwardly to compensate for the greater amount of wear which usually occurs at the lower ends. In a modified form, the wedge 23 is omitted, so that a tilting adjustment only of the guide may be obtained. In a further form, Fig. 4, the wedge is again omitted and the backing plate is in two parts 42. If both parts are raised or lowered together, a tilting adjustment is obtained but if they are moved towards or away from each other, a lateral movement of the guide is obtained. If desired, the backing plate could be fixed and the guide mounted for slight vertical adjustment over the surface of the plate.
Patent GB-961110-A (GB)
Title: Improvements relating to fluid flow control devices
IPC: F16K13/02
Filed: 1963-02-26
Abstract: 961,110. Valves. STICHTING WATERBOUWKUNDIG LABORATORIUM. Feb. 26, 1963 [Feb. 27, 1962], No. 7695/63. Heading F2V. Communication between ports 5, 6 is controlled by a hemispherical plug rotatable in a correspondingly shaped recess in a housing 1 and provided with a groove oblique to the axis of rotation and containing an 0-ring 15. Both ports are situated inside the largest circle which any part of the ring 15 can describe and one port 5, is situated within the smallest circle which any part of the ring 15 can describe. As shown, the valve is closed, but when the plug is turned through 180 degrees the ports 5, 6 are interconnected by a space formed by a flattened portion 12, which may have a recess 13, of the plug. The plug, which is sealed at its outer extremity by an 0-ring 17, is retained in the housing by a disc 9 and screw cap 11. The port 5 is at all times sealed from leakage by the two 0-rings 15, 17 and so is preferably used as the inlet. The outlet 6 may be vented by a passage (not shown) in the plug and stem 7 when the valve is closed; also, a plurality of outlets 6 may be provided spaced so that they may be separately connected with the port 5 or so that two may be so connected simultaneously. A port 6 may consist of a number of small parallel openings to avoid the passage of the ring 15 over a single, large opening, and the plug may be less than a hemisphere. Instead of the flattened portion 12 of the plug the latter may be formed with bores for interconnecting the ports 5, 6.
Patent GB-628387-A (GB)
Title: Improvements in or relating to epicyclic gearing
IPC: F16H47/08
Filed: 1946-03-12
Abstract: 628,387. Variable-speed gearing; clutches ; securing elements to shafts. BROCKHOUSE ENGINEERING (SOUTHPORT), Ltd., and GATISS, A. L. March 12, 1946, No. 7769. [Class 80 (ii)] In an epicyclic gear train for use with hydrokinetic transmission apparatus, the reaction element 26 has slidably but non-rotatably mounted thereon a dog clutch sleeve 36, engageable with one other element 30 or a stationary element 33, such sliding movement being effected by the movement of an operating member 76 in one plane, the member being constrained to move in a lateral plane simultaneously to apply a brake 63 to arrest rotation of the sleeve 36. A driving shaft 21 has mounted thereon a sun gear 23 meshing with a plurality of planet gears 24 freely rotatable on the spindles 25 rigid with the side plates 27, 28 which form the planet carrier or reaction member 26. The side plate 28 has an axial flange 35 concentric with the annulus 30 rigid with the driven shaft 22, the flange having splines 37 attached thereto, as has a slidable dog clutch sleeve 36 concentric with the flange 35. Between the splines 37, 38 of the flange 35 and the sleeve 36 are interposed rollers 42, the radial length of which is equal to the distance between the opposed concentric surfaces of the flange and sleeve, these rollers are restrained by the outwardly and inwardly projecting flanges 45, 46 respectively which also project circumferentially at 47. Axial movement of the sleeve 36 is effected by a shifter ring 55 operated from a shaft 60 (not shown) projecting from the side of the casing 20, to provide direct forward speed with the teeth 50 of the sleeve 36 engaged with the teeth 31 of the annulus, neutral when the teeth 50 are between the teeth 31 and the stationary teeth 32 and a reduced reverse drive when the teeth 50 engage the teeth 32. A brake drum 61 is secured to the sun gear 23 and is engaged by an annular braking ring 63 which is displaced inwardly by a braking arm carried on a spindle 69 (not shown) which also projects through the casing. The operating mechanism for the brake and clutch consists of a lever 76 (Figs. 12 and 13) movable in a longitudinal plane relative to a forked carrier 79 which is movable in a transverse plane to allow the lever 76 to co-operate with the three notches 83 of the gate 84 corresponding to the three gear positions. Transverse movement of the lever 76 and therefore carrier 79 is transmitted through the tube 72 and lever 81 to the spindle 60 (not shown) of the clutch sleeve operating mechanism, but this movement is only permitted by the gate 84 after the lever 76 has been moved longitudinally to disengage it from the notches 83, this longitudinal movement being transmitted through the spring loaded rod 85 and the bell crank 88 to the brake spindle 69 (not shown) to apply the brake 63. The gate 84 is arranged with convex faces 96 which ensure that the brake is fully engaged before the clutch sleeve is moved and that the braking force is relaxed before the dog teeth are fully engaged, to promote a rapid change of gear.
Patent GB-881919-A (GB)
Title: Improved apparatus for cutting vegetables or fruit
IPC: B26D3/18
Filed: 1960-03-04
Abstract: 881,919. Hand slicing-devices. SOC. INDUSTRIELLE DE FERBLANTERIE. March 4, 1960 [March 24, 1959], No. 7771/60. Class 28 (2). [Also in Group I] A hand slicing appliance that is interchangeable with a chip-cutting grid (see Group I) in a frame 1 comprises a plate 30 carrying straight and corrugated cutters 31, 32 against which a potato can be pushed to make slices, the potato being slid along a detachable plate 33 whose elevation can be adjusted to determine the slice thickness. The plate 30 may be reversed to bring corrugated cutter 32 into operation. The plate 33 hooks on to the end of the frame and has cam slots 39 traversed by a movable guide member 43 for varying its elevation. Alternatively the detachable plate may be furnished with a shaft (Fig. 16, not shown) having a cam and an operating knob whereby its angle of inclination may be altered. French Specifications 775,921, 799,656 and 801,138 are referred to.
Patent GB-475544-A (GB)
Title: Improvements in or relating to casting machines for easily oxidizable metals
IPC: B22D17/10
Filed: 1937-03-17
Abstract: 475,544. Casting-machines. WAGNER, K. F. March 17, 1937, No. 7793. Convention date, March 19, 1936. Addition to 475,541. [Class 83 (i)] In a casting-machine described in the parent Specification or in Specification 475,543 both the plungers 1, 2 in the pressure cylinder 7 advance to force the charge into the mould and the plunger 1 is then withdrawn beyond its starting position to allow the residue 12, Fig. 5, to be ejected. The plungers 1, 2 may have adjustable stops 15, 16 to prevent them from passing the gate 5 during the forcing stroke, and during this period they may be operated in mutual dependence by hydraulic or mechanical means, i.e. linkwork and cams. After the plunger 3 has delivered its charge the plunger 2 may first advance alone to close the opening 4 to the cylinder 8. The plungers 1, 2 may have passages 17, Fig. 2, for cooling or heating fluid. In a modification, more than two pressing plungers are used.
Patent GB-203727-A (GB)
Title: Improvements in and relating to electrically propelled motorvehicles
IPC: B61C9/52
Filed: 1922-03-17
Abstract: 203,727. Gordon, C. J. March 17, 1922. Electrically-propelled road cars; motors, supporting.-In a vehicle of the kind in which an electromotor arranged longitudinally is mounted on transverse trunnions, the ends of the trunnions are carried by bearings movable in the side frames. The motor 1 is fixed in a ring frame 2 having supporting trunnion members 3 and drives the axle through a universal joint 5, 6. A torque frame consists of three stays 8 connected to a ring 9 capable of slight rotary movement on the axle casing 11. The trunnions are mounted by self-aligning ball bearings in members capable of limited horizontal sliding movement. The trunnions may also slide in the bearings, movement being limited by springs 7.
Patent GB-635187-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B62D43/10
Filed: 1948-03-16
Abstract: 635,187. Vehicle luggage compartments. PRESSED STEEL CO., Ltd., and DIXON, J. C. March 16, 1948, No. 7827. [Class 103 (ii)] A vehicle body incorporates a luggage trunk in which there is mounted a platform or tray arranged for sliding movement and operable by manual or power means and so interconnected with a hinged trunk lid as to cause said lid to be raised or lowered by outward or inward movement of the platform. The trunk space is defined by the rear side walls 11, 12 and the rear seat back panel 13 and is closed by a lid 14. The sliding platform 21 is supported on runners 18 engaging through balls 20 other runners 17 attached to the vehicle chassis frame of which the panel 27 is dished to house the spare wheel 29 beneath the platform 21. Each hinge arm 15 of the lid carries an arm 30 pivotally connected by a link rod or chain 31 to the platform 21, so that outward sliding movement of the platform 21 automatically opens the lid 14. The platform may be moved by the handle 32 or by an electric or fluid motor (Fig. 2, not shown) mounted on the vehicle body to actuate a screwed shaft engaging with a block mounted on the underside of the platform and controlled by a push-button or the like mounted on the exterior of a body panel. Additional fixed platform panels 23, 24, 25 may surround the panel 21 or a hinged panel (Fig. 3, not shown) may be secured to the forward facing edge of the platform.
Patent GB-595771-A (GB)
Title: Improvements in or relating to the preparation of aryl sulphonyl thioureas
Filed: 1945-03-28
Abstract: Aryl sulphonyl thioureas and nuclear substitution products thereof are obtained by treating the corresponding aryl sulphonyl cyanamides with hydrogen sulphide.  Substituent groups which are mentioned are amino and acylamino groups.  In examples: (1) a pyridine solution of p-aminobenzenesulphonyl cyanamide is saturated with hydrogen sulphide, the pyridine removed and the product purified with carbon black in sodium carbonate solution. The p-aminobenzenesulphonyl thiourea is precipitated with acetic acid; (2) an aqueous ammonia solution of p-aminobenzenesulphonyl cyanamide is treated with hydrogen sulphide and purified as in example (1); (3) as in example (2) using alcohol as solvent; (4) a pyridine solution of the sodium salt of p-acetylaminobenzenesulphonyl cyanamide is saturated with hydrogen sulphide and the product treated with caustic soda to hydrolyse the acetylamino group; (5) as in example (4), but using the sodium salt of benzene sulphonyl cyanide.  The compounds of this invention are stated to possess bactericidal and anti-mycosic properties.
Patent GB-860448-A (GB)
Title: Improvements in skylight constructions
Inventor: WASSERMAN MAX
IPC: E04D13/035
Filed: 1959-03-06
Abstract: 860,448. Skylights. WASCO CHEMICAL CO. Inc. March 6, 1959, No. 7934/59. Class 20(3) A skylight comprises a built-up curbing, e.g. of rectangular form 1, 3 enclosing a skylight well 2, having a cover member 25 e.g. a plasticdome pivoted at 22 and a lever 40 pivoted at 41 in lifting-relationship with the cover 25 as shown. The cover 25 has a peripheral flange 22a which is secured to the horizontal flange 14 of a dome frame 13 positioned on the upper surface 12 of a cap flashing 10 terminating the inner and outer walls 3, 4 of the curbing. At the inner edge of the flange 14 a channel member 18 with its mouth vertical accommodates the upper end 42 of the lifting lever 40 weighted at its free end 43. A latch 50 opposite the hinge 22 holds the dome closed until positively released. One apron 28 of a retaining frame 27 rests over flange 22a of the dome while the other apron 29 extends downwardly beyond the outer edge of the dome flange 22a and is secured in spaced relationship to the apron 15 of the dome frame 13.
Patent GB-116525-A (GB)
Title: A Combined Rake and Hoe for Horticultural use.
Inventor: PARRY ROBERT
IPC: A01B1/20
Filed: 1917-06-04
Abstract: 116,525. Parry, R. June 4, 1917 Rakes; hoes.-A combined rake and scuffle or hoe comprises a rake portion c and a scuffle or hoe blade d carried by flat side plates e either riveted or secured detachably by bolts and nuts to the rake bar b, the scuffle blade being arranged in the same plane as the direction of movement of the implement.
Patent GB-1359580-A (GB)
Title: Sheet-cutting device
IPC: B65H35/00
Filed: 1972-02-21
Abstract: 1359580 Cutting apparatus NAPHTACHIMIE 21 Feb 1972 [22 Feb 1971] 7962/72 Heading B4B A device for cutting sheet material, e.g. plastics material comprises a carriage 6 having a blade 11 and movable over a slide 3 formed with a slot 5, the carriage being provided with members 8, 9 adapted, in use, to press the material against the slide such that the latter is stretched laterally of the slot as the blade moves therethrough to effect the cut. The slide 3 and carriage 6 are mounted in a housing 1 provided with a cover 2 enabling a supply reel 15 of material to be inserted into brackets 13, 14 in the housing. The members 8, 9, as shown, are in the form of rubber rollers tapered so that as they roll over the slide they effect a stretching of the material across the slot. In a modification, Fig. 3 (not shown), the tapered rollers may be replaced by cylindrical rollers rotatable respectively, on left and right hand threads so that, as they roll on the slide they move apart to effect stretching. In a further modification, elongated shoes (20), Fig. 4 (not shown), are mounted on the carriage in such a way as to effect stretching. In still further modifications, the cutting wheel may be replaced by a pricking roller in order to form a perforated line, the guide slide 3 may have a rounded edge over which the sheet material passes and more than one pair of rollers or shoes may be provided.
Patent GB-753688-A (GB)
Title: Improvements in or relating to pulse-modulating circuits for travelling wave tubes of the crossed field type
IPC: H01J25/44
Filed: 1954-03-18
Abstract: 753,688. Travelling-wave tubes; magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 18, 1954 [March 18, 1953], No. 7973/54. Class 39 (1). [Also in Group XL (c)] The output of a travelling-wave magnetron is modulated by applying pulses to an auxiliary electrode 7 in front of the cathode 3 and in line with the delay line 2. The auxiliary electrode is negatively biased and normally the cathode is blocked. The auxiliary electrode is suitably shaped to maintain a uniform field between the delay line 2 and the negative electrode 4. An electrode 12, Fig. 6, with fingers 13 may be provided between the auxiliary electrode and the cathode. During the pulses it is at an intermediate potential. The tube may be an amplifier, oscillator or frequency multiplier. In a backward-wave oscillator of the type described in Specification 699,893, the cathode is separate from the negative electrode and by varying the D.C. potential between the negative electrode and the delay line, the pulse modulated output is frequency modulated.
Patent GB-1125062-A (GB)
Title: Process for regenerating alkali metal citrates from spent aqueous citrate dispersions
IPC: C07C51/41
Filed: 1967-02-20
Abstract: 1,125,062. Regenerating alkali metal citrates. GENERAL DYNAMICS CORP. 20 Feb., 1967 [3 March, 1966], No. 8052/67. Heading C2C. Alkali metal citrates are regenerated from spent aqueous citrate dispersions by contacting the spent dispersion with an alkali metal hydroxide sufficient to raise the pH of the spent dispersion to at least 10À5, separating the precipitated solids, evaporating the resultant solution to dryness, leaching the resultant solid with an organic solvent that is capable of dissolving the alkali metal hydroxide but not the alkali metal citrate until an aqueous solution of a portion of the solid gives a pH from 8À5 to 9, and thereafter drying the remaining solid. Preferred alkali metal hydroxides are sodium and potassium hydroxide and a preferred organic solvent is methanol. Insoluble material is suitably removed from the spent citrate prior to treatment with the alkali metal hydroxide, the precipitated solids obtained during the process are preferably coagulated by heating prior to their separation and the organic solvent and the alkali metal hydroxide may be reclaimed from the solution obtained in the leaching step. The spent aqueous citrate dispersion may be one derived from an electrolytic descaling of metal with a citrate solution, or from a citrate solution that has been used for the removal of metallic scale from a surface.
Patent GB-1195683-A (GB)
Title: Improvements in or relating to apparatus for Testing the Wrappers of Wrapped Rods having Unwrapped Ends
IPC: A24C5/34
Filed: 1966-06-07
Abstract: 1,195,683. Testing cigarettes. MOLINS MACHINE CO. Ltd. and E. S. DOERMAN. 5 June, 1967 [7 June, 1966], No. 8054/70. Divided out of 1,195,682. Heading A2C. The Specification describes the same apparatus as that described in Specification 1,195,682 but the claims relate to the pressure (or suction) sensitive detector being connected to a space from which there is a predetermined leakage path to atmosphere between the cigarette and a seal surrounding the end portion of the cigarette.
Patent GB-195263-A (GB)
Title: Improvements in connection with the planting and transplanting of seedlings
IPC: A01G9/10
Filed: 1922-03-20
Abstract: 195,263. Harvey, J. N. March 20, 1922. Addition to 179,055. Flowers and plants, pots and receptacles for growing.-Disintegrated peat is added to the mixture of chaffed coco-nut fibre and clay or lime used in making the container for seedlings described in the parent Specification. The peat is ground in a disc-grinder and mixed with the fibre chaff; the clay or lime is paddled in a revolving arm mixer and the peat and fibre added in a steady stream. Fertilizing agents may also be added, and the material is moulded into pots.
Patent GB-1355832-A (GB)
Title: Filters for liquids
IPC: B01D27/08
Filed: 1971-03-30
Abstract: 1355832 Oil filter AUTOMOTIVE PRODUCTS Ltd 20 March 1972 [30 March 1971 17 Dec 1971] 8182/71 and 58779/71 Heading B1D An oil filter for use in an I.C. engine comprises a two-part housing 41, 48 (Fig. 1) of plastics material and containing an annular filter element 50 the interior of which is in communication with a fluid outlet 44 formed as a threaded tubular projection and the exterior of which is in comunication with a fluid inlet formed as a hole 47 between the fluid outlet 44 and a sealing ring 46 for sealing between the filter and the engine to which it is attached. One end 54 of the filter element has no rigid supporting plate and is carried directly by the end wall 48 of the housing. The other end of the filter element seals against an annular plate 53 spaced from the end of the housing. Sealing means 52 is provided to prevent oil by-passing the filter element. A non-return valve 56 formed by flexible flange 57 is mounted in the path between the inlet and the filter. In the embodiment of Fig. 3 the housing part 64 carries a helically slotted tube 62 integral with its end wall 63, the tube acting as an internal support for the filter element 65. Flexible annular flanges 81 provides the non-return inlet valve. A pressure-released by-pass valve is provided by slots 71 which are in communication with inlet 79 but are prevented from communication with outlet 63 by washer 73 which is urged sealingly upwards by spring 75. The outlet passage 68 may be extended by an imperforate tube 85 of the housing to be used with end 67 facing downwardly.