baber/WOPTO huggingface dataset:
Patent GB-466805-A (GB)
Title: Improvements in or relating to mechanism for grinding artificial dentures
IPC: A61C11/02
Filed: 1935-12-05
Abstract: 466,805. Making artificial teeth. ROEBUCK, L. N., and EVERETT, S. J. Dec. 5, 1935, No. 33756. [Class 81 (ii)] A device of the kind in which artificial dentures are finished by grinding the, teeth of one denture against its counterpart comprises a driving device for a denture carrier and resilient guiding means for permitting the carrier to move in an orbital manner whilst preventing revolution about its axis. The mechanism is shown as mounted in an articulator of the kind described in Specification 424,684 and comprises a sleeve 3 rotatable by a pulley 4 in a bearing 2 carried by a frame or support 1. The sleeve 3 has an eccentric bore through which extends a pin 6 threaded into a carrier 7 for the upper denture. A soft rubber ring 11 is mounted in the space formed by flanges on the periphery of the support and denture-carrier and is connected by alternate pins 14, 15 to the support and the denture carrier respectively. On rotation of the sleeve the eccentric pin causes limited movement of the carrier in a circular orbit. movement about an axis being restrained by the resilient rubber ring. Adjusting screws 18 are provided for varying the angular position of the pivoted frame member 1 during the grinding ; a loading weight 25 is also mounted on the frame:
Patent GB-507065-A (GB)
Title: Manufacture of compounds of the anthraquinone series
IPC: C09B1/50
Filed: 1937-12-07
Abstract: 507,065. Anthraquinone derivatives. OLPIN, H. C. Dec. 7, 1937, No. 33821. [Class 2 (iii)] A leuco -1-amino-4-hydroxyanthraquinone is made by acting with ammonia on a leuco-1.4- dihydroxy - anthraquinone free from amino groups, and discontinuing the reaction before any substantial proportion of the corresponding 1.4-diamino-anthraquinone has been produced. Further substituents may be hydroxy, alkoxy, sulpho- or halogen. Advantageously the ammonia is employed in excess at below 40‹ C. The reaction may be effected in presence of water or an organic liquid such as ethyl alcohol or other aliphatic alcohol. The leuco body first obtained may be oxidized by free oxygen in presence of pyridine or piperidine, with sulphuric acid with or without nitrobenzene, or with substantially anhydrous sulphuric acid according to Specification. 501,341. In an example, leucoquinizarin is treated with aqueous-alcoholic ammonia, followed by oxidation with 96 per cent sulphuric acid, with or without nitrobenzene.
Patent GB-1007687-A (GB)
Title: Heating and/or drying apparatus
IPC: A47K10/06
Filed: 1963-08-27
Abstract: 1,007,687. Towel rails. W. F. MANTLE. Aug. 27, 1964 [Aug. 27, 1963], No. 33859/63. Heading A4U. A tea-towel &c. airer comprises an electric heating element 10 supported in a tube 12 formed by bending a suspension plate 11 which may be flat, corrugated or finned, or tube 14 having flanges 15 which are screwed to the top of the plate, being provided for receipt of a wall &c. mounted bracket arm. In modifications, the plate 11 is hollow and filled with oil or other suitable liquid, and diminishes in thickness and/or width from top to bottom.
Patent GB-639077-A (GB)
Title: Improvements in and relating to presses for tiles and the like
IPC: F16P3/00
Filed: 1947-12-23
Abstract: 639,077. Machinery safety devices. BOULTON, Ltd., W., and BOULTON, J. Dec. 23, 1947, No. 33918. [Class 80 (iv)] In a power driven press a pivotally movable locking arm 12 co-operates with a collar 10 on the control rod 11 of the press starting mechanism so that the starting lever 16 cannot be actuated until the arm 12 is operated to release the rod 11.
Patent GB-307132-A (GB)
Title: An improved method and means for treating artificial stone, cement and like material
IPC: B28B7/36
Filed: 1927-12-16
Abstract: 307,132. Maguire, W. Dec. 16, 1927. Processes.-Moulded articles of cement or the like having the appearance of aged or weathered stone are formed by embedding soluble material, such as crystals of magnesium sulphate, in the surface during the moulding, this material being afterwards dissolved out leaving a pitted surface. The interior of the mould may be smeared with thick oil to hold the crystals or other soluble matter in position. The pitted article may be afterwards coloured grey or other suitable colour and burnished with a wire brush to expose the high lights.
Patent GB-417359-A (GB)
Title: Improvements in variable speed gears
IPC: F16H3/08
Filed: 1933-12-06
Abstract: 417,359. Variable - speed gearing. SMITH, W., Mayfield Villa, Harcourt Street, Luton. Dec. 6, 1933, No. 34236. [Class 80 (ii).] A variable-speed gear more particularly for pedal cycles comprises a number of trains of gears C giving different speed ratios supported in a stationary frame D and arranged between, and in constant mesh with, a central driving pinion A and a concentric internal driven gear E, with a clutch in each train for the engagement of that particular speed. These clutches may comprise balls or the like which are pushed up by studs N through radial openings in the gear shafts, which are hollow, to engage in recesses in the bore of a gear in each train which normally rotates freely. The studs N are operated by the rotation of a ring K with suitable projections which select the desired gear. The concentric internal driven gear E may form a sprocket for a belt, chain or bevel drive and the device may also include a free wheel and a brake. In a modification, the internal driven gear E does not drive direct but drives constantly, through one gear of the high speed train, another gear co-axial with the driving pinion A and attached to the final driving wheel or sprocket, whereby the number of gear wheels required in each train is reduced.
Patent GB-187892-A (GB)
Title: Improvements in and relating to galvanic batteries
IPC: H01M6/32
Filed: 1921-12-20
Abstract: 187,892. Fullers United Electric Works, Ltd., and Welch, A. P. Dec. 20,1921. Electrodes; electrolytes.-A cell of the type which requires the addition of water to render it active is constructed so that the dry electrolyte is kept from effective contact with the carbon electrode during storage. After the addition of water relative movement between parts of the cell brings the electrolyte paste into contact with both electrodes. As shown in Fig. 1, the dry electrolyte b which may be of the kind described in Specifications 102,294 and 152,818 is placed' at the bottom of the zinc container a and forms a support for the carbon electrode c which is carried by the cover d. When the cell is required for use the cover with the carbon electrode is removed and water added to convert the electrolvte into jelly or paste. The cover and carbon electrode are then replaced and the cover pushed down to force the electrolyte upwards between the carbon and the zinc container. A greaseproof paper or other disc may be placed above the dry electrolyte which may also be insulated from the container.
Patent GB-646426-A (GB)
Title: Improvements in or relating to electric heater and method of making same
IPC: H05B3/48
Filed: 1946-11-19
Abstract: 646,426. Electric heating resistances. TUTTLE & KIFT, Inc. Nov. 19, 1946, No. 34287. Convention date, Dec. 6, 1944. [Class 39(in)] Two or more conductors, at least one of which is a helical resistance, are embedded in insulating powder 16 compressed into a hard mass within a tubular metal sheath 10 at least a portion of which is bent into a crooked form, the conductors being similarly bent and spaced apart and extending lengthwise therein and being connected together within one end of the sheath and each having at the other end a separate terminal extending through that end of the sheath. The performed metal sheath is completely filled by the magnesium oxide powder and by the conductors and is closed at both ends. Two parallel helical resistances 14, 15 are spaced apart in the same plane in the powder in a serpentine sheath which may be flattened on the top 13, the helices being similarly flattened. The sheath may also contain a return conductor 35 which may be a pulled-out extension of a helical resistance. A separate terminal 17, 18 may lead out from each helix, and a common terminal from the return conductors, the inner ends of the terminal being embedded in the powder. In Fig. 1 a terminal 20 extends out from the joined end of the heating wires. The helices in the sheath may be of unequal resistance and may be used separately, in parallel or in series. The heater is made by spacing the wires in a straight sheath. Powder is gradually supplied and compressed by a tamper having apertures for the wires, which is reciprocated and gradually raised as in Specification 165,443, [Class 39(iii)], and U.S.A. Specification 1,547,335. The element is then bent and swaged. In Fig. 8 a ceramic plug 53 supporting the wires is held on a shoulder 54 at one end of the tube, which is closed by a metal washer 71. Centraliser or tamping tubes 64, 65 are placed over the helical resistances. Insulating powder is gradually added and tampered by a tamper head 79 by vibration of the sheath and by the tubes 64, 65 which are gradually withdrawn. A metal washer 67 closes the top end, and the element is swaged or drawn through a die. The upper end of the sheath with the washer is cut off at the crimped portion. The compressed powder is so solid that no further closure at this end is required. The sheath is then bent e.g. to a circle to form a range unit. A sheath may contain three or more helical resistances, and all the terminals may be at one end. The element may be mounted pivotally as in Specification 646,427 and have a switch for intermittent control as in Specification 631,416 [Group XXXVII]. Specifications 383,292, 463,033 and 472,159 also are referred to.
Patent GB-961948-A (GB)
Title: Improvements in or relating to backward wave oscillators
Inventor: ASH ERIC ALBERT
IPC: H01J25/40
Filed: 1960-10-06
Abstract: 961, 948. Digital electric calculating apparatus. STANDARD TELEPHONES & CABLES Ltd. Oct. 6, 1960, No. 34293/60. Heading G4A. [Also in Division H1] A computer memory device which can be rapidly switched from operating stably at one frequency to operating stably at a different frequency corresponding to different modes of oscillation is constituted by a backward-wave travelling-wave tube oscillator having two or more beams interacting with a common slow-wave structure (see Division H1). The beams are operated at the same current, but with different velocities and the switching is accomplished by applying pulses to the beam current control grids.
Patent GB-824719-A (GB)
Title: A grinding head for card clothing grinding apparatus
IPC: B24D7/06
Filed: 1957-11-04
Abstract: 824,719. Abrasive tools. SNAPE, E. A. Nov. 4, 1957 [Nov. 26, 1956], No. 34306/57. Class 60. An abrasive tool for grinding substantially rounded points on the teeth of a card clothing cylinder C comprises a substantially cylindrical head 1 having radially-projecting abrasivefaced elements 16 in each groove of two pairs of grooves extending helically one pair on each side of a central zone 8 to the end surface of the head, the inclination of the respective pairs of grooves being equal and opposite with respect to the axis of the head. The cylindrical head has integrally formed or secured to the centre of its outer surface a rib 8 which, in turn, is secured to the ends of helically-formed spacers 9, 9<SP>1</SP>, 10, 10<SP>1</SP>, extending slightly beyond the ends of head and slidable on its surface. The abrasive elements 16, which are fairly rigid, semiannular or continuous, and preferably made of plastic coated on both plane surfaces with abrasive, are placed in the grooves between the spacers, and the whole clamped together by means of plates 13 and screws 14 ; the plates may be provided with opposed angular slots in which the outer ends of the elements are located. The head is keyed to and slidablyengages a slotted rotatably-driven tube T and is axially-reciprocated across the cording cylinder with the abrasive elements engaging the sides of the teeth by the operation of a differential mechanism which provides relative rotation between the tube T and a shaft S formed with a reversing helical groove G engaged by a spring- pressed fork 6 pivotally-connected to the head.
Patent GB-815270-A (GB)
Title: Improvements in and relating to ground posts
IPC: E04H17/10
Filed: 1956-11-09
Abstract: 815,270. Fencing. BRAMLEY, A. Oct. 29, 1957 [Nov. 9, 1956], No. 34388/56. Class 45. [Also in Group XXXVI] A post structure, particularly for electric fencing, comprises a post 13 driven into the ground 14 and carrying at its upper end a wire or wires 11, 12 which exerts a lateral force on the post, a strut 20 engaging the upper end of the post and having a lower end engaging the ground, and two cranked arms 24, 25 engaging the ground and attached to the post, the arms being disposed on either side of the projection of the line in which the force acts. The lower end of the strut is formed by a triangular plate 23. As shown the connection betweeen the strut and the post comprises a fork on the strut engaging the post beneath an abutment 15, but a modified connection comprises a ring at the end of the strut co-operating with an open loop in the post. The post passes through openings in the arms and may carry a tread which rests above the arms. The wire or wires are wound about a metal sleeve mounted on a bobbin shaped insulator 16 which rests on the abutment.
Patent GB-173239-A (GB)
Title: A device for the noiseless operation of driven shafts
IPC: F02B75/22
Filed: 1921-12-21
Abstract: 173,239. Oesterreichische Daimler- Motoren-Akt.-Ges. Dec. 21, 1920, [Convention date]. Void [Published under Sect. 91 of the Act], Balancing reciprocating parts of machinery.-- Comprises a device for eliminating noise in shafts subjected to fluctuating loads, such as valveoperating cam shafts in internal-combustion engines. Such a shaft, 8 carrying cams e', a', &c. driven through a toothed gear 15 tends to go faster and slower so as to produce chattering of the gear teeth. An additional cam disc 9 is provided acted on by a spring or weight loaded bowl 12 to produce balancing or steadying couples. The bowl 12 may be employed to do work. Specification 13126/08 is referred to.
Patent GB-1471358-A (GB)
Title: Fluid flow control devices and pressure regulated water sprink lers including same
IPC: F16K39/04
Filed: 1974-08-05
Abstract: 1471358 Spray producers M DRORI 5 Aug 1974 [10 Aug 1973 15 Nov 1973] 34440/74 Heading B2F [Also in Division F2] A fluid flow control device has inlet and outlet passages 4, 6 in a housing 2, connected together by a passageway 14 with which a disc 30 with a seal 34 co-operates by movement to positions to open or obstruct fluid communication between the inlet and outlet, under control of a piston 22 operating in a cylinder 20 arranced co-axially with the passageway 14, the piston and disc being connected together by means such as rods 32 extending through the passageway from the disc at the outlet to the piston on the inlet side and there being a coil spring 40 applying biasing force to open the disc and a rod 24 extending out of the cylinder, by which the disc may be manually positioned, the piston and disc having equal cross sectional areas. The device functions as a pressure regulator when the disc is open with inlet pressure forces balance between the disc and piston and the outlet pressure force applied against the spring. The regulated pressure may be applied to a spraying nozzle 56 in which the jet impinges on a spring- loaded arm 58, 60 causing its movement whereby a hammer 62, by striking a stop sets up oscillations of the arm.
Patent GB-1029354-A (GB)
Title: Bearing assemblies
IPC: F16H57/02
Filed: 1964-08-24
Abstract: 1,029,354. Bearings; differential gear. FORD MOTOR CO. Ltd. Aug. 24, 1964 [Sept. 9, 1963], No. 34449/64. Headings F2A and F2D. In an assembly a rotary part is mounted in two taper roller bearings in a housing, the axes of the rollers converging inwardly of the housing and the coefficient of thermal expansion of the housing being greater than that of the rotary part so that on heating the axial expansion of the housing relative to the rotary part compensates at least partially for its relative radial expansion and an interference fit between rollers and races is therefore maintained. In the embodiment, a differential gear has output shafts 228, 224 respectively journalled within steel sleeve extensions 174, 168 of the differential carrier housing, the extensions themselves being journalled in taper roller bearings 179, 172. The aluminium outer housing 14 has shoulders 182, 198 respectively abutting the axially inner faces of the outer races, and nuts 192, 206 on the extensions abut the axially outer faces of the inner races, preload applied to the bearings by adjustment of the nuts being maintained on heating.
Patent GB-198297-A (GB)
Title: Improvements in and relating to resilient wheels
IPC: B60B25/20
Filed: 1922-12-18
Abstract: 198,297. Tingley, T. I. Dec. 18, 1922. Spring wheels.-Between a flared annular rim portion 12 of the wheel body 10 and a flared annular retaining member 14 is fitted a felloe 21 formed with a hollow rim portion 24 of equilateral triangular cross-section and a central inwardly-directed flange 22. An annular ledge 13 on the wheel body abuts against a flange 16 on the retaining member, which is built up of sections 17. Bolts 18 which fit apertures in the wheel body and retaining member 14 and pass through larger apertures 23 in the flange 22 of the felloe, are fitted with springs 20 which compress between nuts 19 on the bolts and the retaining member 14. Rubber dust-covers may be fitted over the springs.
Patent GB-1202203-A (GB)
Title: Improvements relating to refrigerating apparatus
Inventor: NICHOLDS KENNETH EDMUND
IPC: F25B9/14
Filed: 1966-08-02
Abstract: 1,202,203. Fluid oscillators. HYMATIC ENG. CO. Ltd. Oct.30, 1967 [Aug.2, 1966], No.34590/66. Heading G3H. [Also in Division F4] Pulses of gas are fed to a pulse tube refrigertor by the provision of a pure fluid logics switch between a supply of gas under pressure and the pulse tube. As illustrated the switch comprises an inlet 31 connected and the gas supply, an outlet 34 connected and atmosphere and another outlet 35 connected and the pulse tube inlet and outlet 15. A control jet 33 is connected and the warm end 16 of the pulse tube and another control jet 32 is connected to a reference pressure chamber formed between portitions having apertures 36 and 37 which communicate with the gas supply and with atmosphere. Thus the rise and fall of pressure at the warm end of the tube causes the gas supply and be switched between the outlets 34 and 35. The pulse tube inlet and outlet 15 is connected through regenerators 24 and 25 with the lever (cold) end of a tube 20 forming the pulse tube proper. Arsevoir 21 communicating with the normal gas flow path through slots 23 acts to provide thermal inertia for evening out load fluctuctions. In another embodiment, Fig.2 (not shown), the outlets 34 and 35 are connected radially and tangentially respectively to a vortex chamber (40) control jet 32 is fed from the connection of the outlet 34 and the vortex chamber.
Patent GB-1082676-A (GB)
Title: Drying device for adhesive applied to soles of shoes
IPC: A43D95/12
Filed: 1964-08-24
Abstract: 1,082,676. Endless conveyers. SCHON & CIE G.m.b.H. Aug. 24, 1964 [Aug. 24, 1963; July 15, 1964], No. 34611/64. Heading B8A. [Also in Division F4] In apparatus for drying glued shoe soles 7, Fig. 1, the soles are transported along a horizontal endless or roller conveyer 9 above a sensing means 11 which activates the drive motor of a vertical endless conveyer 5 to intercept the soles and transport them on supports 6 on a vertical path away from the conveyer 9 and back to a further horizontal endless or roller conveyer 10 for delivery to a container 13. The vertical conveyer 5 is moved incrementally by a further sensing means 12 which is actuated by cams or the like on the conveyer 5 to interrupt the power to the drive motor. A further embodiment is described wherein a single horizontal conveyer is utilized instead of conveyers 9, 10 and the conveyer 5 follows a rectangular path. In another embodiment, three vertical conveyers 16, 17, 18, Fig. 5, extend the path of travel of the soles in conjunction with a feed conveyer 30 having a path of travel at right angles to the vertical paths of the conveyers 16, 17, 18. The soles are fed from the belt 30 to the conveyer 18 by a. rotary arm 20 and cyclically operated lifting arms 25 left the soles from individual belts 24 between the vertical conveyers on to which the conveyers deposit the soles to feed them to the next adjacent vertical conveyer.
Patent GB-878260-A (GB)
Title: Cold-cathode stepping tubes
Inventor: GLACKIN JAMES MEREDITH
IPC: H01J17/48
Filed: 1959-10-13
Abstract: 878,260. Multi-gap cold-cathode tubes. MULLARD Ltd. Oct. 13, 1959, No.34671/59. Addition to 875,484, Class 39(1). In the cold-cathode stepping tube of the parent Specification in which a central anode is surrounded by a circular row of cathodes and in which there is also provided at least one marker cathode to which and from which a discharge may transfer during the travel of the discharge around the electrode assembly, the surface of the marker cathode has a higher work function than the surfaces of the row of cathodes in order to increase the breakdown voltage between the marker electrode and the anode. The marker cathode may comprise nickel coated with platinum, or a solid platinum wire, and the anode and the row of cathodes may be made of nickel, or the marker cathode may be made of nickel and the row of cathodes of molybdenum.
Patent GB-1272483-A (GB)
Title: A roof window having a pyramidal frame construction
Inventor: PERSSON PER ANDERS
IPC: E06B3/50
Filed: 1969-07-09
Abstract: 1,272,483. Roof windows. R. L. KALLIN. 9 July, 1969, No. 34678/69. Headings E1J and E2M.  A roof structure comprises a pyramidal frame 2 covered by a roof 3 at its top and by trapesium shaped sections 4 at its lower sides, a section 4 being movable with its top guided on means 5 which extend up the centre of a side of the frame, and its bottom guided on means 6 which extend outwardly from the base of the frame at an angle to means 5. The top and bottom of the section carry wheels which run along guide means 5, 6. A chain drive (12, Fig. 2, not shown) is fixed to the top of the window and extends around wheels (13, 14) at the top and bottom of means 5, lower wheel (14) being connected to a worm gear motor (15). Rubber seal (28, Fig. 7, not shown) or metal sealing lips (44, 45, Fig. 11, not shown) are provided. In Fig. 5 (not shown) drive is effected by a worm 17 and nut 18.
Patent GB-1083228-A (GB)
Title: Device for fastening an object to a wall
IPC: F16B13/08
Filed: 1965-08-13
Abstract: 1,083,228. Screw sockets. L. A. MORTENSEN. Aug. 13, 1965, No. 34834/65. Heading F2H. A screw socket for fastening members to a thin wall comprises a sleeve 10 having legs 14 to pivotally support an oblong nut 20 with a transverse bore 22. The sleeve, with the nut aligned therewith is passed through a hole in the wall and the nut is pivoted through 90 degrees at the back of the wall by means of the flexible elongated member 26 which is joined to the nut and passes through an axial hole 28 in the sleeve to the front of the wall. A screw 38 is then passed through the sleeve into the bore 22 to pull the nut hard against the back of the wall. The nut 20 and member 26 may be an integral plastic moulding.