baber/WOPTO huggingface dataset:
Patent GB-248350-A (GB)
Title: Improvements in or relating to spindle releasing devices for drilling machines
IPC: B23Q11/04
Filed: 1926-02-12
Abstract: 248,350. Sauveur, H. Feb. 28, 1925, [Convention date]. Drilling; yielding- drive attachments.- In a driving device for a drilling-machine of the kind in which, upon the permissible cutting torque being exceeded, further rotation of the drill is prevented and the drill is also free to move axially, this axial movement is utilized to close an electric circuit so as to stop the feed of the drill or to stop the complete machine. The, closing of the circuit may also operate a signal, either optical or audible or both. A yielding-drive chuck a has a recess g which permits axial movement of the drill under excess load so as to bring a projection h into electrical contact with a plug i insulated frcm the chuck and connected to a ring l, also insulated. The ring engages a peripheral groove in a disc n, rotatably and slidably mounted on a rod p which carries one lead m of the automatic stop circuit, the other lead f being connected to the chuck body through the spindle-guide d. The rod p is insulated at u, and a contact-spring q may be provided on the disc.
Patent GB-955895-A (GB)
Title: Improvements in locks
IPC: E05B65/52
Filed: 1962-02-02
Abstract: 955,895. Latches. E. SPEGELSTEIN. Jan. 15, 1963 [Feb. 2, 1962], No. 4117/62. Heading E2A. Relates to hasp locks in which a retractable bolt 3 for engaging on hasp, is retained between a cupped front plate 1 and a contained back plate 2 and is movable into and out of a slot 5 through both plates of a size to receive the hasp. According to the invention, the back plate 2 is provided with one or more lugs 7, 8 extending from the back plate 2 away from the front plate 1 on one or one on each side of the   slot, the lug or one at least of these lugs extending to substantially the level of the cupped edges of the front plate 1.
Patent GB-621264-A (GB)
Title: Improvements in fastening devices for stair carpets
IPC: A47G27/06
Filed: 1947-02-13
Abstract: 621,264. Stair rods and fastenings therefor. JOHNSON, F. D. Feb. 13, 1947, No. 4134. Addition to 581,822. [Class 52 (v)] The stair-carpet fastening described in the parent Specification is modified so that the carpet gripping arm is omitted and its open slotted end forming a clamping plate, which co-operates with the pair of brackets 3 fixed to the stair case, is adapted to engage a stair rod extending between the brackets 3. The clamping plate 9 provided with an open slot 12 with which engages the clamping screw 8 of the pair of brackets 3 has flanges 13 which embrace the side edges of the upper branch of the bracket 3 and the seamed edges of a concave stair rod 1 and also has flanges 15 to embrace the end edge of the bracket 3. The clamping plate 9 may have a depressed portion 16 to engage and lie in the concave part of the stair rod or it may be left flat and its edge 17 provided with a tongue which enters the concave part of the stair rod to exclude dust &c.
Patent GB-1125574-A (GB)
Title: Improvements in hydraulic gear pumps and motors
Inventor: GELIN ROBERT JEAN JOSEPH
IPC: F01C1/18
Filed: 1966-01-31
Abstract: 1,125,574. Hydraulic gear pumps and motors. SOC. INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE. Jan.31, 1966 [Feb. 16, 1965], No.4218/66. Heading F1F. A hydraulic gear pump or motor comprising intermeshing gears 4, 5, Fig. 1, carried, at least on one side, both are shown, by rigid bearings movable in an axial direction which are subjected to thrust to urge them towards the gears includes abutment means limiting the movement of the bearings such that there is minimum play or clearance between the side faces of the gears and the adjacent side faces of the bearings. As shown, the pump body 1 closed at its ends by plates 2, 2a is provided in the region of the working chamber, with an inwardly directed abutment forming shoulders 26, 26a against which the rigid bearings 15, 16, 15a, 16a are urged by hydraulic pressure, discharge pressure in the case of a pump, supply pressure in the case of a motor, admitted to cylinders 19, 20, 19a, 20a sealed by rings 21, 22, 23, 21a, 22a, 23a. The body 1 on either side of the abutment is formed with an increased diameter portion 28 which forms cavities communicating with the low pressure side of the pump or motor and also reduces the contacting areas between the bearing peripheries and the body to prevent tilting of the bearings. Each bearing is acted on by a resultant hydraulic thrust F 1 , Fig. 6, a hydraulic balancing force F 2 , roller bearing load F 3  and reaction F 4  on the body which together produce balancing couples on the bearing. The bearings 15, 16 on one side and 15a, 16a on the other side instead of being separate may be made in one. Inlet port 10, Fig. 2 (not shown) is made wider than the width of the gears to get a good filling and the outlet port 11 narrower to improve sealing between the bearings and the body around the outlet port. The shoulders 26, 26a preferably are omitted in the region of the inlet port 10 where the pressure is lower. The play or clearance which is reduced to a minimum reduces wear and prevents scoring by any foreign matter. Instead of the bearings being urged by hydraulic pressure against the shoulders, springs could be substituted.
Patent GB-138915-A (GB)
Title: Improvements in or relating to the treatment of rubber
IPC: B29B13/06
Filed: 1920-02-11
Abstract: 138,915. Hunter Dry Kiln Co., (Assignees of Hunter, H.). Sept. 25, 1915, [Convention date]. India-rubber, preparation of.-Indiarubber, natural or reclaimed, is treated, especially for the removal of moisture, by exposing it to the action of humid air at a temperature exceeding 110‹ F. Rubber, in trays 40, Fig. 1, mounted on trucks 42 is exposed to a current of moist air in a chamber 16. The air enters by an inlet 11, passes steam pipes 12, and is conducted by channels 15, 17 over the surface of water in a trough 25 into the chamber 16. The level of the water in this trough is maintained constant by a float valve 28, Fig. 2, and the temperature, by admitting steam through a pipe 26 having a valve 31 operated bv the contraction and expansion of liquid in a vessel 35 immersed in the water. The air is maintained at a relative humidity of 20-70 per cent, and at a temperature between 110‹ F. and 170‹ F.
Patent GB-657374-A (GB)
Title: Lumazines and alloxazines as catalysts in dye bleach baths for color photography
IPC: G03C7/28
Filed: 1949-02-16
Abstract: 657,374. Coloured photographic images. GENERAL ANILINE & FILM CORPORATION. Feb. 16, 1949, No. 4278. Convention date, March 27, 1948. [Class 98 (ii)] A coloured photographic image is produced in a photographic layer containing a developed silver image and a bleachable azo dye by selectively bleaching the dye in a bath containing a dye-destroying agent and, as an accelerating agent, a small quantity of a compound of one of the general formulµ wherein R and R 1  represent H or an alkyl or aryl group, R 2  and R 3  represent H or a methyl group, R 2  always being H when R 3  is methyl and vice versa, and Z represents the atoms necessary to complete an aromatic or heterocyclic ring or a polycyclic derivative thereof. Compounds specified include alloxazine, 7- (or 8-) - methylalloxazine, 7 : 8 : 9 - trimethylalloxazine, 7: 8 - tetramethylenealloxazine, 6: 7- (or 8: 9-)-benzoalloxazine, azaalloxazine, 7- aminoalloxazine, 7- (or 8-) sulphanilamidoalloxazine, lumazine, 6:7-dimethyl-lumazine, phenanthrolumazine, and 6:7 - diphenyllumazine. The dye destroying agent may be hydrochloric, hydrobromic, hydriodic, or phosphoric acid with or without an alkali or ammonium halide, e.g. sodium or potassium bromide or iodide, or sodium or ammonium chloride. In example (1), multilayer material is prepared from a gelatino silver iodobromide emulsion containing saponin and diphenyl biguanide hydrochloride, Direct Sky Blue being added to the red-sensitized emulsion, Fast Acid Magenta being added to the green-sensitized emulsion, and Dianil Yellow 2R and additional diphenyl biguanide hydrochloride being added to the non- colour - sensitized emulsion, and a yellow colloidal silver filter layer is provided between the green- and non-colour-sensitized emulsions. The support is cellulose acetate film or barytacoated paper. The exposed material is developed in a black-and-white developer, treated in an aqueous sodium acetate-acetic acid stop bath, fixed in a bath containing hypo, sodium sulphite, acetic acid, and potassium alum, and strips are bleached in baths containing (a) hydrochloric acid; (b) hydrochloric acid and riboflavin; (c) hydrochloric acid and potassium bromide; and (d) hydrochloric acid, potassium bromide, and alloxazine. In example (2), the procedure is similar, using lumazine. In example 3, an exposed and developed silver halide emulsion containing Diamine Pure Blue FF is treated in a dye destruction bath containing, hydrobromic acid and 7: 8-dimethyl alloxazine. Specification 651,124 is referred to. The Specification as open to inspection under Sect. 91 refers also to the use as an accelerating agent of 7- (or 8-) methyltetrahydroalloxazine. This subject-matter does not appear in the Specification as accepted.
Patent GB-557778-A (GB)
Title: Improvements in the production of granules of plastic materials
IPC: B26D1/38
Filed: 1942-04-01
Abstract: 557,778. Cutting sheets of thermoplastic materials into cubes, granules &c. CELLULOID CORPORATION. April 1, 1942, No. 4326. Convention date, May 8, 1941. [Class 59] [Also in Groups V, IV and VIII] A heat-softened sheet of thermoplastic material is cut into ribbons, the ribbons are cooled until they are no longer soft, and the ribbons are cut transversely into cubes, granules. &c. Two examples are given:-(1) (Figs. 1 and 2). Stock 6 passing from heated malaxating. rolls 4, 5 in the form of a sheet 7 is cut into ribbons by pivoted disc cutters 8, and the ribbons are wound on a drum 15. A liner 16 is wound with the ribbons. The liner may be a thin metal band or a fabric coated or impregnated with " Bakelite (Registered Trade Mark) resin. The wheel 15 may be fastened to the floor, as shown, or mounted on rollers. The ribbons are allowed to cool on the wheel and then passed through driven feed rollers 23 to a rotary cutter 24 having transverse cutting edges 25, the liner being rewound at 17. (2) The sheet of ribbons is passed directly from the cutters 8 to the cutter 24, being cooled during its passage by blasts of cold air. The cutting into ribbons may be effected by a grooved or serrated roll pressing against a smooth or similarly grooved surface. The thermoplastic material may be a cellulose derivative or a synthetic resin. The Specification as open to inspection under Sect. 91 states also that the second cutting operation may be omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-113862-A (GB)
Title: Improved Turret Head or Multiple Tool Holder for Drilling and Tapping Machines and the like.
Inventor: MAIN WILLIAM PATERSON
IPC: B23B39/20
Filed: 1917-03-26
Abstract: 113,862. Main, W. P. March 26, 1917. Drilling-machines.-In tool turret 13 for drilling, tapping, and like machines, the toolholders 25 are adapted to be clutched automatica.lly to the driving means as they arrive at the working position. The holders 25 are pressed inwards by springs 34, but the clutch teeth 30 are kept out of engagement, except when a holder is in its lowest position, by a fixed cam 15 which acts on the forks 31. The gears 29 are kept in engagement with the driving gear 20 by springs 35 and the turret is locked by a spring pin 46.
Patent GB-693358-A (GB)
Title: Improvements in or connected with machines or apparatus for heating and planing-off worn road or other surfaces
Inventor: DRYSDALE HARRY PATERSON
IPC: E01C23/14
Filed: 1950-02-21
Abstract: 693,358. Planing-off roads. ROBEY & CO., Ltd., and TILBURY CONTRACTING & DREDGING CO., Ltd. May 18, 1951 [Feb. 21, 1950], No. 4390/50. Class 107. A wheeled machine for heating and scarifying road and other surfaces of thermoplastic material is provided at the front of the steering wheels with an extension. spaced apart heating means mounted on the machine and the extension ,a drawbar rotatably mounted on the front end of the extension and means connecting the drawbar post with the steering post of the steering wheels so that the steering wheels are steered by the drawbar post. The gap between the heaters allows for the escape of volatile constituents and the greater penetration of the heat. The heaters have hoods 5, 11 spaced about the front wheels 2 steered by the drawbar 17 by means of a sprocket and chain connection. The scarifiers (not shown) are arranged at the back of the vehicle and may be as disclosed in Specification 627,735. The heater hoods are adjustable vertically' by links 7, 12 and are also adjustable transversely of the chassis. A towing vehicle, Fig. 3, may be used and has a structure 38 carrying a travelling frame, Fig. 5, with rollers 42 and rack wheels 45 engaging the rack 40 for movement by the I.C. engine 47 which can also operate cables 50, 51 from which depend a frame 56, Fig. 7. The latter carries one or more heaters and is adapted to act as a towing and steering link between the towing vehicle and the scarifier. If desired the towing vehicle and the frame 56 can be used as a heater without the scarifying unit shown in Fig. 1.
Patent GB-1164973-A (GB)
Title: Lamp Socket.
IPC: H01R33/46
Filed: 1968-01-29
Abstract: 1,164,973. Lampholders. UNITED-CARR Inc. 29 Jan., 1968 [21 Feb., 1967] No. 4437/68. Heading H2E. A lampholder 10 comprises an insulating element 14 disposed in a copper shell 12 and carrying blade terminals 16 and a polarizing pin 18. The insulating element 14 is of organic polymeric material and has plane walls 20, 22, arcuate walls 24 and upper and lower surfaces 28, 26 through which extend apertures A and B, containing slots 30A, 30B respectively. Arcuate flanges 32, 38 extend, adjacent surface 26 from the side walls 20, 22 respectively, the flange 38 abutting an arcuate guide portion 34 which has a bore 36. The copper shell 12 comprises a tubular body 68 with one end connected by a flange 72 to a tubular extension 70 and the other end having two opposed radially extending segments (74, 76, Fig. 11, not shown). Each terminal 16 comprises a rectangular blade portion 50 having a tang 62 and a dimple 60 on one edge, similar members extending in opposite directions on the other edge (in another embodiment, both dimples extend in one direction and both tangs in the opposite direction), and an integral narrower U-shaped spring portion 52 having a dimple 66 and a resilient end 64 which engage an eyelet 84 located against a shoulder 48 in each aperture A, B, a spring 86 around the eyelet 84 being depressed on inserting a lamp (not shown). The tangs 62 locate shoulders 44 in the grooves 30A, 30B which are orientated so that the terminals 16 are mutually perpendicular. The pin 18, e.g. of brass, has a wider portion having a U-shaped extension (not shown) which engages the flange 38 of the element 14, and preferably a longitudinal slot which is closed when the pin is inserted into the bore 36, a narrower portion of the pin extending from the element 14. The element 14 is inserted, terminals first, into the shell 12, the guide portion 34 passing through a groove in the radial segment (76) of the shell 12, so that the flanges 32 and 38 abut the radial segments (74 and 76 respectively). Portions of the shell 12 are swaged to abut the flange 38 and the U-shaped extension of the pin 18.
Patent GB-643972-A (GB)
Title: Circular two-railed track-system
IPC: A63G7/00
Filed: 1946-02-13
Abstract: 643,972. Elevated railways. JOIN, J. F. Feb. 13, 1946, No. 4470. Convention date, July 24, 1942. [Class 104 (ii)] [Also in Group XV] A circular track system with cars moving in one direction on the track, but adapted to be diverted to an upper track extending for nearly the full circle, has the entry and leaving points for the upper track respectively set manually and automatically by the weight of the cars. The arrangement described is an amusement device with cars supported by radial arms 25, Fig. 3, from a centre point and having wheels moving on a single-rail track (lower track 1 or upper track 2). The entry points rail 5, Fig. 4, is hinged at 3 to the upper track 2 and has a slipper 14 engaging a groove 15 to the lower track 1. A link 7 connects the point to a counter-weighted lever 11 pivoted at 12 and operated by a control rod 16. The exit points rail 6, Fig. 7, is hinged at 4 to the upper track 2 and has a slipper 26 engaging a groove 19 in the lower track 1. The exit points rail 6 is connected by a linkage with counter-weight 23 to a treadle 6<1> hinged at 41 to track 2 and engaged by the wheels of the cars, so that the point is closed automatically and held in position until the cars have left track 2.
Patent GB-511023-A (GB)
Title: Improvements in, and connected with, ornaments
IPC: A44B15/00
Filed: 1939-02-11
Abstract: 511,023. Labels. FORSTNER CHAIN CORPORATION. Feb. 11, 1939, No. 4526. Convention date, Feb. 21, 1938. [Class 73] An ornamental identification device, for use with key chains &c. comprises a base in which ornamental letters &c. are slidably received, and a cover which encloses the base and holds the letters &c. in position. The metal base 26, Fig. 6. is provided with flanges 27 for engagement with grooves 32, Fig. 7, in letters &c. 31, and the cover comprises a pair of leather pieces 20, 21 Fig. 4, sewn along the side edges, the upper layer being provided with an opening 25 which, when the cover is in position, holds the letters in place. The smaller end of the cover is closed by a pronged member 33, Fig. 5, which is slipped over the end 29 of the base member and bent to clamp it in place. In a modification, the cover is made of a metal &c. flanged stamping snapped into position.
Patent GB-197071-A (GB)
Title: Improvements in or relating to gas water-heaters
IPC: F24H9/20
Filed: 1922-02-16
Abstract: 197,071. Goad, G. A., and Proctor, W. F. Feb. 16, 1922. Fluid-actuated valves.-At the top of a gasheated boiler 1 is mounted a cylinder 7 open at the bottom to the steam space and fitted with a grooved piston 9 adapted to control the passage across the piston of gas from the supply pipe to the pipe 15 leading to the burner. The piston is returned either by a spring or compressed air in the space 19. At abnormal pressures of steam a port 20 in the wall of the cylinder 7 allows steam to escape.
Patent GB-1035341-A (GB)
Title: Improvements in or relating to tyres
IPC: B60C17/00
Filed: 1963-02-05
Abstract: 1,035,341. Pneumatic tyres. N. P. S. STRAUSSLER. Feb. 3, 1964 [Feb. 5, 1963], No. 4601/63. Heading B7C. A pneumatic tyre, comprising a carcass 2 including beads 1, and a tread portion 5, is characterized by a substantially cylindrical metal reinforcement 6 embedded in the tread rubber, said reinforcement being formed by a plurality of coaxial rings or at least one helically coiled spring and having sufficient mechanical resistance, in combination with the carcass, to support the normal load exerted on the inflated tyre when the tyre is punctured. The beads 1 of the tyre are gripped between axially outer flanges 3 of a rim 7 and a flanged spacing ring 4.
Patent GB-281141-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M3/08
Filed: 1927-02-18
Abstract: 281,141. Spiller, H. W. Feb. 18, 1927. Addition to 272,604. Spray carburettors. - The parent Specification describes a carburettor in which fuel is supplied to the main and slow-running nozzles through diffusers which may be removed without allowing fuel to escape. the diffusers being fed with fuel from the float chamber through a common supply pipe. According to the invention, fuel is supplied from the float chamber to the diffusers through separate conduits. Fuel from the float chamber 10 is supplied through separate conduits 57, 58 to diffusers 55. 56 detachably mounted in chambers 53, 54. Each diffuser is provided with air inlets 62, a calibrated fuel orifice 32. and rich mixture outlet orifices 34. The rich mixture from the chambers 53, 54 passes respectively through a conduit 65 to the main nozzles 63, and through a conduit 36 to the slow-running nozzles 38, which is controlled by a needle valve. Air may be supplied to the interior of the main nozzle 63 below the outlet orifices 64 through a tube passing through the wall of the mixing-chamber and through the closed top of the nozzle. The fuel conduits 57, 58 are formed in an extension 12 of the float chamber 10, which is secured to the body of the carburettor by a bolt 50. By removing a closure plug 69, access may be had to the main nozzle 63 which detachably secures the choke tube 16 in position.
Patent GB-986631-A (GB)
Title: Improvements in the manufacture of lead azotetrazole
Inventor: TAYLOR GEORGE WILLIAM CHARLES
IPC: C09B45/48
Filed: 1960-02-10
Abstract: A basic lead azotetrazole of formula C2N10Pb.Pb(OH)2 of high bulk density is prepared by gradually reacting together, over a period of more than ten minutes, at above 65 DEG  C., aqueous solutions of a soluble lead salt and of the disodium salt of azotetrazole in the presence of ammonium hydroxide.  Specification 195,344 is referred to.
Patent GB-745381-A (GB)
Title: Improvements in or relating to the polymerization of vinyl acetate
IPC: C08F18/08
Filed: 1953-02-20
Abstract: Vinyl acetate is polymerized in bulk or solution, e.g. in methyl alcohol, using as catalyst a composition containing benzoyl peroxide, an amine, a sulphinic acid and up to 1/20 mol. of an inorganic iron salt to 1 mol. of benzoyl peroxide.  Catalyst components specified are ferrous chloride; benzene, p-toluene and p-chlorobenzene sulphinic acids; dimethylaniline, diphenylamine, carbazole, N,N1-diphenylbenzidine, p - phenylenediamine, a  - naphthylamine and ethylene diamine.  The polyvinyl acetate obtained is of straight chain-molecular form and is suitable for saponification to polyvinyl alcohol.
Patent GB-234189-A (GB)
Title: Improvements in and relating to pistons of internal combustion engines
IPC: B23P15/10
Filed: 1924-02-25
Abstract: 234,189. E. L-S. Engines, Ltd., Spina, E. Lanzerotti-, and Thomson, H. J. Feb. 25, 1924. Pistons.-A light alloy piston is made by machining out a solid forging. An undercut recess 5 is turned on the exterior, leaving a neck 4 between the crown and the skirt. The interior is formed by turning, the material between the gudgeon-pin bosses being milled out.
Patent GB-125694-A (GB)
Title: Improvements in Tobacco Stemming Machines.
IPC: A24B5/06
Filed: 1918-03-19
Abstract: 125,694. Marks, E. C. R., (Standard Tobacco Stemmer Co.). March 19, 1918. Tobacco. - Relates to machines for stripping leaves from butts and stems, and consists in (1) feeding rollers for separating the butts and passing them successively to gripping-rolls, and (2) rotary cylinders with radial stripping-blades which are projected and retracted through slots in the cylinders by stationary cams. The leaves are placed on an endless feed band 15 with the butts bearing against a side plate 36, and the butts are separated and fed by two inclined disks 38, 39 to gripping-rollers 57, 58 which are formed with conical ends, screws, and helical gripping-ribs, are pressed together by springs 61 adjustable by screws 62, and are driven rapidly by gearing 63, 64 so as to draw the leaf stems through the stripping blades 67, 70. The upper disk 38 is driven by worm, chain, and bevel gearing and is pressed down by a screw 55 and a spring in the casing 56. The lower disk 39 is on an idle shaft and retards the lower leaves while the upper leaves are fed forward. The outer ends of the stripper blades 67, 70 project through radial slots in the cylinders 65, 66, and the inner ends engage with stationary cam races 68, 71.
Patent GB-104770-A (GB)
Title: Improvements in Sparking Plugs for use on Internal Combustion Engines.
Inventor: CREASEY JOHN JAMES
IPC: H01T13/24
Filed: 1916-04-03
Abstract: 104,770. Creasey, J. J. April 3, 1916. Drawings to Specification. Sparking-plugs.-The high-tension terminal of disk, star, or other shape is both slidable and rotatable on the central electrode.