baber/WOPTO huggingface dataset:
Patent GB-122954-A (GB)
Title: Improvements in Corve Retaining and Releasing Mechanism for Collieries and the like.
Inventor: WILDE WILLIAM
IPC: B66B1/48
Filed: 1918-03-13
Abstract: 122,954. Wilde, W., and Petrie, W. March 13, 1918. Axle stops.-Corve retaining stops, such as described in Specification 20245/07, have shallow depressions b<2> formed in the barrel connected with the star wheels in which weighted check pawls c engage so as to momentarily check the speed of rotation. The usual stops b<1> are interspersed at intervals as required between the depressions.
Patent GB-785108-A (GB)
Title: Manufacture of hexahydrobenzylamine
Filed: 1956-02-13
Abstract: Hexahydrobenzylamine is produced from tetrahydrobenzonitrile by catalytic hydrogenation in the presence of acetic anhydride, and subsequent hydrolysis of the acetylamino compound.  Preferably, the tetrahydrobenzonitrile is dissolved in a mixture of glacial acetic acid and acetic anhydride, and after adding a hydrogenation catalyst such as finely distributed nickel, cobalt, palladium or platinum, especially Raney nickel, the mixture is treated with hydrogen in a pressure resistant vessel, while stirring at temperatures between 40-100 DEG  C. and pressures between 20 and 300 atm.  After evaporating the solvent and excess acetic anhydride, the reaction product is hydrolysed by boiling with hydrochloric acid, and the amine isolated by treatment with alkali.
Patent GB-535287-A (GB)
Title: Rig for sailboats
IPC: B63H9/10
Filed: 1940-03-12
Abstract: 535,287. Rigging. BEAUDRY, P. March 12, 1940, No. 4622. [Class 115] In a rolling reefing gear for sailing vessels, the boom 23 is mounted in end members 20, 21a, and is supported by the capstan mounting 12 to which fore and aft stays 17, 18 carried by the end members 20, 21a are secured. At its forward end the boom is provided with a drum 26 around which the lift rope 42 is wound. The halyard 39 is attached to the block 40 over which the lift rope is trained.
Patent GB-248169-A (GB)
Title: Fitting for towel rails and the like
IPC: A47K10/04
Filed: 1925-02-20
Abstract: 248,169. Browett, T. Feb. 20, 1925. Garment racks and stands.-Towel rails &c. are provided with coils of resilient material having frictional surfaces for preventing towels from falling off the rails. Fig. 1 shows a coil consisting of a core 1 of steel &c. and an outer cover 2 of rubber &c. In a modification, the coil is formed of rubber reinforced with canvas &c. Fig. 2 shows another arrangement, in which the core consists of twisted wires. In this case, two coils are joined by a flexible connector 4 which forms a part of the sheathing of the coils. In a further modification, the coil consists of twisted wires holding stiff brisbles between them similar to the well known form of pipe cleaners.
Patent GB-801153-A (GB)
Title: Transportable lightweight loaders for lump materials
IPC: B65G65/00
Filed: 1956-02-15
Abstract: 801,153. Portable conveyer loaders. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Feb. 15, 1956 [Feb. 26, 1955], No. 4712/56. Class 78 (1). A portable conveyer loader mounted for fore-and-aft movement with respect to a pile of loose material 71 has a pair of rotatable toothed wheels 25, 26 mounted at its forward end which are driven in a direction 58 such as to burrow into the pile of material and move the overlying material backwards so that it falls on the conveyer. The conveyer is an endless scraper chain conveyer comprising a central chain 32 having lateral flights 33 the top edges 35 of which are bent forwardly. The chain 32 passes over an upper sprocket 24 driven by chain gearing 49, 50 from a motor 42 and a lower sprocket mounted on the toothed-wheel shaft 21. The motor 42 is slung beneath the conveyer frame by straps 44 which are hung on sleeves 43 mounted on pins 45 engaged in brackets on the frame. The pins 45 also hold in place a cover 46. The scraper chain runs in upper and lower troughs, the upper trough having flared sides 38 the top edges 36 of which are bent inwardly. The sides 38 are strengthened by gusset plates 29, 37, the latter having apertures for facilitating handling. The conveyer framework is slung by a pair of cables 52 from an overhead trolley 53 which runs on a longitudinal rail 54. Rail 54 is carried by suspension members 55, which preferably allow transverse movement of the rail 54, from supporting beams 56. In an alternative construction, Fig. 9, the conveyer framework is carried by a tricycle carriage comprising a longitudinal member extending between an axle for a pair of wheels 63 and a transverse rod 67 on which is mounted a castor wheel 70, and a yoke member 62 pivoted to the axle, slotted brackets 64, 65 on the conveyer framework engaging the yoke member and rod 67 respectively. Instead of a pair of toothed wheels a toothed drum may be used. The toothed wheels or drum may be carried on a shaft located in advance of the lower conveyer chain sprocket and be coupled with the latter by chain gearing.
Patent GB-1085175-A (GB)
Title: Photographic camera
IPC: G03B17/18
Filed: 1965-02-04
Abstract: 1,085,175. Photographic magazine cameras. AGFA A. G. Feb. 4, 1965 [Feb. 12, 1964], No. 4973/65. Heading G2A. In a photographic camera for use with a film cartridge, means are provided for locking the film advancing mechanism which means are released when a cartridge is inserted into the camera. When no cartridge is present, a feeler 8, which projects into the cartridge chamber 2, is in contact with a surface 7a. The feeler is connected with a control pin 12 against which a pivoted lever 15 is held by a compression spring 20, the control pin being spring-biased by a spring 13 stronger than the spring 20. A detent 17 on the other end of the lever 15 engages and holds fast a ratchet wheel 19 connected to a gear 26 for film transport and meshing with a gear 27 which carries a manual film advance lever 28. Thus the film transport device is locked. On insertion of a cartridge, the feeler 8 is moved in the direction a thereby moving the pin 12 to release the rear arm of the pawl lever 15 and to allow it to be moved into contact with a stop 21a by the spring 20. A second pawl lever 16 remains in contact with a stop 21. If the film inserted is of a sensitivity not settable on an exposure metering device associated with the camera, a control abutment (5) Fig. 2 (not shown) on the cartridge either does not move the feeler 8 or moves it so far that the pin 12 contacts the pawl lever 16 and causes a detent 18 to engage the ratchet wheel 19, so that in either case the film advance mechanism remains locked after insertion of the cartridge.
Patent GB-540567-A (GB)
Title: Improvements in or relating to projection screens
IPC: G03B21/62
Filed: 1940-03-18
Abstract: 540,567. Films. KODAK, Ltd. March 18, 1940, No. 5002. Convention date, March 18, 1939. Drawings to Specification. [Class 2 (ii)] [Also in Groups XX and VIII] A film for use as a translucent projection screen is made by forming a solution of an organic derivative of cellulose and a transparent material or synthetic resin incompatible therewith in a solvent or solvent mixture, so chosen as regards quantity and nature that on concentration by evaporation the cellulose derivative remains in solution but not the resin, casting the solution into sheet form and removing the solvent, whereby the resin is thrown out of solution in the form of small transparent particles and the cellulose derivative dries to form a continuous transparent phase. Cellulose organic acid derivatives such as cellulose acetate, propionate, butyrate, acetate-propionate and acetate-butyrate, and cellulose ethers such as ethyl and benzyl cellulose, may be used as the base material. Natural and synthetic resins which may be employed include coumarone-indene, polymerized methyl methacrylate, manila, rosin, sandarac, chlorinated rubber, the composition known under the Registered Trade Mark " Vinylite," and also "Nevillite " and " RH-35." The solvent may be a solution of ethylene chloride containing 3 to 15 per cent of methyl alcohol or acetone. In an example, the solution comprises 80 parts of cellulose acetate, 20 parts of Nevillite resin and 400 parts of a solvent consisting of 90 per cent. ethylene chloride and 10 per cent methyl alcohol. The solution is coated on a glass plate to form after evaporation of the solvent a sheet of 0.007 inches in thickness. A plasticizer may be added to the solution to form a flexible screen, and in an example, 15 parts of triphenyl phosphate are added to the solution above referred to. In other examples, the proportions of the constituents are varied and other resins are employed, and an example employing a natural resin is given in which a solution is formed of sandarac resin and cellulose acetate in acetone. The sheets may be formed on a roll-casting apparatus.
Patent GB-413599-A (GB)
Title: Esters of fatty-aromatic acids with amino-alcohols and process for obtaining the same
IPC: C07D295/088
Filed: 1934-02-15
Abstract: Fatty-aromatic esters of amino-alcohols are prepared by treating a compound of the formula <FORM:0413599/IV/1> in which R represents an alkyl or hydrogen, R<1>, R<2> and R<3> signifies alkyl (R<2> and R<3> together with the nitrogen atom may comprise a heterocyclic ring), and X stands for halogen, with a salt of a fatty-aromatic acid. Examples are given of the interaction of (1) 3-piperidino-2 : 2-dimethyl-propyl chloride and potassium tropate; (2) 3 - diethylamino - 2 : 2 - dimethyl - propyl chloride and potassium tropate, sodium d-tropate or potassium mandelate.  3 - Piperidino - 2 : 2 - dimethyl - propyl chloride is obtained by reducing a a -dimethyl-b -piperidino-propionaldehyde (see Specification 348,382) with sodium amalgam and treating the alcohol with thionyl chloride. Amino-alkyl halides of the formula given above are prepared by treating the amino-alcohols whose preparation is described in the parent Specification with halogenating agents such as thionyl chloride.
Patent GB-306151-A (GB)
Title: Improved electrolytic manufacture of iron
IPC: C25C1/06
Filed: 1929-02-15
Abstract: 306,151. Kelsen, E. Feb. 16, 1928, [Convention date]. Iron, obtaining.-The electrolyte consists of a solution of an iron salt to which is added two or more salts e.g. those of sodium, potassium calcium and magnesium, in quantity sufficient to raise the conductivity to a value exceeding that obtainable by the addition of one salt up to saturation. The added salts may have the same or different anions or cation. The concentration of the original iron solution is preferably somewhat below saturation. Suitable compositions are (1) ferrous chloride 122.5 gms., calcium chloride 109 gms., potassium chloride 100 gms., water 497 gms. (2) ferrous chloride 122.5 gms., calcium chloride 109 gms., potassium chloride 110 gms., water 525 gms. (3) ferrous chloride 122.55 gms., sodium chloride 80 gms., potassium chloride 80 gms., water 425 gms.; the conductivity of these baths at 90‹ C. is respectively 0.429, 0.440, 0.446.
Patent GB-1515097-A (GB)
Title: Metallurgical converter installation incorporating fume removal means
IPC: C21C5/40
Filed: 1977-02-08
Abstract: 1515097 Removing fumes from metallurgical converters AMERICAN AIR FILTER CO Inc 8 Feb 1977 [19 Feb 1976] 05164/77 Headings F4B and F4X In a fume extraction system for use with a tiltable metallurgical converter 2 and comprising an enclosure 16 provided with a fume hood 24 and exhaust duct 22 in its top wall 18 and a charging opening 28 in a side wall, a further fume hood 36 or 50 connected to an exhaust duet 37 or 62 is disposed above and outwardly spaced from the charging opening 28 to receive fumes emanating during each charging operation when the converter 2, is tilted to receive charge material from a ladle or bucket 6. When the charging operation is completed the converter is rotated to its normal vertical position within the enclosure 16 and the charging opening 28 closed by a pair of hingeably (see Figs. 2 and 3, not shown) or slidably mounted doors 51, 53. The fume collection hood 50 may include a pair of downwardly extending legs 52, 54 of U-shaped section at opposite sides of the opening 28, said legs communicating at their upper ends with exhaust conduits 56, 58.
Patent GB-1384263-A (GB)
Title: Aging resistant cold rolled sheet products
IPC: C22C38/00
Filed: 1972-02-03
Abstract: 1384263 Steel USS ENG and CONSULTANTS Inc 3 Feb 1972 [3 Feb 1971] 5181/72 Heading C7A Steel, for making thin sheet with enhanced ageing resistance, comprises:- C 0À01-0À08% Mn 0À2 -0À6% Si 0À03-0À08% acid soluble Al up to 0À015% normal impurity amounts of O and N, together with sufficient B up to 0À01% to give a B/N ratio of 1À4-2À5 for oxygen contents of over 150 p.p.m. and of 1-1À2 for oxygen contents less than 150 p.p.m, the balance being Fe. The cast alloy may be hot rolled (e.g. at 2100‹-2300‹F and with a finishing temperature above 1500‹F), coiling above 1100‹F (e.g. 1150‹-1250‹F) pickling, cold rolling and then annealing (e.g. at 1250‹-1275‹F).
Patent GB-1382198-A (GB)
Title: Air duct grills
IPC: F24F13/15
Filed: 1973-02-01
Abstract: 1382198 Ventilators G & B INDUSTRIES Ltd 1 Feb 1973 5196/73 Heading F4V  A grille assembly for insertion into the end of an air supply duct comprises a louvred plate 10, a first damper behind the plate 10 and having pivotally mounted slats 17 simultaneously operable by a lever 25 which projects through an opening in the plate 10, and a second damper behind the first damper and having pivotally mounted slats 42, the plate 10 and first and second dampers being rigidly interconnected for insertion as a unit into the duct.
Patent GB-803157-A (GB)
Title: Improvements in adjustable measuring device
IPC: G01F19/00
Filed: 1957-02-15
Abstract: 803,157. Measures of capacity. FOHRMAN, S. F. Feb. 15, 1957 [Feb. 17, 1956], No. 5261/57. Class 106(5) A measuring device for solids or liquids comprises an inner inverted cup member 11 telescoping within an open-ended outer sleeve 10 so as to form an adjustable measure in the portion of the sleeve above the top wall 12 of the cup member and the sleeve is made of a relatively hard transparent plastic such as a polystyrene or acrylic resin while the cup member is made of a more resilient plastic such as polyethylene. A good sealing engagement between the members is provided by a ridge 15 which, in the separated relation of the two members, has a diameter slightly greater than that of the sleeve. The sleeve has a slight interior and exterior taper to facilitate production by injection moulding and the cup member may have an exterior taper equal to or less than the interior taper of the sleeve. The top wall 12 of the cup member is slightly concave in order to increase its radial compressibility. Scale indications 17, 19 and reference marks may be applied to either or both members by hot stamping or silk screen printing. A continuous or interrupted ridge 22 or several vertical ridges 24 may be provided on the cup member to prevent it from tilting within the sleeve. Complete telescoping of the two parts serves to eject the measured material.
Patent GB-792851-A (GB)
Title: Apparatus for producing slide trays for slide-tray packets, cartons or the like
IPC: B31B50/00
Filed: 1956-02-21
Abstract: 792,851. Making cartons. KÍRBER, K. Feb. 21, 1956 [May 27, 1955], No. 5323/56. Class 18. A tray form carton is pressed up from a blank by two plungers, the first forcing the blank through a matrix to fold up the sides and ends, the second folding inwards parts extending from the ends, and having movable flaps for pressing these parts outwardly against the end walls. The blank in the form shown in Fig. 4 is fed from a pile 2 to beneath a plunger 4 which forces it through a matrix 3. Projections 20 on the matrix initiate folding of the gussets 21, and slots 29 permit the ends 30 of wall extensions 31 to pass through. Beneath the matrix, horizontal sliders 7 fold in the extensions 31 to lie in the plane of the carton mouth and the carton is transferred to beneath a plunger 17. The plunger 17 is lowered until it contacts the carton base, the extensions 31 being thereby pressed in. Thereafter, continued movement of its operating rod 39 against a spring 41 engaging a rod 40 secured to the plunger, permits bolts 36 to press on arms 37 attached to pivoted presser flaps 33. The flaps 33 are pivoted outwardly, pressing the extensions 31 against the carton ends and forcing the parts 30 into recesses 38 on the carton sides. As the rod 39 rises, springs 42 retract the flaps 33 and the plunger 17 is then withdrawn.
Patent GB-235266-A (GB)
Title: Improvements in or relating to pumps
IPC: F04D9/04
Filed: 1924-03-03
Abstract: 235,266. Worthington-Simpson, Ltd., and Churcher, W. R. M. March 3, 1924. Air pump embodied in driving gear ; combined with other types of pumps; priming.-An air, gas, or vapour pump d for priming a centrifugal or rotary liquid pump is embodied in the drive of the latter. In one form, the air pump d is enclosed in a chamber a<1> formed in the driving shaft a and is actuated by cams c on a shaft driven by bevel gearing b from the shaft a. When the pump d begins to pump liquid, a valve h on the delivery closes and the pump is locked and becomes a clutch in the drive. Instead of being locked when the liquid pump is primed, the pump d mav be allowed to work slowly by providing a small by-pass to the valve h. Several pumps d may be used and may be radially arranged and driven by a crank. A braking device may be arranged on the liquid pump spindle to prevent rotation thereof due to the friction of the air pump. The brake may be automatically relieved when the liquid pump is primed.
Patent GB-700676-A (GB)
Title: Web printing press
IPC: B41F23/04
Filed: 1950-03-06
Abstract: 700,676. Printing-machines. GOEBEL AKT.-GES. March 6, 1950 [March 5, 1949], No. 5646/50. Classes 100 (1) and 100 (2) Drying-apparatus.-In a multi-unit intaglio or gravure web printing press the printing units are in one or more upper parts of a casing enclosing the entire web run from its entry into the first printing unit up to completion of the final printing, and rollers guide the web downwards after each printing into one or more drying chambers arranged in the lower part of the casing below the printing units. As shown, a separate drying chamber is arranged below each printing unit; the web 5, after passing brushes 15, enters the first drying chamber through a slot in its righthand wall, Fig. 1, passes upwards from a roller 16 through a slot in a horizontal wall 17, over rollers 18, 19, downwards through the printing couple 20, 21, and returns through another slot in the wall 17 to the drying chamber where it is guided past slotted air nozzles 22, Fig. 2, by rollers 23, 24, 25 and guide plates 27, 28 contacting its unprinted side, is then doubled back at roller 26, and finally passes over a roller 29, through a slot in the dividing wall, to the next drying chamber and printing unit in which it follows a similar path. Fumes are led to a solvent recovery plant from the drying chambers through connections located at the same level as the air supply pipe 56. Rotary machines; impression adjustments inking apparatus.-Each unit comprises an intaglio cylinder 20, Fig. 2, carried in journals 36 locked in vertical guides in the side frames, and an impression cylinder 21 carried in horizontally slidable end bearings and pressed against the cylinder 20 either by a system of levers or by a further cylinder 43 whose horizontally slidable end bearings are adjusted by a handwheel 44. The hinged hood 45 may be transparent, and instead of platforms 47, Fig. 1, being provided for access to the printing units with the side frames 7 and the drying chambers above floor level, the latter may penetrate the floor to the storey below. The inking duct 38, Fig. 2, is mounted on two spindles vertically adjustable by gears 41 turned by a handwheel ; the doctor blade 39 is axially oscillated by a lever connected to an eccentric geared to the main driving shaft; the horizontal wall 17 may be curved upwards along the web exit slot as shown to collect excess ink. Feeding webs.-A web supply roll 6, Fig. 1, has a brake disc 8 engaged by a band 9 spring- loaded at 10 and connected to a caliper arm 12 whose roller 13 bears on the roll periphery. The wind-up roll 33 rests on rollers 35 and its shaft is carried in vertically slidable bearings 34.
Patent GB-275504-A (GB)
Title: Improvements relating to portable tool holders
IPC: F16F15/08
Filed: 1927-03-01
Abstract: 275,504. Fletcher, R. W. J. March 1, 1927. Driving machines.-A holder adapted for driving tools such as drills, bits, rotary cutters, grinding and polishing wheels, &c., comprises a shaft 1 driven from a flexible shaft and carrying a clutch element 2 which is centred by the extension 3 in a driven clutch element 4 connected to the tool chuck 7 and mounted in ball-bearings 8. A spring 9 acting through a ball 11 normally tends to press the driving shaft upwards to disengage the clutch. A block 6 moving with the shaft 1 is engaged by the arm 14 of a pivoted lever 12 which has a spring extension carrying a brake shoe 16. When the operator holds the lever 12 against the body of the holder, as shown, the clutch parts are forced into engagement against the spring pressure and the block 16 is raised, while when the lever is released the clutch is automatically disengaged and the brake applied. Specification 244,218 is referred to.
Patent GB-1417942-A (GB)
Title: Electrical switches
IPC: H01H3/10
Filed: 1974-02-07
Abstract: 1417942 Switch actuation; covers SIEMENS AG 7 Feb 1974 [7 Feb 1973] 05746/74 Heading H1N In an electric switch having an openable cover 1, Fig. 1, in which a rotatable actuating member 5 extends through the cover 1 for engagement by a turnable actuator handle 6 and having a coupling 4 engageable with a coupling 7, on the switch operating shaft 9 when the cover is closed, the coupling 4 carries spring catches 15 which slide over and engage behind the coupling 7 to prevent the cover 1 being opened when the switch handle is in one position but permitting the cover 1 to be closed in any position of the switch. The coupling 7 is slidable on the end of the switch actuating shaft 9 against the action of a spring 11 to permit the coupling 7 to yield if the couplings 4, 7 are not in alignment when initially engaged. The dog-teeth of the coupling may have slanting sides whereby the parts are relatively rotated if the dog-teeth are not in alignment. A ring 10 with grub screws 12 engaged through slots 13 adjustably supports the coupling 7 on the shaft 9. The coupling 4 may have recesses (27) Fig. 6 (not shown) on its periphery engaged by a spring loaded detent plunger (28) Fig. 2 (not shown) to locate the various switch positions. A microswitch (23) Fig. 2 (not shown) may also engage the periphery of the coupling 4 to provide a signal for indicating the position of the switch.
Patent GB-268525-A (GB)
Title: Improvements relating to turbine and like pumps
IPC: F04D29/10
Filed: 1926-03-02
Abstract: 268,525. Mather & Platt, Ltd., and Pennington, R. March 2, 1926. Leakage-preventing devices.- To prevent ingress of air through the bearings of a centrifugal pump, liquid under the delivery pressure surrounds the inner ends of the bearings. For this purpose, an annular chamber c is formed in the casing and is open to the vortex chamber d. The wall e protects the liquid from the rotor and ribs h in the chamber prevent any rotation of the liquid. In a construction with an inlet eye and a bearing on each side the arrangement of chambers is duplicated.