baber/WOPTO huggingface dataset:
Patent GB-681989-A (GB)
Title: Improvements in or relating to writing and like tablets
IPC: B43L1/12
Filed: 1949-01-21
Abstract: 681,989. Writing tablets. GARDNER, H. M. April 19, 1950. [Jan. 21, 1949] No. 1710/49. Class 146 (ii). In a renewable writing tablet comprising a transparent plastic sheet 18 overlying a transparent or semi-transparent paper sheet 17 laid on a waxed sheet 16, the waxed and paper sheets are carried on a back plate 14 so as to form a unit therewith, and a frame 10 has channelled edges 11 between which the unit and the sheet 18 can be freely slidden, and writing on the tablet can be obliterated by separating the paper and waxed sheets by means of a movable strip 19 extending there between, the top and bottom edges 19<SP>1</SP>, 19<SP>2</SP> of the strip 19 being turned over to slidably engage the top and bottom edges of the back plate 14. The edges 11 of the frame 10 are closed at one end bv turned up extensions 12. The sheets 16, 17 are retained by pips (not shown) pressed along one or both sides 15 of the plate 14. An apertured extension 10<SP>1</SP> enables the device to be used as a tie-on label. The sheet 18 may be a cellulose acetate film.
Patent GB-753671-A (GB)
Title: Improvements in or relating to the manufacture of urea
IPC: C01B32/50
Filed: 1954-01-20
Abstract: In a process for the synthesis of urea from carbon dioxide and ammonia at least part of one or both of these reactants, prior to being introduced into the autoclave in which they are treated to produce urea, is obtained from a solution thereof, which is treated with a non-volatile chemical reducing agent to remove free oxygen before or during the extraction from the solution of the said reactant or reactants.  The reducing agent may be added to the solution of reactants or, alternatively, said solution may be passed over a solid reducing agent.  Specified reducing agents are pyrogallol, alkali hydrosulphites, ferrous, manganous, cuprous and titanous salts or hydroxides, and metals such as copper, iron and zinc.  The process may be applied to the deoxygenation of (1) carbon dioxide extracted from flue gas by absorption in alkali carbonate or ethanolamine solution; (2) carbon dioxide obtained by conversion of water-gas, followed by absorption in water under pressure; and (3) recycled carbon dioxide and ammonia dissolved in water or introduced into an inert oil to form a suspension of ammonium carbamate.
Patent GB-646221-A (GB)
Title: Staple remover
IPC: B25C11/02
Filed: 1948-01-20
Abstract: 646,221. Staple extractor. YERKES, J. A. Jan. 20, 1948, No. 1742. Convention date, June 12, 1945. [Class 61(iii)] A hand tool for removing' staples from papers and the like has a pair of jaws which, upon gripping of the tool, are caused to engage under the bridge of a staple, and on further pressure on the tool, one jaw lifts the staple, the other remaining in engagement with the paper. A rocker arm 1 and housing 15 which carry, respectively the lifting jaw 2 and anvil jaw 3 are connected together by a link 12 which is pivoted at 13 to the rocker arm and at 14 to the housing. In the inoperative position, Fig. 2, the link rests against an abutment pin 32 secured to the housing 15. A pin 33 on the arm 8 of the member 1 is guided in an arcuate slot 34 in the housing. The jaw 3 is shaped to form a pair of prongs 24 between which the bevelled angle jaw 2 engages under the bridge 38 of a staple, a member 6 being provided on the latter jaw for retaining the staple during withdrawal. To engage the jaws under the staple, the member 1 is depressed and this depresses the upper part 30 of a spring secured to the link at 29. The link 12 remains stationary, the jaw 2 moves clockwise under the staple, the pin 35 on the rocker arm 1 abuts the link 12 and the pin 33 on the arm 8 of the rocker arm moves forwards in the slot 34 in the housing. On continued pressure, the lower part 31 of the spring yields, the member 1 and link 12 pivot together on the pin 14 and the lifting jaw 2 is raised, pulling up the bridge of the staple with it. The tool may be operated in the hand or placed on a table. The Specification as open to inspection under Sect. 91 states that the jaws may be suitably shaped for pulling tacks and the like. This subject-matter does not appear in the Specification as accepted.
Patent GB-377567-A (GB)
Title: Improvements in or relating to roll film holders for photographic cameras
IPC: G03B17/30
Filed: 1932-01-20
Abstract: 377,567. Photographic cameras. KODAK, Ltd., Kingsway, London.-(Assignees of Wittel, O.; 343, State Street, Rochester, New York, U.S.A.) Jan. 20, 1932, No. 1746. Convention date, Jan. 21, 1931. [Class 98 (i).] A roll film holder is provided with guide means whereby the roll material is curved transversely as it is fed to the take-up spool whereby the edges do not contact with the spool flanges until the material reaches its final position on the spool. The holder may comprise a frame associated with integral or separate guide surfaces arranged to bear against the edge of the backing strip ; where the backing strip is of the type having skived edges and a width greater than the distance between the spool flanges, the guide surfaces may be spaced apart a distance equal to or less than the distance between the spool flanges. Fig. 1 shows a box camera in which the film material passes from a supply spool 8, supported between studs 14 on fingers 13, between upper guide surfaces 15, around rollers 9, and between lower guide surfaces 16 to the take-up spool 10. The upper guide surfaces 15 are spaced apart a distance not less than the distance between the spool flanges to guide the material in flat form. The lower guide surfaces 16 are spaced apart a distance less than the width of the strip 7 and equal to or less than that between the spool flanges and are shouldered at 17 to engage the spool flanges 12 and maintain the spool with its axis perpendicular to the side walls 4. A spring tensioning device 18 maintains the flanges in contact with the shoulders 17. Fig. 3 illustrates the curving of the strip as it is fed to the spool 10. A modification is described in which the guides are formed on a separate plate which is also provided with tensioning springs.
Patent GB-504142-A (GB)
Title: Improvements in gas fired shaft furnaces for ore roasting
IPC: F27B1/08
Filed: 1938-01-19
Abstract: 504,142. Shaft furnaces. ROCHLING' SCHE EISEN UND STAHLWERKE GES. Jan. 19, 1938, No. 1760. Convention date, Jan. 19, 1937. [Class 51 (ii)] A shaft furnace for roasting ores is fired by gas led into the combustion zone through a plurality of vertical pipes F,' air being supplied through pipes G<1>, G<2> and a saddle C. If the charge is to be reduced, gas may be supplied through pipes B<1>, B<2> and air through the pipes G and F. D is a movable discharge table. Reference has been directed by the Comptroller to Specifications 2917 /00, [Class 51], 2917A /00, 2917B/00, [both in Class 50], 6924/00, and 23044A/00, [both in Class 51].
Patent GB-546433-A (GB)
Title: Improvements in or relating to snow ploughs
IPC: E01H5/06
Filed: 1941-02-10
Abstract: 546,433. Snow ploughs. BUNCE, W. J. Feb. 10, 1941, No. 1771. [Class 107] The blade b is mounted on a swivel bolt f on a frame d attached to the chassis of a vehicle so that it may be adjusted to sweep the snow either to the left or to the right, and the frame d comprises channel iron members parallel at the rearparts d<SP>1</SP>, d<SP>2</SP> and converging at the front, at d<SP>3</SP>, d<SP>4</SP>, with web plates e at the apex of the angle to receive the bolt. The blade is held in position by a removable stay g, and may be mounted on a hinge as shown in Fig. 3 so as to be tilted to an inoperative position and held there by a pivoted stay h adjustable in a fixed bracket m. The lower edge b<SP>1</SP> of the blade may be separate so as to yield against springs s on bolts r when meeting a stone or other obstruction.
Patent GB-113803-A (GB)
Title: Improvements in Packing Arrangements for Fluid Pressure Cylinders.
IPC: F16J9/00
Filed: 1917-02-05
Abstract: 113,803. Miller, J., and Fletcher & Co., G. Feb. 5, 1917. Pistons; piston packing.-Antifriction metal, leather, rubber, or other packing is compressed between two parts of a piston by the fluid pressure. Fig. 1 shows the invention applied to the bearing of a sugar-cane mill constructed as described in Specification 101,693, [Class 12 (i). Bearings &c.]. The piston in the hydraulic cylinder 3 acts on the bearing through a distance-piece 7 and a cap 1. The packing is contained between fanges 11, 12 on the two parts 10, 8 of the piston, which are relatively guided by pins 9. Alternatively, the cap 8 may be uppermost, and the pins 9 may be replaced by a. central bolt. In the form shown in Fig. 5. the pressure on the packing is reduced by fluid pressure admitted through perforations 31 to the space 32 between the two parts of the piston, and by leakage round the central bolt to the space 34. Alternatively, the bolt may be packed. The cap may be acted on also by a spring.
Patent GB-552543-A (GB)
Title: Improvements in and relating to fastenings for doors, lids and the like
IPC: F23M7/00
Filed: 1942-02-12
Abstract: 552,543. Hook fastenings. FERRO-STEEL STRUCTURES Ltd., SAADY, M., and VANNECK, V. P. BOURNE-. Feb. 12, 1942. No. 1872. [Class 44] A toggle hook fastening for the lids of ammunition lockers, manholes &c. comprises a bifurcated mild steel block 9 pivoted at 8 on a lug 7 secured to the container lid 3 and having pivoted thereon at 13 a yoke-form member 14 which carries an adjustable hook-ended bolt 16 with lock-nut 19. The hook end 15 of the bolt engages a hook-like abutment 17 secured to the wall 1 of the container. The pivot pins 8, 13, bolt and lock-nut may be of brass or phosphor bronze, the remaining parts preferably being mild steel. A latch or handle 12 is welded or otherwise secured to the block 9.
Patent GB-181046-A (GB)
Title: Movable seat for vehicles and the like
IPC: B60N2/04
Filed: 1921-01-12
Abstract: 181,046. Chapman, A. W., and Biddlecombe, F. G. L. Jan. 12, 1921. Seats; seat adjustments.-A movable seat for motor.cars, boats, aeroplanes, &c. is mounted on rollers, slides, or other antifriction appliances at one extremity and pivoted arms or their equivalent at the other extremity, so that, when the seat is moved, one end moves in a straight line and the other is lifted up and describes a curve. In the seat shown, the rear edge of the box-like base 2 of the seat 1 normally rests on the floor or is provided with resilient buffers. The front end is mounted on rollers 4, which may run on a track. Bent rods 5 are pivoted to the floor and to the seat base 2 near the rear. They may be shaped to prevent the seat from swinging right forward when moved. An anglepiece 8 engages the roller spindle 3 to prevent the seat from tipping backwards when required. The seat may be tilted over backwards for cleaning &c., and means may be provided for locking it in different positions.
Patent GB-144581-A (GB)
Title: Improved cleaning paste
IPC: C11D7/12
Filed: 1920-01-21
Abstract: A paste for cleaning horn, bone, enamel, metal, and like articles consists of sodium bicarbonate and glycerine.
Patent GB-686842-A (GB)
Title: Fluid pressure actuated blast gun primarily for cleaning purposes
Inventor: NESHAM JOHN EDWARD CROSSLEY
IPC: F28G1/16
Filed: 1950-01-25
Abstract: 686,842. Apparatus for cleaning tubes, &c. AIRNESCO PRODUCTS, Ltd. Oct. 19, 1950 [Jan. 25, 1950], No. 2015/50. Class 99 (ii) [Also in Group XXIX] A valve V normally maintained by a spring S against a seat 40<SP>1</SP> in a discharge opening O formed in a detachable cap 101<SP>1</SP> is actuated to release pressure fluid in a series of blasts by a piston P reciprocated in a cylinder C of a block 106 secured within a casing A and having circumferential openings which permit the flow of fluid through a chamber B from an inlet I to the outlet O. Mechanism which controls the admission of fluid from the chamber to the cylinder may comprise a hand-controlled spring-biased ballvalve D. The seat of the valve V may be formed in a block 105 held, together with the block 106, in the casing by the cap. In modifications, a handcontrolled valve is arranged either upstream or downstream of the inlet and permits fluid to flow directly into the chamber which communicates by open ports with the cylinder. Specifications 660,565 and 660,619 are referred to. According to the Provisional Specification, wherein the cylinder is formed integrally with the casing (a) the reciprocating movement of the piston is transmitted to the valve V by a tappet lever, and (b) the valve V is directly connected to the piston and fluid passes through a side passage from the chamber B to the valve D.
Patent GB-895681-A (GB)
Title: Improvements in the preparation of glycolonitrile
Inventor: SEXTON ARTHUR ROSS
Filed: 1959-01-20
Abstract: Glycolonitrile is prepared by establishing a liquid reaction medium containing liquid hydrogen cyanide, maintaining said reaction medium in the liquid phase and progressively adding a formaldehyde-yielding material at a rate such that most of it is substantially immediately reacted with the cyanide present to form glycolonitrile.  Aqueous or non-aqueous systems may be used and the liquid phase may be maintained by using appropriate conditions of temperature, pressure and reflux, reaction temperatures of 0 DEG C. to 100 DEG C. being mentioned.  The process may be operated continuously or batchwise. Alkaline or acid catalysts may be present.  The glycolonitrile may be converted to amineacetic acids, such as ethylenediamine-tetracetic acid, by reaction with the amine in the presence of alkali hydroxide. Other specified amines are mono- and di-hydroxyethylethylenediamine, diethylenetriamine, triethylenepentamine and hydroxyethyl substitution products thereof.
Patent GB-797821-A (GB)
Title: Improvements in or relating to heat exchangers and the like
Inventor: BROAD CHARLES SAMUEL
IPC: F28F9/16
Filed: 1956-01-23
Abstract: 797,821. Making heat exchangers; soldering. GALLAY, Ltd., and DELANEY, C. T. Jan. 15, 1957 [Jan. 23, 1956], No. 2191/56. Classes 83 (2) and 83 (4). In securing tubes 12 to a collector plate &c. 11 for a heat exchanger or the like, a thin sheet or strip of solder 13, orificed at 14 to correspond with tube receiving orifices 15 in the plate 11 and flanged at 16 around the peripheries of the orifices 14, is placed over the plate 11 with the flanges projecting into the orifices 15, the tube ends are inserted into the orifices 14 in the solder sheet &c. 13 so that the flanges are between the tubes and the edges of the orifices 15 and heat is applied to effect soldering. The edges around the orifices 15 in the plate 11 are also flanged as at 17 and to effect heating electric terminal clamps 18, 19 are attached to the plate 11 and current is passed through the plate.
Patent GB-749039-A (GB)
Title: An improved sill
IPC: E06B1/70
Filed: 1954-01-25
Abstract: 749,039. Window sills. WALLIS, W. A. T. Jan. 25, 1955 [Jan. 25, 1954; March 18, 1954], Nos. 2246/54 and 7965/54. Class 20(3). A pre-formed sill comprises a concrete body 1, Fig. 2, having a lower surface 2 for cement bonding to the brickwork 4, and a continuous row of tiles 6 bonded to the concrete 1 and extending outwardly and downwardly therefrom, the upper ends of the tiles 6 being located within a continuous crown 10 at the rear upper corner of the sill and extending above the upper end of the exposed portion of tiles 6. As shewn two rows of tiles 6, 7, are employed the junctions between adjacent tiles being staggered in the two rows and the adjacent edges of the tiles in row 7 being notched at 13 to increase the bonding of the concrete. Reinforcing wire 15 or wire mesh is applied about the tiles 7 and embedded in the concrete 1. Nibs 14 may be provided on the lower edges of tiles 7. The crown 10 is formed as an extension of the concrete body 1, having a groove 16 to receive the flange 17 of a standard metal window frame 18, and a further groove 22 to receive condensation which may pass through drain holes 23 into the cavity 21 of the wall. A groove 24 in the rear part of body 1 receives the edge of a window ledge 26. In a modification for use with a non- cavity wall the drain holes 23 pass beneath tiles 7 to the front of the wall and terminate in short lengths of tube. In a further form for use with wooden window frames the latter is grooved at its lower edge to seat on the crown 10, the window ledge 26 having tongue and groove engagement with the frame. In a further form the wooden frame has a moisture collecting groove and drainage holes, the latter registering with a groove in crown 10 to drainage holes. In another embodiment, Fig. 9, the crown 10 is a separate wooden member having metal elements 29 secured thereto which are embedded in the concrete 1. The crown 10 is grooved at 37 to receive the ends 9 of tiles 6, grooved at 16 to receive the rear flange of the metal window frame and is grooved at 38 to receive the tongue 39 of the window ledge 26. The drainage holes 23 in the crown 10 register with holes 23<SP>1</SP> in the concrete 1. In another form the wooden crown 10 is encased in a sheathing of sheet metal or synthetic resin. In a further form only one row of tiles is used. The sill may be formed in sections for joining together on the site as shewn in Fig. 11, where the ends of adjacent sections are formed with a groove 40 and complementary tongue, respectively and end grooves 41, formed by set back edges 42 of the end tiles in layers 7, are each filled with a separate tile 43 bonded in position. Alternatively the upper layers 6 may have set back edges which receive separate tiles when the sill is in position. In a further form the sill is made wholly of concrete.
Patent GB-1086711-A (GB)
Title: Improvements in fluid mixing apparatus
Inventor: WILLIS HERBERT GORDON
IPC: B01F15/00
Filed: 1964-01-17
Abstract: 1,086,711. Delivering measured quantities of liquid. COAL INDUSTRY (PATENTS) Ltd. Jan. 15, 1965 [Jan. 17, 1964], No. 2253/64. Heading B8N. Apparatus for controlling the quantity of a mixture of liquids in a container 1 comprises means 25, 26 operative at a lower level of the mixture and adapted to cause an inlet valve 16 to open and effect infusion of the component liquids of the mixture, and further means 12, 14 operative at a higher level of the mixture and adapted to close the inlet valve means. The container 1 is divided into two compartments 2, 3, for containing soluble oil and a mixture of soluble oil and water respectively. A valve 25 actuated by a float 26 is mounted in the compartment 2 and is connected by a conduit 24 to a chamber 5 in which is mounted a float 12 for controlling an inlet valve 16 in a pressurized-water supply pipe 17; the supply pipe is connected to an infuser pipe 21 located in the oil compartment 3. In operation, when the mixture of oil and water has dropped to the low level shown, the float 26 drops thereby opening the valve 25 so as to drain the chamber 5 and allow the float 12 to drop. The pressurized-water valve 16 is then opened via a lever 14, 18 and, by the water flowing over the infuser pipe 21, oil is raised from the compartment 3 so that the compartment 2 is gradually filled with the oil/water mixture. When the level of the mixture reaches the high level shown, the mixture flows via a pipe 23 into the chamber 5 thereby causing the float 12 to rise and shut the inlet valve 16.
Patent GB-196391-A (GB)
Title: Improvements relating to alternating current electric motors
IPC: H02K19/12
Filed: 1922-01-25
Abstract: 196,391. Carr, L. H. A., and Metropolitan-Vickers Electrical Co., Ltd. Jan. 25, 1922. Alternating - current motors; exciting.-In an alternating-current motor adapted to start as an induction motor and to run as a synchronous motor and having its secondary member provided with a number of windings which are connected up fcr starting a n d for synchronous operation as described in Specification 158,373, the secondary windings are so connected for synchronous operation that a closed circuit independent of the source, of continuous.current excitation is formed in which damping currents can circulate, should the motor fall out of step. In the arrangement shown in Figs. 1 and 3, in which two three-phase Y- or delta-connected windings are provided on the secondary member, a starting-resistance is connected across one only of the two windings or across the two windings in parallel. For synchronous operation, the two windings A, B, C and D, E, F are connected together as shown so that damping circuits are formed independently of the source of continuous current G. In addition, the slip-rings 1, 2, 8, 9 may be connected to the slip-rings 5, 4, 12, 11 respectively. In the delta-arrangement, one or both of the windings B, F may be dispensed with since the continuous current does not pass through either of the windings.
Patent GB-271537-A (GB)
Title: Improvements in and relating to dyes and dyeing
IPC: C09B67/28
Filed: 1926-01-26
Abstract: 271,537. Smith, W., Thomas J., and Scottish Dyes, Ltd. Jan. 26, 1926. Leuco flavanthrones and esters thereof. - Flavanthrone or its derivatives is reduced in sulphuric acid solution by means of a metal; the leuco compound thus obtained is very stable in air but is easily oxidized to the parent dyestuff in an alkaline medium. The products can be directly used for dyeing and printing after addition to alkaline baths or printing pastes with or without hydrosulphite. The leuco compounds may be also converted into stable esters by treatment with esterifying agents such as alkylsulphuric halides in the manner described in Specifications 186,057. 202,630, 202,632, 231,889, 245,587, 248,802. 258,626 and, 260,638; no special precaution to exclude air during the esterification is necessary; the esters may be used for dyeing and printing by the methods described in Specifications 245,587 and 247.787. According to examples flavanthrone and dichlorflavanthrone are reduced with copper powder in concentrated sulphuric acid at a low temperature: on diluting the acid solution slighily the dihydro compounds crystallize out.