baber/WOPTO huggingface dataset:
Patent GB-502764-A (GB)
Title: Improvements in or relating to high speed watercraft driven by propellers
IPC: B63B1/10
Filed: 1938-03-04
Abstract: 502,764. Watercraft. HERMAN. A. March 4, 1938, No. 6837. [Class 113 (ii)] A watercraft has a hull 2 supported on a frame 1 composed of a latticed structure braced by diagonal wires. This frame elasticity supports ropes on which are rotatably mounted floats 3. Various shapes of float bodies and various arrangements of supporting ropes for these are described.
Patent GB-288424-A (GB)
Title: Improvements in or relating to the casting of hollow bodies of metal
Filed: 1927-03-11
Abstract: 288,424. Brown & Co., Ltd., J. and Ellis, Sir W. H. March 11, 1927. Casting-machines ; castings, extracting. - In casting a hollow body the metal is poured into a mould having a removable bottom and a plunger is inserted, then the bottom is replaced by a member containing a ram for ejecting the plunger from the still hot metal. The mould m is first placed on the closure h arranged to one side of the press and molten metal u is poured into it. The whole is brought below the plunger t which is then inserted by a piston a. The mould is lifted, when the metal has solidified, by hooks q, Fig. 2, and pistons r and a, as shown in Fig. 1, to allow the closure h to be replaced by g. This supports a loose plunger o which is raised by a ram b, Fig. 2, to initiate the ejection of the plunger t, abutments w being inserted if desired. The plunger is tapered and coated thinly with refractory substance.
Patent GB-609099-A (GB)
Title: Improvements in or relating to the production of dispersions
IPC: C09K23/00
Filed: 1946-03-06
Abstract: Aqueous dispersions of synthetic resins capable of coalescing with plasticisers at temperatures below 100 DEG  C. are prepared by dispersing in water an amount of plasticiser sufficient to give a film-forming composition with the resin at such temperatures, forming a paste-like mixture of the dispersion, the solid disintegrated resin and a dispersing agent, and kneading the mixture at a temperature at which coalescence occurs until the resin is dispersed.  Suitable dispersing agents are long chain carboxylic acids or sulphonic acids, sulphated long chain aliphatic alcohols or sulphated castor oil. Stabilisers such as casein, glue, sodium alginate, methyl cellulose, polyvinyl alcohol and colloidal clay, e.g. bentonite, may be added, together with ammonia.  The dispersing agent and stabiliser are preferably added to the water prior to dispersing the plasticiser and finally the resin is added.  The temperature throughout is preferably kept constant.  Dispersions of polyvinyl acetate with dibutyl phthalate are described.ALSO:Aqueous dispersions of synthetic resins capable of coalescing with plasticisers at temperatures below 100 DEG C. are prepared by dispersing in water an amount of plasticiser sufficient to give a film-forming composition with the resin at such temperatures, forming a paste-like mixture of the dispersion, the solid disintegrated resin and a dispersing agent, and kneading the mixture at a temperature at which coalescence occurs until the resin is dispersed.  Suitable dispersing agents are longchain carboxylic acids or sulphonic acids, sulphated long-chain aliphatic alcohols or sulphonated castor oil.  Stabilisers may also be added and include casein, glue, sodium alginate, methyl cellulose, polyvinyl alcohol and colloidal clay, e.g. bentonite. Ammonia may also be added.  The dispersing agent and stabiliser are preferably added to the water prior to dispersing the plasticiser and finally the resin is added. The temperature throughout is preferably kept constant.  Dispersions of polyvinyl acetate with dibutyl phthalate are described.
Patent GB-348196-A (GB)
Title: Improvements in or relating to presses for compressing composite materials
IPC: H04B14/00
Filed: 1929-11-08
Abstract: 348,196. Hydraulic presses. BAKELITE CORPORATION, 247, Park Avenue, New York, U.S.A.-(Assignees of Turking- ton, V. H. ; 75, Arlington Avenue, Caldwell, New Jersey, U.S.A.) Nov. 8, 1929, No. 6946 /31. Convention date, Nov. 10, 1928. Divided on 345,228. [Class 69 (ii).] An hydraulic press has a chamber 1 within which works a ram 8, heating fluid being circulated through the chamber through pipes 2, 3. The work to be pressed is placed within the chamber and the chamber may be pivotally mounted on the bed of. the press so that it may be swung clear of the ram to give ready access to the work. Specifications 28539/04, [Class 69, Hydraulic machinery &c.], and 345,228 are referred to.
Patent GB-924777-A (GB)
Title: Cash-desk for self-service stores
IPC: A47F9/04
Filed: 1962-02-22
Abstract: 924,777. Shop counters. W. POTRAFKE. Feb. 22, 1962 [March 2, 1961], No. 7008/62. Class 116. A cash desk unit for self-service stores has a plate 19 serving as a bag rest for customers, delivery sections 11, 12, 13 and a linearly movable carriage movable on rails 28 and carrying a table 32 with cash register 37, discount stamp issuer 38, change-dispenser 41, and a seat 34 mounted on upright 31 carrying the table so that the cashier may move the carriage to deal in turn with each customer standing in front of a delivery section.
Patent GB-557423-A (GB)
Title: Improvements in or relating to curved printing members for rotary printing presses
IPC: B41C1/18
Filed: 1942-05-22
Abstract: 557,423. Printing surfaces. STEVENS, A. H. (Electrographic Corporation). May 22, 1942, No. 7023. [Class 100 (ii)] A method of making a composite curved printing member comprises preparing a thin flat relief printing plate, e.g. an electrotype 10, Fig. 13, routing non-printing areas 38 of intermediate size to reduce the thickness of the plate at these portions, securing the plate, such as by soldering, to a curved base or turtle 49 and then completely removing, by routing round their outlines, the larger non-printing areas 39. The electrotype may be deposited in a mould to a thickness of slightly more than .045 inch and then secured printing face down on a suction table while its back is shaved to reduce the thickness of the plate to from .02 to .045 inches. The plate is then placed in a hydraulic press with its back supported on an underlay, the printing surface is covered with a sheet of soft metal over which is placed a resilient cushion and the whole subjected to pressure so that the printing surface is modified in accordance with the underlay. The plate with the soft metal sheet is again placed face downwards on the suction table and the back shaved to render it flat and smooth. The soft metal sheet is then removed and the intermediate sized non- printed areas routed to reduce their thickness. The plate is then curved, a thin film of soldering foil applied to the back except at these areas corresponding to the large non-printing areas of the plate. The plate is then placed on-its supporting turtle and the whole inserted, printing face down, in a concave bed and pressed thereon by a convex press head. The bed is heated to melt the solder foil and the head is then cooled by a circulating liquid to set the solder. The turtle and plate are assembled together in register by dowel pins passed through holes in the two members these holes being in a definite position with respect to the design and the edges of the plate and turtle which also register with each other.
Patent GB-416075-A (GB)
Title: Improvements in and relating to spectacle frames
IPC: G02C5/22
Filed: 1933-03-08
Abstract: 416,075. Spectacles. CALLENDER, L. J., 18, Cross Street, Hatton Garden, London. March 8, 1933, No. 7094. [Class 97 (i).] The hinge eyes connecting the lens frames to the side arms of shell &c. spectacles are attached to the spectacle frame by plate members disposed at rightangles to the hinge axis and having their major dimensions in the vertical planes of the parts of the frame to which they are attached. The form shown comprises a hinge eye 9 carried by a plate member 13 attached to the side arm 3 and passing between eyes 8, 10 carried by plates 11, 12 attached to the lens frame 7. The plates are embedded in slots in the frame members and the slots terminate short of the outer faces of the said members so that the plates are not seen from the front. The plates are secured by pins 15. Each plate member may be formed with a projection engaging a notch in the frame to assist in maintaining the plate in position.
Patent GB-586991-A (GB)
Title: Improvements in or relating to the disintegration of antimony-bearing drosses containing drossing metals and to the recovery of antimony therefrom
IPC: C22B30/02
Filed: 1943-05-05
Abstract: Antimony-bearing drosses (e.g., the aluminium antimony dross from the refining of tin described in U.S.A. Specification 2,278,134) are disintegrated by tumbling the dry dross preferably in a mildly oxidizing atmosphere, to oxidize partially the dross without fuming off substantial quantities of antimony trioxide, while maintaining the temperature above 446 DEG F. to avoid the formation of stibine and arsine.  The dross may be pressed into briquettes with the removal of molten metal before charging to a disintegrator (see Group II), where a temperature of 600-800 DEG F. may be maintained, and more molten metal removed.  The powder may then be heated in a stream of air up to 1,200 DEG F. in a rotary roaster (Fig. 3, not shown), molten tin being tapped off if necessary, and the antimony and arsenic trioxides which form are collected.  A mixture of fuel and air, containing for example 5 per cent. oxygen, is then introduced and the temperature raised to 1,600-1,850 DEG F.  When fuming has ceased the residue is treated in a reducing atmosphere containing for example 1 per cent. carbon monoxide, and oxidation and reduction treatments are repeated until all the oxides have been removed.  When aluminium-containing drosses from tin refining have been treated, the residue containing aluminium and tin may be returned to the tin smelting process.
Patent GB-1459066-A (GB)
Title: Method of purifying pullulan
IPC: C12P19/12
Filed: 1975-02-20
Abstract: 1459066 Dewatering and purifying pullulan HAYASHIBARA SEIBUTSU KAGAKU KENKYUGO KK 20 Feb 1975 [23 Feb 1974] 7207/75 Heading C3U A method for successively purifying pullulan using two or more tanks disposed in series and containing aqueous organic solvent solutions of different concentrations, the concentration of organic solvent in each tank being kept less than in the succeeding tank, comprises successively ejecting an aqueous pullulan solution into the first tank to form a mixture wherein pullulan particles are suspended, keeping the organic solvent concentration constantly at a higher concentration than that necessary for precipitating the pullulan particles, separating the suspended pullulan particles from the mixture and transferring the separated particles to a succeeding tank, repeating such steps at least once to dehydrate the pullulan particles and then recovering the dehydrated pullulan in a powder form from the last tank.
Patent GB-365858-A (GB)
Title: Apparatus for removing fly ash from flue gases in firing plants working with suctiondraught
IPC: B01D45/02
Filed: 1931-03-09
Abstract: 365,858. Treating flue gases. HABER, E., 2, Geisbergstrasse, Berlin. March 9, 1931, No. 7270. [Class 8 (ii).] For removing fly ash from flue gases in firing plant which work with suction draught, centrifugal blowers are placed at a point in the chimney where the flue gases are made to enter an annular space and change direction and so deposit the fly ash. A chimney 1 extends down into a casing 2 on the outside of which are the flues 4 leading from the furnaces. These flues 4 are led to the suction orifices of centrifugal fans which deliver the gases past a flap valve 7 into the annular space 6. The flue gases deposit fly ash in a hopper 13 and pass upwardly through a grating 15. In an alternative method the pipes 4 are led in horizontally as at 17, and in the event of the fans being out of use the pipes 4 or 17 may be connected direct by rising pipes 18 with the chimney. The centrifugal fans are intended to be driven by electric motors and these units are disposed within a casing.
Patent GB-145143-A (GB)
Title: Improvements in or relating to controlling devices for electric starters for internal combustion engines
IPC: F02N15/06
Filed: 1919-03-24
Abstract: 145,143. Gill, F. J. March 24, 1919. Turning-gear.-In an electric starter in which a starter pinion moves axially into and out of mesh with an engine pinion, the supply of current to the starting-motor is cut off, during the disengaging movement of the pinion, by a tripping-switch which controls an electro-magnetic circuitbreaker. In the form shown in Fig. 1, the starter pinion D moves axially on a screw-threaded armature shaft B. A slidable member G has a lug G<1> in the path of the pinion D and a tooth G<2> which engages a pivoted finger K on the member L of the tripping-switch when the pinion D moves out of mesh with the engine pinion E. The switch member is thus lifted into contact with terminals M and supplies current to the solenoid V of a circuit-breaker shown in Fig. 5. This comprises a handle U<1> connected by the members U<2>, U<3> of a toggle-joint tu a member U for closing the supply circuit of the motor. When current is supplied to the solenoid V, the core V<1> moves against a spring V<3>, breaking the toggle-joint, and the contact member U is raised by a spring U<4>. It can be closed again by lifting the handle U<1> to straighten the toggle and then depressing it. In modifications, the pinion D is fixed on an axially movable armature shaft, which may have a collar for actuating the member K of the tripping-switch L, M. In the form shown in Fig. 3, a member P of the tripping-switch hangs between springs Q and projects into a recess B<1> in the armature shaft B. When the shaft B is moved to the left to bring .the starter pinion into engagement with the engine pinion, the member P enters a recess B<2>, and on the disengaging movement of the shaft the edge of the reoess B<2> moves the member P into engagement with a stationary contact R in circuit with the solenoid of the circuit-breaker. In another form, Fig. 4, a collar B<0> on the armature shaft is insulated from the commutator Wand has a groove into which the commutator brush Z' is depressed by a spring Z<4> when the starter pinion is in the disengaged position. A conducting cap Z<2> on the insulating part Z of the brush is then in contact with a metal plug Z' and the coil of a circuit-breaker is short-circuited. The part B<0> may be an extension of an axially movable pinion, the members Z<2>, Z<3> then taking the place of the switch L, M, Fig. 1.
Patent GB-938197-A (GB)
Title: Flower ribbon strip
IPC: D04D7/10
Filed: 1962-02-24
Abstract: 938,197. Rosettes. T. ENOMOTO. Feb. 24, 1962, No. 7299/62. Class 141. [Also in Group VIII] A fabric strip 1<SP>1</SP> having a saw-tooth drawstring 2 which, when pulled, forms the strip into a rosette, has the intermediate saw-tooth shorter than those at the extremities of the drawstring so that the petals of the rosette have a smaller series 7<SP>111</SP> at the centre than those at the periphery. A narrower fabric strip of different colour may be applied to the main strip to give two-colour petals. As shown in Fig. 13, two rosette-forming lengths of strip are separated by a knot 9 and when the ends 3<SP>1</SP> of the drawstring are pulled a double rosette is formed. In a modified form, Fig. 14 (not shown), the ends of the drawstring are knotted and, instead of the knot 9, a loop to be pulled is formed between the two rosette-forming lengths.
Patent GB-733251-A (GB)
Title: Improvements in machines for forming long strips of cardboard or like material into flat tubes and subdividing them transversely
IPC: B31B3/00
Filed: 1953-03-17
Abstract: 733,251. Making boxes. LUDDINGTON, E., and THRISSELL ENGINEERING CO., Ltd. March 2, 1954 [March 17, 1953], No. 7370/53. Class 18. [Also in Group XXX] Partially finished tubular boxes folded from flat blanks are re-timed in their passage through parts of the machine by being accumulated in a magazine and fed forward positively from it for further forming processes. The invention as applied to a machine for making cigarette carton shells, described in Specifications 650,903 and 727,132, comprises a magazine 8 into which flat tubes are fed from the seam drying wheel 7. The tubes accumulate until their weight causes a pivoted false bottom 30 to tilt, when the lowest tube is engaged by a tooth on a wheel 17 and is advanced to a roller 20 and belts 9, 10 which forward it to re-creasing devices 11.
Patent GB-698207-A (GB)
Title: Holders for tools such as taps, hand reamers and the like
IPC: B23B31/20
Filed: 1951-03-30
Abstract: 698,207. Wrenches. HABERL, R. March 30, 1951 [April 6, 1950], No. 7453/51. Class 61 (iii). A holder for taps, reamers and the like hav-' ing cylindrical shanks which are square at the extremity comprises a sleeve 1 into the lower end of which is fitted a slotted chuck 3 having internally stepped jaws 6 providing sockets of different sizes corresponding to the shank diameters of tools of consecutive sizes. As shown, the square extremity 7 of the shank 8 of a tool is positioned in the socket 6 2 , the corners of the square extending into the slots 4 and the cylindrical shank 8 extending into the next larger socket 6 3 . The dimensions of the sockets are such that on drawing the chuck into the sleeve to grip the square extremity 7 the jaws also grip the cylindrical shank 8 in the socket 6,. To enable the square extremity of the shank of a tool to be gripped in the socket 6 3 , the slots are widened in this section or the jaws may be flattened adjacent the slots.
Patent GB-1430924-A (GB)
Title: 1,3-diethers of 2-azaestratrienes
IPC: C07J73/00
Filed: 1974-02-19
Abstract: 1430924 2-Azaestratrienes; and intermediates G D SEARLE & CO 19 Feb 1974 [20 Feb 1973] 7478/74 Headings C2U and C2C Novel 2-aza-steroids of the formula wherein X is carbonyl, #-hydroxymethylene or α-alkynyl-#-hydroxymethylene in which the alkynyl group has 2 to 7 carbon atoms, and R is C 1-7  alkyl are prepared by alkylation of 2- aza-steroids of the formula wherein Z is carbonyl or #-hydroxymethylene and the dotted lines indicate the presence of a #<SP>4</SP>- or #<SP>5(10)</SP>-double bond, followed, when the 17α-alkynyl-17#-ols are required, by alkynylation of the 17-ones. Also the 17-ones may be simply reduced to the 17#-ols. In the alkylation process N-alkyl-3-alkoxy compounds, e.g. N - methyl - 2 - aza - 3 - methoxy - estra - 3,5(10)- diene-1,17-dione are also produced; these are separated from the required products by chromatography. The 2 - aza - steroids of the second general formula above are prepared as follows: 6#,19- epoxy - 17# - hydroxy - 1 - oxo - 1,2 - seco - A- norandrost - 3 - en - 2 - oic acid is oxidized and cyclized to 6#,19 - epoxy - 2 - oxa - androst- 4-ene-1,3,17-trione, this is reacted with ammonium acetate in acetic acid to give 6#, 19- epoxy - 2 - aza - androst - 4 - ene - 1,3,17- trione, this is cleaved with zinc and silver acetate to give 2-aza-19-hydroxy-androst-5-ene-1,3,17- trione and this is oxidized and treated with ethanolic NaOH to give a mixture of 2-azaestr - 5(10) - ene - 1,3,17 - trione and 2 - azaestr - 4 - ene - 1,3,17 - trione, which mixture may be used as such in the process of the invention. The 17#- hydroxy starting materials are prepared by hydrolysing and reducing the 2-oxa steroid referred to above to give 6#,19- epoxy - 17# - hydroxy - 1,2 - seco - A - norandrost- 3 - ene - 1,2 - dioic acid, refluxing this with acetic anhydride to give 17#-acetoxy-6#,19-epoxy- 2 - oxa - androst - 4 - ene - 1,3 - dione, converting this to 17#-acetoxy-2-ara - 6#,19-epoxy-androst-4- ene-1,3-dione, and converting this to a mixture of 2- aza 17# - hydroxy - estr - 5(10) - ene - 1,3- dione and 2-aza-17#-hydroxy-estr-4-ene-1,3-dione via 17# - acetoxy - 2 - aza - 19 - hydroxyandrost - 5 - ene - 1,3 - dione and a mixture of 17# - acetoxy - 2 - aza - 10# -formyl estr - 5 - ene- 1,3 - dione and 17# - acetoxy - 2 - aza - 10# - carboxy-estr-5-ene-1,3-dione. The novel compounds have the ability to mobilize lipids from storage depots into the blood stream. They also possess antiprotozoal, antifungal and anthelmintic properties.
Patent GB-219619-A (GB)
Title: Improvements in or relating to belt buckles
IPC: A44B11/26
Filed: 1924-03-24
Abstract: 219,619. Sharbutt, J. W., and Maedgen, C. A. March 24, 1924. Grips, sliding-roller type. - The back of the casing of a belt-fastening of the kind in which the free end 1 of the belt is gripped when under tension between a slidable pin or roller 13, and the rear side of the front face of a loop 5<1> of the buckle casing, as shown, is formed with a pocket 7 from the bottom of which projects the female member 6 of a two-part fastener. This member may be integral with or detachable from the buckle casing and co-operates with a male member 9 on a trouser button 10, or on the garment itself, to prevent movement of the belt relatively to the garment after fastening.
Patent GB-439485-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J3/36
Filed: 1934-03-09
Abstract: 439,485. Typewriters. HAAS, O., 15, Rheinstrasse, Wiesbaden, Germany. March 9, 1934, No. 7613. Convention date, March 9, 1933. [Class 100 (iv)] Type-lever machines.-In a typewriter having intermediate levers for transmitting motion from the key-levers to the type-levers, the latter being pivoted in a segment defining a plane inclined to the base-plane, the bearing points of the intermediate levers lie on a curve defining a plane which is at an angle to the base-plane and cuts the plane of the typelever segment above the base-plane. The arrangement provides a portable typewriter of low overall height, with a substantially even pressure overall the keys and without twists and friction at the pivots of the intermediate and type-levers. To attain the first object, the central type-lever is arranged to lie at the same angle (in the reverse direction) in its position of rest as in the striking position, and the intermediate levers are arranged to lie and move in planes closely parallel to the type-levers, so that in the striking position they can occupy the space formerly occupied by the type-levers. For simplicity in manufacture, the type and intermediate lever segments 2, 12 are arranged as circular combs in a bearing element which comprises also the key-lever bearing 14, which may be formed by spray-casting, and can be lifted bodily out of the machine. To attain an even touch, the line joining two corresponding bearing points 6, 8 should be of constant length and be horizontal from one end of the segments to the other. To avoid friction, a plane through the axis of the type-lever segment and through a given bearing must pass also through the corresponding intermediate-lever hearing. By mathematical analysis it is found that, for a given angle of inclination alpha of the typelever bearing, radius r of the typelever bearing, and radius d + r of the intermediate lever bearing, the intermediate-lever bearing must be tilted at angle x where sin x = DS. sin (90-alpha) / O2S and DS and O2S can be calculated from r and d. If this condition is fulfilled and the segments are arranged so that, if they were rotated about their intersections with the base-plane into the base-plane, they would be concentric, the desiderata will be approximately achieved for all the lever systems. If the intermediate-lever segment is made elliptical so as to obtain a lower construction one or other of the conditions referred to above must be abandoned and less efficient working will result.