baber/WOPTO huggingface dataset:
Patent GB-857674-A (GB)
Title: Improvements in or relating to disc brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D65/14
Filed: 1958-01-22
Abstract: 857,674. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Jan. 7, 1959 [Jan. 22, 1958], No. 2212/58. Class 103 (1). In a " spot-type " disc brake each of a pair of friction pads 27 is supported in a non- rotatable carrier 11 for bodily movement relative thereto and is urged towards the disc 10 by an hydraulically actuated thrust device 13 acting in a plane oblique to the plane of the disc, such that the pads, when in contact with the disc, tend to move with the disc during rotation of the latter; such movement increasing the pressure exerted by the pads on the disc. The pads 27 are restrained to move in planes oblique to the plane of the disc in a chordal plane by rollers 35 and inclined surfaces 22 on the carrier extension 19.
Patent GB-524152-A (GB)
Title: Improvements in and relating to the manufacture of airscrew or propeller blades
IPC: B21K3/04
Filed: 1939-01-23
Abstract: 524,152. Making propeller blades. HIGH DUTY ALLOYS, Ltd., and HERON, J. A. Jan. 23, 1939, Nos. 2245 and 4275. [Classes 83 (ii) and 83 (iv)] Forging ; extruding.-In a method of making airscrew or propeller blades or like hollow articles with a closed end the metal is extruded through a die and over a mandrel by relative movement between the two to shape the i nterior of the blade in front of the mandrel, the crosssectional area of the blade being varied during extrusion by variation of the size of the die and a thickened root portion being produced on the blade. According to one method a heated billet 3 of light alloy, having a pre-formed central cavity 4, is placed in a container 1 and is acted upon by a two-part plunger 5, 6 whose mandrel portion 5 first fills the cavity 4 and then extrudes the billet rearwardly until its top surface reaches the shoulder 7 of the plunger. The plunger 6 then extrudes the end of the billet through a die 11 to produce a closed end 14 which is shaped internally by the continued advance of the mandrel 5. Further advance of the mandrel through the die extrudes the billet to form the hollow portion 17 and this advance is stopped whilst a thickened root portion 16 still remains in the cavity 2 of the container. The plunger is then replaced by a cylindrical plunger 30 fitting the cavity 2, or the mandrel 5 is removed from the plunger 6, and the thickened root is forced through the die to close this end as shown in Fig. 3. Alternatively the partially formed blade may be removed from the container 1 and the root closed or partially closed by hot swaging or other means. The die and mandrel are of elliptical section to produce a blade of approximately aerofoil section. The die 11 is furnished with movable segments 20, 21 which reduce the effective size of the die whilst the tip portion of the blade is being extruded, but are withdrawn progressively by mechanism 23 &c. during advance of the ram to vary the wall thickness of the blade along its length. The blade may be extruded into a mould 25 Fig. 4, in order to impart thereto a helical twist, or may be extruded in tapered or cylindrical form and given its final shape by stamping or pressing, with or without final machining, the root portion being finished as shown in Fig. 3. The mould is in two parts 24, 25 to permit removal of the finished blade and has a vent at 27. The interior of the blade may be filled with cellular and preferably inert material for balancing purposes. Specifications 518,037 and 524,146 are referred to.
Patent GB-572825-A (GB)
Title: Improvements in and relating to the measurement of liquids and in apparatus therefor
IPC: G01F11/28
Filed: 1942-02-20
Abstract: 572,825. Delivering measured quantities of liquid. COURTAULDS, Ltd., HODSON, E., and SOUTTER, R. R. Feb. 20, 1942, No. 2266. [Class 106 (v)] Apparatus for delivering liquid such as molten phosphorus in measured quantities while maintaining it out of contact with the air by a covering of inert liquid such as water, comprises' a reservoir and a measuring chamber connected thereto, and to a receiving vessel, by separate pipes for the heavier and lighter liquids. The measuring vessel 1, fitted with a float 12, is connected to the reservoir 7 by pipes 6, 8, and to the measuring vessel 11 by pipes 9, 10, valves 4 and 5 being provided.. At the beginning of the operation, the receiving vessel 11 and the measuring vessel are filled with the inert liquid. The valves 4, 5 are then turned to put the measuring vessel into communication with the pipes 6, 8. The heavier liquid flows down the pipe 8 and forces the inert liquid up the pipe 6. When the float indicates that the vessel 1 holds the desired amount of heavy liquid, the valves 4, 5 are moved to the position shown when the measured quantity of heavy liquid flows into the receiving vessel 11 and is replaced by inert liquid drawn up the pipe 9.
Patent GB-111592-A (GB)
Title: Improvements in and connected with Hoists for Charging Blast Furnaces and the like.
IPC: C21B7/18
Filed: 1917-02-15
Abstract: 111,592. Wrightson, T. G., Ringquist, J. M., and Head, Wrightson, & Co. Feb. 15, 1917. Hoists with guided skips.-In a hoist for charging a blast furnace, and in which the skip hangs freely from a carriage running on an inclined track, means are provided for preventing the swinging of the skip as it is hoisted. The skip 5 is prevented from swinging by a crutch 27 formed at one end of a lever 25, the other end of which is pivotally connected to the carriage 4. The lever is maintained in the desired position by a roller 28 running in a guide 29 on the hoist frame. In order to facilitate the engagement of the crutch 27 with the skip 5 at the commencement of its movement, a weighted arm 30 is pivoted to the hook 31 at the end of the supporting chain 21. The carriage 4 consists of two cross-heads 15, 16 connected by toggle levers 17, 18 carrying a roller 20 which bears against a guide 23, 24.
Patent GB-552548-A (GB)
Title: Improved centrifugal dressing machine primarily for separating flour and meal from crushed cereal products
IPC: B07B1/24
Filed: 1942-02-20
Abstract: 552,548. Sifting apparatus. TURNER, Ltd., E. R. & F., and HALL, T. W. Feb. 20, 1942, No. 2291. [Class 117] In centrifugal reels of the single- or doublefeed type, the beater spindle 10 is supported intermediate its end bearings 11 by one or more bearings 13 supported from the cylindrical framework .1 carrying the sieving mesh 2. Preferably the bearings 4 for the sieve frame, and the beater spindle bearings 11, 13 are of the anti-friction type. In the case of a double feed type of machine, where the overtails are discharged through a common shoot 17, the bearings 13 are carried by a disc 14 which partitions the sieving cylinder into two compartments. Baffle plates 19 at the inner ends of the two compartments impede the exit of the material under treatment from the sieving compartments. In the case of single-feed machines, the support for the bearings 13 is in the form of a spider. The end of the spindle may have a worm conveyer 21 working in the feed inlet 7.
Patent GB-796374-A (GB)
Title: Means for improving drainage on paper machines
IPC: D21F1/48
Filed: 1956-01-24
Abstract: 796,374. White water drainage in Fourdrinier paper-making machines. ONTARIO PAPER CO., Ltd. Jan. 24, 1956 [Dec. 27, 1955], No. 2294/56. Class 96. Drainage of white water through the wirecloth 1 of a Fourdrinier paper-making machine is improved by blades or scrapers A, e.g. each having an angle of 30 degrees at the leading edge 10 and having a flat-topped portion at the front and a sloping trailing portion, followed by further scrapers B, e.g. each having a leading edge 10<SP>1</SP> of 60 degrees. Specifications 786,998 and 792,584 are referred to.
Patent GB-432490-A (GB)
Title: Improvements in collapsible boxes
IPC: B65D5/50
Filed: 1934-01-23
Abstract: 432,490. Cartons. CROXTED MANUFACTURING CO., Ltd., and LAWSON, M. A., 288, Croxted Road, Herne Hill, London. Jan. 23, 1934, No. 2391. [Class 18] A collapsable carton to hold an electric lamp, bottle, &c., is formed from a single blank provided with parts A, B which support an article spaced from the walls of the carton, and with a cover 2 ... 5 which can, without affecting the article support, be opened to display the article. Each support comprises an end wall 7 and extensions 12 ... 14 thereon, the portion 14 being secured to the base 1. Flaps 17, 18 on the walls 7 are folded to enclose the sides of the article which is supported in apertures 15, 16. When the cover is closed down, the flaps 3, 5 overlap and are secured by a staple, strip of soft metal, or an adhesive strip 6. An aperture 21 allows of access to the contacts of the lamp for testing purposes and it can be seen whether the lamp lights through a window 22 covered with tissue paper &c. in the base.
Patent GB-955512-A (GB)
Title: Triazine compounds and a process for their production
IPC: C07D/
Filed: 1962-01-23
Abstract: The invention comprises compounds of the formula: <FORM:0955512/C2/1> where R1, R2 and R3 are aliphatic, cycloaliphatic, aralkyl or aromatic radicals which may be substituted, e.g. by C1, Br, NO2, OH or CN, or R1 may be hydrogen, and X is C1. or -CH3nC1n where n is 0-3; and their production by reacting a compound: <FORM:0955512/C2/2> with phosgene, e.g. in an inert solvent, preferably from room temperature to 200 DEG C.
Patent GB-162375-A (GB)
Title: Improved process for reducing fused slag to granular form and apparatus therefor
IPC: C21B3/08
Filed: 1920-01-26
Abstract: 162,375. Maguet, M. Jan. 26, 1920. Granulating.-Basic slag is granulated by first dividing the slag as it comes from the furnace into drops thereby cooling it to about 1300‹C., and thereafter projecting the drops into water. The slag flows from a channel c and is met by a jet of air, which may be moistened, from a pipe a whereby it is projected against a hood h, the inner surface of which is moistened. The drops of slag fall into a trough f through which water flows and carries away the granulated product.
Patent GB-944233-A (GB)
Title: Magnetic amplifier
Inventor: FINNAMORE ALAN JOHN
IPC: H03F9/02
Filed: 1959-01-23
Abstract: 944,233. Magnetic amplifiers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 13, 1960 [Jan. 23, 1959], No. 2536/59. Heading H3B. Excitation current for a magnetic amplifier is provided by windings on the amplifier coupled to give feedback to a transistor which in consequence operates as a free-running blocking oscillator. As shown cores T1, T2 have windings n2, n3, connected to base and collector of transistor J and supplied with potentials - VB and - VC. The windings and transistor interact to switch the cores backwards and forwards. Input windings n 1  in series with inductor L unbalance the cores and produce a signal in the balanced output windings n4. Negative feedback may be employed. A capacitor C may be connected to the collector to smooth out the blocking half-cycle by augmenting the collector-emitter capacitance.
Patent GB-1020793-A (GB)
Title: Improvements in or relating to a miniature electric motor
IPC: H02K5/14
Filed: 1964-01-21
Abstract: 1,020,793. Brush holders for electric motors. T. MABUCHI. Jan. 21, 1964 [April 22, 1963 (2)], No. 2560/64. Heading H2A. A miniature electric motor has an insulation cover-plate 2 on which is mounted with a resilient deformation the base portion of a resilient brush holder 1c which is secured to the plate wholly or largely by the resilient recovery force of the base portion acting on projections from the plate. As shown, the projections are pins 21 ... 23. of which the middle one 22 is either stepped to receive a speed nut 3 or flanged by heat treatment to retain the brush holder. The projections alternatively may define either straight or arcuate grooves, and the brush holder has fixed to it the brush and a terminal tag which projects through the plate to the motor exterior.
Patent GB-1340637-A (GB)
Title: Dibenzocycloheptadioxolan derivatives
IPC: C07D317/70
Filed: 1972-01-19
Abstract: 1340637 Dibenzocycloheptadioxolane derivatives RICHARDSON-MERRELL SpA 19 Jan 1972 [5 Feb 1971 4 Aug 1971] 2588/72 Heading C2C  Novel compounds of the Formula (I) where X is >C=O or >CHOH; R and R 1  are hydrogen; R 2  is hydrogen or alkyl; R 3  is dialkylamine, pyrrolidine, piperidine, C-alkylpiperidine, C-dialkylaminopiperidine, C-carbalkoxypiperidine, hexamethyleneimine, 3-azabicyclo-[3,2,2]-nonane, morpholine, piperazine, N<SP>1</SP>-alkylpiperazine, N<SP>1</SP>-hydroxyalkylpiperazine, N<SP>1</SP> - phenylpiperazine, N<SP>1</SP> - benzylpiperazine, N<SP>1</SP> - carbalkoxypiperazine, wherein the point of attachment of the heterocyclic radical is through the N atom; R 4  is H, alkyl or phenyl; n is 0, 1 or 2; may be obtained by reacting a halogen compound of the formula (III) wherein X is >C=O; and halogen means chlorine or bromine, with a secondary amine HR 3  and optionally reducing the product to a compound in which X is >CHOH using NaBH 4  or LiAlH 4 . Pharmaceutical compositions having antiinflammatory or antispastic activity comprise compounds of Formula I above together with a pharmaceutically acceptable carrier in forms suitable for oral or parenteral administration.
Patent GB-166861-A (GB)
Title: A new or improved case for cigarette boxes
IPC: B65D5/38
Filed: 1921-01-20
Abstract: 166,861. Gray, A. J. Jan. 20, 1921. Drawer-and-shell cases; cases made from special blanks.-An open-ended holder or case for a drawer-and-shell cigarette packet is made. from a blank of metal or other rigid material, assembled by soldering or other suitable means. The shoulders 7 flanging the finger-opening 13 may be shaped as shown, or may be made wider and formed with curved edges to afford a smaller lozenge-shaped opening. One or more inwardlyprojecting edges or shoulders may be provided at the open end 11 to form stops for preventing the outer part or shell of the packet from being pushed out accidentally along with the drawer. A circular opening for showing the trade-mark &c. on the shell of the cigarette-packet may be made in the top 4 of the case.
Patent GB-405960-A (GB)
Title: Improvements in or relating to variable speed gearing
IPC: F16D49/16
Filed: 1932-05-05
Abstract: 405,960. Controlling change speed gearing. WILSON, A. G., 23, Queen Anne's Gate, London. May 5, 1932, No. 2885/34. Divided on 405,664. [Class 80 (ii).] Relates to means for braking and holding stationary reaction drums in change-speed epicyclic gearing especially of the Wilson type and as applied to vehicles. Brake shoes 53 are supported on the ends of levers 57 pivoted at a distance from the periphery of the drum 1 to be braked less than the length of the levers so that the shoes 53 jam or stub against the drum with effective stopping action. A balanced braking is applied by admitting fluid under pressure from the same source behind pistons 54 connected to the levers 57 severally by rods 56. Thus when a control cam 50 is turned to the position shown, liquid or gas under pressure, or suction, at a supply pipe 51 is admitted simultaneously by two pipes 44 to cylinders 55 in which the pistons 54 slide. To free the drum 1, the cam 50 is turned back upon which a spring 48 thrusts a slide valve 46 to the left so as to connect the pipes 44 to exhaust at 52. Specifications 164,042, [Class 80 (ii), Gearing, Variablespeed &c.], 220,021, [Class 103 (i), Brakes, &c.], 309,425, 312,128, 328,660, [all in Class 80 (ii), Gearing, Variable-speed &c.], 329,277, [Class 103 (i), Brakes &c.], and 370,442 are referred to.
Patent GB-778646-A (GB)
Title: Improvements in or relating to fuel feed systems for automobile engines
IPC: F02B33/00
Filed: 1956-01-31
Abstract: 778,646. Mixing and pumping charge; regulating. MERCER, A. C. Jan. 31, 1956, No. 3007/56. Classes 7 (2) and 7 (6). A centrifugal fan 1 having flanges 5, 8 for connection between a carburetter 6 and the inlet manifold of a vehicle engine is driven by an electric motor 2 the speed of which increases automatically with engine throttle opening increase, the motor 2 being for this purpose in circuit with the vehicle battery via a rheostat the control arm of which is adjustably linked to the throttle control e.g. to initiate fan operation at any desired throttle opening. The fan 1 has curved blades running parallel to its axis.
Patent GB-191969-A (GB)
Title: Improvements in and relating to calipers, dividers, compasses and the like
IPC: G01B3/16
Filed: 1922-02-02
Abstract: 191,969. Brown, P. H. Feb. 2, 1922. Linear dimension gauges.- The legs of callipers, dividers, and the like are provided with extension members A<1>, B<1>, remote from the measuring- point, one of which carries an arm C with a plurality of graduated quadrants D with full-size and enlarged scales adapted to be read against corresponding indexes on the other member. The quadrants, which are provided with stops H, are guided by clips F and may be held in set position by screws G.
Patent GB-377953-A (GB)
Title: A watch or clock with a device for indicating the day of the month
IPC: G04B19/253
Filed: 1931-01-30
Abstract: 377,953. Calendar clocks. LYONS, C., (trading as VERTEX WATCH CO.), 37, Hatton Garden, London.-(Assignee of Graef & Co. ; La Chaux de Fonds, Switzerland.) Jan. 30, 1931, No. 3092. Convention date, Jan. 31, 1930. Void [Published under Sect. 91 of the Acts]. [Class 106 (iv).] A clock or other time-piece is combined with a date indicator located behind the dial and bearing a succession of date figures viewable through an aperture in the dial means being provided to drive the indicator from the clock, &c. movement. As shown applied to a wrist watch the hour hand spindle 11, Fig. 1, has secured thereto a pinion 12 which engages a pinion 13 of double the size on an axis 14 ; this latter pinion carries a pin 15 which co-operates with a toothed wheel 16 rotatable on the spindle 11 and to which is attached a disc 10 bearing a circumferential row of date figures. The wheel 16 is advanced a tooth once every twenty-four hours and over-running of the wheel is prevented by a detent pawl 17. The current date numeral as shown in Fig. 2, is exposed through an aperture 19 in the dial 18.
Patent GB-206063-A (GB)
Title: Improvements in and connected with ships' screw propellers
IPC: B63H1/28
Filed: 1923-02-02
Abstract: 206,063. Kucharski, W. Feb. 2, 1923. Screw propellers.-A ships screw propeller is provided with two fixed guide members without casings, one in advance and the other in the rear of the propeller. Specifications 27287/13 and 140,082 are referred to.
Patent GB-1503061-A (GB)
Title: Castor
IPC: B60B33/04
Filed: 1976-01-28
Abstract: 1503061 Castors HOMA CASTORS Ltd 18 Nov 1976 [28 Jan 1976] 03201/76 Headings A4U A castor for furniture trolleys, heated food conveyers or like articles comprises an inner fork 14 having rotatably mounted on it a wheel 28, an outer fork 10 pivotally connected at 18 to the inner fork 14 and a compression spring 22 disposed between the forks, the fork 10 carrying a vertical stem 12 rotatably mounted on bearings 38, 40 in a mounting component 42 having a fixing flange 44 for connection to an article whereby the part of the component 42 above the flange 44 lies within the article. The forks 10, 14 and component 42 are of cast aluminium, and the spring 22 is mounted at one end in a recess 24 in the fork 10 and at the other end on a projection 16 on the fork 14, a stop pin 26 on the fork 10 being engageable with the fork 14 to limit pivoting of the fork 14 away from the fork 10 due to the bias of the spring 22. The wheel 28 comprises a plastics former 34 mounted on an axle 30 by bearings 36 and carrying a resilient tyre 37. The component 42 includes bearing seals 48, and 54 to prevent ingress of dirt.
Patent GB-571493-A (GB)
Title: Improvements in fabric winding apparatus
IPC: B65H23/02
Filed: 1944-02-22
Abstract: 571.493. Winding fabrics. BRITISH CELANESE, Ltd. Feb. 22, 1944, No. 3276. Convention date, Feb. 24, 1943. [Class 42 (ii)] A fabric winding apparatus comprises a guide roll 4 adapted to be driven by the fabric passing over it and to guide the fabric to a take-up roll, and means actuated by the rotation of the roll 4 angularly oscillating the axis of that roll. The stub shaft 17' of the roll 4 is carried in a self-aligning bearing 18 fixed to the machine frame, while the stub shaft 17 of the roll 4 carries a worm or skew gear 22 meshing with a worm wheel or another skew gear 23 carried by a shaft 24 rotating in bearings in a yoke 21. Also attached to shaft 24 are crank discs 25 to which links 26 are pivoted, the links 26 being pivotally carried by a bracket 27 attached to the machine frame. The fabric is thus wound on to the take up roll, which is positively driven, so that the selvedges are arranged in staggered relationship. Specification 559,066 is referred to.
Patent GB-1202821-A (GB)
Title: Process for the preparation of triacetin
Inventor: HILLMAN MELVILLE ERNEST DOUGLA
IPC: C07C69/18
Filed: 1969-01-21
Abstract: 1,202,821. Triacetin preparation. W. R. GRACE & CO. 2] Jan., 1969 [11 April, 1968], No. 3342/69. Heading C2C. Triacetin is prepared by reacting a liquid phase comprising allyl acetate, acetic acid and acetic anhydride with a gaseous mixture consisting essentially of free oxygen and an inert gas in the presence of a catalyst consisting essentially of (i) acetate ions, (ii) lithium ions, (iii) cupric ions, (iv) chloride ions and (v) ions of one of the group VIII noble metals at a temperature of 25-200‹ C. under a pressure of 1-500 atmospheres absolute.  Reference has been directed by the Comptroller to Specifications 987,278 and 1,140,105.
Patent GB-126594-A (GB)
Title: Improvements in Rotary Engines.
Inventor: MCDERMOTT PERCIVAL JOHN
IPC: F01C1/16
Filed: 1919-02-11
Abstract: 126,594. McDermott, P. J. Feb. 11, 1919. Movable-abutment type; back-pressure, reducing; valve-gear.-In a reversible rotary engine of the type comprising intermeshing gear-wheel pistons a, b having helical teeth, which may be divided into oppositely disposed adjacent sections as shown in Fig. 1, the inlet passages for the motive fluid are adapted to serve relief outlets when reversing. Valves h, h<1>, i, i<1> are cperated so that motive fluid from ports m is delivered through inlets c, c<1> for one direction of working and through inlets d, d<1> for reversing, exhaust taking place through outlets c, c<1>. A port f or g leading to the atmosphere is uncovered hy the valve, which for the moment is closing the steam port m, so that the passages c, c<1> or d, d<1>, which are not in use for the admission of motive fluid, act as relief ducts for the escape of compressed fluid on the side of the intermeshed teeth opposite to the admission side. The passages c<1>, d<1> may be dispensed with.
Patent GB-855405-A (GB)
Title: Improvements in the construction of sewing machines
IPC: D05B73/00
Filed: 1958-02-03
Abstract: 855,405. Sewing machines. LESLIE, 1. A. Jan. 5, 1959 [Feb. 3, 1958], No. 3393/58. Class 112 In a sewing machine, self-contained units A, B and C containing respectively the needle-driving, work-feeding and main driving mechanisms, are removably mounted on the frame I of the machine. Frame 1 is U-shaped, the upper arm 2 being open at the front to receive a boss 7 on unit A within a rubber bush 11 carried by arm 2. The lower arm 3 has a channel-shaped front portion 18 containing a rubber lining 16 to receive a trough-like casing 12 of unit B, the upper part of portion 18 being closed by the cloth plate 17. Unit C contains an electric motor 20 which drives pulleys 21 and 22 via a belt 23. Unit C seats in a rubber lining 29 at the open rear end of frame 1. A shaft 24 carrying pulley 21 is formed with a socket 25 which receives a coupling key 9 on a shaft 8 projecting from unit A. A shaft 26 carrying pulley 22 is formed with a socket 27 receiving a coupling key 14 on a shaft 13 projecting from unit B.