baber/WOPTO huggingface dataset:
Patent GB-1530367-A (GB)
Title: Artificial tooth crown
IPC: A61C5/77
Filed: 1976-07-21
Abstract: 1530367 Coated bath crown SUMITOMO CHEMICAL CO Ltd 21 July 1976 [21 July 1975 22 July 1975] 30454/76 Heading B2E An artificial bath crown is prepared by thermally spraying, e.g. by plasma spraying, a bonding agent, e.g. Mo, Ta, Nb, Ni-Cr-Al alloy or Ni-Al alloy on to a base of a dentally acceptable metal. A layer of a ceramic is thermally sprayed on to the bonding layer and a dentally acceptable porcelain layer is formed and fused as the outermost layer. The ceramic may be ZrO 2  or Al 2 O 3 . The bonding layer may be sprayed with a mixture of bonding agent and ceramic before applying the ceramic layer.
Patent GB-1112039-A (GB)
Title: Organosilicon compounds and their preparation
Inventor: GUINET PAUL ALFRED EUGENE
IPC: C08J9/00
Filed: 1965-07-19
Abstract: A polymer of the formula <FORM:1112039/C3/1> wherein each R1 and R2 is a lower alkyl, cycloalkyl of 5 or 6 C atoms, phenyl, (lower) alkylphenyl or phenyl (lower) alkyl radical, n is an integer from 2 to 700, q is 0, 1, 2 or 3, and each R3O- is of the formula R4O-(-CxH2xO)y-, in which R4 is lower alkyl, x is 2, 3 or 4 and y is a positive integer, the various (CxH2xO) radicals being the same or different, is made by reacting a siloxane of the formula <FORM:1112039/C3/2> with the diether of a mono- or poly-alkyleneglycol containing a terminal -CH=CH2 group, in the presence of a Pt catalyst. The monoalkylene-glycol diether, when used, is preferably employed in an amount of 0.1-0.5 mol per mol of polyalkylene-glycol diether.  The Pt catalyst may be in the form of the metal per se on a support, H2PtCl6 or a Pt-olefin complex.  The reaction is preferably effected at 50 DEG  to 200 DEG  C. and in a diluent having a reflux temp. in this range.  In typical Examples, a polyethylene glycol diether of the average formula CH2=CH(OCH2CH2)12OC4H9 was reacted in the above manner with (3) <FORM:1112039/C3/3> and (4) <FORM:1112039/C3/4> to yield the desired polymers. Uses.-As surfactants in making polyurethane foams. Tolylene diisocyanate is incorporated with stirring into a mixture of a polypropylenetriol, triethylenediamine, stannous octoate, water and the product of Example 5, to yield a polyurethane foam. Reference has been directed by the Comptroller to Specification 916,561.
Patent GB-763412-A (GB)
Title: Improvements in or relating to heat insulating elements
Inventor: DELANEY CYRIL TERENCE
IPC: F16L59/02
Filed: 1954-10-25
Abstract: 763,412. Welding by pressure. GALLAY, Ltd. June 24, 1955 [Oct. 25, 1954], No. 30753/54. Class 83 (4). [Also in Groups X and XIII] To facilitate welding of a stainless steel envelope, i.e. plates 11, 12, and angle-section members 16 of a heat-insulating element (see Group XIII), a strip 19 is welded inside each member 16 before the envelope is filled with refractory fibre 14. The edge of the strip is first bent outwards at right-angles so that an edge 18 of the plate 11 may be superimposed on it, Fig. 4 (not shown), and the two edges are then clamped between the elements of a welding tool. The edges 18, 20 are finally turned down as shown and welded without clamping to the members 16.
Patent GB-752542-A (GB)
Title: Improvements in and relating to precision balances such as analytical balances
IPC: G01G23/32
Filed: 1954-10-26
Abstract: 752,542. Weighing apparatus. CLESS, O. E. Oct. 26, 1954 [Oct. 29, 1953], No. 30820/54. Class 143 A balance has its deflection indicated by the optical projection of a micro-scale on to a screen which carries a 100 division comparison scale, operating similarly to a vernier scale, to allow weighing to 4 places of decimals, there being only one dividing line of the micro-scale visible on the comparison scale at any instant. The pointer 24 (Fig. 1), attached to beam 22, carries a micro-scale 1, with dividing lines 10 (Fig. 2), whose image is projected, by lens 4 and mirrors (or prisms) 5 and 6, on to an opaque ground glass screen 7, having a, window 9 and a comparison scale 8 (Fig. 3), with transparent numerals and dividing lines. Transparent numerals 11 (Fig. 2), on scale 1, give the tens and hundreds of milligrams in window 9, while transparent recesses 12 allow one numeral of the vertical row on scale 8 to be wholly visible and give the unit milligrams. The one dividing line of scale 1 visible on scale 8 gives the tenths of a milligram at the point where it falls between two of the black squares of the comparison scale 8. A transparent window 13 may be provided in which higher weight values laid on automatically or by hand are indicated; in the former case, a knob external to the casing allows positioning of the weight on the balance arm, and a corresponding indication in the window.
Patent GB-649805-A (GB)
Title: Improvements in or relating to side cars for bicycles
IPC: B62K27/02
Filed: 1948-11-27
Abstract: 649,805. Vehicle undercarriages. HILL, G. B. Nov. 27,1948, No. 30826. [Class 108(ii)] A side car for use with bicycles has one or more wheels out of contact with the ground and another wheel which can either be lowered into contact with the ground for side car use or raised to the level of the other wheels so enabling the side car to be detached and used as a separate vehicle or perambulator. The adjustable wheel comprises a fork 3, fixed to the side car body, the limbs of which comprise a pair of lugs 7 to which is pivoted the limbs of a forked hand lever 6. The wheel axle 4 is journalled in the forked lever 6 and by raising or lowering the lever the vertical position of the wheel is adjusted, the axle riding in slots 5 in the wheel fork and being secured in the desired position by wing nuts 13. A locking device for ensuring that the wheel cannot move from its selected position comprises a vertical bar 8 pivoted at its lower end to one limb of the forked lever 6, and carrying at its upper end a locking pin 10 which can be screwed into either of a pair of threaded holes 11 in the mounting bracket. The vehicle body may be provided with a handle which is folded down when used as a side car and which is raised when the body is used as a separate vehicle; the handle may be interconnected with the wheel-operating lever 6 so that when the handle is folded down the wheel is lowered.
Patent GB-619676-A (GB)
Title: Improvements in machines for the continuous cooling and casting of liquid materials into solid slab form
IPC: B29C48/06
Filed: 1945-11-19
Abstract: 619,676. Continuous casting machines. BROADBENT, D. S. Nov. 19, 1945, No. 30971. [Class 83 (i)] [Also in Group V] A machine for casting continuous slabs of metal &c. comprises four endless travelling bands 2-5 of steel or other flexible material, the rollers 6 on which the bands 3, 5 run being adjustable relatively to each other by screws 7, while the roller on which the bands 2, 4 run are mounted on springs to press these bands against the edges of the bands 3, 5. Liquid metal &c. is fed between the bands by a pipe or shoot and is cooled while passing through the machine by air or water jets from the pipes 10, the metal emerging as a continuous solid slab. The position of the bands 3, 5 is adjusted to maintain pressure on the material as it solidifies. Specifications 450,920 and 565,725, [both in Group V], are referred to.
Patent GB-929748-A (GB)
Title: Apparatus for performing fractional distillation in a vacuum
IPC: B23D65/00
Filed: 1960-09-09
Abstract: <PICT:0929748/III/1> <PICT:0929748/III/2> In a vacuum still comprising an evaporating surface 12 surrounding a central condenser 14, and a rotary perforated member 2 mounted between the evaporating surface and the condenser, means are provided to prevent liquid which collects on the rotary member from being thrown back on to the evaporating surface.  In the apparatus shown, the cross-section of the rotary member is a spiral; and the liquid is intercepted by a trough 32 at the outer terminal edge of the spiral.  The evaporating surface 12 is heated by steam-jacket 17.  The distilland is introduced on to the upper edge of the hot surface via pipe 11 and dished-plate 3 which has perforations 31.  The distilland is distributed over the hot surface by brushes 38 fitted to the external edge of trough 32. The brushes may be made of synthetic resin.  Some of the liquid evaporates, and the vapours first condense on the outside surface of the rotary member 2; the condensate passes through perforations 13 on to the inside surface from which some of it reevaporates. The liquid which finally condenses on condenser 14 runs down and collects in container 15.  The liquid which does not evaporate from the rotary member collects in trough 32 and runs down into chamber 33; a proportion of this liquid may if desired be pumped back to the feed-pipe 11.  The liquid-residue which runs off the bottom of the evaporator surface is withdrawn through outlet 24. In a modified form of still, the condensate on the rotary member is prevented from being sprayed on to the evaporator by a series of stationary sheet-metal baffles.  Specification 929,747 is referred to.
Patent GB-211217-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B1/12
Filed: 1922-11-14
Abstract: 211,217. Kemp, E. Nov. 14, 1922. Spokes, securing and adjusting.-Pins 4, 5 connect tubular spokes 3 to the hub and felloe of a wheel respectively, the pins being adapted to allow limited radial movement between the spokes and the hub arid felloe. The spokes are cupped at their ends to form compartments 7 which receive annular resilient cushions 8 of rubber or the like. Discs 10 fit over the cushions 8 and are slidable in the compartments 7, extending slightly beyond the open ends of the compartments.
Patent GB-1126378-A (GB)
Title: Improvements in or relating to time division multiplex telecommunication exchange systems
IPC: H04L25/03
Filed: 1966-07-12
Abstract: 1,126,378. Loading lines. SIEMENS A.G. 12 July, 1966 [13 July, 1965], No. 31201/66. Heading H4R. The variation of resistance with frequency due to skin effect of a line used in a time division multiplex exchange system is compensated or reduced by inserting a parallel connected capacitance and resistance circuits in series in the line. A method of calculating and/or adjusting the values of the compensating circuits is described involving feeding a current pulse to the line from a source matched to the line with the far end of the line short circuited. The value of the compensation required may be calculated from the rate of delay of the waveform after the switching off transient has been reflected from the S/C end of the line, or the circuits may be adjusted to minimize the decay time of the transient.
Patent GB-1445845-A (GB)
Title: Halopenam and halcepham compounds and the preparation thereof
IPC: C07D501/04
Filed: 1973-06-29
Abstract: 1445845 Silylated penicillins and cephalosporins SHIONOGI & CO Ltd 29 June 1973 [29 June 1972 14 Nov 1972] 31209/73 Heading C3S [Also in Division C2] Trimethylsilyl - 2# - chloromethyl - 2α- methyl - 6# - (2,2,2 - trichloroethoxycarbonylamino)penam-3α-carboxylate is prepared by reacting trimethylsilyl - 2,2 - dimethyl - 6# - (2,2,2- trichloroethoxycarbonylamino)penam- 3α - carboxylate 1-oxide with benzoyl chloride and pyridine in toluene. Trimethylsilyl-3-methyl- 7# - phenoxyacetamido - 3 - cephem - 4 - carboxylate is prepared by heating trimethylsilyl- 3# - chloro - 3α - methyl - 7# - phenoxyacetamido-cepham-4α-carboxylate in dimethyl sulphoxide.
Patent GB-428229-A (GB)
Title: Improvements in or relating to closures for tubes, bottles or like containers for fluid material
IPC: B65D47/30
Filed: 1933-11-09
Abstract: 428,229. Closures for collapsable tubes. REST, J., 9, Raleigh Gardens, Brixton Hill, London. Nov. 9, 1933, No. 31259. [Class 125 (iii)] A closure for a collapsable tube &c., comprises a ball valve d, held in a ductile socket b which covers more than half the circumference of the ball and closes both ends of the passage e when the valve is in the closed position. A washer g is disposed in a recess under the valve. The valve may be barrel shaped, and may carry an opening projection d<1>. In a modification the device is adapted for use with bottles. Specification 9105/08, [Class 125], is referred to.
Patent GB-283707-A (GB)
Title: Improvements in and connected with the construction of golf balls
IPC: A63B37/00
Filed: 1926-12-10
Abstract: 283,707. Warren, E. B. Dec. 10, 1926. Balls.-A golf ball comprises a core having a filling of a solution of a tungsten compound, for example, a solution of sodium meta-tungstate or cadmium boro-tungstate. A suitable solution may be obtained by acting upon a solution of sodium tungstate by boracic acid and removing the sodium polyborates by fractional crystallization. Solid materials such as starch or gums may be added to the solutions to produce viscous or jellylike cores.
Patent GB-880890-A (GB)
Title: Improvements in or relating to a window envelope-making machine
IPC: B31B160/10
Filed: 1959-09-15
Abstract: 880,890. Cutting apparatus. WINKLER, R., and DUNNEBIER, K. Sept. 15, 1959 [Feb. 5, 1958], No. 31357/59. Class 31 (1). [Also in Groups XVI and XVII] Relates to window envelope making machines (see Group XVII) and comprises a device wherein a carrier can be moved to feed in a new web of window making material and wherein the old web is automatically severed. A knife 42 projects from a piston 41 in a tube 40 which is slotted longitudinally, to allow the knife to project, and is inoperative when the piston is held at the end of the tube, against the action of a spring 44 therein, by a latch which comprises a member 47 which enters a lateral slot 46 in the piston through a registering slot in the wall of the tube. The rotation of a hand lever 37 causes a pin 49 on a bracket 36 to move a bar 48 in a direction to turn the latch 47 about a pivot 47<SP>1</SP> so that it leaves the registering slots and releases the piston 41 and knife 42. The old web is led across the slot in the tube and is therefore severed when the spring 44 causes the knife to traverse the slot.
Patent GB-1111019-A (GB)
Title: Improvements in and relating to grinding apparatus
IPC: B26D1/38
Filed: 1965-07-13
Abstract: <PICT:1111019/C3/1> <PICT:1111019/C3/2> A suspension of an organic polymer, e.g. polytetrafluoroethylene, in a liquid medium, is ground by means of an apparatus comprising a vessel 1 for the suspension and a driven rotor 3 carrying vertical blades co-operable with the cutting edges 7 of helicoidally-arranged slots in a cylindrical ring 2 to the upper and lower edges of which are fixed two truncated cone-shaped conduits 4 connected to each other by vertical plates 5 which act as baffles to continuously feed the suspension into the cutting zone.  The polymer is from 5 to 10% by weight with respect to the suspending liquid.  For polytetrafluoroethylene, the rotor is driven at a speed between 900 and 2100 r.p.m., preferably 1200 r.p.m. Examples are described.
Patent GB-862161-A (GB)
Title: Improved combined clutch and expanding pulley
IPC: F16H61/662
Filed: 1958-10-02
Abstract: 862,161. Expanding-wheel gear; friction clutches. ATELIERS DE LA MOTOBECANE. Oct. 2, 1958 [Oct. 2, 1957], No. 31495/58. Addition to 753,117. Class 80 (2). Two centrifugally-engaged friction clutches in parallel with each other are arranged in series with an expanding pulley controlled centrifugally to provide a variable ratio drive for an autocycle, one of the friction clutches being engaged when the autocycle is pushed to start the motor, the other clutch being engaged when with the motor started but the autocycle stationary, the motor is speeded up for the autocycle to move off. As shown, a motor shaft 2 carries rotatably the two flanges 3, 4 of an expanding pulley which transmits drive through a V-belt 5 to the rear wheel (not shown) of an autocycle. To start the motor, the autocycle is pushed so that the belt 5 drives the pulley flange 4 and a sleeve 14 fast therewith carrying a plate 13. Weights 10<SP>1</SP>, pivoted upon a plate 12 fast with the plate 13, are accordingly moved radially outwards by centrifugal force to act upon the ends of friction shoes 10, pivoting about pins 11 on the plate 12, and engage the shoes with a rim 9 carried by a disc 8 secured to the motor shaft 2, which is thereby rotated to start the motor. If the motor has been started but the autocycle is stationary, increasing the speed of the motor causes friction segments 17 mounted upon the outer periphery of the rim 9 to move radially outwards under centrifugal force to engage the inner periphery of a drum 16, rigid with the plate 13, the sleeve 14 and the pulley flange 4, to drive through the belt 5 to the rear wheel of the autocycle. The pulley flange 3 is secured to the sleeve 14, but the pulley flange 4 is movable axially against the tension of the belt 5 by balls 15 moved radially outwards with increasing motor speed by centrifugal force, to establish a higher gear ratio. The balls 15 engage a plate 18 of a relatively hard metal, the drum 16 &c., being stamped from a malleable metal. Reference has been directed by the Comptroller to Specification 798,357.
Patent GB-1011131-A (GB)
Title: Machine for treating vegetable plants
Inventor: BICKNELL NORMAN WALTER
IPC: A23N15/01
Filed: 1961-09-01
Abstract: 1,011,131. Removing Brussels sprouts from stalks. UNILEVER Ltd. Aug. 17, 1962 [Sept. 1, 1961], No. 31603/61. Heading A4C. A machine for removing Brussels sprouts from their stalks comprises a blade 14 rotated about a first axis xx along which the plant is passed, the blade 14 being pivoted about a second axis transverse to the first axis xx and the position of the blade 14 being determined by the stalk of the plant being passed along the first axis xx. An electric motor simultaneously rotates a table 5 carrying blades 14 and contra-rotates spiked, spring urged rollers 10, 11 acting as drawing means for plants fed along the axis xx into the machine through a funnel 2. Each of three blades 14 having curved, serrated cutting edges is carried on an arm 17 pivoted at 18 to a swinging arm 19 which is in turn pivoted 23 to the table 5. Springs 20 and 24 respectively urge the blade 14 about the pivot 18 and the swinging arm 19 inwardly about the pivot 23. The blades 14 when rotated form a funnel for receiving the leading end of the plant stalk which engages the trailing edges 26 of the blades thereby to pivot the blades 14 and bring the cutting edge inwards to sever the sprouts. A further blade or blades may be provided which rotates at a greater radius than the first mentioned blade, the arrangement being such that the further blade severs the sprouts and the first mentioned blade(s) sever the butts. A safety guard 3 is provided. Specification 1,010,953 is referred to.
Patent GB-162264-A (GB)
Title: Improvements in and relating to magneto-electric machines
IPC: H02K21/38
Filed: 1920-11-09
Abstract: 162,264. Bosch Akt.-Ges., R. April 22, 1920, [Convention date]. Inductor machines; magneto-electric machetes.- Fixed or revoluble sleeves for ignition magnetos are made of laminated iron segments with strengthening rings e, Figs. 1 and 2, preferably of non-magnetic material and the distance between the rings is preferably at least as great as the width of the armature winding. Fig. 1 shows a sleeve having segments a between end rings c held together by bolts b and having cutaway parts d. As shown in Fig. 3, the external parts f may be of solid magnetic material. The sleeves mav be used as pole-rings in onepiece casings so that where the extensions of the poles are unsymmetrical the mag neto can be assembled for either direction of rotation by turning the sleeve through 180‹.
Patent GB-929996-A (GB)
Title: Improvements in or relating to drum driers
IPC: F26B13/16
Filed: 1959-09-17
Abstract: 929,996. Sieve drum driers. H. HAAS. Sept. 17, 1959 [Sept. 20, 1958], No. 31666/59. Class 34 (1). A drum sieve drier having cover plates in each of the drums comprises successive drums of large and small diameter, the spacing of successive large diameter drums being not more than the diameter of the small diameter drums. Drying apparatus comprises sieve drums T 1 , T 2  mounted in parallel relationship and of successive large and small diameter. The spacing of the successive large drums being not more than the diameter of the small drums and with the top and bottom of the small drums being located below the centre line and bottom respectively of the large drums. Extractor fans are provided at both ends of each drum and cover plates (not shown) cover the interval periphery of the drum surfaces not covered by the web of material to be dried. A conveyer B is mounted beneath the drums touching the small drums and moving in the same direction to re-apply any dropped material thereto and vacuum nozzles (not shown) beneath the conveyer may be used when the cover plates of the small drums are displaced for cleaning the small drums, and the small drums are adapted to draw dust from the large drums when the fans of the large drums are inoperative.
Patent GB-244780-A (GB)
Title: Improvements in or relating to wheel lathes
IPC: B23B5/34
Filed: 1925-12-16
Abstract: 244,780. Collet & Engelhard Werkzeugmaschinenfabrik Akt.-Ges., (Assignees of Menge, F.). Dec. 16, 1924, [Convention date,]. Lathe drivers.-In a driver for wheellathes the driving members 7, 8, having serrated gripping surfaces for engaging a wheel-rim r are carried by pins rotatably and slidably mounted in bosses 1, 2 secured to the faceplate p. The members carry levers 9 connected by a, link 11 and the pins have helical grooves terminating in flat portions which are engaged by rollers on the ends of radial screws in the bosses 1, 2. In operation, the work is inserted between the lathe centres while the faceplate is stationary and the link 11 occupies a horizontal position as indicated by dotted lines in the Figure. On rotating the face-plate the link lags behind and rotates the driving-members about the axes a, b, thus moving them radially and axially into engagement, with the work. The cutting torque increases the grip, and release is effected by a slight backward movement of the link 11.