baber/WOPTO huggingface dataset:
Patent GB-599544-A (GB)
Title: Improvements in or relating to nail-driving apparatus
IPC: B25C1/00
Filed: 1945-11-13
Abstract: 599,544. Nailing hand-tools. HOTVEDT, L . C. Nov. 13, 1945, No. 30346. [Class 89 (iii)] Modifications in a handtool for nailing as described in Specification 575,421 consist in providing the magazine with a tape of spaced nails from which the magazine is automatically refilled and a catch in the handle of the tool for locking the hammer in the cocked position. The nailpositioning jaws of the tool are pivoted and resilient. Fig. 7 shows the tape 100 carried by the drum 96 rotatably mounted in the carrier 95 which is secured under the body of the tool. The tape 100 passes round a wheel 83 having V-shaped teeth 91 adapted to grip the nails as the tape moves. A knife 105 strips the nails from the tape 100 and urges them into grooves 75 in a rotatable magazine 70. The wheel 83, which draws the tape 100 from the drum 96 and rotates the magazine 70, is provided with a ratchet wheel 82, Fig. 1, secured to it and rotating about the same centre. A bell-crank lever is moved by an arrangement similar to that described in Specification 575,421 for rotating the magazine. In order to fill the magazine originally, the hammer 35 is moved back by the trigger 14, and a catch 43 on the handle 11 engages with a hook 44 on the end of the hammer, retaining it in position until rotation of the knob 45 releases it by means of a leaf-spring 47 and cam surfaces 46, 49. A knob 84 secured to the axle of the feed wheel 83 allows the magazine 70 to be filled by rotating the feed wheel whilst the hammer is drawn back. The nail positioning means at the front of the tool comprises pivoted jaws 53 pressed together by a split spring sleeve 54 having lugs at the forward end which engage grooves in the jaws 53 and other lugs at the rear end of the tool. A guard 111 screwed on the barrel 10 of the tool protects the jaws 53 from damage when the tool is pressed hard against the work.
Patent GB-723399-A (GB)
Title: Single-row radial ball-bearings for supporting a shaft of a machine
IPC: F16C35/06
Filed: 1952-12-01
Abstract: 723,399. Yielding bearing supports. LICENTIA PATENT-VERWALTUNGS GES. Dec. 1, 1952 [Dec. 4, 1951]. No. 30406/52. Class 12 (1). A shaft 1 is supported by single-row radial ball bearings 3, and the inner race 2 of at least one of the bearings 3 is firmly secured on the shaft whilst the outer race 4 is free to move axially in a housing 5, a resilient ring 6 being interposed between a lateral face of the race 4 and the adjacent wall of the casing. The ring 6 may be of rubber or artificial rubber, and may be circular in cross section before being compressed between the ring 4 and the casing. The compression of the ring 6 may be limited by an annular projection in the housing, Fig. 3a, or by a metal ring 7, Fig. 3b. The resilient ring may be U-shaped in cross-section, Fig. 3c.
Patent GB-1078426-A (GB)
Title: Novel 9ª‰,10ª‡-steroids and a process for the manufacture thereof
IPC: B22D37/00
Filed: 1965-07-19
Abstract: The invention comprises 3-keto-4-dehydro-, 3 - keto - 4,6 - bisdehydro-, 3 - keto - 1,4,6 - trisdehydro-, 3 - acyloxy - 3,5 - bisdehydro- and 3-acyloxy-2,4,6-trisdehydro-derivatives of compounds of formula <FORM:1078426/C2/1> and 3-keto-5-dehydro-derivatives of compounds of formula <FORM:1078426/C2/2> wherein -OR1 is a free, esterified or etherified hydroxy group, R2 is a hydrogen atom or a C1- 5 alkyl group, and R is a C1- 5 alkyl group or an aralkyl group, and their preparation by (a) reaction of a 3-keto-D 4-steroid with a cyclic secondary amine to form a 3-enamino-D 3,5-steroid and treating this with an alkylating or aralkylating agent, followed by hydrolysis, (b) reaction of a 3-keto-D 4-steroid with formaldehyde and a thiol to form a 4-thiomethyl ether and subjecting this to reductive desulphurization, or (c) reaction of a 3-keto-D 4-steroid with an alkylating or aralkylating agent in the presence of a proton acceptor, using excess reagent if a 4,4-disubstituted product is desired, followed, if desired, by (d) reduction of a 17-keto-compound to a 17b -hydroxy compound, with partial reoxidation of any 3,17-diol formed, (e) enol acylation or enol ester hydrolysis, or (f) 17-etherification or esterification or ether or ester hydrolysis. The compounds of the invention have anabolic and differential antigonadotrophic activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral, parenteral or rectal administration.
Patent GB-204236-A (GB)
Title: Improvements in and relating to adjustable clamps
IPC: B25B5/10
Filed: 1922-11-08
Abstract: 204,236. Holman, A. van, (Adjustable Clamp Co.). Nov. 8, 1922. Clamps.-A clamp of the kind comprising two jaws 5 operated by a pair of screws 8 passing through openings 9 in the jaws and engaging nuts 6 trunnioned in the jaws, is strengthened and its appearance improved 'by mounting the nuts so that their ends are completely enclosed in the jaws. The nuts are mounted in holes extending from one face of the jaws, the nuts being shorter than the length of the holes, and the holes are closed by wooden plugs 10, Fig. 2. In a modification, Fig. 3, the jaws are made of two similar pieces 11, 12 provided with holes 13 on their inner faces to receive the nuts, the parts 11, 12 being glued together face to face after the nuts are inserted.
Patent GB-1145369-A (GB)
Title: Method of separating polymers from their solutions
Inventor: SCHNORING HILDEGARD
IPC: C08F6/12
Filed: 1966-07-07
Abstract: 1,145,369. Evaporators; separation of solvents from polymers. FARBENFABRIKEN BAYER A.G. 7 July, 1966 [24 July, 1965], No. 30596/66. Heading B1B. A polymer, e.g. polyisoprene or polybutadiene, is separated from admixture in an organic solvent, such as benzene or toluene, by passing the polymer solution or dispersion through a tube 1, having a slit or a series of holes 5 parallel to the axis of the tube, which is arranged eccentrically within a tube 2, while a liquid, preferably water, in which the polymer is not soluble, is passed through tube 2, and steam is directed by slits 12, from lobe tubes 11, onto .the stream of polymer solution and enclosing liquid as it emerges from a longitudinal slit or sees of holes 13 in the tube 2, whereby the solvent is vaporised wand the polymer is obtained in the form of particles in the liquid. Alternatively, the steam may be supplied from an outer tube which surrounds tube 2. The apparatus may be surrounded by a bath of liquid in which the polymer is insoluble. Polyethylene and copolymers of ethylene and vinyl acetate may be freed from solvent by the method, which may also be applied' to copolymers of butadiene and acrylonitrile. Polyurethanes are also referred to. It is stated that an alcohol, ketone, ester or ether may be used as enclosing liquid in place of water.
Patent GB-1436494-A (GB)
Title: Disposable bib and a process and apparatus for forming such bib
IPC: A41B13/10
Filed: 1974-07-10
Abstract: 1436494 Disposable bib NOWOLIN PRODUKTER AB 10 July 1974 30626/74 Heading A3V [Also in Division B5] A disposable bib comprises a thin sheet of plastics material with one or more sheets of tissue paper glued to it along linear zones. The lower part 6 may be folded up and glued along the margins. An incision 7 is provided for the head of the wearer. The bib is made by applying glue to the plastics material while in web form and pressing tissue paper in web form against it using rollers. A heater dries the glue, and the web of laminated material may then be cut to form individual bibs.
Patent GB-1159310-A (GB)
Title: Method of Lighting a Fluidised Bed Furnace
Inventor: DESTY DENIS HENRY
IPC: B01J8/18
Filed: 1967-07-04
Abstract: 1,159,310. Lighting fluidized bed furnaces. BRITISH PETROLEUM CO. Ltd. 29 May, 1968 [4 July, 1967], No. 30663/67. Heading F4B. A fluidized bed furnace is lit by passing a cold methane-air mixture through the cold bed at a flow rate insufficient to fluidize it, the effluent gases being ignited at the top of the bed to burn and form a hot zone which is initially a surface layer. The flow rate chosen is one sufficient to fluidize a hot bed, so that as heat is transferred from the hot zone to the rest of the cold bed, the hot zone, which is fluidized, grows down towards the bottom of the bed until the whole of the bed is fluidized.
Patent GB-486851-A (GB)
Title: Improvements in or relating to sighting telescopes
IPC: G01C1/06
Filed: 1936-12-11
Abstract: 486,851. Telescopes. REASON, R. E., and KAPELLA, Ltd. Dec. 11, 1936, Nos. 30740/36 and 663/38. [Class 97 (i)] In a sighting telescope, particularly for measuring the angular or lateral displacement of a member by observing the displacement of the image of a mark &c. formed by an objective in the telescope, the observing system is provided with means for reversing the displacement of one portion of the image relatively to that of the other portion and means are also provided in the telescope whereby the two portions are brought into superposition or into alignment with one another. Fig. 1 shows a form in which the mark is within the telescope and consists of a slit D illuminated by a lamp C and condenser C<1>. The rays are directed along the axis of the telescope by a thin film E constituting a semi-transparent mirror. The optical distance from the slit to the telescope objective A is equal to the focal length of the objective so that the rays on emerging from the objective are parallel. These rays are received by a mirror F on the member whose angular position is to be measured and are returned through the objective to form an image in the focal plane. In this plane the rays are divided, for example by a pair of segmental lenses G<1>, G<2>, and the two beams pass to an objective H having its principal focus in the plane of the image, and thence through apertures J<1>, J<2> in a screen J to an objective H<1> forming a second image, the beams being recombined at such image by a biprism K and transmitted to an eyepiece K<1>. Between the objectives H, H<1>, one of the beams passes through a reversing prism L<1> and the other beam passes through a glass block L to equalize the ray paths. To bring the two half images into alignment, a prism M displaceable along the axis of the telescope is provided, this prism being provided with a pointer M<1> which indicates on a scale M<2> the displacement of the mirror F. Instead of an auto-collimating telescope as above described, a focusing telescope as in Fig. 3 may be used in conjunction with a sighting mark on the object whose displacement is to be measured. In Fig. 3, the whole of the ray-dividing and observing system is mounted in a tube S which can be moved axially for focusing by a rack S<1> and pinion S<2>. To prevent lateral errors in the focusing movement the tube S is mounted in the tube B in two bearing rings T having sharp-edged recesses T<1>, Fig. 4, constituting a four point support, against which the tube is pressed by springs U acting through balls U<1>. To enable this instrument to be used alternatively as an auto-collimating telescope, a slit D and lamp C may be provided. Specification 430,761 is referred to.
Patent GB-629765-A (GB)
Title: Improvements in or relating to tool parts
IPC: B23B29/06
Filed: 1947-11-20
Abstract: 629,765. Lathe details. SAUNDERS, A. Nov. 20, 1947, No. 30754. [Class 83 (iii)] A tool post assembly  for use with a roller box  work steady, such as described in Specification  545,040, has a tool-  holder portion adapted  to fit into an aperture in  a tool post body, there being a bore in said body opening into said aper ture, said bore being threaded to receive a screw which fits into a threaded recess in the tool-holder portion to adjust it in a direction at right angles to the tool axis, means being provided for holding the screw against axial movement in adjusted position. The tool-post 1 is secured to a roller box by a stud 4 and carries a vertically-adjustable tool-holder portion 6, within which, a tool T of rectangular cross-section is clamped by a screw 9. The holder has an enlarged head portion 8 recessed to guide the holder in the vertical slot of the post. Clamping of the holder is effected by a nut 18 and washer 19, a screw 20 passing through the clamping nut for end adjustment of the tool. A screw 5 partly engages the side of the holder and is used for moving the latter up and down the slot and a pivoted latch 16 may be brought into engagement with a groove in the head of the screw to provide for fine adjustment. Specifications 645,143 and 603,708 also are referred to.
Patent GB-272104-A (GB)
Title: Improved haulage gear for coal cutting machines and the like
IPC: E21C29/10
Filed: 1926-12-04
Abstract: 272,104. Black, W. C. Dec. 4. 1926. Drum or barrel winding-machines.-A haulage gear for a coal cutting machine 1 comprises two or more drums 2, 3 mounted on parallel shafts 4, 5 on the cutter around which a rope 15 anchored to a stationary support at one end is wound in elongated coils when one or each of the drums is rotated. The shaft 5 is provided with eccentric journals 10, one of which can be rotated by worm gearing 12, 13 to move the drum 3 towards or away from the drum 2. Each drum is provided with a groove 17 to accommodate the first coil which may be formed by twisting the end 16, Fig. 2, of the rope. In a modification, the first coil comprises an endless chain to which the end of the rope is fastened. This chain may engage sprocket teeth on the drums.
Patent GB-145355-A (GB)
Title: Improvements in and relating to clutch and brake mechanism
IPC: F16D67/02
Filed: 1919-12-10
Abstract: 145,355. Clark, W., Dawson, G., and Dawson, W. A. Dec. 10, 1919. Actuated or applied by driving-mechanism disengagers; cone and disk; wheels or drums shifted to rub on fixed brake surfaces.-In combined clutch and brake mechanism for use in starting and stopping machinery, a rotary operating-part has screw threads engaging with a stationary member and with a non-rotating sliding sleeve or shaft carrying the driven member. The driven part E, which has flat, conical or grooved faces, is clutched to a driving-part C, carried on a stationary sleeve A<2>, and bruited by a non-rotating part J by carrying the part E on a sleeve D and securing the part J, which has pins K<1>, K<2> engaging an extension M on the frame A, to a rod F, the sleeve and rod being prevented from rotation by a cross pin G and being engaged by screwed parts on a bush B, which is rotated by a spring'or by a lever S connected by links P, P' to arms 0, O<1> on the bush and is also threaded to engage the frame A. The driving-part C may be mounted on the rod F, in which case the driven part E engages the frame A for braking. The rod F may be dispensed with, in which case the part E engages the frame extension M for braking. The screwed parts may be right or left handed, and external or internal, as required.
Patent GB-446291-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/107
Filed: 1934-10-27
Abstract: 446,291. Rotary pumps. LANSER, A., Villa Montet, Corseaux-Vevey, Switzerland. Oct. 27, 1934, No. 30900. Convention date, Oct. 30, 1933. [Class 110 (ii)] The pump comprises a rigid rotor 17, and a stator 18 of rubber, or other resilient material, the co-operating surfaces of rotor and stator being threaded helically, one part having one more thread than the other. As the rotor rotates, the stator is deformed, and fluid is pumped from an inlet 13 to an outlet 11. As shown, the stator is in two parts 19, 20, connected by a web 22, the outer part being supported by a spring 24. In another form, the web 22 may be in the middle of the stator, or the slot, or slots 21 may be dispensed with. The rotor may be made of ebonite or metal.
Patent GB-654816-A (GB)
Title: Ball thrower
IPC: A63B69/40
Filed: 1948-11-30
Abstract: 654,816. Ball projectors. WILSON, A. A. Nov. 30, 18, No. 30992. [Class 132 (ii)] A football- or cricket-ball projector comprises a ball holder a carried on elastic catapult members h the outer ends of which are fixed to clamps i adjustable along uprights t on a wheeled base p to vary the angle of projection. The holder a is releasably hooked on to a clamp g adjustable along a bar b adjustably hinged at e to a longitudinal bar c. Adjustment of the members i, e, g enables the velocity and angle of projection to be varied. To project a ball, it is placed in the holder a hooked to the bar b the latter then being pulled back to tension the catapult which is then released by a trigger connected by a Bowden cable to the connection between the parts a and g.
Patent GB-1157815-A (GB)
Title: Improvements in or relating to a Gear-Cutting Device
Inventor: DENISOV VLADIMIR MIKHAILOVICH
IPC: B23F23/12
Filed: 1966-07-11
Abstract: 1,157,815. Gear-cutting. SPETSIALNOE KONSTRUKTORSKOE BJURO NO. 5. 11 July, 1966, No. 31024/66. Heading B3K. A machine for form-cutting and generating bevel and hypoid gears comprises a spindle 10 carrying a milling or grinding tool C having its own drive 28 and mounted in a cradle 3 containing coaxial drums 13, 15 mounted in a tiltable casing 17. The spindle is mounted in a sleeve 11 axiallyadjustable in a drum 12 which is rotatable in the drum 13 to adjust the angular position of the tool axis. The drum 13 is rotatable in the drum 15 which is adjustable angularly in an eccentric drum 16 to determine the radial setting of the tool axis. To set the tool for cutting a bevel gear, the outer casing 17 is rotated on its angular seating A. In a modification, the drum has a transverse cylindrical or spherical seating 26, Fig. 7. The tool is rotated through change gears and an internal gear 40.
Patent GB-485177-A (GB)
Title: Improvements in and relating to the production of plastic and stereoscopic effects from photographs of all kinds more particularly cinematograph pictures
IPC: G03B35/24
Filed: 1936-11-13
Abstract: 485,177. Projection screens. ETBAUER. T. P. Nov. 13, 1936, No. 31088. [Class 97 (i)] To produce a stereoscopic effect a screen is composed of a number of part screens arranged one behind another and each part screen is built up in the manner of a grating from elements which scatter, reflect or refract light, the screens being so arranged that when viewed from the front they form an uninterrupted surface. As shown, the screens 21, 22, 23, 24 may be in the form of plates of glass, " Cellophane " (Registered Trade Mark), or quartz, and the elements which may be flat, curved, or formed like lenses or prisms can be produced by printing, etching, sand-blasting, engraving, stamping, embossing, casting, or photographic printing. They may be arranged parallel to one another at an inclination to the depth direction, or alternatively inclined to one another. A backing reflector 4 and a grating 5 may be provided. The screen may also be in relief.
Patent GB-411149-A (GB)
Title: Improvements in reciprocating pumps
IPC: F04B49/08
Filed: 1932-11-04
Abstract: 411,149. Reciprocating pumps. WEIR, Ltd., G. & J., and HILLIER, H., Holm Foundry, MACFARLANE, J. C., and MACFARLANE, W. A., Netherlee Road, both in Cathcart, Glasgow. Nov. 4, 1932, No. 31106. [Class 102 (i).] In a reciprocating pump pairs of plungers 1 and 1<a> are driven by two shafts 5 and 5<a> from A.C. induction motors 6 and 6<a> at equal speeds. The pump output is regulated by varying the phase relation of the two shafts by means of D.C. machines 8 and 8<a> directly coupled to the induction motors and with their armatures in opposition. The field strengths of the two D.C. machines are varied by means of a potentiometer 14 with a contact 13 operated by a fluid discharge pressure device 10. This variation makes one D.C. machine a generator and the other a motor which puts extra load on one induction motor and relieves the other, thereby slowing one up and speeding up the other. When the required phase alteration has been effected the speeds of the two induction motors are equalized again by means of the differential gear 20 connected between the two shafts or an electrical device such as a motor or solenoid in the armature circuit of the D.C. machines 8 and 8<a>. In a modified arrangement induction motors of the slip ring type are used, with variable rotor resistances which vary the slip and so effect the phase alteration as before. D.C. machines with variable field resistances may be used alone in place of the induction motors. Specifications 335,932, 336,810, and 337,205, [all in Class 102 (i)], are referred to.
Patent GB-936742-A (GB)
Title: Method of making plain bearings and bearing material for such bearings
Inventor: PRATT GEORGE CHRISTOPHER
IPC: F16C33/00
Filed: 1961-08-29
Abstract: A method of making a bearing or bearing material of polyethylene, lead monoxide and ammonium manganese phosphate comprises the crushing or powdering of the above ingredients in given proportions such that at least 50% of each of the powders will pass through a 200-mesh sieve.  After thorough mixing the combined powder is pressed in a suitable die at a pressure above 2,000 lbs./sq. in. to form short cylinders of initially pressed material.  This material is then broken up and ground to a size capable of passing through a 10-mesh sieve.  The subsequent powdered material is then pressed in a suitable die at a pressure between 2,000 and 20,000 lbs./sq. in., to forms of desired shape. The dies in this pressing operation being preferably maintained at a temperature of between 110 DEG  and 130 DEG C. and the subsequent forms obtained are then sintered in an oven at a temperature between 140 DEG  and 200 DEG C. (preferably about 170 DEG C.).  The components thus obtained may require little or no finishing operations.  Another method may be as described with the exception that the second pressing operation may be at room temperature and at a pressure of 70,000 lbs./sq. in.  The initial pressing and grinding operations tend to improve the homogeneity of the final product and reduces the tendency of components to crack during sintering. Specification 936,741 is referred to.
Patent GB-1018146-A (GB)
Title: Improvements in or relating to suspended ceilings
Inventor: HARRIS PHILIP STUART
IPC: E04B9/04
Filed: 1963-08-07
Abstract: 1,018,146. Suspended ceilings. G. N. HADEN & SONS Ltd. July 17, 1964 [Aug. 7, 1963], No. 31128/63. Heading E1V. A suspended ceiling comprises parallel support members 10, formed with equallyspaced apertures 11 along them, and laterallycontiguous planks 1 substantially perpendicular to the members 10 and having an effective width which is equal to or a simple multiple of the interval between apertures 11, each plank 1 having closely-spaced apertures 6 along it at or near its centre line, the planks 1 being fixed at intervals to the members 10 by visible fixing means, e.g., screws 12, in registering apertures 6 and 11. The planks are preferably wavy with areas of perforations 8 over the whole of part of the surface. A plank 1 may have a recess 5 along one edge 4 to act as a seating for the other edge 2 of the adjacent plank 1.