baber/WOPTO huggingface dataset:
Patent GB-197618-A (GB)
Title: Improvements in bacon slicing machine platforms
IPC: B26D7/02
Filed: 1922-11-07
Abstract: 197,618. Crimmins, J. Nov. 7, 1922. Cutting slices in succession; holders.- In a meat-table of a slicing-machine, the meat rests on a perforated plate 1 normally spaced from a spiked plate 4 by springs 3. The pressure of the clamping-bar 7 forces the plate 1 downwards, the spikes 6 pass through the holes 2 and enter the meat. The springs 3 are sufficiently strong to raise the plate 1 and disengage the spikes from the meat when the clamping-bar 7 is released. One or more plates 4, hinged to the plate 1, are employed, and the plates 4 rest on the bed-plate.
Patent GB-1057802-A (GB)
Title: Ultrasonic internal flaw detecting apparatus for hot metal
IPC: G01N29/28
Filed: 1963-07-31
Abstract: 1,057,802. Ultrasonic inspection devices. YAWATA IRON & STEEL CO. Ltd. July 31, 1963 [Aug. 13, 1962], No. 30383/63. Heading H4D. In an ultrasonic flawdetection system for inspecting hot metal workpieces, e.g. slabs from a rolling mill, a molten metallic salt or mixture of salts is used as a coupling medium between an ultrasonic probe and the workpiece. In the embodiment of Fig. 1, pulses of acoustic energy are directed towards, and received from, a surface of a workpiece 1 by separate probes 6 including iron, steel or quartz members 4. The probes are heat-protected by water-jackets 5. The molten salt or salt mixture is fed to the workpiece from a heated tank 3. Flow and boundary echoes are observed on oscilloscope, spurious signals due to electrical pick-up between the two probes or to reflections from the side boundaries of members 4 being minimized by inclination of the probes, the use of as large a cross-section as possible for the probes, and by the provision of peripheral grooves on members 4. Examples of salts and salt mixtures, with melting points in the range 150 to 963 C., are given. In alternative embodiments, employing a contact scanning method (Fig. 3, not shown) and a non-contact scanning method (Fig. 4, not shown), the transmitting probe and receiving probe are coupled to opposed faces of the workpiece.
Patent GB-488909-A (GB)
Title: Improvements in and relating to percussion fuzes for projectiles
IPC: F42C1/12
Filed: 1937-11-05
Abstract: 488,909. Projectile fuzes. BIRKIGT, M. Nov. 5, 1937, No. 30408. Convention date, Sept. 28. [Class 9 (i)] Relates to percussion fuzes of the kind in which the primer is fired by the heat of compression of air in a chamber in the nose of the projectile, examples of which are described in Specifications 404,549 and 407,644. According to the invention the chamber 1 in the nose of the projectile is connected at its rear end by a throttle opening 3 to a rear chamber 4 in which the primer 2 is located. The front edge 6 of the chamber 1 is made sharp to ensure the cutting of a round plug in the target. The chamber is closed by a thin cap 7. The throttle opening is closed by centrifugal segments 10 held in place by the bevelled rear edge of a spring urged sleeve 12 until acceleration of discharge has ceased and centrifugal force wedges the segments outwards. A ball bearing may be provided to delay the transmission of rotation to the segments.
Patent GB-1064488-A (GB)
Title: Pulse generating circuit
IPC: H03K3/57
Filed: 1964-08-04
Abstract: 1,064,488. Pulse generating circuits. MOTOROLA Inc. Aug. 4, 1964 [Aug. 19, 1963], No. 30541/64. Headings H3P and H3T. In a circuit of the type in which a charged pulse forming network 31 is discharged into a load 13 so as to generate a pulse, a saturable inductor 30 and R.C. network are provided to form a pedestal before the main pulse. As described, the network 31 and capacitors 25, 26 are charged via an inductor and diode (not shown). When a thyratron or PNPN transistor 35 is triggered, capacitor 25 discharges rapidly via a pulse transformer 12, giving a step V 1  of some 60% of the voltage required to fire the magnetron 10. Capacitor 26 now discharges giving an increasing pre-pulse pedestal A. The network 31 also begins to discharge slowly via inductor 30 until the inductor saturates when the network 31 rapidly discharges in time t 2  equal to twice the transit time of network 31. The pedestal A conditions the magnetron for oscillation in the correct mode during the main pulse at t 2 . The inductor 30 is reset by the charging current or by a bias winding.
Patent GB-1355593-A (GB)
Title: Concrete pressure vessel
IPC: G21C13/06
Filed: 1972-06-29
Abstract: 1355593 Reactor pressure vessels GULF OIL CORP 29 June 1972 [19 July 1971] 30567/72 Heading G6C A nuclear reactor comprises a concrete pressure vessel defining an internal chamber having an access opening normally closed by a removable concrete plug which is locked in the opening by primary retaining means and secondary retaining means which prevent ejection of the plug in the event of failure of the primary retaining means, the secondary retaining means comprising a plurality of interengaged members on the plug and a liner of the access opening to transfer axial forces on the plug to said liner, at least some of the members being displaceable to permit removal and re-insertion of the plug. As shown, the concrete main portion 11 has a top penetration 13 normally closed by plug 16 which is concrete clad with metal. Cooling conduits 61 connected to an external coolant source are provided in the plug. The penetration liner 14 has an upper part 37 against which upper ends of segmental members 75 press via a seating 81, the lower ends of members 75 pressing against a seating 83 on the plug thereby forming a primary plug retention means. Seating 83 is adjustable by means of a wedge mechanism 87, 89. The plug fits in the penetration with clearance to leave a space 17 which allows the plug to experience lateral compressive stress as well as axial stress due to pressure in the vessel. At its upper end, the plug is sealed to the liner by a U-shaped metal seal 18 welded in position. In one embodiment (Fig. 1) a secondary plug retention means 21, provided as a back-up measure to prevent ejection of the plug should the primary retention means fail, comprises peripherally distributed shear blocks 22, 23 respectively on the liner and plug. In one angular position of the plug within the penetration the blocks 22, 23 are vertically aligned and co-operate to prevent raising of the plug; in another angular position, the blocks are out of alignment, allowing removal and re-insertion of the plug. A gas flow-restrictor 98 is provided to span the clearance space 17 between plug and liner to restrict leakage of gas in the event of failure of the seal 18. The restrictor comprises a segmented ring the segments of which project radially from the plug and are spring-biased into contact with the liner. The main vessel portion has an internal metal lining 41 and encloses a high temperature gas (helium) cooled reactor. In another embodiment (Fig. 4) the secondary retention means comprises peripherally distributed socks 101 in the liner and slidable pins 103 in the plug. The latter has a central access well giving access to the inner ends of the pins 103 enabling their engagement by a tool which will rotate the pins thereby causing their extension or retraction by virtue of their having threaded portions 125 mating in threaded collars 127. Alternative embodiments of flow restrictors are described (Figs. 5-9, not shown).
Patent GB-255708-A (GB)
Title: Improvements in and relating to thread trimming devices for sewing machines
IPC: D05B65/00
Filed: 1925-12-03
Abstract: 255,708. Hughes, R. M., (Reece Button Hole Machine Co.). Dec. 3, 1925. Thread-cutters and thread-end holders. -In group-stitching machines having thread-holding and cutting devices which grip the thread at the end of a stitching period and cut the thread both at the end of this period and at the beginning of the next, the threadholder is actuated by the relative movment between the stitchforming mechanism and the work-holder and the cutter by a cam associated with the main cam, or both the threadholder and the cutter are actuated by rockshafts extending through the bed-plate and actuated by levers controlled by a cam associated with the main cam. The thread-holding and cutting devices are carried by the work-holding means and comprise a thread-gripper 9 having a hook 11 and pivoted to the clamp plate 2 and co-operating with a plate 12. Just before the completion of the stitching the arm 9 is moved across the stitching line, and after the completion is swung back to engage the needle thread and draw it on one side, clamping it against the plate 12. The thread-cutter blade 16 is mounted on an arm 17 acted on by a spring 19 and is actuated by means comprising. an arm 21 mounted on a shaft 20 having a second arm 24 engaged by a lever 26 actuated by a cam 30 on the shaft of the main cam 7. The cam 30 is provided with two notches 33, 34 into which a projection 31 on the lever 26 enters at the times when the thread is to be cut, thus allowing the lever 26 to be moved under the influence of a spring 32 actuate the arm 21 and lever 17. The thread-holding device when actuated by the relative movement of the sewing-head and the workholder, as shown in Figs. 1 - - 3, has an extension 36 with a spring-pressed sleeve 37 carrying a foot 39 adapted to engage a projection 40 carried by the head. The foot is allowed to move freely when so engaged while the head is moving in one direction to stitch a buttonhole but when moving in the other direction a stop device couples the foot to the arm 9 and causes it to move to carry the arm across the stitch line. When the stitching mechanism comes to rest and the parts are further moved to buttonhole cutting position the projection 40 is moved away from the foot and allows the arm 9 to swing back under the action of its spring to the position shown in Fig. 3, thereby nipping the thread In the modification shown in Fig. 7. the arm 9 is moved by an arm 44 on a rock-shaft 45 actuated by a lever controlled similarly to the lever 26 by a cam on the main cam shaft. A cutter for the under thread is also described and comprises parts 55, 56 carried by blocks 57, 58 pivoted at 59 and having arms 60, 61 beween which is a cam member 63 mounted on a shaft 64 from which extends a lever 65. The lever 65 is engaged by a spring- stressed lever 69 which is actuated by an arm 72 projecting from the hub 29 of the main cam.
Patent GB-837733-A (GB)
Title: Improvements in or relating to microwave measuring apparatus
IPC: G01R21/00
Filed: 1957-10-01
Abstract: 837,733. Waveguides; variable attenuators. FLEMING, B. Jan. 1, 1959 [Oct. 1, 1957], No. 30743/57. Class 40 (8). [Also in Groups XXXV and XXXVI] Microwave apparatus which may be used as a variable attenuator comprises a waveguide 10, Fig. 1, or other transmission line in which a vane 12 of resistive material is movable. In the case of a rectangular waveguide, vane 12 is parallel to the short side of the guide and is movable perpendicular to the axis of the guide. The position of the vane 12, and hence the proportion of the total power which is absorbed by the vane, is adjusted by a micrometer screw 20. The shape of vane 12 and the adjusting means are modified according to the type of transmission line used. Fig. 10 shows a length of circular waveguide 70 with two end-portions 71 each of which contains a fixed conductive vane 72 at right angles to the required plane of polarization of the transmitted waves. Section 70 contains a resistive vane 73 and is coupled to the end portions 71 by rotatable couplings so that vane 73 may be rotated about the axis of the guide. The attenuation caused by the vane may be varied by altering its temperature by passing a direct current through it. If the D.C. power is much larger than the microwave power, the apparatus can be used as a direct-currentcontrolled attenuator.
Patent GB-763438-A (GB)
Title: Improvements in or relating to explosives
IPC: C06B25/36
Filed: 1952-12-05
Abstract: The invention comprises an explosive consisting of or comprising a trinitroethanol derivative having the grouping C(NO2)3, said derivative being an ester of trinitroethanol with an organic or inorganic acid or a nitrated trinitroethanol ester of said organic acid, or a trinitroethanol derivative of urea or melamine or an ammonia derivative of trinitroethanol, said ester, nitrated ester, or urea, melamine, or ammonia derivative being one which is capable of predetermined detonation and having a ratio of carbon atoms to oxygen atoms of less than 2 : 1.  The explosives may be used either alone or mixed with one or more other explosives and other balance substances (see Group XXI).  In examples: (1) crotonic acid is reacted under reflux with phosphorus pentachloride and when the mixture has cooled trinitroethanol is added and the mixture heated to 50 DEG  C. and after cooling poured into water when the ester [(NO2)3C. C5H7O2] separates as an oil; (2) the chloride or the amide of benzoic acid is reacted with trinitroethanol to yield the trinitroethyl ester of benzoic acid; (3) the product of (2) is nitrated with a mixture of nitric and sulphuric acid at below 40 DEG  C. to yield the trinitroethyl ester of mononitro benzoic acid; (4) adipic acid chloride is reacted with trinitroethanol to yield the dinitroethyl ester of adipic acid; (5) the ditrinitroethyl ester of phthalic acid is obtained from the alcohol and phthalic acid chloride and the ester may be nitrated; (6) nitroform, formaldehyde and ammonia are reacted to form ditrinitroethylamine which is then nitrated to form ditrinitroethyl nitramine; (7) nitroform, formaldehyde and urea are reacted in aqueous solution to form ditrinitroethyl urea; (8) melamine and trinitroethanol are reacted in aqueous solution to form tris (trinitroethyl) melamine; (9) trinitroethanol dissolved in carbon tetrachloride is reacted with phosphorus pentachloride to form trinitroethyl phosphate together with some trinitroethyl chloride; (10) trinitroethyldinitroacetate is obtained by adding trinitroethyl acetate to nitrating acid and then pouring the mixture into ice water.  The stability and explosive characteristics of the various products are described and examples are also given of various mixtures of the products with known explosives (see Group XXI). Other organic acids mentioned are unsaturated dibasic and polybasic acids.  Reference has been directed by the Comptroller to Specifications 698,138 and 729,469.
Patent GB-458208-A (GB)
Title: Improvements in or relating to counter mechanisms
IPC: B67D7/08
Filed: 1935-03-12
Abstract: 458,208. Counting-apparatus. VEEDERROOT, Inc., Sargeant Street, Hartford, Connecticut, U.S.A.-(Assignees of Slye, E. A.) March 12, 1935, No. 30909. Convention date, March 21, 1934. Divided out of 458,178. Drawings to Specification. [Class 106 (i)] In a counting mechanism comprising a set of numeral wheels, transfer-mechanism, and zeroizing means the adjacent numeral wheels are connected together by clutch means and the transfer mechanism is locked against actuation during the resetting to zero operation. The description in the Specification is identical with that of Specification 458,178, but the claims differ. Specification 425,473 also is referred to.
Patent GB-816739-A (GB)
Title: Air heating apparatus
Inventor: KITCHEN JOHN ALFRED
IPC: F24H3/00
Filed: 1956-10-11
Abstract: 816,739. Generating combustion products under pressure. LUCAS (INDUSTRIES) Ltd., J. Oct. 3, 1957 [Oct. 11, 1956], No. 30958/56. Class 51 (1). [Also in Group XIII] Combustion apparatus of the so-called pulsatory type for use in an air heater (see Group XIII) comprises an externally finned combustion chamber a in which an air-fuel mixture is ignited by an electrically-generated spark, the combustion chamber being separated by a flame trap y from a mixing chamber x to which either liquid or gaseous fuel in the form of a mist, spray or vapour and combustion air are admitted intermittently in known manner through valves v, w respectively. The fuel passes to the mixing chamber from a reservoir i and the combustion air is supplied to the chest g by a fan n through a perforated tube p serving as a muffler. Exhaust gases from the combustion chamber pass into an exhaust manifold c and thence into heatexchanger d and enter exhaust manifold f before discharging into a compartment r in which an outlet s for possible condensate is provided, and thence flow through muffler u to waste.
Patent GB-430334-A (GB)
Title: Improvements in or relating to apparatus for treating fabrics
IPC: D06C5/00
Filed: 1933-11-07
Abstract: <PICT:0430334/IV/1> <PICT:0430334/IV/2> <PICT:0430334/IV/3> <PICT:0430334/IV/4> A tubular fabric is dried, bleached, cleaned, &c. by fluid supplied through holes 14 in a pipe 11 to an elongated chamber bounded at the ends by guide rings 20, 21, one or both of which are adjustable, and at the sides by the fabric itself 70 through which the fluid is forced.  The rings 20, 21 are secured by keyhole slots 26 and studs 44 to divided rings 34, 35, clamped on the pipe 11.  Small rings 120 may have concave edges in which the fabric is slidingly held by spring rings 124.  The holes 14 may be replaced by a series of radial tubes 80 which will prevent the exit of steam condensed on the inside of the pipe 11.  The pipe 11 may be connected to more than one supply of treating fluid.  Reference has been directed by the Comptroller to Specifications 298,418, 301,783, and 303,653, [all in Class 15 (i)].
Patent GB-1315674-A (GB)
Title: Sound-insulating materials
IPC: G10K11/16
Filed: 1970-06-25
Abstract: 1315674 Sound insulation E GABBRIELLI 25 June 1970 [25 June 1969] 30986/70 Heading F2X A sound-insulating material comprises viscous natural or synthetic, acoustically non-homogeneous constituents and is enclosed hermetically to avoid evaporation and the taking up of fluid from adjacent constructional parts. The heterogeneity of the viscous constituents can be obtained by the admixture of materials having differing molecular weights, by polymerization to form long-chain molecules, by colloidal suspensions, or by rigid material particles floating in a carrier means. Non-permeable casings of polyethylene can be used. When packed in thin-walled tubular elements, the material may be used as an interlay for insulating floors against impact sound. The material may also be used to fill the space between the double panes of doors and windows to improve the sound insulation.
Patent GB-1204658-A (GB)
Title: Improvements in or relating to infinitely variable friction gearings
Inventor: STEINFELS HELMUT
IPC: F16H15/24
Filed: 1969-06-19
Abstract: 1,204,658. Variable-speed friction gear. H. STEINFELS. 19 June, 1969 [21 June, 1968], No. 31041/69. Heading F2D. In a steplessly variable-speed friction gear comprising an obliquely located cylindricallyshaped idler roller 8 formed in two sections 14, 15, freely journalled on a centre pin 18, bearing against opposed faces of parallel offset driving and driven discs 2, 3 and traversed across the discs by a screwed adjuster 11, 12, attached to the idler roller carrier 9, for ratio change, the idler roller sections 14, 15 are centrally formed with torque-responsive camming surfaces 19- 22 whereby the surface engagement pressure between the roller 8 and discs 2, 3 is automatically varied according to load i.e. torque. As shown, and in Fig. 2 (not shown), caged balls 24 are interposed between the cam surfaces 19- 22 which may be cup-shaped but of a larger radius than that of the balls, the driving and driven discs 2, 3 being formed as hollow conical plates and spring loaded at 7 against the idler roller ends which are rounded as shown at 16, 17 or bevelled as at (46) in Fig. 2. In Fig. 3 (not shown) the caged balls are omitted from between the idler roller camming surfaces which are simply formed as interengaging zig-zag conical serrations (34), the bevelled corners (29-30) of the idler roller engaging flat i.e. planar surfaces of the driving and driven discs (26, 27). In Fig. 4 (not shown) the interengaging cam surfaces between the idler roller sections 2, 3 are formed sinusoidally. Fig. 5 (not shown) illustrates adjustable screwed stops (40, 41) for corerctly locating and guiding the idler roller carrier 9 to prevent lateral deflection thereof in operation.
Patent GB-617337-A (GB)
Title: Photographic projection copying apparatus having different magnifications in two perpendicular directions
IPC: G03B27/68
Filed: 1945-11-20
Abstract: 617,337. Photographic projection-copying apparatus; distorted photographs. KURREIN, M. Nov. 20, 1945, No. 31122. [Classes 97 (i), 98 (i) and 98 (ii)] Photographic projection copying apparatus having different magnifications in two perpendicular directions comprises in combination a light source D, an adjustable plate-carrying frame B, a cylindrical lens system F<1>, F2, an adjustable diaphragm E<1>, E<2>, and a camera objective F interposed between said diaphragm and a light-sensitive photographic plate G housed in a camera and arranged to receive the projected image, said plate when developed and finished being adapted to be mounted in the frame B as the object A to be projected. Instead of a photographic transparency, the object A may be a drawing on tracing paper, or may be replaced by a screen on which the image formed by a profile projection microscope is focused. The whole apparatus may be arranged in a housing H excluding stray light and may be provided with a matt screen. J in front of the lamps D. The application to producing curves with one co-ordinate scale exaggerated is referred to.
Patent GB-383057-A (GB)
Title: Improvements in or relating to systems for the distribution of programmes of music, speech or the like over line wires
IPC: H04H20/76
Filed: 1931-11-10
Abstract: 383,057. Distributing music. GENERAL ELECTRIC CO., Ltd.. Magnet House, Kingsway, London, CLARK, F. and CHUBB, A. A., of General Electric Co., Stoke, Coventry. Nov. 10, 1931, No. 31125. [Class 40 (iv).] In a system for the distribution of radio programmes &c. the amplifiers at the subsidiary distributing stations are controlled and supervised over the speech wires from the main station. As shown, the operation of the selflocking key 9 at the main station energizes relay G at the subsidiary station to switch on the mains 23. When both amplifying valves are operative the plate relays E, D short-circuit resistance 26 to operate the marginal indicator 6 at the main station. Failure of the amplifier or the eliminator reinserts the resistance. If a mercury vapour rectifier is used a circuit is employed as described in Specification 382,434, [Group XL], to delay the application of the full load to the rectifier and an additional contact controlled by the delay relay is included in the tell-tale circuit. The amplifiers may be controlled by clock-operated contacts in series with the battery 10 which is common to the controlling circuits of all the subsidiary stations. If both line wires break, the amplifier is switched off and the indicator falls. If either line breaks or develops a ground fault, the differential relays A, B are operated. The former shunts out the indicator and the latter shunts out G to switch off the amplifier. If both lines are grounded G is in effect shortcircuited. The transformer windings have resistances at least comparable with those of relays A, B or they are divided and connected together through a condenser.