baber/WOPTO huggingface dataset:
Patent GB-542807-A (GB)
Title: Improvements in sawing or cutting machines
IPC: B27B5/20
Filed: 1940-06-19
Abstract: 542,807. Sawing-machines. DE WALT PRODUCTS CORPORATION. June 19,1940, No. 10581. Convention date, June 17, 1939. [Class 145 (ii)] A sawing-machine comprises a base 10 formed at one end with a throat 22 in which is slidably mounted a column 30 on the upper end of which is pivotably mounted an arm 52 on which is slidably mounted a member 87 carrying a motor-driven saw 100. Vertical movement of the column 30 is effected by a centrallydisposed screw operated by a handle 47 and engaging a fixed internal projection on the throat 22. The latter is split and adjusted so as closely to support the column by a clamping bolt 28, a sliding key 32 being provided. The arm 52 is supported by a split head 51 encircling the column 30 and clamped in any adjusted radial position by a handle 60. To facilitate settings for mitreing a pivoted stop member is provided on the head to engage suitably disposed notches in a ring 65<SP>1</SP> fixed to the column 30. A wooden table 17 carrying a fence 16 is provided over the base 10 and is made reversible to vary the position of the fence. The base is mounted on wooden members 11 formed with lifting handles 14. The saw is protected by an adjustable guard 101 which is provided with a discharge spout 104 over which a rubber elbow piece may be placed so as to discharge cuttings in a desired direction. The manner in which the saw-carrying member 87 is mounted on the arm 52 is described in Specification 542,808.
Patent GB-352402-A (GB)
IPC: B21B39/00
Filed: 1930-04-03
Abstract: 352,402. Friction gearing. KRUPP GRUSONWERK AKT.-GES., F., Buckau, Magdeburg, Germany. April 3, 1930, No. 10624. Convention date, May 29, 1929. [Class 80 (i).] A roller for roller-way conveyers is driven by an electromotor 10 through friction gearing on which a roller 12 on the armature shaft 11 engages between three idler rollers 14, 15 radially free in a stationary bracket 4 and engaging an outer ring 16 which is integral with the roller 1 or coupled thereto by pins 17 and slots 18. The gearing may carry wedge-shaped ribs on its engaging surfaces. The roller 1 turns on a stationary shaft 2 and on the bracket 4. The motor may lie within the roller 1. Instead of the roller 12, one of the rollers 14, 15 may be driven by the motor.
Patent GB-974753-A (GB)
Title: Improvements relating to interference suppression in receivers of electromagnetic waves of any desired frequency
Inventor: EIGEN DAVID
IPC: H04B1/12
Filed: 1961-03-23
Abstract: 974,753. Radio receiving systems. OKONITE CO. March 23, 1961, No. 10653/61. Heading H4L. A superheterodyne receiver includes means for balancing out undesired noise signals. As shown in Fig. 1, the receiver has a conventional tuning stage 6, local oscillator 8, and mixer 10, but the I.F. stage 12 is supplied via a transformer 14 having two identical and closely coupled primary windings, 16, 18, intermediate frequency signals plus noise being fed to winding 16 from the mixer 10 and noise signals to winding 18 from the aerial 2 via capacitor 23. The circuit 12 normally would be shock-excited by noise impulses, but the windings 16, 18 are connected so that the noise signals are in phase opposition and are stated to be substantially cancelled. In order to ensure more accurate balance an adjustable phase-shifter may be included in the lead 24. In a modification, the lead 24 is supplied from a separate aerial. In an alternative arrangement, Fig. 6 (not shown), cancellation of the noise signals takes place in the R.F. stages. A circuit resonant at the I.F. frequency is connected to the aerial to select a noise signal which is supplied to a frequency changer together with a signal from the receiver local oscillator. The frequency-changed noise signal is supplied to one half of the centretapped winding of a tuned R.F. transformer feeding the normal mixer stage, the other half of the primary winding receiving the required R.F. signal plus noise from the aerial and in this way the noise signals are balanced out.
Patent GB-417997-A (GB)
Title: Improvements in splints
IPC: A61F5/058
Filed: 1933-04-10
Abstract: 417,997. Surgical splints and bedsteads; tension apparatus. PORTEOUS, J., Parkmount, Lasswade Road, Liberton, Edinburgh. April 10, 1933, No. 10693. [Class 81 (ii).] A splint for maintaining the body in a rigid prostrate position comprises longitudinal members or runners a, which are adjustable as to their distance apart by means of bolts h, and hinged side flaps b fixable in a vertical position. Leg slats c are pivoted on the runners to allow abduction, being supported by a crossbar j and fixed by means of thumbscrews p and segmental arms k. A body mattress, a buttock mattress, and two leg mattresses are provided being supported by slots l, m and the leg slats c. The buttock mattress is adapted to be withdrawn horizontally. The runners are provided with lifting handles g and carry the flaps b provided with arm rests or crutches b<1>. Each leg slat carries an adjustable bracket f for one or more pulleys over which cords pass for weight attachment, while hoops s support the bedclothes. For treatment of flexed limbs, a double inclined plane v, Fig. 3, is fitted, traction being applied to the thigh and leg independently by means of pulleys e<1>, e<2>. Foot rests u connected to the leg by adjustable straps may be provided. Packing can be inserted under the body mattress to produce hyperextension of the spine.
Patent GB-405234-A (GB)
Title: Improvements in or relating to regulating arrangements for electric generators
IPC: H02P9/46
Filed: 1932-04-16
Abstract: 405,234. Maintaining defined speeds of motors. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin, and KUHLMANN, K., 11, Breite Strasse, Wallisellen, Zurich, Switzerland. April 16, 1932, No. 10984. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 19, 1932]. [Class 38 (iii).] Fig. 6 shows apparatus for regulating the frequency of an asynchronous generator R, S, driven by a prime-mover P and supplying mains N. Q is a synchronous generator supplying current at constant frequency to a motor 20, the rotor of which is fed from the mains N. Any deviation of the mains frequency from the standard causes the armature to move to close either contacts 21, 22, or contacts 21, 23. Closure of contacts effects adjustment of the throttle of the prime mover P to give frequency control. To maintain constant the speed of the induction motor U driving the synchronous generator Q an eddy current brake E mounted on the shaft is fed from the D.C. mains 10 through a resistance F which is periodically short-circuited by means of a governor D, the period of short-circuit during each revolution being determined by the speed. This effects a fine regulation of speed. To obtain a coarse regulation a relay K is connected across the resistance F which alternately connects a motor 0 across opposite halves of a potentiometer L. When the period of open-circuit of the governor contacts exceeds the period of short-circuit or vice-versa the motor 0 operates to reset a resistance 19 connected to the armature of the motor U.
Patent GB-117267-A (GB)
Title: Method of Garbage Disposal.
Inventor: WALLACE EDWIN CORBY
IPC: C05F9/04
Filed: 1918-07-04
Abstract: 117,267. Wallace, E. C., and Prescott, S. C. July 5, 1917, [Convention date]. Refuse, dust-bin, treating; manures.-In a process for treating garbage with aerobic bacteria, the garbage is mixed with finely ground mineral or other absorbent material to prevent the action of the bacteria from being impeded by the moisture contained in the garbage. Suitable absorbent materials are orthoclase or other potassium-containing rocks, phosphate rock, calcareous rock, gypsum, ground peat, woody tissue, sawdust, and sewage sludge. The material may be placed in containers, to which warm, cool or moistened air can be supplied, with a culture of appropriate bacteria, and fresh amounts of material with a gradually increasing proportion of absorbent added as the action slackens. Suitable bacteria axe those of the Bacillus subtilis group, especially Bacterium megatherium. The resulting product may be used as manure.
Patent GB-142118-A (GB)
Title: Improvements in suction chambers for sets of artificial teeth
IPC: A61C13/24
Filed: 1920-04-21
Abstract: 142,118. Gumpel, S. April 21, 1920. No Patent granted (Seading fee not paid). Teeth, artificial.-A suction chamber mounted in the palate of a denture is fitted with a perforated cover of flexible elastic material and with studs, which are preferably elastic and perforated, to prevent collapse of the cover. The cover is preferably formed with flanges encircling a non- perforated portion so as to form a suction cup. In the form shown, a chamber a is formed at its upper edge with a flange b. and is fitted with a perforated soft-rubber cover c held in place by an elastic ring e consisting, preferably, of helically wound wire. The upper or palatal surface of the cover c is formed with flanges f, g. The annular space between the flanges is unperforated so as to form a suction cup. In a modification, the central space forms a suction cup, and the annular space is perforated. Perforated, preferably elastic, studs i prevent collapse of the cover, and may be attached to the base of the chamber a, as shown, or to the underside of the cover. The flange b of the chamber is preferably covered with rubber h, as shown.
Patent GB-1275683-A (GB)
Title: Abrasive product and method of making
Inventor: NEMETH B J
IPC: C09K3/14
Filed: 1970-03-09
Abstract: 1275683 Abrasive tools; core drills KENNAMETAL Inc 9 March 1970 [29 April 1969] 11077/70 Headings B3C and B3D [Also in Divisions Cl and C4] An abrasive material consists of particles each of which is composed of essentially synthetic diamonds distributed in a body of matrix material in which the diamonds were formed in situ by precipitation, the particles being formed by crushing a larger member of the same composition and screening the particles formed to group them into size ranges. The member is obtained by forming a charge of non-diamond carbon and a metal which includes a carbon solvent and subjecting the charge to heat and pressure to convert the carbon to diamond. Suitable metals are alloys of iron, nickel and chromium and small amounts of metal such as manganese, tantalum, titanium, zirconium and copper may be present. A work member such as a grinding wheel or core drill comprises a holder having a work surface and, bonded to the surface, particles of diamond distributed in a body of matrix material in which the diamonds are formed in situ.
Patent GB-1403803-A (GB)
Title: Motor or hand-operated pallet transporting fork cart
IPC: B66F9/06
Filed: 1973-03-07
Abstract: 1403803 Low lift pallet truck M SATO 7 March 1973 [7 March 1972] 11084/73 Heading B8H A low lift pallet truck is provided at the free end of each line with a support wheel 9 mounted between a pair of bell crank levers 17 to extend forwardly of the end of the line. The wheels are mounted on one arm of the levers, which are pivotally mounted at their fulcrum to a shaft 7, and an operating rod 4 is secured to the other arm. The rod moves the wheel between a lower ground engaging position, corresponding to the raised position of the lines and an upper ground engaging position corresponding to the lowered position of the lines. In the latter position of the wheel, the arm of the bell crank, which supports the wheel, is arranged to abut a flange 20 depending from the end of the line to support same. A reinforcing rod 18 extends between the levers in the region of the abutment between the levers and the flange.
Patent GB-417876-A (GB)
Title: Improvements in or relating to glazed roofs
IPC: E04D3/08
Filed: 1933-04-13
Abstract: 417,876. Glazed roofs. ABBEY, A., 111, Hatton Garden, London.-(Crawford, A. C.; 123, Pension St. Philippe, Faubourg St. Honore, Paris.) April 13, 1933, No. 11165. [Class 20 (iii).] In order that glazed roofs may resist an excess of internal over external pressure during gales, the glass sheets 5 are made convex towards the interior or given any other suitable ribbed or curved section, e.g. as shown in Figs. 5 and 8, and the astragals are given a T-section to resist pressures from below. The flanges of the astragals are shaped to fit the glass curvature, and strong clips 7 and intermediate flashing strips 6 secure the glass.
Patent GB-733728-A (GB)
Title: Improvements in rotary regenerative heat exchangers
IPC: F28D19/04
Filed: 1953-04-23
Abstract: 733,728. Regenerative heat-exchangers. SVENSKA ROTOR MASKINER AKTIEBOLAG. April 23, 1953 [Dec. 22, 1952; March 23, 1953], No. 11180/53. Class 64 (1). [Also in Group XXXIV]  In a rotary regenerative heat-exchanger having a matrix-rotor rotating on a vertical axis, the rotor is rotatably supported at its periphery on a single axial thrust bearing comprising two coaxial bearing members one of which is associated with and rotates with the rotor and the other of which is fixed to a stationary component such as a housing surrounding the rotor, one of the said bearing members being laterally movable relative to the component with which it is associated. The bearing members are formed with tracks in which a plurality of steel balls 70 are received so that one member may rotate freely with respect to the other. The lower and fixed member 44, which forms part of the housing structure, rests on peripherally spaced standards 36 and in turn supports a ring 50 of channel section. The housing structure includes also a cylindrical shell 48 surrounding the rotor and also end plates 12, 14 apertured in the usual manner to permit the heat exchanging fluids to flow axially through the rotor 52 which latter includes an outer shell 56 at the upper end of which is a ring element 90 having a peripheral flange 92 the underside of which rests with an interposed ring 98 of heat insulating material, slidably upon a seating formed by the upper member 46 of the bearing. The frictional grip between these surfaces due to the weight of the rotor is such that when the upper bearing member 46 is rotated through a rack 80 and pinion (not shown) the rotor is rotated also. A clearance is provided between the outer periphery of flange 92 and a shoulder 100 formed on the upper bearing member 46. This clearance allows relative movement due e.g. to thermal distortion between the rotor and the supporting bearing. Arrangements are described in which the bearing is located centrally between the rotor ends or at the lower end thereof (Figs. 7 and 8, not shown). Instead of relying upon frictional contact between the upper bearing member and the rotor for driving purposes as described above, these members may be interconnected by links or by a flexible diaphragm (see Figs. 13, 14, not shown). Both these arrangements allow relative movement between the rotor and the upper bearing member and in them also the rotor is preferably centred by an arrangement at its axis (Fig. 15, not shown). Either the upper or lower bearing member may be formed with independently movable segments. Cool air led e.g.. from tne duct conveying air to be heated to the apparatus may be directed through a connection 144 to flow over the bearing and through an annular space 140 formed between the rotor shell 56 and the shell 48 of the stationary housing. Radial and peripheral seals are provided. It is stated that the apparatus is adaptable for a friction drive.
Patent GB-288984-A (GB)
Title: Improvements in and relating to picking motions of looms for weaving
IPC: D03D51/00
Filed: 1928-04-16
Abstract: 288,984. Oesterreichische Siemens- Schuckertwerke, and Textilwerke Mautner Akt.-Ges. April 15, 1927, [Convention date]. Driving - arrangements. - Relates to picking - motions of looms wherein the shuttle is picked by the engagement therewith of a rotating friction roller and consists in forming the roller as part of an electric motor. As shown, the short-circuited rotor 1 of an induction motor is formed with the roller 5, the stator 2 lying within the rotor 1 and being fed with electric current through a hollow shaft 3. A spring 6 permits of axial displacement of the roller.
Patent GB-890400-A (GB)
Title: Improved connector for the hoist chains, hoist cable and dump block of a dragline excavator
Inventor: SMITH WILLIS DECK
IPC: E02F3/60
Filed: 1959-04-02
Abstract: 890,400. Earth-moving equipment. ELECTRIC STEEL FOUNDRY CO. April 2, 1959, No. 11312/59. Class 68(1). Connector for the hoist chains, hoist cable 23a, and dump block of a drag line excavator is such as to allow of limited universal movement of the dump block relative to the connector so that the block is always in alignment with the dump cable. The block is pivoted to a link 35, which is of less width than, and has an aperture 36 larger than, a spool 28. The spool 28 is situated between the spaced limbs 26 of a socket 23 at the lower end of the hoist cable 23a, and turns freely on a pin 27 passed through aligned apertures in a shackle 25, the limbs of the socket 23 and the spool 28. The shackle 25 is coupled to the hoist chain. The link 35 can swivel on the spool 28, which preferably has a concave periphery 39 to allow of the dump block automatically aligning with the dump cable. The edge of the hole 36 in the link 35 is rounded to also facilitate this swivelling of the link on the spool.
Patent GB-638298-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: SMITH AUSTIN GEOFFREY
IPC: F28D7/08
Filed: 1947-03-29
Abstract: 638,298. Tubular heat - exchangers. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. April 29, 1947, No. 11440. [Class 64(iii)] Tubular apparatus for the exchange of heat between two fluids comprises a battery of Z-shaped tubes each tube being identical in length and shape with that tube which is adjacent to it in the direction transverse to the plane of the Z but being identical only in length and angularity with an adjacent tube lying within the plane of the Z, all the tubes lying within said plane nesting with each other. The tube battery is arranged in an enclosing oduct through which the other fluid flows in parallel flow or contra flow, the tubes at their ends being directed transversely of the path of the second mentioned fluid to their supply and discharge points 5 and 6 respectively. In the form shown, the tubes 4 are arranged in banks 7, each bank being provided with end supports 8 and 9 forming inlet and outlet header blocks respectively. A number of blocks are arranged in the heat exchanger body 1 and are secured therein by means of angle iron members 10. Adjacent header blocks may have flat, smooth sides to form a gas tight joint with or without sealing or packing compounds between, or interlocking tongues and grooves may be formed on each block. In Fig. 1 all the tubes in any one bank are identical in shape and size but in another embodiment the tubes in any one bank whilst of identical overall length may be arranged so that their transversly-directed ends increase in length from a minimum to a maximum. The header blocks may be formed with complementary semi-circular recesses for gripping the ends of the tubes or alternatively the blocks may be formed by the powdered metallurgy technique as described in Specification 618,905. Separators 13 may be arranged between adjacent rows of tubes each separator comprising a corrugated strip of resilient material, bent as shown in Fig. 3, and being under slight tension when in position.
Patent GB-1124766-A (GB)
Title: Oligomerization catalysts
Inventor: ADDY LESLIE ERNEST
IPC: B01J27/22
Filed: 1965-03-18
Abstract: Olefins are oligomerized in the presence of Co on C catalysts prepared by (a) depositing a nitrate A and a Co compound B on activated carbon, (b) heating the carbon on which the nitrate A and Co compound B have been deposited until all the nitrate has reacted, and (c) heating the carbon at 200-600 DEG  C. in an inert atmosphere. Typical oligomerization conditions are:  temperature 0-100 DEG  C., pressure 300-1000 p.s.i.g.  Flow rate 8-16 gms. of olefine/gm. catalyst/hour.  If desired, the olefines may be oligomerized in a solvent, e.g. pentane, hexane or cyclohexane. Olefines which may be oligomerized are ethylene, propylene, butenes, pentenes and mixtures thereof.  In examples, propylene is oligomerized either to hexenes, or hexenes and nonenes. A breakdown of the hexene fraction revealed that 4-methyl- and 2-methyl-pentene-1, transand cis-4-methylpentene-2, hexenes-1, -2 and -3 and 2-methylpentene-2 were produced.ALSO:An oligamerisation catalyst is made by depositing a nitrate A and a cobalt compound B on activated carbon, heating the carbon until all the nitrate has reacted and further heating the carbon in an inert gas at 200-600 DEG C.  Nitrate A is preferably Cu(NO3)2, Ni(NO3)2 or Cr(NO3)3.  The preferred cobalt compounds are cobalt formate or acetate.
Patent GB-668859-A (GB)
Title: Improved jointing or coupling means for connecting together tubes or rods
IPC: F16B35/04
Filed: 1949-05-02
Abstract: 668,859. Rod and tube joints. GASCOIGNE CO., Ltd., G. H., and CHAPMAN, A. J. Feb. 23, 1950 [May 2, 1949], No. 11633/49. Class 99 (i) A coupling device for rods or tubes comprises a coupling member 16 having a tapped hole to receive the screwed shank 1 of an expander having a tapered head 4 engaging within an expandible ring 5, and an actuating disc 8 having a bore 9 of non-circular form co-operating with a complementary shank portion 3 of the expander, whereby the ring is first drawn against the disc and then expanded into gripping contact with a tube 7 or hollow-ended rod. The external surfaces of tube, disc, and coupling member are flush. The disc has a spigot portion 13 engaging within the tube.
Patent GB-711663-A (GB)
Title: Improvements in or relating to the preparation of dimethoxydecadienes
Filed: 1952-05-08
Abstract: A mixture of isomeric dimethoxy-decadienes of the formula CH3O-C10H16-OCH3 is obtained by treating a mixture of methoxychloropentenes CH3-C5H8-Cl with finely-divided iron or nickel in the presence of a solvent for the methoxychloropentene at 10 DEG C. to the reflux temperature of the mixture; the metal will pass through a No. 140 U.S. Standard sieve (reference given) and is present in sufficient quantity to react with all the chlorine atoms. The starting material is obtained from methyl chloromethyl ether and butadiene as in U.S.A. Specification 2,075,312, and comprises mainly 1 - methoxy - 5 - chloropent - 3 - ene, giving as p  product mainly 1 : 10-dimethoxy-deca-3 : 7-diene; other isomers also give mainly this product due to allylic re-arrangement.  The reaction temperature is preferably 20 DEG  C. or higher, and the pressure may be normal, super- or sub-atmospheric.  Preferred solvents are alcohols with 1-7 carbon atoms, acetonitrile, propionitrile, butyronitrile, dimethylformamide and dioxane. Examples of the process are given, using pyrophoric iron, hydrogen-reduced iron and Raney nickel; ethanol and acetonitrile are employed as solvents.  The individual isomers can be separated by fractionation or the mixture can be hydrogenated and oxidized to dicarboxylic acids, e.g. sebacic.
Patent GB-140639-A (GB)
Title: Improvements in photo pendants and the like
IPC: A47G1/16
Filed: 1919-05-10
Abstract: 140,639. Fellow, A. R. May 10, 1919. Lockets and the like.-A photo pendant or the like of the split-rim type is fastened by the ends of the rim 1, Fig. 1, being provided with an integral staple 2 bridging the gap, and adapted to receive a hollow head 3 to draw the edges of the rim together, a suspension ring 4 being then passed through the projecting end of the staple 2 and serving also to hold the head 3 in place. In a modification, Fig. 5, the staple 2<a> is split, the opposing free ends being held firmly together when the head 3 is placed in position.
Patent GB-265431-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F5/00
Filed: 1926-05-04
Abstract: 265,431. Corbett, C. F. May 4, 1926. Tobacco pipes. - The bowl has a closed top with bushed orifice .21, and a metal liner 13 to which is hinged a bottom cover 12 retained in locked position by a spring-urged locking bolt 18. The bore of the stem is spaced from the bottom of the bowl.