baber/WOPTO huggingface dataset:
Patent GB-548892-A (GB)
Title: Improvements in or relating to a crop collecting attachment for field mowers
IPC: A01D43/077
Filed: 1941-04-29
Abstract: 548,892. Mowing - machines ; crop - collectors. WILDER, H. H. April 29, 1941. No. 5567 [Class 6 (iii)] [Also in Group XXX] A mower and an elevator for collecting the cut crop are attached to the same chassis, which is mounted on two travelling wheels only, means being provided for preventing the cutter bar straining back and for keeping the elevator and the cutter bar at the correct distance apart. As shown, the chassis is supported upon large and smaller wheels 6, 8. Frame members 24, 25 at the sides of the elevator are connected by a transverse rod 26 and bearing brackets 27 on the members 25 are pivoted on a shaft 28 supported by uprights 29 rearwards of the axes 7, 9 of the wheels so that the mower and elevator are substantially counterbalanced and the elevator can be swung into a substantially horizontal position for transport or storage. In the operative position, a plate 32, secured to a cross brace 31 on the elevator, is secured by a bolt 34 to the chassis and a plate 47 hinged to the cutter bar 43 rests upon the lip of the elevator trough 10. A channel bar 48, hinged to a channel iron 49 on the chassis, is connected by a link 50 to the cutter bar to prevent the latter straining back. Alternatively, the plate 32 is dispensed with and the bar 48 is hinged to the cutter bar 'and extends between rollers 62, Fig. 3, on a bracket 60 secured to a cross member 61 on the trough 10. The elevator comprises spaced tines 15 on bars 14 secured to endless chains 16 passing over sprocket wheels 17, 18, 19. The shafts of the wheels 17, 19 are.carried by frame members 21, 23. The shaft 37 of the wheels 18 is connected with radius rods 35 adjustably connected to U brackets 35a pivoted on a shaft 35b mounted on the members 23. Downward movement of the wheels 18 is limited by eyes 38 on the shaft 37 cooperating with stops 44, arranged at opposite sides of the cutter bar, to enable the tines to run over, or in advance of, the knife, springs 41, arranged between guides 40 on the members 25 and adjustable sleeves 42 on rods 39 engaging the eyes 38, acting to reduce shock. The supplementary rake heads described in Specification 470,075 may be used for very short crops. Specification 402,486 also is referred to.
Patent GB-732114-A (GB)
Title: Improvements in planographic printing
IPC: B41N1/14
Filed: 1952-03-04
Abstract: 732,114. Packaging. POLYCHROME CORPORATION. March 4, 1952 [March 6, 1951], No. 5614/52. Drawings to Specification. Class 94 (1). [Also in Groups VIII, XIII, XVI and XX] Coated paper sheets for use as planographic printing plates (see Group XVI) are stacked in packs between heavy weights and the edges are sprayed with an acid-, water- and oilresistant material such as a vinyl resin.
Patent GB-628454-A (GB)
Title: Improvements in or relating to the production of fluorine containing hydrocarbon derivatives
IPC: C07C17/00
Filed: 1944-03-27
Abstract: Fluorine-containing hydrocarbon derivatives are obtained by the vapour phase reaction of elementary fluorine with hydrocarbons containing at least two carbon atoms or with a halogenated derivative thereof, the fluorine-containing products being recovered from the gaseous reaction product by condensation in the presence of a mass of solid inert material in a form having a large surface-volume ratio. Silver, nickel, iron and particularly copper, are instanced as inert materials, the latter being used as gauze, turnings or sponge.  The reaction may be effected in a tube of copper, silver-plated copper, or preferably nickel, packed throughout with copper or preferably silver-plated copper turnings.  The exit of the tube is connected through a tube containing a compound such as sodium or potassium fluoride for the removal of hydrogen fluoride to a condenser packed with copper sponge or turnings and maintained at subnormal temperatures so that the required product is liquified.  The reactants may be diluted with an inert gas such as nitrogen. Compounds to be fluorinated include aliphatic hydrocarbons such as ethane, kerosene and ethylene; aromatic hydrocarbons such as benzene, toluene and mesitylene; chlorinated aliphatic hydrocarbons such as ethyl chloride, trichloroethylene and hexachloroethane; and chlorinated aromatic hydrocarbons containing the halogen either in the nucleus or side chain such as hexachlorobenzenes, chlorotoluenes and chloroxylenes.  Compounds already containing fluorine may also be used, e.g. chlorofluoroethylenes, ethanes and propanes and benzotrifluoride.  Corresponding compounds containing bromine or iodine may be used.  The temperature of reaction varies with the compound to be treated, a range of 50 DEG  to 500 DEG  C. being mentioned.  For tetra- and hexa-chloroethane temperatures of 150 DEG to 250 DEG  C. are suitable, for long-chain, e.g. C12 to C15, hydrocarbons, temperatures of about 400 DEG  C., for heptane temperatures of 120 DEG  to 200 DEG  C., and for toluene and benzotrifluoride temperatures of 180 DEG  to 250 DEG  C. are used. The product may comprise fluoro-hydrocarbons, fluorocarbons and fluorochlorohydrocarbons, if a chlorinated hydrocarbon is treated. Fluorocarbons predominate when the reaction mixture contains an excess of fluorine and when adequate time for reaction is allowed. Incompletely fluorinated products predominate when an excess of carbon compound is used or at high rates of flow.  It is stated that tetra- and hexa-chloroethane yield mixed fluorochloroethanes containing a high proportion of difluorotetrachlorethane, that toluene and benzotrifluoride yield both additive and substitutive fluorinated products, thus benzotrifluoride yields the compound C7F14, and heptane yields C7F16.  Products obtained may be separated by, e.g., fractional distillation.
Patent GB-1113701-A (GB)
Title: Improvements in or relating to cranes
Inventor: BEUCHEL ERNST
IPC: B60B11/08
Filed: 1966-02-09
Abstract: 1,113,701. Mobile cranes; vehicle wheels. INSTITUT FœR FÍRDERTECHNIK LEIPZIG. 9 Feb., 1966 No. 5703/66. Headings B7C and B7D. The road wheels of a truck-mounted or mobile crane each include a projecting hub member 3 to which is attached, either directly or with the interposition of an intermediate member 10, a rigid auxiliary wheel 4 having an annular reinforcing member 5 for fitting over the hub member 3 or a corresponding portion of the intermediate member 10. The ground pressure exerted by the wheels is thus reduced, and the stability of the crane increased. The rim of the auxiliary wheel 4 is braced by reinforcing ribs 8 and a ring 6, and -may be smooth as shown, or provided with a treaded rubber band. Two auxiliary wheels may be attached to one road wheel.
Patent GB-1383474-A (GB)
Title: Prosthetic knee-joint
IPC: A61F2/38
Filed: 1973-02-06
Abstract: 1383474 Knee-joint prosthesis NEW YORK SOCIETY FOR THE RELIEF OF THE RUPTURED AND CRIPPLED 6 Feb 1973 [8 Fab 1972] 5734/73 Heading A5R A prosthetic knee-joint comprises a femoral condyle component 32 adapted to be secured to a femoral condyle 14, and a tibial condyle component 50 adapted to be secured to the corresponding tibial condyle 15, the femoral condyle component 32 comprising an elongated member adapted to extend from the anterior to the posterior of the femoral condyle and having a varying curvature in the anteriorposterior direction closely matching the anatomical shape of the femoral condyle and further having in sections transverse to its length a laterally-outwardly generally straight zone and a laterally-inwardly curved zone that is externally convex, the tibial condyle component 50 comprising an elongated member adapted to extend from adjacent the anterior extremity to adjacent the posterior extremity of the tibial condylar plateau, the tibial condyle component having an external surface closely matching in sections transverse to its length the transverse shape of the external surface of the femoral condyle component, the said external surface of the tibial condyle component being a surface generated by a substantially straight anterior-posterior line. A prosthetic knee-joint may be placed in either one or both of the femoral-tibial condyle pairs. As shown, the prosthetic knee-joint comprises two similar femoral condyle components 32, (34) Fig. 1, (not shown), interconnected by a crossbar 36, and two similar tibial condyle components 50. The crossbar 36 is curved to fit in the anterior intencondylar notch. The prosthetic knee-joint may be positioned without disturbing the lateral ligaments (20) and cruciate ligaments (22). The internal surfaces of each of the femoral condyle components carries a multiplicity of small pins 43 and an elongated post 40 formed with several shallow concavities 42. The femur is formed with holes 44 to receive the posts 40, and with posterior holes 46 and anterior holes 48. The tibial condyle components 50 are generally rectangular in plan but have rounded corners 51. The bottom surfaces 52 of the tibial condyle components are formed with undercut grooves 59, (58), Fig. 5 (not shown). The tibia is formed with oblique holes 60. The femur and tibia are resected to receive their respective condyle components with the exterior surfaces of the condyle components generally contiguous with the anatomical surfaces. The condyle components are secured by a bonding cement.
Patent GB-652428-A (GB)
Title: Improvements in or relating to electrical apparatus using electromagnetic wave guides
IPC: G01S7/03
Filed: 1948-02-27
Abstract: 652,428. Automatic frequency control systems. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948, No. 5951. Convention date, Aug. 1, 1945. [Class 38 (iv)] [Also in Group XL (b)] A pulse echo system includes a first waveguide mixer adapted to mix part of the output of a transmitter with part of the output of a local oscillator to give an intermediate frequency, means to feed the output of this mixer to an automatic frequency control circuit to stabilize the local oscillator, a second wave-guide mixer in which part of the output of the local oscillator is mixed with the echo energy and means to feed the output of the second mixer to a receiver. The aerial of a radio echo system is connected to the transmitter by a rectangular wave-guide 32 and through a T-R switch and guide 34 to a rectangular guide 36 provided with a detector 43. Part of the transmitted energy is fed through an attenuating circular wave-guide 33 to a rectangular guide 35 and detector 42. Local oscillations are fed into a rectangular guide 41 which communicates with guides 35, 36 through windows 52, 53 in the narrow sides of the guides. The windows 52, 53 are detuned on opposite sides of the transmitted frequency by adjustable plugs 54, 55, so that the received signals do not interfere with the A.F.C. mixer 35, the transmitted energy fed into the A.F.C. mixer does not interfere with the receiver, and local oscillations fed into mixers 35, 36 are greatly attenuated. The I.F. output of detector 42 is fed to an A.F.C. circuit to maintain the local oscillator frequency constant and the I.F. output of detector 43 is fed to the receiver of the system.
Patent GB-1073952-A (GB)
Title: Improvements relating to drawbenches
Inventor: STELL JOHN ERNEST
IPC: B21C19/00
Filed: 1963-02-14
Abstract: 1,073,952. Drawing. SIR JAMES FARMER NORTON & CO. Ltd. May 8, 1964 [Feb. 14, 1963], No. 5981/63. Heading B3P. A draw carriage includes fluid-operated means for actuating means for gripping a rod or the like to be drawn, fluid-operated means for actuating the chain hook of the carriage, and fluid-operated cushioning means associated with the chain hook to prevent snatch when the hook engages the chain. The carriage comprises a frame 10, runner wheels 11, chain hook 12 and grippers 13. The hook 12 is operated by air cylinders 14 and is connected to the carriage through two cushion cylinders 17. Each gripper 13 is operated by a cylinder 16 to close the jaws on to the work. There are two reservoirs 19 mounted on the carriage and these are re-filled, each time the carriage reaches the die-plate end of the drawbench, by nozzles 18 which engage supply nozzles fixed on the drawbench. A cam on the carriage opens a valve to allow air to reach the supply nozzles. The pneumatic circuit includes sequence valves which ensure that when the start signal is received the gripper cylinders 16 operate first and then the hook cylinders 14 operate. When the hook engages the draw chain the pistons in the cylinders 17 move and compress the air up to a limit set by a relief valve. Air then escapes from the cylinders 17 until the pistons engage the end of the cylinders and the carriage begins to move. A device for preventing damage to workpieces at the end of the draw, particularly slender tubes, comprises an hydraulic cylinder under pressure from a pneumatic dash-pot. The ram of the cylinder is engaged by the leading end of the workpiece when it shoots forward as it leaves the die, and compresses the air in the cylinder against a pre-set relief valve, Fig. 3 (not shown). The Specification states that the whole apparatus could be operated by hydraulic instead of pneumatic means.
Patent GB-692769-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/60
Filed: 1952-03-07
Abstract: 692,769. Multiplex radio signalling. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 7, 1952 [March 10, 1951], No. 5994/52. Class 40 (v). In a television receiver, the vision detector 1a and sound detector 1b are similar superregenerative circuits, the former being normally operative and the latter normally biased to cut-off by the source 7. The line deflection circuit 14 produces, during the line-suppression period, positive pulses 21 to render the sound detector operative, and co-incident negative pulses 22 to cut off the vision detector and the cathode-ray picture tube 11. The detectors are self-quenching and the quench frequency of detector 1a is higher than the maximum image frequency to be received. A common receiving aerial is inductively coupled to the tuned circuits 2a, 3a and 2b, 3b of the detectors.
Patent GB-569379-A (GB)
Title: Improvements in or relating to gas turbine plants
Filed: 1943-04-15
Abstract: 569,379. Fluid-pressure servomotor-control systems. SULZER FRERES SOC. ANON. April 15, 1943, No. 6036. Convention date, April 18, 1942. [Class 135] [Also in Group XXVI] Regulating means for a plant comprising a turbine 11 driving compressors 1, 4 which supply a combustion chamber 14, feeding a turbine 16 giving external power, is obtained by controlling the quantity of compressed air byepassing a heat exchanger 9 through a pipe 20 leading to a heated-air inlet 21 for the turbine 11. Regulation is in accordance with the temperature of the gases in the inlet 21. Fuel supply through a pipe 27 may be regulated by pressure-responsive means open to the pipe 21. Part of the compressed air from a pipe 7 passes up a pipe 13 to the combustion chamber of the heat exchanger 9 and supplies the turbine 16 which is regulated separately from the turbine 11. The regulating device for the turbine 11 does not operate until the temperature of the gases in the inlet 21 exceeds the normal temperature. Air from a pipe 2 passes through L.P. and H.P. compressors 1, 4, with intercooler 3, and via tubes 5 in a heat recuperator 6,-heated by exhaust gases from the turbine 11, to the pipe 7. Air is also supplied by a compressor 17. Part of the air in 7 flows through spaces surrounding tubes 8, is heated and supplied to the turbine 11. Exhaust air from the turbine passes through the recuperator 6 'and a cooler 12 to the inlet 2. The quantity of air passing up pipe 20, valve 22, Fig. 2, is controlled by a thermostat 24 acting through links 30, 31 and a valve 32 which admits liquid under pressure from a pipe 43 to one side of a servo-piston 36 and relieves the other side. The thermostat comprises a container partly filled with liquid which will be under a varying evaporating pressure and causes the bellows 28 to expand or contract. A dashpot 34 and its piston, and springs 48, 50, act to restore the valve 32 to its central position when the gases in the pipe 21 are at a predetermined temperature. A fall in temperature in 21 causes a partial closing of the valve 39. In Fig. 3, the thermostat 24 acts on a pivoted lever 67 through a cam 52. Links 60 act on a beam 61 which actuates the valve 32 controlling the servomotor piston 36. Pressure in the pipe 21 acts on a piston 73 and regulates the fuel supply through the pipe 27. The valve 39 cannot be affected by the pressureregulating device 73.
Patent GB-674372-A (GB)
Title: Improvements in or relating to a forging machine
IPC: B21J7/18
Filed: 1950-03-10
Abstract: 674,372. Forging; rolling. NATIONAL MACHINERY CO. March 10, 1950 [April 6, 1949], No. 6066/50. Class 83 (iv). A forging-machine having a pair of relatively movable dies D<SP>1</SP>, D<SP>2</SP> and a reciprocating ram S whose motion is perpendicular to that of the dies, comprises a pair of segmental rolls R<SP>1</SP>, R2 and means for causing rotation of the rolls with the dies closed to engage and give a heated blank a preliminary rolling before being transferred to the dies. The ram S carries forging tools 12 and 13 which co-operate with pockets 10 and 11 in the fixed die D<SP>2</SP> and movable die D<SP>1</SP>. Above the dies and secured thereto are mounted a pair of roll-supporting block assemblies 20 and 21 having roll receiving recesses 22 and 23 for the rolls R<SP>1</SP> and R<SP>2</SP> which are pivoted at 24 and retained in their initial position against a stop 30 by a spring-loaded return-rod 27. Each roll has an actuating roller 31, and upper and lower hardened steel die-blocks 33 and 36. For operating the rolls the ram S carries a plate 38 having a surface 39 which engages the rollers 31 when the ram advances. A safety lever 41 pivoted to the roller assembly at 42 prevents the roll R<SP>1</SP> from being jammed by the plate 38 should the movable die D<SP>1</SP> spring open in the event of an overload. An extension 43 of the lever 41 seats against a guide portion 44 for the movable die D<SP>1</SP>. In operation, a heated blank B is positioned between the dies D<SP>1</SP> and D<SP>2</SP> and the dies closed to grip the blank between adjacent roll portions. Thereafter, the ram S is advanced to rock the rolls R<SP>1</SP> and R<SP>2</SP> and so shape the blank and when the ram returns to its initial position the dies open and the blank may be transferred to another roll impression or to the die cavities 10 or 11 for the final forging operation.
Patent GB-826178-A (GB)
Title: Improvements in or relating to the interpolymerisation of hydrocarbons
IPC: C08F210/00
Filed: 1957-02-22
Abstract: Ethylene is interpolymerized with at least one other hydrocarbon having one terminal -CH=CH2 group and no other non-aromatic unsaturation, each said other hydrocarbon having at least four carbon atoms per molecule, in the presence of a co-ordination catalyst.  A co-ordination catalyst is defined as one composed of at least one transition metal compound MRx, where M is a transition metal, x its valency and R is hydrogen, hydrocarbon, oxyhydrocarbon, halohydrocarbon or halide and a reducing component such as a metal hydride or compound having metal attached directly to carbon.  The preferred catalyst mixture is of titanium tetrachloride and lithium aluminium tetrahydrocarbon.  Specified other hydrocarbons are heptene-1, pentene-1, decene-1, and dodecene-1.  The reaction is preferably carried out in the presence of an inert solvent at a temperature high enough to produce a solution of the interpolymer. Specifications 776,326 and 810,210 are referred to.
Patent GB-159816-A (GB)
Title: Improvements in or relating to steam ejectors with cooled diffusers
IPC: F04F5/46
Filed: 1921-02-23
Abstract: 159,816. Soc. des Condenseurs Delas. March 3, 1920, [Convention date]. Aspirating-apparatus, ejector; mixed fluids in ejectors cooled.- Relates to steam-operated air and gas ejectors wherein the mixed fluids in the diffuser are cooled by the provision of a cooling-water jacket for the diffuser. The cooling-water is brought to the receiving end of the diffuser first, and is led around the diffuser pipe by an open-ended dice-box tube within the jacket, so shaped that the cooling-water has maximum velocity opposite the middle of the diffuser. Water enters, bv the aperture g, an upper chamber a of the jacket b and obtains access through perforations in a cylindrical plate c to the interior of the tube or casing e around the diffuser d, passing at the open lower end into the lower chamber r and thus to the outflow p. To allow for the expansion and contraction of the diffuser, either a stuffing-box is provided, or the diffuser d, Fig. 11, is furnished with a flexible diaphragm j having suitable means h, k, k<1> for making a tight screw connection. The application of the invention to double-stage ejectors is described, with or without an intermediate condenser for volatile vapours that may be supplied from the cooling-water jacket. Specification 142,085 is referred to.
Patent GB-267502-A (GB)
Title: Improved electro-magnetically operated switches
IPC: H01H51/06
Filed: 1927-03-05
Abstract: 267,502. Bosch Akt.-Ges., R. March 13,1926, [Convention date]. Electromagnetic switches; contacts. - An electromagnetic switch for controlling the windings of electric starters for motor vehicles has a movable contact member 10 formed with lateral extensions 11, 12 of different lengths so that when the contact operating core 3 is attracted the extension 11 engages its co-operating fixed contact 5 before the extension 12 engages its contact 6 so closing the circuit through the auxiliary winding 20 of the starting motor 21 in advance of the of the circuit of the main winding 23. The contact-member 10 is loosely mounted on the core 10 so that it may have a tilting movement between the successive engagements of its contact projections and is pressed downwardly against a collar 9 by a leaf spring 13, the core having a return spring 14. The energizing coil 2 is connected to a battery 17 through a switch 16 and is wound within a pot magnet 1.
Patent GB-575743-A (GB)
Title: Improvements in or relating to mechanism for the suspension of bobbins in the creelsof spinning or preparing machines
IPC: D01H1/18
Filed: 1944-04-03
Abstract: 575,743. Supporting creel bobbins in spinning &c. machines. CASABLANCAS HIGH DRAFT CO., Ltd., and NOGUERA, J. April 3, 1944, No. 6210. [Class 120 (ii)] Mechanism of the kind set forth in Specification 456,425, for suspending bobbins in the creels of spinning &c. machines, comprises a resilient U-shaped member 33, within the cylindrical casing 10, having downwardly extending arms 30 embracing the rotatable catch 18, one arm being formed with a hook 31, whereby on upward movement of the member 23, i.e., when the bobbin is pressed upwardly against the collar 27 which engages the member 23 through a key 25, the hook 31 will turn the catch 18, by engaging one or other of plates 20 which space the elongated hexagonal catch plates 19, to move the catch to a horizontal or vertical position so to retain or release the bobbin whose upper end is positioned between the catch faces 19 and the conical face 32 of the collar 27. A compression spring 29 is positioned between the upper end of the tube 10 and a dished plate 28 contacting the key 25.
Patent GB-1130539-A (GB)
Title: Improvements in or relating to rotatable ejector members for use in devices for spreading granular or powdery material
IPC: A01C17/00
Filed: 1966-02-11
Abstract: 1,130,539. Centrifugal distributers. C. VAN DER LELY N.V. 11 Feb., 1966 [3 March, 1965], No. 6253/66. Heading A1D. An ejector member for a centrifugal material spreader comprises a plate 2 fitted with arms 6 each having two curved portions 7, 8 the centres of curvature of which are situated to the front and the rear of each arm with respect to the direction of rotation A of the member.