baber/WOPTO huggingface dataset:
Patent GB-1150842-A (GB)
Title: Arrangement for removing branches and bark from felled trees
IPC: B27L1/12
Filed: 1967-03-03
Abstract: 1,150,842. Woodworking. ROTENBURGER METALLWERKE G.m.b.H. 3 March, 1967 [6 April, 1966], No. 10057/67. Heading B5L. [Also in Division F2] An arrangement for stripping branches and bark from felled trees comprises two horizontally slidable parts 18, 19, Fig. 4, having chain saw 41, 42 on guiding and driving pinions 23 . . . 39, each part having a chain feed for the trunks 11, the chain saws running one over and the other under the trunks, the drive pinions 39, 40 being connected to a drive unit through an overrunning free wheel 81, Fig. 14, and drive coupling 82 . . . 85 and the tension and feed sides of the chains being independently adjustable, and preliminary sawing components 50, Fig. 7, consisting of chain saws arranged in cross-formation. The debranching and debarking arrangement is disposed between a guide frame 3, Fig. 2, into which the trunks are winched from an aligned table 5 or lateral table 4, and a discharge frame 12 on which the treated trunks are moved laterally so as to be cut into lengths by cross-cut saws 7. The preliminary chain saws 50 are carried by the parts 18, 19, each part carrying two saws so that the trunk 11 is enclosed by the saws and has its branches removed. Deflectors 61, Fig. 17, on the trailing side of the saw bars 57 prevent lifting of the saw 60 from the bar by the cut piece 64 of the trunk. Each part 18, 19 is hydraulically movable in a horizontal direction to accommodate the trunk therebetween and supports the pinions for the chain saw, pinions 27, 28, 34, 35 being hydraulically urged to control the tension in the saw. Adjacent each pinion is a scraper for ejecting chips from the pinions, and the pinions adjacent the trunk have cutters for removing protruding parts of the trunk. The drive pinions 39, 40 are mounted on overrunning free-wheels 81, Fig. 14, on shafts 78 and are driven from gears 79 through electromagnetic clutches 82 . . . 85. The parts 18, 19 are connected by cables to vertically movable slides carrying guide rollers adjacent the inlet and outlet of the de-branching and de-barking apparatus, and part 19 is coupled by a triple pulley system to a vertically movable frame having supports for holding the upper chain saw in a raised position before entry of a trunk into the apparatus. The slides also carry lateral supports 76, Fig. 18, for the chain saws 41, 42. A blower 73 has a nozzle 75 for blowing chips from the chain saw 41. The trunks are fed through the apparatus by chains 130, Fig. 20, mounted on each part 18, 19, adjacent chains having their teeth inclined in opposite directions. The trunks are fed through the apparatus small ends first and are joined end-to-end by a connector.
Patent GB-312448-A (GB)
Title: Improvements in electrical transformer tanks
IPC: H01F27/12
Filed: 1928-04-04
Abstract: 312,448. Ash, T. Freer-. April 4, 1928. Transformers.-A transformer tank a is provided internally with vertical air passages e communicating with openings c, d in the walls of the tank and forming an inner enclosure h for the transformer. The spaces j left at the corners of the tank form passages for the thermo-syphonic circulation of the cooling oil, and these spaces communicate with each other through passages k formed between the air passages e and the walls of the tank. Auxiliary air passages n may be provided in the spaces j, and auxiliary oil passages o may be provided in the air passages e.
Patent GB-138584-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/46
Filed: 1919-04-23
Abstract: 138,584. Bardin, V. Feb. 4, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Sparking-plugs. - In order to maintain the joints of the plug in a gas-tight condition, a metal tube or a series of washers 5 is interposed between the insulator and its retaining member, the material of the tube 5 having such a coefficient of expansion as will compensate for the differing coefficients of the casing 4 and insulator 2.
Patent GB-345508-A (GB)
Title: Lathe tail stock
IPC: B23B23/00
Filed: 1930-03-31
Abstract: 345,508. Lathes. BRILL, K. F., 68, Nordoberhausenstrasse, Sterkrade, Rhineland, Germany. March 31, 1930, No. 10174. Addition to 342,203. [Class 83 (iii).] In a modification of the lathe tail-stock described in the parent Specification, in which the centre is held in contact with the work by fluid pressure, relief means being provided to allow the centre to recede when the work expands due to a rise in temperature, an air buffer is provided in communication with the pressure chamber for the centre so that pressure variations of short duration, e.g. due to vibrations in the machine, do not cause a recession of the centre. In one form the pressure chamber 7, Fig. 3, for the centre 4 is connected to an air-vessel 30, cocks being provided at 31 for communication with the atmosphere, at 31<11> for cutting off communication with the air-vessel and at 31<1> for shutting off the fluid supply to the chamber 7. In a modification the pressure gauge 33 carries electrical contacts connected by leads 34 to a motor driving a pump for the pressure fluid, the action being such that when the pressure in the chamber 7 falls the motor is started to maintain the pressure and when the pressure rises the motor is stopped. Fluid is supplied by a pipe 12. In another form the feed screw 18, Fig. 4, for the centre is rotated through worm gearing 35 from a hand-wheel 19 and the pressure in the chamber 7 is varied by a plunger 20 screwing in the sleeve 17 and rotated by a spindle 21<1> and a hand-wheel 25. The pressure gauge 33 may carry electrical contacts connected by leads 38 to a motor 37 which rotates the spindle 211 in one direction or the other through gearing 36 according to whether the pressure rises or falls. An indicator, either optical or acoustic, may be operated from the leads 38 to indicate changes of pressure. In a simplified tail-stock for medium or light lathes the pressure in the chamber 7 is maintained by the air pressure in the vessel 30, extreme variations of pressure being regulated by the plunger 20. In this construction compressed air is supplied to the vessel 30 and an automatic regulating valve of known type may be provided for maintaining the pressure constant.
Patent GB-852734-A (GB)
Title: Improvements in x-ray generator tubes
IPC: H01J35/10
Filed: 1957-03-29
Abstract: 852,734. Electrode materials and processing. COMPAGNIE GENERALE DE RADIOLOGIE. March 29, 1957 [March 30, 1956], No. 10383/57. Drawings to Specification. Class 39(1). [Also in Group XXXVI] The anode of an X-ray tube is coated with rhenium, at least 10Á thick, on at least the bombarded area, to increase heat dissipation. It may be coated directly on to a molybdenum base, or on to an intermediate layer of tungsten. The non-bombarded area may be carbonised. The rhenium may be deposited electrolytically, or by decomposition of a vapour.
Patent GB-161529-A (GB)
Title: Improvements in or relating to means for preventing the unauthorised use of mechanism, particularly applicable to automobile vehicles
IPC: B60R25/022
Filed: 1921-04-08
Abstract: 161,529. Le Royer, C. C. April 9, 1920, [Convention date]. Securing wheels on shafts.-Means for preventing unauthorized operation of mechanism as, for example, the steering mechanism of motor road vehicles, comprises a hub C, secured to the steering-column B, and provided with a flange a, a sleeve D secured to the steering-wheel A, a sleeve E secured in a nut H and adapted, when rotated on the flange a, to raise the steering-wheel sleeve D out of engagement with studs b, c in the flange a, and to be locked in its upper position by a combination ring device. When the sleeve D is raised, the lugs of a bolt Q are pressed into notches n, o in the sleeve, by springs l, m, thereby locking the sleeves D and E together. Unlocking is effected by turning rings I, J, K, L, to permit pins d, e, f, g to enter recesses h, i, j, k, therein so that the plate 0 may retract the lugs of the bolt Q, the spring P which moves the plate being stronger than the springs l, m. The sleeve E and nut H are secured by a screw 4, and, in addition, by a hollow bolt X when the sleeves D and E are locked. Movement of the plate 0 in unlocking the sleeves also presses the bolt X into a recess in the nut by means of a rod z. Numbered or lettered rings p, q, r, s are adapted to be secured to the locking rings in a number of different positions. The pins d, e, f, g, contact w ith small recesses in the looking rings to prevent recognition of the hole by groping for it.
Patent GB-481006-A (GB)
Title: Improvements in suspension systems for motor and other vehicles
IPC: B60G11/14
Filed: 1937-04-13
Abstract: 481,006. Vehicle spring - suspensions. MORRIS COMMERCIAL CARS, Ltd., and ROSE, P. G. April 13, 1937, No. 10444. Drawings to Specification. [Class 108 (ii)] A vehicle is provided with angularly-movable or swinging half-axles or axle casings hingedly connected to a common median frame member situated in the central vertical longitudinal plane of the vehicle in combination with brakets projecting from opposite sides of the median member and arms on the half-axles &c. engaging springs on or carried by the brackets. The construction is the same as that described in Specification 481,005 but the claims are different. Specification 480,969, [Group XXXI], also is referred to.
Patent GB-105309-A (GB)
IPC: F02M7/06
Abstract: 105,309. Fagard, J. Nov. 4, 1916. Spray carburettors.-In carburettors wherein an auxiliary " pick-up " nozzle is situated in the choke-tube and is fed from a well open to the atmosphere, the well is supplied from the float chamber through an upstanding tube the flow of fuel through which is automatically arrested as the suction increases and the main nozzle is brought into action. The main nozzle e is fed from the float chamber through the passage c and is surrounded by the auxiliary nozzle j fed from the bottom of the well a open to the atmosphere through a passage g and tube f and supplied from the float chamber through the upstanding tube b. A pilot nozzle m is also supplied from the well a through a tube n. As the throttle t is opened, the flow of fuel through the nozzle j lowers the level in the well a, and air is ultimately drawn through the tube f, which has the effect of arresting the flow of fuel through the tube b. In a modification, the tubes b, f are formed as a single tube with an orifice corresponding to the lower end of the tube f. In a further modification, the auxiliary nozzle enters the choke-tube at right-angles thereto. A restriction may be placed in the tube b, or in the passage c between the float chamber and tube b.
Patent GB-541494-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/34
Filed: 1940-06-18
Abstract: 541,494. Checking working of machines. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. June 18, 1940, No. 10541. [Class 106 (iv)] [Also in Group XVIII] Testing apparatus for checking the product of an automatic machine having indicating mechanism (for example a weighing mechanism for checking the weights of cigarettes delivered from a cigarette-making machine) comprises an electrically-operated signalling device (a lamp or bell), a switch in the signal circuit, switch-operating means stepped forward under control of the testing apparatus until after a pre-determined advance the signal is emitted, and resetting means for returning the switch-operating means to starting position at the end of a pre-determined number of testing operations. The invention is described in connection with the output from a cigarette-making machine wherein at regular intervals a cigarette is automatically weighed, and at each weighing operation the scale pointer 1 is pushed back by a presser 2 so as to trip one of a number of triggers 16 and thereby permit a corresponding counter 8, 9 &c. to add to its reading thus registering the number of cigarettes of correct, heavy, very heavy, light or very light weight, in addition to counting by similar action on a stirrup 27 the total number of cigarettes weighed. The counters are actuated through spring-urged levers 12 and the triggers 16 are reset after each counting movment by a cross bar 25. Each time an over- or under-weight cigarette is registered an extension 41 of the corresponding counter-actuating mechanism rocks a stirrup 40 carrying a pawl 39, and the pawl rocks a toothed lever 37 one step in a counter-clockwise direction. A mercury switch 43 operating a lamp or bell 42 is carried on the lever 37 so as to give a signal after a predetermined number of movements of the lever. On reaching its signalling position the lever 37 is retained by a catch in order to maintain the signal, but for a smaller number of incorrect cigarettes and a consequential reduction in the number of steps imparted to the switch 37 a signal is avoided by liberation of the pawl 39. The liberation is effected by pins 34 carried on a pin disc 33 attached to a ratchet wheel 32. The ratchet wheel is stepped forward by a pawl 31 actuated by a link 28 each time the cross bar 25 oscillates to reset the triggers 16. The lever 37 after release falls to its initial position against a stop 44. Specifications 420,755 and 425,700, [both in Group XVIII], are referred to.
Patent GB-730372-A (GB)
Title: Improvements relating to electrical impedance networks and their use for gain control and attenuation equalisation in telecommunication systems
Inventor: RALPH FRANK
IPC: H04B3/10
Filed: 1951-05-04
Abstract: 730,372. Automatic volume control. SIEMENS BROS., & CO., Ltd. May 2, 1952 [May 4, 1951], No. 10558/51. Class 40 (4). In a line transmission system subject to variations in attenuation by temperature and weather conditions, the level of a fixed frequency pilot current controls a variable attenuation equalizer constituted by the input impedance of a thermionic valve having feedback from the anode to the control grid. The equalizer may be connected either in shunt with the transmission line or across the negative feedback path of a line amplifier. As shown in Fig. 1, a multi-channel carrier transmission line is connected at a repeater over a fixed attenuation equalizer (not shown) and a pad PD to a line amplifier LA. The system may utilise four one-way channels and a pilot frequency current. On the outgoing side, the pilot signal is applied through a band-pass filter PF and an amplifier PA to an expander OE. In the expander, the pilot current is rectified and smoothed and acts in opposition to a reference voltage at terminals TV to control the oscillation amplitude of a tuned anode oscillator VE. The oscillator output is applied over a transformer TR to the heater of a thermistor TH in an impedance network N. The thermistor resistive element is connected in the cathode circuit of a pentode VN and controls both negative feedback and control grid potential. The pentode has feedback from anode to control grid over a blocking condenser QB and an impedance ZN comprising a resistance RA and a capacitance QA, while its input impedance between the control grid and the cathode circuit is effectively in shunt across the transmission line and is determined by the amplitude of the expander input to the thermistor. When the thermistor is cold, the valve is negatively biased beyond cut-off by current through a bleeder resistance RH. In an alternative arrangement, Fig. 4, the polarities of the rectified pilot current and the reference voltage in the expander are reversed so that the input impedance of the pentode falls with increased pilot current. This impedance is effectively connected in shunt with a negative feedback path FP of a line amplifier LA at terminals TN so that the degree of feedback and hence the amplifier gain is controlled by the pilot current level. In a modification to the impedance network N, Fig. 5, the impedance ZN comprises a resistance RA, condensers QA and QX and an inductance KA, while the expander output is rectified and smoothed and negatively biases the pentode at terminals TC. A similarly controlled hexode valve may alternatively be used, Fig. 6, the impedance ZN comprising a resistance RA, an inductance KA and a capacitance QA.
Patent GB-1286743-A (GB)
Title: Product/quotient deriving system
IPC: G01R19/10
Filed: 1970-03-05
Abstract: 1286743 Electric selective signalling MITSUBISHI DENKI KK 5 March 1970 [6 March 1969 2 April 1969] 10590/70 Headings G4D D7X D6Y D6C1 and D6C2 To derive the produce or quotient of two electrical quantities they are each converted into signals having a frequency proportional to or inversely proportional to the electrical quantities and the pulses of one frequency signal are counted for at least one period of the pulses of the other frequency signal. In the embodiment of Fig. 1 A in which the reactance X of the circuit is found, the reactive voltage E X  is converted into a voltage V E  proportional to it, this voltage being converted in an inversely proportional circuit 12a to a frequency signal f E  proportional to 1/V E . Current 1 is converted in a circuit 14 to a voltage V 1  proportional to it this voltage then being converted in an inversely proportional circuit 12b to a frequency f1 proportional to 1/V 1 . A counter circuit 16 counts the pulses of the frequency signal f 1  for one cycle of the pulses of the frequency f E  to give an output proportional to the reactance X. To measure the admittance Y of a circuit the voltage E is fed to the circuit 10 instead of the reactive voltage. By replacing one of the circuits 12 by a proportional circuit, power P and reactive power Q may be measured. Alternatively using two proportional circuits impedance may be measured.
Patent GB-831942-A (GB)
Title: Improvements in or relating to multi-coloured posts and the like
Inventor: ANDERSON LIONEL REX
IPC: E01F9/011
Filed: 1955-04-14
Abstract: 831.942. Posts, colouring. ANDERSON LEWIN & CO. Ltd., and ERINOID Ltd. April 10, 1956 [April 14, 1955], No. 10746/55. Class 20(1) [Also in Group XVIII] A traffic or sign post is coloured without painting by sliding over it lengths of different coloured sleeves of hard shock resistant plastic. The sleeves may have spigot and socket ends to joint into each other and they may be a loose fit on the post or may be secured by an adhesive at top and base.
Patent GB-1005949-A (GB)
Title: Molecular sieve adsorbents
IPC: C01B33/26
Filed: 1962-03-21
Abstract: A nitrogen-containing crystalline zeolite designated N-A and having the composition expressed in terms of moles of oxides: 1.0\sB0.1 R2O:Al2O3:4.25\sB1.75SiO2:0-7 H2O is prepared by forming an aqueous mixture comprising a methyl ammonium hydroxide, silicate ions and aluminate ions, heating the mixture at a temperature of from 25 DEG to 150 DEG  C. under autogenous pressure until the zeolite N-A crystals are formed, thereafter filtering off the zeolite crystals and washing them until the effluent wash water in equilibrium with the crystal has a pH of from 9 to 11.  The oxide mole ratios of the reactants present in the aqueous mixture are R2O/Al2O3 = 1.5 to 3.5. SiO2/Al2O3 = greater than 4 and up to 10. H2O/Al2O3 = 170 to 460. The zeolite preferably contains a small quantity of alkali metal cations in which case the zeolite has the formula 1.0\sB0.1 [(1 - n) R2O+XM2O]: Al2O3:4.25\sB1.75 SiO2:0-7 H2O, wherein M represents an alkali metal cation, X represents the alkali metal cation fraction of M within the crystal structure.  Alternatively, the formula may be written XR2O : 2M2O : Al2O3 : 2.5 t 4 SiO2 : 3.5-5.5 H2O, wherein X has the value 0.1 to 0.3, Z has a value from 0.7 to 1.  R is preferably the tetramethyl ammonium cation. X-ray diffraction data is provided.  Specification 777,232 is referred to.
Patent GB-542140-A (GB)
Title: Improved compositions derived from polymers of ethylene
IPC: C08L23/06
Filed: 1940-06-24
Abstract: 542,140. Polyethylene compositions. CHILD, C. L., HABGOOD, B. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 24, 1940, No. 10793. [Class 2 (iii)] Compositions of suitable consistency for working on a rubber mill are prepared by mixing solid polymers of ethylene which do not melt or soften below 100‹ C. with polyvinyl isobutyl ether. The mixing may be effected in an open two-roller mill or in an internal mixer of the kind used for the compounding of rubber. The compositions may be extruded, moulded and drawn, and may be used for the preparation of threads, tubes, films, coverings for chemical plant, stopcocks, gaskets, jointings or electrical insulation. Specifications 471,590, 514,687 and 528,970 are referred to.
Patent GB-240746-A (GB)
Title: Improvements in "lock nuts"
IPC: F16B39/36
Filed: 1925-04-25
Abstract: 240,746. Ross, W. T. April 25, 1925. Locking nuts. - A two-part nut lock of the type in which one part has a radially split conical extension which is compressed into engagement with the bolt threads on tightening up the other part, comprises a part 3 which is radially split from either end at 6, 7, and a co-operating locking member 5. The cuts 6, 7 extend over threequarters of the depth of the nut and are disposed alternately. The conical portion 4 of the member 3 is screw threaded with a finer thread than the bolt thread. A washer having radial extensions may be interposed between the two parts and the extensions thereon bent in opposite directions into engagement with the facets of the nuts, to form an additional locking means.
Patent GB-595433-A (GB)
Title: Improvements in or relating to electric time switches
IPC: G04C21/28
Filed: 1945-04-30
Abstract: 595,433. Time switches. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., and WHITESIDE, H. J. April 30, 1945, No. 10859. [Class 38(v)] Time - setting keys 17 are arranged at quarter-hour intervals around the periphery of a twelve-hour clock dial 15, to be selectively slidable into the path of a pawl 27, pivoted on a member 23, carried round by the hour-spindle of the clock mechanism 1, so that a lug 40 on the key engages and depresses the pawl, to close a micro-switch 4 for quarter of an hour, or a longer period if two or more adjacent keys are depressed. After the pawl has moved past the key, an axially-inclined ramp 26 on the member 23 engages a shoulder 41 on the lug 40, resetting the key in its inoperative position. The keys slide, between the limits of two shoulders 18, 19 thereon, in slots 16 in two discs 10, 11 in which they are retained radially by two rings 21, 22 and axially by a tensioned string 42. The pawl 27 is connected by a link 28 to one arm 33 of a spring-returned bell-crank lever, also carried on the member 23, so that its arm 34 engages a spring-returned disc 35, freely journalled on the hour-spindle. The microswitch is operated by engagement of its operating - member 6 with a tapered shoulder 7 on a spring-returned pin 8, which is moved axially by the disc 35, when the pawl 27 is depressed. To allow the valves of a radio receiver to warm-up, the pawl may be given a slight lead on the hour-hand, or the switch 4 may be movable about its pivot 5 by an adjusting screw 39. Additional indication of the position of the keys may be provided by a series of holes 44 through the plate 11, which are uncovered by flaps 46 to allow a light spot to shine through the translucent dial when the key is depressed.