baber/WOPTO huggingface dataset:
Patent GB-664247-A (GB)
Title: Improvements in or relating to classifying equipment
IPC: G06G7/163
Filed: 1948-08-13
Abstract: 664,247. Photo-electric sorting-apparatus. KOLISCH, E., and COHEN, E. Aug. 13, 1948. [Sept. 27, 1947] No. 21398/48. Class 40 (i). [Also in Groups XXXVI and XL (b)] To compute the product of, for example, three numbers three tapped resistances connected in parallel circuits have their sections arranged so that the current in each circuit is proportional to the logarithm of the number of tappings shorted out and the total supply current i.e. the product, is indicated on a meter with an antilog. scale. The invention is described with reference to a volume measuring machine in which photocells arranged in equally spaced rows on the side and bottom of a chamber are obscured by a package to control the number of steps cut out in 'length', 'height' and 'width' resistors ; but the Specification states (i) that the photo cells may be replaced by feeler switches, and (ii) that the resistances may be controlled by the keyboard of a computing machine. Computing volume of a package. Assuming supply switches SW, 1, 2, closed and the leading edge of a one-unit-cube-package passing through the chamber 11 obscures cell PC-1 ; starting relay R-1 in section I drops out to complete the negative supply to the photo-cell bus-bars 89 ... 92 and 94 ... 97 in sections II and III. At this instant the package will obscure cells PC-4 and PC-5 in sections I and III respectively but all the other cells will be illuminated causing all the relays except R4 and R5 to pick up and complete a holding circuit over their contacts HC. (All six cells in each row have to be illuminated to energise a relay in section III). Relay R4 down closes contacts C-L, C-H, to short out sections RL-1, Rh-1 of the length and height resistors, while relay R5 down shorts section RW-1 of the width resistor. As the package leaves the chamber PC-2 is obscured causing R2 to drop out and re-energise R1, thereby de-energising the measuring photo-cells in the chamber before PC 4 and PC 5 are uncovered, but the relay holding circuits are maintained so that the length, height, and width are shown by meters M-L, M-H, M-W, in the three resistor circuits and the volume (total current) is shown by meter M-V, until the next package entering the chamber obscures PC-3 to drop out R-3 momentarily and break the holding circuits.
Patent GB-571121-A (GB)
Title: Improvements in and relating to electromagnetic relays and electric coil structures therefor
IPC: H01H50/36
Filed: 1943-12-23
Abstract: 571,121. Electromagnetic and thermal relays. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 23, 1943, No. 21520. Convention date, Dec. 29, 1942. [Class 38 (v)] An electromagnetic relay with a core 10 and winding 14 has also a magnetic shunt 16 adjacent the inner turns of the winding but spaced from the core. By suitably proportioning the dimensions of the shunt the current rating of the relay is varied and thus a series of relays of the same size and shape and with the same number of turns may be prepared having different current ratings. The shunt 16 may comprise a cylindrical member with a longitudinal gap or a plurality of turns of thin magnetisable material interwound with insulating material. The invention is shown applied to a relay of the type shown in Specification 450,298 wherein a primary winding 14 induces currents in a cylindrical conductor 13 which becomes hot and causes a bimetal strip 12 to move and operate contacts.
Patent GB-824634-A (GB)
Title: Improvements in or relating to hydraulic jacks
IPC: B66F3/42
Filed: 1958-07-04
Abstract: 824,634. Hydraulic jacks. SOC. INDUSTRIELLE POUR LA FABRICATION DES CINTREUSES MINGORIS.I.C. July 4, 1958 [July 18, 1957], No. 21542/58. Class 69 (2). [Also in Group XXX] An hydraulic jack 15 is actuated by liquid supplied by a hand pump 5 having a differential piston operating in chambers 8, 9 connected by passages 10, 11 to chambers 18, 17 of the jack. Passages 10, 11 are connected by by-passes 24, 25 to a valve chamber 14 leading to a reservoir 1. A valve member 13 is positionable to block either by-pass and to open the other to exhaust so that operation of the pump actuates the jack piston in either direction. At the end of a working (extension) stroke the jack piston uncovers a safety valve 29 to limit the pressure in line 11, a collar 27 on the piston forming a definite stop. During a return stroke the pressure of liquid is limited by the safety valve 29, and hence the pressure in chamber 8 is always limited to this value. Since this is the only pump chamber from which liquid can leak to the exterior, sealing of the pump piston can be readily effected.
Patent GB-464182-A (GB)
Title: Manufacture of boron carbides
IPC: C01B31/36
Filed: 1936-08-05
Abstract: Boron carbide is obtained by subjecting a mixture of carbon and boric acid to fusion by electrothermic heating, comminuting the resulting mass, mixing a further quantity of boric acid with it and then heating the mixture to fusion electrothermically.  A metal capable of forming a carbide or a compound of such a metal or a mixture of such metals or compounds may be added to the parent materials or to the intermediate product.  Suitable metals include aluminium, titanium and manganese.  The heating operations are preferably conducted in an electric arc furnace.  The process may be conducted under raised pressure and with the addition of substances promoting fusion and carbide formation.  The carbon may be in the form of wood charcoal.ALSO:Mixed carbides containing boron carbide are obtained by subjecting a mixture of carbon and boric acid to fusion by electrothermic heating, comminuting the resulting mass, mixing a further quantity of boric acid with it and then heating the mixture to fusion electrothermically, a metal capable of forming a carbide, or a compound of such a metal, or a mixture of such compounds or metals being added to the parent materials or to the intermediate product.  Suitable metals include aluminium, titanium and manganese. The process may be conducted under raised pressure and with the addition of substances which promote fusion and the formation of carbide.  The carbon may be in the form of wood charcoal.
Patent GB-153994-A (GB)
Title: Improvements relating to steel derricks and poles
IPC: F16B7/00
Filed: 1919-09-03
Abstract: 153,994. Spencer, Ltd., J., and Spencer, Sir T. H. Sept. 3, 1919. Joints formed by welding, -In sectional steel derricks and like tubular standards, adjacent sections are joined by forming swaged portions near one or both of the extremities of the members so that one member telescopically engages the next, the shoulders g preventing the pole from collapsing under load. The shoulders g and edges l are preferably welded as at k.
Patent GB-653979-A (GB)
Title: Improvements in the stabilizing of the frequency of microwave oscillations
IPC: H03L7/26
Filed: 1948-08-16
Abstract: 653,979. Automatic frequency control systems. RADIO CORPORATION OF AMERICA. Aug. 16, 1948, No. 21601. Convention date, Nov. 18, 1947. [Class 38 (iv)] The frequency of a micro-wave source is stabilized by apparatus using the property of various gases to absorb waves of defined frequencies in this range. For example the output from a reflex klystron may pass through a wave-guide 21 having a gas enclosed between partitions 23 and 25. A crystal rectifier 29 is situated after the gas chamber and a further rectifier 43 is placed in a length of guide 39 coupled in unidirectional manner to guide 21 before the gas chamber. The outputs of these detectors are differentially combined across a resistor 13 to provide a voltage for the reflector electrode 9 of the klystron and this control its frequency of generation. If the latter is such that operation occurs on one of the slopes of a peak in the absorption frequency graph of the gas, the controlling voltage will have a stabilizing effect. In the case of a magnetron, a known method of frequency control by directing an electron beam across a cavity can be employed. The controlling voltage of this beam may be provided from a balanced modulator keyed to a low frequency. Signals are supplied to this modulator from two channels similar to those in the construction previously described but a low-frequency modulation mechanically synchronized to the modulator may be applied to each path. Reference has been directed by the Comptroller to Specification 663,065, [Group XL (b)].
Patent GB-1495773-A (GB)
Title: Automatic reproduced picture control circuits
IPC: H04N9/68
Filed: 1975-05-20
Abstract: 1495773 Television SONY CORP 20 May 1975 [20 May 1974] 21603/75 Heading H4F An automatic system for controlling a television picture in response to ambient light conditions includes a photodetector 1, Fig. 1, which controls the impedance value of a transistor T coupled to a variable resistance R3. The voltage on the wiper of resistance R3 is used to control contrast in circuit 3 and colour saturation in circuit 4. The device may be switched (SW1) to a manual mode wherein the control is effected by means of the variable resistor R3, Fig. 1. An indicating lamp 6 is energized in the automatic mode. In a further embodiment Fig. 2 (not shown) additional components enable the device to function correctly when the contrast and saturation controls are improperly set. This latter embodiment provides by way of ganged switches (SU2, SU3) a voltage controlled brightness control signal in addition to the other control signals.
Patent GB-652951-A (GB)
Title: Improvements in or relating to tennis or like rackets
IPC: A63B49/14
Filed: 1948-08-16
Abstract: 652,951. Tennis rackets. TRIBELHORN, E. Aug. 16, 1948, No. 21623. [Class 132 (ii)] In a tennis racket having cat gut stringing 5, the stringing round the frame 1 being protected from damage, damp and temperature by a peripheral strip 6 of vulcanized fibre, or synthetic resin, either solid or laminated, lying in a groove 3, the strip is secured to the frame by nuts and screws 7 passing radially through the frame. The stringing lies in a groove 2. The frame 1 may be laminated and may include a reinforcing strip 10 of steel or aluminium alloy which may be ribbed.
Patent GB-318237-A (GB)
Title: Improvements in or relating to fuel feed pumps for multicylinder internal combustion engines
IPC: F02D1/00
Filed: 1929-07-15
Abstract: 318,237. Bosch Akt.-Ges., R. Aug. 31, 1928, [Convention date]. Regulating delivery by bye-passes; regulating delivery of two or more combined pumps.-In multi-cylinder internal-combustion engines common means are provided for operating a number of devices regulating the delivery of a number of fuel pumps. In one form, the delivery of the pumps a - - d is regulated by slots s in the plungers e - - h -which, during the delivery stroke, connect the pump barrels to the inlet pipe i by means of ducts p, the moment of opening of which is controlled by inclined edges q on the slots s. By rotating the plungers by the common rack n engaging pinions on the plungers, the moment of opening of the ports p of all the pumps is simultaneously adjusted. The edges q of the pumps b, c may be shorter than those of the pumps a, d, so that, during the rotation of the plungers by the rack n, the pumps b, c cease delivery before the pumps a, d. In the form shown in Fig. 3, the rack is in two parts t, u connected by a tension spring z, the two parts moving together during adjustment until a stop 10 on the part u engages a fixed stop 11. The part t then moves alone and adjusts the pumps a, b to zero delivery, while pumps c, d continue to feed two of the engine cylinders. In another form, the part u is connected to a control provided with a stop, while the part t is connected to another control by which the delivery of pumps a, b may be reduced to zero.
Patent GB-982672-A (GB)
Title: Improvements in and relating to micro level meters
Inventor: ANTIER GUY
IPC: G01F23/62
Filed: 1963-05-30
Abstract: 982, 672. Comparing liquid levels electrically. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 30, 1963 [May 30, 1962], No. 21769/63. Heading G1N. Apparatus for measuring the difference between the level of liquids in two adjacent containers 2, 3 (Fig. 6) comprises a float 14, 15 in each liquid, the one 14 controlling the vertical position of the coil assembly of a differential transformer 18, and the other 15 controlling the vertical position of the core 20 of the transformer, whereby the transformer output is indicative of the difference in liquid levels. Mechanical means (Fig. 7, not shown), are provided for preventing lateral movement between the float assemblies.
Patent GB-1435391-A (GB)
Title: Controllable drive systems
IPC: H02P7/288
Filed: 1972-05-09
Abstract: 1435391 Resistance networks SELECTROMICRO CO Ltd 8 May 1973 [9 May 1972] 21855/73 Heading H3U [Also in Division H2] A variable resistor has its end terminals directly connected together and to a supply with its movable arm connectible to a motor load so that at the centre point of its travel maximum resistance is obtained and this decreases with movement in either direction. In the arrangement down the arm P of the variable resistor also is mechanically connected to a reversing switch SW1 and is turned from the central portion shown to operate switch SW1 and apply an increasing applied voltage at the junction of R4, R5 until threshold switch SW2 operates and the motor runs up to speed in one direction. The voltage from tachometer T opposes the applied voltage and so provides a stabilizing action. The motor is stopped by returning the arm P to the central position and reversed by movement in the opposite direction.
Patent GB-375591-A (GB)
Title: Improvements relating to motor vehicle bodies
IPC: G05G25/04
Filed: 1931-07-31
Abstract: 375,591. Securing mats &c. to floors. RILEY, A., Aldbourne Works, Widdrington Road, Coventry. July 31, 1931, No. 21881. [Class 142 (iv).] In closed bodies of motor vehicles that part of the body which is adjacent to the engine compartment is provided with a covering which has a draught-proof engagement with the body or floor boards around its edges and also with the pedals, steering column, &c. Fig. 1 shows a body in which a covering 5 of indiarubber, leather, &c. is secured to the rear edge of the shelf 4 and covers the vertical wall 3, ramp 2 and floor 6 together with the side walls 7. Fig. 7 shows a vehicle in which the cover 26 extends up to a board 30 and seals the edges by means of beading 27, held in grooves 28 by rods 29. A divided plate 31 is provided for the board 30 and by means of its flanges presses down on to the cover 26 to seal the floor. In another form the cover 26 may be provided at its edges and at apertures therein with beadings 37 adapted to be pressed into channels 39 arranged in grooves 40 in the floor and sides.
Patent GB-1080354-A (GB)
Title: Improvements in or relating to electric switchgear
Inventor: BIRT JOHN ROBERT
IPC: H01H33/46
Filed: 1964-05-27
Abstract: 1,080,354. Gas blast switches. ENGLISH ELECTRIC CO. Ltd. May 21, 1965 [May 27, 1964], No. 21892/64. Heading H2B. An air blast circuit breaker has a central metal casing 10 and a pair of interrupting units 12 extending from opposite sides thereof, each unit having a fixed contact 22 at the end remote from the metal casing 10 and a movable hollow contact 23 slidable in a tube 48 under the control of a piston and cylinder operating device 63 with a piston rod 56 movable perpendicularly to the contact 23, the wall of unit 12 and the tube 48 defining a first chamber 112 in permanent communication with a source of compressed air and a second chamber 113 connected thereto only when the contacts are open and which can be vented through an annular blast valve 57 surrounding the piston rod 56. The contact arrangement is as described in Specifications 960,402; 919,843 and the insulating walls of the units 12 are as described in Specification 1,022,291. The contacts 23 are coupled to rod 56 through cranks 54 sealingly mounted in a wall 114 between chambers 112, 113 and connected by links 92 to torsion spring assemblies (90) (Figs. 5, 6, not shown) providing snap action. The blast valve 57 and the operating device 63 are controlled by a valve arrangement similar to that described in Specification 1,023,151 (Fig. 8, not shown).
Patent GB-445079-A (GB)
Title: Paper carriage for typewriters
IPC: B41J11/14
Filed: 1935-01-29
Abstract: 445,079. Typewriters. PAILLARD & CIE, SOC. ANON., E., Yverdon, Vaud, Switzerland. Jan. 29, 1935, No. 22006. Convention date, July 30, 1934. Divided out of 445,059. [Class 100 (iv)] Paper-carriages ; carriageshift mechanism.-To permit of adjustment of the platen with respect to the typelevers, the entire carriage is adjustably mounted on an inclined surface formed on a transverse bar. The bar may be mounted on pivots and connected to shift-keys. The carriage 54, shown in the Figure, is supported by means of balls 56 on an inclined rail 7 which is adjustably secured by screws 9 to the inclined top of a transverse bar 8. Adjustment of the rail adjusts the platen 6 with respect to the typelevers 37. The bar is provided with arms 79 which are arranged between pairs 89, 89<1> of adjustable stops and are connected by links 91 to shift-keys U. The arms are normally retained in contact with the stops 89 by gravity, springs being unnecessary. The bar carries a spring drum 76, and a stop 78 which co-operates with margin stops 68 on the carriage. Ruling; card - guiding arrangements.-A vibrator-supporting bracket 81 on the bar 8 is formed with a card-holding finger having an aperture for receiving a pencil when used for ruling lines.
Patent GB-655398-A (GB)
Title: Shaker conveyor drive construction
IPC: B65G27/00
Filed: 1947-08-08
Abstract: 655,398. Shaker conveyer drive. JOY MANUFACTURING CO. Aug. 8, 1947, No. 22063. Convention date, Aug. 14, 1941. [Class 78 (i)] A shaker conveyer drive includes a base-plate 6, a crank 18 and means 10 for driving the same mounted on said base-plate, spring driving mechanism 24-25 operatively connected to said crank, a rocker arm 35 pivotally mounted on an oscillating shaft on said base-plate and oscillatably supporting said spring driving mechanism and a conveyer drive trough 8 located at one side of said spring driving mechanism and connected to a second rocker arm fixed to said shaft. Figs. 1, 2, 3.-The drive of motor 10, which is supported on plate 11 pivoted at 12 to baseplate 6 and is adjusted by tie-rod 19, passes through belt 15 to pulley 16 and through reducing gear 17 and crank 18 to reciprocating puller rod 21. The latter motivates slidable cross-head 23 between springs 24-25, the tension of which can be adjusted by nut 28 to vary the characteristic of the stroke, the crosshead having a bolt 39 journalled therein and the bolt connecting with rocker arms 35 fixed to sleeve 36 fixed to shaft 30 which turns in bearings 32 so that shaft 30 is caused to rock about 32. Bearings 32 are formed on arms 31 adjustably bolted at 34 to base 6, the adjustment varying the speed of conveyance of the material. On shaft 30 is fixed arm 40 which is pivotally connected to trough 7 at 43 so that the rocking of shaft 30 causes reciprocations of the shaker trough. Trough 7 is also supported by and moved upon upright arms 46 pivoted between trough and base-plate, and the length of the arms 46 are adjusted by bolts 50 to alter the inclination of the troughs.
Patent GB-286979-A (GB)
Title: Improvements in and relating to conveying devices
IPC: B65G65/00
Filed: 1927-08-22
Abstract: 286,979. Eickhoff, A., (trading as Eickhoff Maschinenfabrik, Geb.). July 27, 1927, [Convention date]. Jigging conveyers.-The supply of material to a jigging conveyer r is facilitated by a ramp a which may be stationary, or connected to the conveyer, or driven by a motor. When the conveyer and ramp are connected, the direction of movement of the conveyer is oblique to its length. When the ramp has its own driving means, its movement is directed obliquely towards the conveyer. The wall r<1> of the trough is higher than the wall adjacent to the ramp.
Patent GB-423713-A (GB)
Title: Improvements relating to rasping machines for use in the manufacture of footwear
IPC: A43D95/08
Filed: 1934-07-30
Abstract: 423,713. Rasping boot - soles &c. COMPO SHOE MACHINERY CORPORATION, 565, 5th Avenue, New York, U.S.A. July 30, 1934, No. 22164. Convention date, Dec. 13, 1933. [Class 83 (iii)] A rasping-machine, particularly for smoothing and removing cement from the insole of a shoe S, comprises an electric motor 10 mounted on a pedestal 16 secured to a bench and driving through a flexible shaft 13 an endworking button-rasp 15. A member 11 connects the motor to a curved rigid casing 12 which encloses the flexible shaft, the latter being connected to the motor shaft by a coupling 20. At the other end the shaft carries a coupling 27 which is slidably keyed into a short shaft 28 connected by bevel gears 36, 37 to the rasp. To remove a rasp, it is held by the operator and the motor spindle turned by means of a head 40. An electric lamp 41 mounted by means of a clip 43 on the casing serves to illuminate the work.
Patent GB-924149-A (GB)
Title: Improvements in or relating to steam condensation and water cooling apparatus
Inventor: RIPLEY GEORGE
IPC: F28F25/08
Filed: 1959-06-30
Abstract: 924,149. Cooling towers. DAVENPORT ENGINEERING CO. Ltd. June 21, 1960 [June 30, 1959], No. 22339/59. Class 64 (1). A cooling tower is provided with grid or packing units, each consisting of a plurality of corrugated members 2 and of flat members arranged or secured together on alternate relationship to form a stack, a flat member lying between two corrugated members. The members 2 and 3 are arranged in grid units which are superimposed in tiers on other units. The grid units of one tier being arranged in the vertical plane to lie at right-angles to the units of the next tier. Members 2 and 3 can be stacked with or without the aid of bolts. The corrugations can be disposed with some horizontal and others running at right-angles, i.e. vertically. Some units project above the others, thus serving as supports.