baber/WOPTO huggingface dataset:
Patent GB-571489-A (GB)
Title: Improvements in or relating to control mechanism for variable speed gearing
IPC: B62M25/00
Filed: 1943-09-22
Abstract: 571,489. Twist-grip controls. BIRMINGHAM SMALL ARMS CO., Ltd., and MACCABE, D. A. Sept. 22, 1943, No. 15528. [Class 136 (i)] A twist-grip control for the variable-speed gearing of cycles &c. operating through a flexible cable 31 comprises a sleeve 1 rotatably mounted on the handlebar 3, a tube 13 in the sleeve connected to the cable 31, a support 7 fixed to the rotatable sleeve and having a cam follower 15 thereon confined in a cam slot 17 on the tube 13, and pin-and-slot connecting means 21, 19 between the handlebar and the tube 13 to prevent rotary movement of the tube. The outer end of the sleeve 1 is closed and carries by a nut 9 the support 7 having a spherical end 11 within and slidably supporting the tube 13. The slots 19 are formed in the inner end of the tube 13 and are engaged by a pin 19 mounted in the handlebar and passing through a circumferential slot in the sleeve 1 to limit the rotation of the sleeve. An end cap 27 on the tube 13 secures the cable 31 by a slot or gap to facilitate detachment. The cam slot 17 has depressions corresponding to the various gears and the sleeve 1 has indicating markings.
Patent GB-165032-A (GB)
Title: Improvements in endless conveyor belts
IPC: B65G15/30
Filed: 1921-06-06
Abstract: 165,032. Getting & A. Jonas, G. June 19, 1920, [Convention date]. Belts modified for troughing; flat endless-belt conveyers.-An endless-conveyer belt comprises leather strips 1 arranged side by side and connected by cross pins to which are attached metal or other plates constituting flanges and forming one or more longitudinal channels for the reception of goods while allowing the belt to bend when passing over guiding drums or pulleys. The belt may comprise several sets of leather strips 1 as shown or the strips may be continuous across the belt, and is provided with a continuous canvas, &c. web 6, Fig. 3. The plates 3 are slotted at their ends for the reception of the cross pins 2 and may be arranged at the sides only, or in three or more rows to form a plurality of channels. Driving or guiding pulleys may engage the top of the belt between two rows of plates, or the plates may be arranged to leave borders on the sides of the belt for engagement with the pulleys. Upright carrier-plates may be attached to the belt or to the side plates. In a modification, the plates 3 are centrally attached to the pins 2 and are provided with counter plates 8, Fig. 18, engaging the belt
Patent GB-232819-A (GB)
Title: Air cooled cigarettes or cigars
IPC: A24D1/00
Filed: 1924-06-30
Abstract: 232,819. Foster, A. W. June 30, 1924. Cigars and cigarettes are provided with an air passage formed by an axially arranged tube b of tobacco leaf or other combustible material permissible under the Pure Tobacco Act. The tube b may be perforated, as shown, and may extend only partly through the cigar or cigarette. In cigars the passage may be constricted at the end held in the mouth.
Patent GB-593933-A (GB)
Title: Improvements in or relating to auxiliary hand drives for pedal cycles
IPC: B62M1/12
Filed: 1945-06-20
Abstract: 593,933. Combined hand and foot driving mechanism. ENDERLIN, M. GUTZWILLER-. June 20, 1945, No. 15708. Convention date, April 29, 1944. [Class 136 (ii)] In an auxiliary hand drive for cycles of the kind in which the handle-bars 2, 3 are rotated in time with the step movement of the pedals and are connected with the pedal shaft through gearing 6, 8, 10 and 7, 9, 10 provided in a housing 1 in the handle-bar - and through connections 16, 17, the handle-bar arms consist of two parts, 2, 2a ; 3, 3a one slidable over the other to engage and disengage the gearing Each slidable part has a locking button 11 mounted on it which can be engaged with either of the grooves 12 or 13 formed in the shaft 4 to lock the part in either position. The shaft 4 carries a gear 6 and has a non-circular end which engages with a correspondingly shaped recess 15 in the slidable part.
Patent GB-1494238-A (GB)
Title: Desks and the like
IPC: A47B95/02
Filed: 1976-07-15
Abstract: 1494238 Handles; pen trays J R TAYLOR (WIGAN) Ltd 15 July 1976 [17 April 1975]  15793/75 Headings A4H and A4U  A pen tray slidably mounted in a structure such as a desk has its front undercut at: 13 to provide a depending lip 14 for manual withdrawal of the tray, the lip extending the full extent of the tray. The front edge of an adjacent panel 15 of the structure has a bevelled edge 17 to facilitate access to the lip 14. Releasable catches may hold the tray in its retracted position. The structure may be a cupboard or shelf. The tray may extend parallel to a side of the structure.
Patent GB-515264-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J31/50
Filed: 1938-05-27
Abstract: 515,264. Image intensifiers. LUBSZYNSKI, H. G. May 27, 1938, No. 15876. [Class 39 (i)] In an image intensifier using secondaryemitting grids as described in Specification 457,493, to prevent blurring of the amplified image the strength of the magnetic field, the potential applied to the electrodes and their spacings are co-related so that any primary electrons from the photo cathode P passing through the mesh of grid G<1> are focussed on to the grid G<2> after describing an integral number of revolutions ; any secondaries from the grid G<1> passing through the grid G<2> are similarly focussed on the grid G<3> and so on. Formulae given relating the distance between the electrodes to the applied voltages and magnetic field may take into account the emission energies of the secondary electrons. The multiplier may be designed with some spacings obtained by formulae ignoring these energies and -some spacings taking them into account.
Patent GB-628910-A (GB)
Title: Improvements in or relating to hitch mechanism for tractors
IPC: A01B59/042
Filed: 1947-06-17
Abstract: 628,910. Tractor couplings. FERGUSON Inc., H. June 17, 1947, No. 15908. Convention date, June 28, 1946. [Class 103 (v)] In a tractor hitch the drawbar 14 is normally connected by a pin 19 to a clevis 29A, 30A secured to the tractoframe below the rear axle. The drawbar 14 is supported by a guide-plate 16 having an integral cross-member 18A also connected to the clevis 29A, 30A by pin 19, the guide-plate 16 being itself supported by a pair of struts 43 connected to a mounting 47 above the axle. In order to prevent the drawbar 14 and guide-plate 16 being pulled away from the tractor due to pin 19 not being in place, lugs 60 on the cross-member 18A are arranged to engage in recesses 61 in the lower clevis plate 30A, and the ends of the guideplate 16 to abut under the projections 32B of a plate 32A bolted to the tractor frame, the arrangement being such that the guide-plate 17A cannot be tilted to disengage lugs 60 from recesses 61 so long as the struts 43 are still in place. Specification 626,328 is referred to.
Patent GB-1033616-A (GB)
Title: Electric starter mechanisms for internal combustion engines
Inventor: SEILLY ALEC HARRY
IPC: F02N15/06
Filed: 1962-04-26
Abstract: 1,033,616. Electrical engine starting mechanisms. C.A.V. Ltd. April 16, 1963 [April 26, 1962], No. 15922/62. Heading F1K. [Also in Division H2]  In an electric starter mechanism a spring 28 is compressed when tooth to tooth end engagement of pinion 22 and wheel 23 occurs so that a solenoid armature 25 may continue to move until a switch 36, 36a is closed thereby energising the rotor 12. When solenoid 24 is energized armature 25 is moved against the loading of spring 26 until ring 27 engages ring 29 to move pinion 22 into engagement with wheel 23. Rotation of pinion 22 by the rotor 12 after engagement allows it to move fully into engagement with wheel 23. Rotor 12 is mounted on tubular spindle 13 which carries commutator 15 and bearing bush 16 and is supported on spigot 17 from cap 18. A central shaft 14, helically engaged with the sleeve of pinion 22 has a forward extension 14a mounted in bearing 19 on cover 20. Pinion 22 is retained in its engaged or dis-engaged positions by balls 39 which engage recesses 41 or groove 40, balls 39 are retained by a spring-loaded sliding collar 37. Cover 20, a transparent polycarbonate, part 32, casing 10 and cap 18 are interconnected by bolts 31, (Fig. 2 not shown) on which are supported pivoted brush holders. Further brushes holders are mounted on pivots 34 extending from an annular carrier 35.
Patent GB-745121-A (GB)
Title: Improvements relating to bonding carbon to carbon or metal
IPC: H01R39/08
Filed: 1944-08-21
Abstract: Carbon is united to carbon by heating the parts in a substantially non oxidizing atmosphere in the presence of a metal which forms a carbide between the surfaces to be joined or is united to a metal by heating the carbon and metal surfaces in a substantially non-oxidizing atmosphere, the metal either itself forming a carbide between the surfaces or being provided with a metal carbide coating between the surfaces.  The carbon part which may be as graphite bound by a binder and in block, plate, rot, tube &c. form is placed adjacent the other part to which it is to be joined and both are heated by an atomic hydrogen welding apparatus which provides a reducing atmosphere.  If the other part is of carbon or of a metal e.g. tungsten which does not form a carbide under these conditions but is wet by a metal carbide, a rod of carbide forming metal e.g. molybdenum is used to provide the joining medium.  If the other part forms a carbide e.g. is of iron, nickel or molybdenum no such rod is necessary but may be used.  The hydrogen supply is continued during cooling.  To join carbon to copper which does not form or is not wet by a carbide the carbon is joined to a piece of molybdenum which is in turn soldered to the copper.  Such unions are suitable for electric conducting members and in electric arc devices.
Patent GB-572243-A (GB)
Title: Improvements in rotary reciprocating pumps
IPC: F04B49/12
Filed: 1943-09-29
Abstract: 572,243. Reciprocating pumps. GORDON, H. H. (Builder-Thompson Engineering & Research Corporation). Sept. 29, 1943, No. 15976. [Class 102 (i)] A multicylinder rotary reciprocating piston pump comprises a group of eccentrics actuating the pistons, the relative angular positions of the eccentrics being fixed and their radial positions with reference to the shaft carrying them are variable. The rotary cylinder block bears on longitudinal bearing portions at top and bottom and this divides the housing transversely into inlet and outlet chambers. The pistons are in radial pairs mounted on eccentrics 28 having rectangular openings fitting over squared portions on a shaft 35 supported at and near the ends on eccentrics 37 rotatable in eccentric 38, 138 which are themselves rotatable in rings 38b, 38c respectively carried by the rotor and forming part of the end cover 40 of the housing. Thrust balls 55 in the shaft ends bear on a surface on a flange 52 of the drive shaft 51 secured to the rotor and on an axially adjustable plate 57 in the end cover respectively. A bore 42 in the end cover contains a spring-pressed plunger 43 in which the shaft end is rotatably mounted. The pressure of the fluid is conveyed to the shaft and so to the plunger 43 which at high pressures is thus depressed causing relative rotation of the eccentrics 37, 38, 138 to reduce or cancel the eccentricity of the drive, the eccentrics 28 moving radially inwards, their relative angles being maintained by pin and slot connections. The plunger 43 may alternatively be manually adjusted by a threaded shaft.
Patent GB-485245-A (GB)
Title: Improvements in the manufacture of multi-ply belts
IPC: C14B9/00
Filed: 1937-06-09
Abstract: 485,245. Compound sheet materials. WEBB BELTING CO., Inc., J. A. June 9, 1937, No. 16029. Convention date, June 12, 1936. [Class 140] A machine for making multi-ply leather belts comprises means for applying cement to the plies, means for bringing together the cemented faces, and means for intermittently forwarding the plies to an intermittently operated platen press. One of the plies 17 may have its ends joined by clips, and be put under tension by a pulley 18. The plies, 12, 17, pass over positioning rollers 66, 67, respectively, and cement is applied by rollers 65, 69, dipping in a bath 73 and rotated against the direction of movement of the plies. The cemented faces are brought together on passing over a driven roll 71 and then pass between idler rolls 88, 87 to the forwarding rolls 14. The rolls 65, 66, 67, 69, 71 and 14 are connected by chains and sprockets, and operated intermittently by a system of electric switches and relays operated from the driving motor ; this throws in the clutch connecting the motor to the driving chains for the rolls, and operates the valve for the platen press 16 at such intervals that the plies are only forwarded when the press 16 is open.
Patent GB-384573-A (GB)
Title: Improvements in or relating to furnaces for superheating steam and other purposes
IPC: F22G5/02
Filed: 1932-06-07
Abstract: 384,573. Steam superheater &c. furnaces. SUPERHEATER CO., Ltd., Bush House, Aldwych, London.-(Compagnie des Surchauffeurs Soc. Anon. ; 3, Rue la B÷etie, Paris.) June 7, 1932, No. 16107. Addition to 365,926. [Class 51 (i).] In furnaces having means for returning combustion products to the heating chamber under the control of a thermostat influenced by the heating medium according to the parent Specification, the fuel supply is controlled by a thermostat influenced by the heated medium. The thermostats may also control the air supply to the furnace. As shown applied to an independently fired steam superheater fired by solid fuel a thermostat 14 at the inlet of the heating chamber 4 controls the speed of a fan 8 which withdraws the combustion gases and returns a portion of them through a duct 11 into a mixing chamber 12 where they mix with the gases from the combustion chamber 2. A damper 13 controls the distribution of the gases between the duct 11 and the chimney 10. A thermostat 16 in the superheated steam collector 17 controls through a connection 18 a travelling grate 21 and through a connection 28 a fan 23 supplying the air for combustion. The thermostat 14 also controls through a connection 27 a damper 26 determining the ratio between the primary and secondary air admitted below and above the grate through ducts 24, 25 respectively. In furnaces fired by liquid, gaseous or pulverulent fuel the thermostat 16 controls a valve in the fuel supply duct. The thermostats may be duplicated, one of each pair controlling the fuel supply or return of combustion products while the other controls the air supply.
Patent GB-512350-A (GB)
Title: Improvements in means for controlling the excitation of dynamo electric machines
IPC: H02K23/46
Filed: 1938-05-31
Abstract: 512,350. Dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd., and CARNEGIE, H. S. May 31, 1938, No. 16242. [Class 35] The exciter of a dynamo-electric machine has a field winding on a main pole carrying the load current or a shunted part of the load current and a magnetic shunt in good magnetic contact with the mair pole for diverting fron the exciter armature the flux produced by the field winding, this shun being adapted to be come saturated at a predetermined value of the current in the field winding whereby the fraction of the total flux produced by this winding passing through the armature is greater when the circuit is above this value than when it is below. The shunt 7 may connect adjacent pole-shoes as shown or may extend between the pole-shoes and the yoke. The Figure shows the invention applied to the compounding of a motor 1 supplied from a Ward-Leonard generator 2. The motor field winding 3 is supplied through a rheostat 10 from a constant voltage source 4 in series with an exciter 5, the field winding 6 of which is connected across an inductive shunt 11 in the armature circuit of the motor. Owing to the presence of the shunts 7, the compounding effect of the exciter is substantially zero until at a predetermined value of current in the winding 6, the shunts become saturated. The exciter may be driven by the motor 1 in which case the compounding effect varies with speed and also reversal of the armature connections is not necessary when the main motor is reversed. Should the motor regenerate, the exciter voltage will reverse so that the exciter 5 will act as a decompounding machine. The point of saturation of the shunts may be varied by adjusting the cross-sectional area or control coils on the shunts or on the poles may be fed through a rheostat from a source of constant voltage or from the generator 2. A further compounding exciter in the circuit of the motor field winding 3 may be controlled by a regulator acting in response to the current in the main motor circuit or to the E.M.F. of the exciter. The shunt may be arranged to deflect a part only of the flux to obtain some compounding over the whole range of operation. The exciter poles may extend beyond the shunts and the extensions provided with main coils for producing a constant flux through the armature. The appli- .cation of the invention to a machine coupled to a coiling or uncoiling reel for strip material is described. Specification 472,472 is referred to in the Provisional Specification.
Patent GB-853528-A (GB)
Title: Improvements relating to tufting machines
IPC: D05C15/00
Filed: 1958-10-09
Abstract: 853,528. Tufting machines. CARD, J. L. Oct. 9, 1958, No. 16276/60. Divided out of 853,527. Class 112 In a tufting machine a yielding, upwardlybiased member is adapted to clamp yarn against a needle or the needle bar when the latter is in raised position, and to release the yarn when the needle bar is in lowered position. As shown, the front end of a spring 57 encircles a needle 22 and is biased against the flat bottom end of the needle bar 21, the rear end of the spring being attached to the presser foot of the machine. The front edge 61 of the spring serves to clamp the yarn 59 against said bottom end when the needle bar is raised. In the lowered position of the needle bar, spring 57 pivots about the rear edge 60 of the needle bar to cause the front edge 61 of the spring to spread away from the front edge of the needle bar and unclamp the yarn. It is stated that by fixing spring 57 in a lower position and by extending the front edge 61 slightly beyond the front edge of the needle bar when the latter is in its lowered position, the front edge 61 will clamp the yarn against the needle instead of the bottom of the needle bar. The needle bar is adapted to be selectively disengaged from a carrier bar 18, as described in Specification 853,527, for producing a tufted pattern, by withdrawing a locking pin 43 from a notch 47 in the needle bar. Spring 57 then moves the needle bar upwardly to an inoperative position in contact with a fixed stop 63.
Patent GB-939705-A (GB)
Title: Improvements in or relating to safety straps for vehicles
Inventor: FRENCH ROGER
IPC: B60R22/12
Filed: 1961-05-05
Abstract: 939,705. Strap fastenings. THOMAS FRENCH & SONS Ltd. May 7, 1962 [May 5, 1961], No. 16303/61. Class 44. A fastener for securing the ends of pocketed webbing comprises a pair of spaced bars 12 joined by lugs 13 and a pin 14. One bar 12 is passed through a pocket at one end of the webbing and the pin 14 is passed through any pocket of the other end of the webbing and through the lugs 13 to join the ends together. The fastener may be used as an anchorage for one end of the webbing or to attach to the webbing, a conventional quick release buckle.
Patent GB-166799-A (GB)
Title: Improvements in means for re-inforcing asbestos paper
IPC: D21H27/38
Filed: 1920-06-17
Abstract: 166,799. Turner Bros. Asbestos Co., Ltd., and Fox, J. June 17, 1920. Electric insulating paper; compound paper; fire-proof paper.-This asbestos paper suitable for insulating-material or tape for electrical purposes is reinforced with Japanese tissue paper secured thereto by starch, gum, varnish, shellac, size, or the like. A layer of either paper may be faced on one or both sides with the other and advantage is taken of the strength of the Japanese tissue paper in the direction of its fibres, which may be crossed where two thicknesses are used.
Patent GB-956773-A (GB)
Title: Navigation systems
Inventor: COOLEY AUSTIN G
IPC: G01S11/08
Filed: 1960-05-10
Abstract: 956,773. Radio navigation. TIMES FACSIMILE CORPORATION. May 10, 1960, No. 16483/60. Heading H4D. Relates to a radio distance measuring system in which the distance of a craft from a fixed station transmitting a highly stable frequency f c/s. is determined on the craft as a function of the phase difference between the signal received from the fixed transmitter and an output of frequency f from a highly stable local oscillator on the craft, the oscillator having been synchronized with the transmitter when the craft is at a known distance from the transmitter. According to the present invention additional stable frequencies nf and f/n (e.g. n=10) are transmitted and are derived from the local oscillator to provide additional fine and coarse distance indications. As described the local signals nf and f/n are derived from the local oscillator by frequency multiplication and division. The transmitted frequencies f, nf and f/n may be produced in a similar manner and transmitted as modulation signals on a carrier, Fig. 3 (not shown), or they may be transmitted as the frequency differences between a stable RF signal of frequency Nf (e.g. N=1000) and stable RF signals (N-1)f, (N-n)f and (N-1/n)f respectively which are derived from a stable oscillator of frequency f by frequency multiplication and division as shown in Fig. 1. The three pairs of comparison signals may be applied (1) simultaneously to respective C.R.T. phase indicators, Fig. 2 (not shown), or (2) sequentially to a single-phase comparator. In order that the measured phase difference may be expressed directly in distance units, the frequency is selected so that 100 f is equal to the number of distance units travelled by the transmitted waves in one second, e.g. for distance in miles, f =1.863 c/s.