baber/WOPTO huggingface dataset:
Patent GB-761952-A (GB)
Title: Improvements in or relating to record card controlled statistical machines
Inventor: BALDWIN RICHARD EVEREST
Filed: 1954-11-02
Abstract: 761,952. Statistical apparatus. POWERSSAMAS ACCOUNTING MACHINES, Ltd. Aug. 8, 1955 [Nov. 2, 1954], No. 31727/54. Class 106 (1). Apparatus for sensing normal or interstage data indicating positions on moving record cards comprises feeding means to move a card with a continuous movement past a sensing position and card locating means disposed at a position in advance of the sensing means and arranged to determine whether the card is presented to the sensing means for sensing in normal or interstage positions thereof. In the form of Figs. 7, 8 the card passes from the magazine, between forwarding rollers to a position between guideplates 16, 17 where it is arrested by a light spring bearing on it. The rear edge of the card is then engaged by a card feeding device 41 adapted to be lowered into the path of the card and then moved in a straight line towards the sensing rollers 18, 19. The feeding device comprises a pair of rearwardly-extending arms 41a secured to a bridge-piece 42 which is pivoted at 43 to levers 44 fixed to a rocking shaft 45. The arms 41a are urged by a spring 60 to rotate in the clockwise direction but are lifted at the rearward end of the stroke by abutment between a lug 63 on bridge-piece 42 and surface 64 of a plate 62 attached to one of levers 44. The shaft 45 is rocked to cause the feeding means to advance the card, by a two-armed lever 47, Fig. 5, having a pin 49 engaged in a slot 50 in an arm 46 secured to shaft 45. The other arm of lever 47 is attached to a link 51, the lower end of which is urged by a spring into contact with a cam rotating in time with the rotation of the sensing rollers. The axis of lever 47 can be displaced by rotating eccentric 48 and this causes the starting and finishing points of the stroke of the feeding device 41 to be moved towards or away from the sensing rollers 18, 19. Thus by adjusting eccentric 48 the relative position at which the card is presented to the sensing rollers is adjusted so that the sensing pins 35 register with normal or interstage positions. Means are provided for aligning the card during its movement towards the sensing rollers. These consist of a pair of blades mounted on pivotal arms about axis 43 and adapted to engage the ends of the card. The blades are convergent, one towards the other, and are lowered by sliding along a sloping cam surface during the stroke of the feeding member so as to engage the card and move it into a central position. In another form, the card magazine and the picker for feeding the cards one at a time are mounted for sliding movement towards and away from the first feed rollers. The position of the magazine and picker mechanism is adjusted by rotation of an eccentric to cause the card to be presented to the sensing rollers for sensing in normal or interstage positions. Other sensing means, e.g., brushes, may be used.
Patent GB-192841-A (GB)
Title: Improvements in four-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1921-11-28
Abstract: 192,841. Holderness, W. C. Nov. 28, 1921. Cylinders, clearance spaces of.-In four-strokeengines having L-shaped cylinder heads which are water-jacketed the cylinder end 6 or the piston head or both are inclined to form a wedge - shaped clearance space 5 the wider end of the wedge being next to the inlet valve 3. The piston top when inclined may be convex or concave and the horizontal centre line, of the piston may pass through the inlet valve.
Patent GB-333457-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: H05B3/66
Filed: 1929-10-21
Abstract: 333,457. British Thomson-Houston Co., Ltd., (Assignees of Ipsen, C. L., and Otis, A. N.). Oct. 23, 1028, [Convention date]. Resistance furnaces. - The heating element consists of a metallic ribbon arranged in a number of sets of loops on an elongated frame, successive sets of loops being connected at the middle of the frame and the sides alternatively. The frame consists of side members 21, 21a connected by bolts 23 and insulating bars 22. The ribbon 20 is supported in notches, in the bars 22. Upright members 27 secured to the members 21, 21a support bars 28 of insulating material which secure the ribbon in place. Longitudinal displacement of the. ribbon is prevented by pieces 34, 35 secured to it and to the terminal pieces 32, 33, the pieces 34, 35 being too large to pass through the slots in the end bar 22. The heating- element is supported on bars 18 in a lagged chamber 10, and can be inserted and withdrawn through an opening with an insulating closure 15. A wire-cloth conveyer 19 passes through the chamber above the heating-element being supported at its edges on angle-irons 19a.
Patent GB-490926-A (GB)
Title: Improved method of control for electric vehicles, lifts, cranes and the like
IPC: H02P25/12
Filed: 1936-11-23
Abstract: 490,926. Field control of D.C. motors; exciting dynamo electric machines. MURPHY, L. Nov. 23, 1936, No. 31986. [Class 38 (iii)] [Also in Group XXXV] The shunt field 4 of a motor operating a vehicle lift or crane is supplied from an additional brush or brushes 3, which may be shifted around the commutator to vary the speed of the motor, while a series field 5 is under the control of a switch 9 operating automatically in accordance with the armature current to short-circuit or reduce the effective number of turns of the series winding for values of armature current within a certain range. Thus the machine operates as a compound-wound machine for values of armature current outside the said range, but as a shunt-wound machine or a compoundwound machine with a weak series field for value of armature current within the said range. The armature current passes through an operating coil 6 which is effective to open the switch 9 against the action of a spring 11 when the current attains a predetermined value. When a pedal or hand lever is operated the motor is brought up to say 30 per cent normal speed by resistance control or series-parallel control of field or armature windings, the shunt field being at a maximum. The switch 9 is effective to cause acceleration of the motor as a compound-wound machine while the current is in excess of the predetermined value, and as a shunt-wound machine when the current falls below that value. Further to increase the speed an accelerator pedal or thumb lever is operated to move the brush 3 against the bias of a spring, regenerative braking ensuing when the brush returns, or when the motor is over driven. The switch 9 may be polarized or non-polarized and may thus function either during motoring or regenerating conditions or both. A friction brake may be provided. The ends of the shunt field may span the portion of the commutator corresponding to the magnetically crowded portion of the armature during generator operation. The control system may be used in combination with a power unit such as a petrol engine which supplies an average amount of power, the controlled dynamoelectric machine acting to load or assist it as required.
Patent GB-1240102-A (GB)
Title: Improvements in and relating to machine tools
Inventor: JONES WILLIAM OWEN MCKENZIE
IPC: B23B29/24
Filed: 1967-07-12
Abstract: 1,240,102. Tool holding apparatus. W. O. M. JONES. 16 July, 1968 [12 July, 1967], No. 32032/67. Heading B3T. In a machine tool such as a lathe there is provided tool carrying means which comprises a pair of endless chains 40 which releasably support each of a plurality of tools or tool-holders 18, the chains being mounted on sprockets 42, 44 and 46 and 48 which are driven through gears from a motor 52 whereby each tool or tool holder is moved consecutively to and clamped in a tool station 14. Plungers 56 on the chains engage the tool holders to effect support and movement thereof and an adjustable stop 62 facilitates the precise position of the tool or holder in the tool station. The apparatus is supported on rail members 20, 20 in hydrostatic bearings which permit accurate alignment of the apparatus during the feed movements of the tool. The tools or tool holders may be preset at a location away from the machine tool and the face 72, dovetail 64 and stop 62 on the work station correspond to those reference planes to which the tools have been preset whereby the tools when clamped in the station 14 are in the precise position required in use. Pneumatic means are provided for clamping the tool or holder in the station 14, for maintaining a predetermined tension in the chains and for actuating the stop 62 and wedge clamp 66. Means is also provided to supply coolant or cutting fluid and/or air to the cutting tool when in use. (For Figures see next page.)
Patent GB-262602-A (GB)
Title: Insole, for shoes, provided with an attachment to protect the heel
IPC: A43B23/28
Filed: 1925-12-19
Abstract: 262,602. Meurling, H. F. V. Dec. 19, 1925. Socks. - A sock is provided with a heel attachment which is turned up to protect the heel, and is constructed as to its dimensions in very strict proportions with the rest of the sock. A line A N is drawn touching the inside edge of the sock. At the point of contact A a line A B is drawn at right angles and bisected at C. A line T D is drawn at right angles through this point C and bounds the heel attachment at D. A line P E is drawn touching the outside of the sock and a line E F at right angles to it and bisected at M. A line K R is then drawn through M at right angles. The lines K R and T D intersect at S making, it is stated, a constant angle V about 8‹. The line R K is the centre line of the heel attachment which is made one seventh of the length of the sock. Specifications 17791/96, 118,238, and 243,072 are referred to.
Patent GB-972174-A (GB)
Title: Improvements in the production of laminated films
IPC: B32B27/00
Filed: 1962-08-21
Abstract: 972,174. Laminates. E. I. DU PONT DE NEMOURS & CO. Aug. 21, 1962 [Aug. 22, 1961], No. 32118/62. Heading B5N. A process for the production of laminated regenerated cellulose or hydrophilic cellulose derivative films comprises applying to the sheets or films a partially polymerized anchorage resin to provide 0.15-2% of the weight of the final laminate, applying to at least one surface of at least one sheet of each pair to be laminated an aqueous solution containing at least 0.1%, based on the weight of the dry laminate of the two sheets, of a water-soluble organic acid of ionization constant 10<SP>-2</SP>-10<SP>-6</SP>, pressing the sheets together so that at least one of each pair of adjacent surfaces carries the acid solution, and heating the assembly to cure the resin. Examples of the resin are urea-formaldehyde, melamine formaldehyde, melamine-urea-formaldehyde, guanidine-urea-formaldehyde, and melamine - formaldehyde - polyethylene - polyamine. The preferred group of acids are citric, maleic, itaconic, lactic, gluconic and tartaric acids, but many other suitable organic acids are mentioned. The process is preferably applied to producing a laminate of two sheets of regenerated cellulose film made by the viscose process. Immediately prior to drying the films they are passed separately but simultaneously through a bath containing a softening agent, such as a polyhydric alcohol or a polyether, and the anchorage resin. The bottom surface is coated with the acid solution and the films pressed into intimate contact and then dried over steamheated rollers. The outer surfaces of the laminate which are free of acid may be coated with a vinylidene copolymer in an aqueous dispersion and then dried. Specifications 654,342, 684,105 and 831,995 are referred to.
Patent GB-176846-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02M1/00
Filed: 1920-11-15
Abstract: 176,846. Ricardo, H. R. Nov. 15, 1920. Regulating.-In aircraft engines having high compression ratio, the working charges are diluted with inert gases at decreasing altitudes and at ground level to prevent an increase in the maximum working pressures developed at high altitudes. According to the construction shown in Fig. 2, exhaust gases are fed through a tube D<1> to a carburettor A, the supply of exhaust gas being controlled by a valve E actuated by hand or by a barometric device. The supply of exhaust gas is cut off at altitudes approximating 12,000ft. and is a maximum at ground level.
Patent GB-821564-A (GB)
Title: Improvements relating to apparatus for bi-fluid or multi-fluid spraying
IPC: A62C99/00
Filed: 1956-10-23
Abstract: 821,564. Fire-extinguishing; fire-engines. CARMICHAEL & SONS (WORCESTER) Ltd., and CARMICHAEL, H. Nov. 19, 1957 [Oct 23, 1956], No. 32209/56. Class 47 [Also in Groups II and XXIX] Apparatus for multi-fluid spraying incorporates a container for each fluid, a common pump adapted to draw and spray as a mixture fluid derived from the containers and a power source for driving the pump, the outlet from each container being controlled by a valve which opens automatically under suction to an extent dependent upon the output of the pump and the 'output of the power source being regulated automatically in dependence upon the demand on the pump. A container 10 has compartments 101, 102 for water and foaming liquid respectively which have outlets 103, 104 opening into a chamber 117 'connected to the inlet of a centrifugal pump 27. The outlets 103, 104 are controlled by spring loaded valves 12, 19 which open under the suction of the pump against the pressure of their springs 13, 21, the pressure of the spring 21 being controllable by means of a screw threaded sleeve 20 whereby the proportion of water to foaming liquid withdrawn from the chambers may be regulated. The pump 27 is driven from the engine of a motor vehicle on which the apparatus is mounted and this engine is controlled by a fluid operated speed governor which is connected with the delivery side of the pump. The outlet of the pump is associated with three or more delivery hoses each of which is provided with an individual control cock. The stem 123 of the valve 12 and the stem 193 of the valve 19 are connected by linkages 15, 17, 18 and 23, 25, 26 respectively, with control levers, Fig. 1 (not shown) which can be located in any one of three positions whereby the valves 12, 19 may be held closed against their seats, locked in their open positions, or permitted to open and close freely under the influence of the suction of the pump 27
Patent GB-1109301-A (GB)
Title: Improvements in or relating to function generators
Inventor: MORTLEY WILFRID SINDEN
IPC: G06G7/28
Filed: 1964-08-10
Abstract: 1,109,301. Electric analogue calculating. MARCONI CO. Ltd. 24 May, 1965 [10 Aug., 1964], No. 32392/64. Heading G4G. [Also in Division H3] In a circuit for deriving a stepped voltage function, a charged capacitor C is discharged in response to an input signal, a plurality of switching devices being made sequentially conductive or non-conductive as the capacitor discharges so as to generate the required function. As described, transistors TA, TS are turned on by each pulse at 1, charging capacitor C and turning on transistors AT1 . . . AT4 and BT1. Transistors TA, TS are turned off at the end of the pulse at 1, allowing capacitor C to discharge via resistors SRI ... SR4, AR1 ... AR4 and the base currents of transistors AT1 . . . AT4. The bases of the differential transistors LT1, LT2, and hence the output voltage at 3, assume a potential during this time dependent on the setting of the slider of PR1, which is connected to earth via transistors AT1, BT1. When capacitor C has discharged sufficiently to turn off AT1, BT1 will also be turned off, turning on BT2 so that the output voltage will now be determined by the slider of PR2. Transistors AT2 ... AT4 will thus be turned off successively as the discharge continues, reducing the rate of discharge and successively turning on transistors BT3, BT4 so as to provide further steps in the output waveform determined by potentiometers PR3, PR4. Resistors SR1 . . . SR4 may be replaced by Zener or forward-biased silicon diodes or SR1 may be replaced by a constant current transistor having a resistive emitter feedback circuit. Alternatively, capacitor C may be coupled via an emitter follower to resistors SR1 ... SR4 so that the discharge current is independent of the conductive states of transistors AT1 1 ... AT4.
Patent GB-408727-A (GB)
Title: Improvements in wireless receiving circuits
IPC: H03G5/06
Filed: 1932-11-16
Abstract: 408,727. Valve circuits for wireless reception. DOWDING, G. V., 215, Hainault Road, Leytonstone, and MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, both in London. Nov. 16, 1932, No. 32408. [Class 40 (v).] In a receiver in which the low-frequency amplifier compensates for the high-note loss introduced by the use of reaction, additional means are provided for introducing high-note loss when reaction is not being used to the maximum extent. As shown, the reaction coil 16 is in series with a pre-set condenser 17. Reaction is controlled by a variable condenser 18 (which is short-circuited in its maximum position), in series with an anode bye-pass condenser 19 of a size to produce the necessary loss. In a modification, reaction is controlled by a differential condenser, the halves of which may be unequal and the bye-passing half of which is short-circuited in the minimum reaction position. In further modifications, a reaction condenser is ganged to a variable condenser or to a variable resistance in series with a condenser shunting the transformer between the detector and the first low-frequency valve. The invention is not limited to the case in which reaction is capacity-controlled and the additional high-note loss may be introduced at any point preceding the tonecorrection stage.
Patent GB-788792-A (GB)
Title: Improvements in pumps for fluids
IPC: H02K5/128
Filed: 1954-11-09
Abstract: 788,792. Centrifugal pumps. AMAG-HILPERT-PEGNITZHUTTE AKT.-GES. Nov. 9, 1954 [Nov. 9, 1953], No. 32424/54. Class 110 (1). [Also in Group XXXV] In a motor-driven pump in which the pump and motor have a common shaft and a common casing, the motor being protected from the pumped medium by a cushion of gas or liquid within the motor space at the pressure of the pumped medium, a pressure-equalizing receptacle is connected to the casing at two points one above the other, in the region of the surface of separation between the two media, to stabilize the level of the surface. Corrosive liquid a Fig. 1, contained in a tank b at high pressure, flows through a pipe c to a centrifugal pump d which returns it to the tank through a pipe e. The electric driving motor f is protected from the corrosive liquid by a cushion of a fluid such as air, gas, steam or oil, subjected to at least the pressure of the inflowing liquid and sepa. rated from the liquid at a surface x. The pressure of the cushion fluid may be controlled by means of a U-tube, one limb of which opens at i into the common casing g while the other limb depends into the tank b with its mouth l level with the surface x. Cushion fluid can be admitted to the U-tube through a valve 2 from a container (not shown) under pressure. Valves 7, 10 can be closed to permit dismantling of the pump. Valve 7 is of the three-way type, to permit either of the pipes 8 and 9 to be the suction pipe, depending on the type of impeller used. An alternative way of stabilizing the level of the surface x is shown in Fig. 2, in which a pressure-equalizing tank m communicates through a pipe m<SP>1</SP> with the cushion fluid space and through a pipe m<SP>2</SP> with the inlet side of the pump. Undue rise of the liquid level bridges electrical contacts at n<SP>1</SP> to operate a warning device. The flow of heat from the pump to the motor is diminished by reducing the cross-section of the casing at a neck u, which may be externally ribbed. A further reduction in heat transmission may be effected by making the shaft v in two parts, with an insulating insertion y between them. The two parts may be welded together at the point of division. The motor stator is protected by a tube p of corrosion-proof material, such as stainless steel, which is thickened at its ends p<SP>1</SP> as a safeguard against fracture caused by thermal expansion. Insertions q of corrosion-proof material, which may be welded to the tube p, complete the sealing of the stator. The lower part s of the casing is of corrosion-proof material, while the upper part r may be of non-corrosion-proof material.
Patent GB-434097-A (GB)
Title: Improvements concerning automatic hammers for extractors and the like
IPC: E02D9/02
Filed: 1933-11-21
Abstract: 434,097. Withdrawing piles. PAJOT, A., 12, Rue du Champ de Bataille, Angers, Maine-et-Loire, France. Nov. 21, 1933, Nos. 32443 and 32444. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 23, 1934]. [Class 68 (ii)] A steam or pneumatically operated pile &c. extractor comprises a cast steel frame having sideplates 1 and cross heads 3, 4 and enclosing a cylinder 9 resi liently supported at its lower end on a spring 14 co-acting with a closure plug 12 and connected at its upper end to the cross head 3 by bolts 11 carrying spring wash ers. The cylinder con tains a striker 16 the lower end of which forms a piston 17 The extractor is se cured at its lower end to the pile and the striker is forced up wards to deliver a blow against the plate 18.
Patent GB-189998-A (GB)
Title: Improvements in and connected with motor ploughs
IPC: A01B63/06
Filed: 1921-12-03
Abstract: 189,998. Bernard, R., and Vosahlo, F. Dec. 3, 1921. Implements with adjustable tool frames; lifting parts.-In a motor plough having a front driving and steering wheel 2 and two other supporting-wheels 3, the share frame is raised and lcwered by mechanism driven from one of the two supporting-wheels 3. The share frame 10 is pivoted on a lifting-frame 9 and provided with an extension 10<1> engaging under an adjustable pin 29. The frame 9 is rigidly fixed on a shaft 8 carrying a toothed segment frame 13 engaging with a spur-wheel 15 on the axle 7 of the wheels 3. The spur-wheel 15 is connected by a clutch with a sleeve 18 keyed in the hub of the wheel 3. The clutch is operated by means of a lever 25, a rocking shaft 24, a fork 23, a ring 22, and a spring 20. The frames 9, 10 are held in the raised position by the engagement of a disc 16 with a cam 26 on the segment 13. The frames fall when the disc 16 is moved out of engagement by a movement of the clutch lever. In order that the frames may be raised by hand, the segment frame 13 has worm teeth 30 with which a worm 31 may be brought into engagement by rocking the worm shaft 32 about a pivot the shaft 32 being provided with a hand-wheel 33 and with a locking-pawl to hold it in position.
Patent GB-656308-A (GB)
Title: Improvements in electric brakes especially, for automobile vehicles
IPC: H02K49/04
Filed: 1948-12-15
Abstract: 656,308. Eddy-current brakes. ELECTROMECANIQUE DE L'AVEYRON. Dec. 15, 1948, No. 32481. Convention date, March 8. (Class 103 (i)] An eddy-current brake is constructed with one of its shaft bearings 3 fixed axially while the other bearing 4 may slide axially within the brake frame 1 so as to allow for heat expansion, the rotor 5 being slidably mounted on a sleeve 7 on the shaft and fixed axially with respect thereto by means of a member 8, the heat expansion of which tends to neutralize that of the shaft so that the air gaps e1, e2 are maintained constant.