baber/WOPTO huggingface dataset:
Patent GB-836368-A (GB)
Title: Improvements in or relating to checking the precision of toothed wheels, worms wheels and other wheels and gears
IPC: G01B7/28
Filed: 1957-03-07
Abstract: 836,368. Checking accuracy of gears. VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI. March 7, 1957 [March 16, 1956; April 29,1956], No. 7679/57. Class 40 (1). The accuracy of gears is checked by coupling a magnetic gauge to move with each of the engaging gears, picking off an alternating voltage by movement of the gauges relative to a sensing head and comparing the two voltages so obtained. In Fig. 2, the gears 4 and 5 are mounted on spindles 1, 6 which also carry discs 2, 7 (see Specification 824,653) on which are recorded magnetic signals. As the discs rotate, the heads 11, 10 generate voltages whose frequencies are in the same ratio as the instantaneous gear ratio of the wheels 4, 5. The voltages are amplified and converted at 12, 13 into pulses of repetition rate proportional to the frequencies of the picked-up signals (e.g. four times as great). The pulses of higher rate are passed into the divider 14 and reduced to a rate which will be equal to that of the pulses from 12 if both gears are perfect. The frequency divider 16 then produces no output. Any irregularity in the gears causes the instantaneous pulse rate to change, giving an output on the indicator 17. Alternatively (Fig. 1, not shown), the irregularities are shown as phasedifferences of the two voltages. The method is also applicable to worm gearing, friction gearing, rack-and-pinion gearing or lead-screws and nuts.
Patent GB-653848-A (GB)
Title: Improvements in and relating to means for loading or stacking in heaps potatoes and other vegetables and other materials occurring in the form of coherent bodies
Inventor: HAMBLIN HENRY JOEL
IPC: B66C1/12
Filed: 1948-03-15
Abstract: 653,848. Automatic-release hooks. MINISTER OF AGRICULTURE & FISHERIES. March 15, 1948, No. 7743. [Class 89(ii)] [Also in Group XXX] A sling for use particularly in hoisting vegetables comprises a net 7, Fig. 1, carried at its ends by retractable hooks 6 on a beam 1 suspended by a shackle 8 from a crane. Non-retracting hooks 2 at the ends of the beam 1 support through chains 3 a bar 5 over which the net 7 passes so that when the hooks 6 are retracted to dump the load the empty net is supported by the bar 5. The beam 1 is hollow and houses means which automatically retract the hooks 6 when the sling is lowered to rest on the ground and raised again. This means includes a vertically sliding bar 15, Figs. 2 and 3, which when raised engages rollers 18 on extensions 19 of the hooks 6 to swing them about their pivots 20 and so retract them through the apertures 6a. The bar 15 carries a spring pressed catch 13 which, when the sling is lowered to rest on the ground, automatically engages a head 12 on a sliding rod 10 to which the shackle 8 is secured so that when the sling is raised the bar 15 is raised with the rod 10 to retract the hooks 6: the weight of the beam is then borne by an abutment 11 on the rod 10. When the sling is to be raised without retracting the hooks 6 a cord 17 accessible from outside the beam is pulled to disengage the catch 13 from the head 12: re-engagement of the catch 13 when the cord 17 is released is prevented by engagement of a spring-biassed latch 21 with the side of the head 12. The head 12 automatically depresses the latch 21 and engages the catch 13 whenever the sling is lowered.
Patent GB-145840-A (GB)
Title: Improvements in or relating to platen-release devices for typewriters
IPC: B41J19/64
Filed: 1919-03-27
Abstract: 145,840. Etheridge, H., Richardson, W. J., and Bar-Lock Typewriter Co. March 27, 1919. Addition to 20413/13. Platen-roller couplings.-The cone clutch for coupling the line-spacing wheel C to a member B on the platen-roller, as described in the parent Specification and which comprises one or more levers D, controlled by a finger-piece F, for pressing together the clutch-members, is now provided with one or more de-clutching levers which are operable by the finger-piece to separate the clutchmembers. As shown, the clutch spring is in the form of a plate or wire E which is arranged with the ends E<1> abutting on the spacing-wheel C and acts as a de-clutching-lever when the finger-piece is pressed. In a modification, an axial clutchspring is employed and de-clutching is effected by levers which engage a groove in the finger-piece.
Patent GB-429308-A (GB)
Title: Fountain pen
IPC: B43K5/17
Filed: 1934-03-12
Abstract: 429,308. Fountain pens. ERHARD, A., 27, Kronprinzenstrasse, and BOSSERT, C., 20, Lameystrasse, both in Pforzheim, Germany. March 12, 1934, No. 7812. [Class 146 (iii)] In a fountain pen of the type in which a slidable sleeve is provided with a hinged flap which opens or closes to pass or protect the nib as the pen is moved in the sleeve, the pen 1, Fig. 3, is detachably fixed by screw threads or the like to the innermost 3 of two telescoping sleeves, to the outermost 4 of which the flap 9 is hinged. The pen and sleeve 3 are guided by a strap 6 movable in a slot 8, Fig. 5, in the sleeve 4, and which engages a connecting rod 17 hinged to the lid 9 and provided with projections 18, 19. During an outward movement of the pen the strap first frictionally engages the portion 19, and thus opens the flap 9, and then passes over it ; during an inward movement, the strap again engages the portion 19, closes the flap 9, and finally comes to rest against the portion 18, thus holding the flap closed. The sleeve 4 is protected by a sleeve 13, which holds a pocket-clip 12 in place against a collar 10 on the sleeve 4, and is itself retained by a screwed sleeve 15. To maintain the pen in the closed position, projections 21 on resilient bridges, separated from the sleeve 4 by slots 22, are adapted to engage in depressions in the sleeve 3. By unscrewing the sleeves 15 and 3 the assembly may be taken to pieces for cleaning.
Patent GB-1220943-A (GB)
Title: Infrared radiation temperature sensing for use with sheet material
Inventor: MCMULLEN JAMES MICHAEL
IPC: G01J5/00
Filed: 1968-02-16
Abstract: 1,220,943. Photo-electric temperature measurement; electro-physical measurement - moisture. INDUSTRIAL NUCLEONICS CORP. Feb. 16, 1968 [March 8, 1967], No.7814/68. Headings G1A and G1N. In measuring the temperature of a travelling sheet of plastics material or paper with an infrared sensor, a reflector is placed on the side of the sheet opposite to the sensor so as to reflect back through the sheet infrared radiation emitted by that side to thereby compensate the sensor against changes in sheet thickness which effect the radiation emitted by the surface adjacent the sensor. The output of the sensor is used to compensate a di-electric gauge, such as for measuring moisture content of the sheet, against changes in sheet temperature. In Fig. 1 a sheet of tissue paper 10 travels under a head scanning back and forth across its width on rails 22. The head includes a #-thickness gauge 20, a di-electric gauge 28 and an infrared radiation sensor 30 having an aluminium sheet reflector 32 underneath on the opposite side of the sheet. The plate also shields the sensor against receiving background radiation through the sheet.
Patent GB-818390-A (GB)
Title: Processing of olefinic fraction to form dienes
IPC: C10G51/02
Filed: 1956-03-13
Abstract: Conjugated C4-C5 dienes such as butadiene, isoprene and piperylene are obtained by subjecting a hydrocarbon fraction boiling in the C5-C8 boiling range to vapour phase cracking at a temperature between 900 DEG  and 1500 DEG  F. in the presence of steam or other inert gas in such quantity as to maintain the hydrocarbon partial pressure in the cracked mixture between 2 and 25 pounds per square inch absolute. The C5-C8 fraction is preferably obtained by cracking a virgin oil fraction in the presence of a catalyst consisting of a silica-alumina, magnesia-alumina, silica magnesia, silica-alumina-magnesia, acid treated clays, alumina-boria or alumina-silica-zirconia.  In an example, a virgin gas oil was cracked at a temperature of 875-950 DEG  F. at a rate of 0.5 to 1.5 volumes of feed per volume of catalyst per hour and at a pressure of 0-20 p.s.i.g.  The amount of steam, hydrogen or nitrogen supplied is enough to make the hydrocarbon partial pressure at the coil outlet lie in the range of 5-15 p.s.i.a. and the temperature 1200-1500 DEG F.
Patent GB-998765-A (GB)
Title: A device for dispensing pills, tablets and the like
Inventor: MAJOR BERNARD FREDERICK
IPC: A61J7/04
Filed: 1962-02-28
Abstract: 998,765. Pill &c. dispensers. ORTHO PHARMACEUTICAL CORPORATION. Jan. 30, 1963 [Feb. 28, 1962], No 7891/62. Heading B8P. A dispenser for pills, tablets, &c. comprises an annular body 10 having cavities 16 and an index 17 arranged in a ring, a cover 11 rotatably interlocked with the body and having a dispensing aperture 18 for the pills 25 and an insert 14 in the cover having time symbols 15 corresponding to each cavity, that part of the cover overlying the cavities 16 being sufficiently transparent for the index 17 to be visible. The cover has a scalloped recess 21 into which fits the insert 14, a hole allowing access for an instrument to dislodge the insert when desired. The inner circumferential wall of the cover is divided into three equi-spaced legs 20, each having a detent to engage ratchet teeth 28 on the inner wall of the body 10, thus allowing relative rotation of the cover and body in one direction only, and a lip on the base to engage with chamfer 29 and lock the cover to the body. The symbols 15 denote the days of the week so that by fitting the insert 14 with the index 17 pointing to the day on which the first pill is taken, the index will subsequently record the day on which each successive pill is taken.
Patent GB-845653-A (GB)
Title: Improvements relating to electrodialytic cells
Inventor: TYE FRANK LAURENCE
IPC: B01D61/44
Filed: 1958-03-12
Abstract: 845,653. Electrodialysis. PERMUTIT CO. Ltd. March 6, 1959 [March 12, 1958], No. 7979/58. Class 41. An electrodialytic cell is divided into compartments by membranes 3... 7, alternate membranes being selectively permeable to anions and cations, connections being provided to lead each of two liquids through alternate compartments, each liquid flowing in parallel through each of a number of groups of compartments which are connected in series, a compartment being provided between adjacent groups.having boundary membranes 5, 5a of the same sign, the compartment being connected in parallel with the compartments of one of the two adjacent groups (i.e. on the R.H.S in Fig. 2) and receiving the same liquid stream as the'compartments of the other of these two groups (i.e. on the L.H.S.). The membranes 5, 5a may be both cationic or both anionic, and the liquid in the compartment may be the dilution or the concentration stream. The dilution liquid may be a non-electrolyte, e.g. glycerine, and' the compartments may be filled with ion-exchange materials. The invention mitigates the effects of diffusion between adjacent groups of compartments which are under different pressures.
Patent GB-877746-A (GB)
Title: A hay conditioning machine
IPC: A01D82/00
Filed: 1960-03-07
Abstract: 877,746. Hay conditioning machines. OPPEL, H. C. March 7, 1960, No. 7989/60. Class 59 A hay conditioning machine comprises a pair of rollers 42, 43 (Fig. 3), which have parallel protuberances 84 fixed thereto and are rotatable in opposite directions in bearings mounted in a frame floatingly supported by wheels 26, the bearings for the roller 43 each being fixedly mounted in a. hole 49 (Fig. 6), in an end plate 15, of the frame and the bearings for the roller 42 each being movably mounted in a hole 48 in the end plate 15, the movement of the roller 42 towards the roller 43 being limited by stop means 53, 54 to prevent contact between the rollers, and the frame carrying a roller 70 (Fig. 3), for contacting the ground at a definite distance below the lowest part of the roller 43. The bearings for the roller 42 are each mounted on a spring-influenced lever 52 (Fig. 6), pivotably mounted on end plate 15, downward movement of the lever 52 being limited by a stop bar 53 fixed to end plate 15 and contacted by an adjustable screw 54 threadedly engaged through lever 52. The bearings 25 (Fig. 1), for the wheels 26 are supported by struts 24 secured to the ends of a cross shaft 24. The wheels 26 may be raised or lowered by turning a crank 35 (Fig. 2), provided with a screwthreaded portion 37 threadedly engaging a nut 33 pivotedly mounted in a member 30 fixed to the shaft 22. A counterbalancing spring 38 extends between the member 30 and a member 27 fixed to the frame. The rollers 42, 43 are driven by means of a chain 61 engaging sprockets 57, 58 mounted on extensions of the rollers and engaging a further sprocket 59, the sprocket 59 being driven from the power take-off 69 of a tractor. The crimped crops are compacted by means of pivotally-mounted guides 79 (Fig. 1). The protuberances on the rollers 42, 43 may alternatively be in the form of cylindrical rods or of rectangular bars, the centre to centre distance between the bars being twice the link spacing in the chain 61 so that by adjustment of the chain. the rollers may exert a crimping or a crushing action.
Patent GB-192956-A (GB)
Title: Improved means applicable to metal water pipes and the like to prevent injury to the pipe by the contents thereof freezing
IPC: F16L53/00
Filed: 1922-03-18
Abstract: 192,956. Morgan, O. T. March 18, 1922. Metal pipes and tubes. - Air pockets are formed between a rubber lining and the wall of a metal water pipe, tank or the like, by ribs, indentations or corrugations either on the exterior of the lining or in the interior of the pipe &c., to prevent damage by the freezing and expansion of the contents. Circumferential ribs e, at the ends of a pipe length or at intermediate, intervals, with longitudinal ribs d extending between them, form the air pockets c. The lining may be affixed to the pipe &c. by adhesive applied to the contacting surfaces. In a long pipe length, only the more exposed sections of the pipe need be provided with the lining.
Patent GB-558081-A (GB)
Title: Filters, more especially for the air intake of aircraft engines
IPC: F02M35/16
Filed: 1942-06-11
Abstract: 558,081. Air filters. VOKES, C. G. June 11, 1942, No. 8005. [Class 8 (ii)] [Also in Groups XXVII and XXXIII] A filter 2 for aircraft, especially for the intakes of aircraft engines, is disposed in a duct, means being provided such as the door 30, so that the air may either be forced to pass into the duct through the filter or may have free access to the duct, e.g. under certain flying conditions, a small proportion of this air then being forced outwards through the filter, and cleaning it. In a modified form, the filter is hinged across the duct, and can be turned down to rest on and depress a spring-supported false bottom therein. The filters may be pleated screens. Specification 558,088 is referred to.
Patent GB-257299-A (GB)
Title: Improvements in the manufacture of sheet metal
IPC: B21B39/04
Filed: 1925-03-25
Abstract: 257,299. Steele, L. C. March 25, 1925. Rolling.-Sheets are rolled in a single roll-stand from heated bars, the work being maintained, throughout the process, clear of the mill floor. A single pair of furnaces 2, 3 is worked in alternation, the bars issuing from the furnace in use on to a roller table 6 which conveys the heated bars to rolls 7. The sheet passes to a catcher 8 comprising a stationary skid 9 for receiving the sheet and a continuously rotating pivoted carrier 10 which elevates the sheet, and, in co-operation with a carrier 11 delivers it over the upper roll to a roller table 12<a>, which in turn re-introduces the sheet to the front of the rolls. When the required reduction of thickness has been effected, the sheet is passed by way of rolls 13 to a lateral carrier 16 which elevates the sheet to a platform 17 where it is doubled or is matched with another sheet, ready for passage to the non-working furnace 3 by way of a table 18 and inclined roller table 19. The prooees is repeated, the metal being brought to double thickness each time it arrives at the station 17. A doubling machine may be located at the platform 17.
Patent GB-1518426-A (GB)
Title: Apparatus for collecting pieces of solid material of desired sizes from a bed beneath a body of liquid
IPC: E21C50/02
Filed: 1976-03-01
Abstract: 1518426 Underwater mining apparatus INCO EUROPE Ltd 1 March 1976 [4 March 1975] 08073/76 Heading E1F Apparatus for collecting together pieces of solid material, e.g. mineral aggregates, from a bed beneath a body of liquid, e.g. the sea bed, whilst the apparatus is moved across the bed includes means to reject undesirably large pieces of material from entering the apparatus whilst allowing of smaller pieces of solid material to enter the apparatus and pass into a tumbler drum where separation occurs of the undesirably small from the desired size pieces of the material before both grades of material pass in separate streams through a suitably adapted exit end of. the drum, which is caused to rotate about an axis, which passes through the ends of the drums and is parallel to the bed, by the contact between the drum and the bed as the apparatus is moved over the bed. Preferably the apparatus comprises a skid-mounted support and roll bar framework 11 having at the leading end a rider 12 and a bumper 13. Bed-engaging teeth 22 and scarifier tines 30 are mounted on the bumper and the front structure of the framework to be dependent therefrom at spacings that prevent passage of large pieces of material below the bumper. Collecting apparatus for the smaller pieces of material passing between the teeth 22 and tines 30 comprises one or more pairs of wings 23 converging rearwardly with respect to the direction of advance of the apparatus to direct this material to the drum. Each wing comprises horizontal, vertically spaced bars 62 secured to brace members 25 dependent from the framework 11. Material is delivered from the collecting apparatus by a centrally disposed chute 28 of longitudinally extending, spaced bars into the drum. The axis of rotation of the drum preferably makes an angle of from 40 to 50 with the direction of advance of the apparatus. Radially outwardly directed blades 19 provided on the outer surface of the drum engage the bed and rotate the drum as the apparatus is advanced. These blades make, when in contact with the bed an angle of from 20 to 25 with the projection of the axis of rotation on the bed and an angle of at least 60, preferably about 67.5 with said direction of advance of the apparatus. Means are provided within the drum to tumble material in the drum. The desired and undesired sizes of material on being separated by being tumbled within the drum are carried by liquid passing through the drum respectively through an opening in the bottom of a mesh screen and through the mesh of the screen which closes off the exit end of the drum. The desired size material pieces may be delivered by a chute 32 either into an intake opening 34 of a suction pipe 35 for removal therethrough to the surface of the liquid or onto the bed for subsequent collecting by means that will raise the material to the said surface.
Patent GB-549584-A (GB)
Title: Improvements in and relating to the moulding of dough
IPC: A21C7/02
Filed: 1941-06-27
Abstract: 549,584. - Moulding dough. HARBER, L. S., and BAKER PERKINS, Ltd. June 27, 1941, No. 8114. [Class 87 (ii)] In making long loaves, a substantially cylindrical dough piece, i.e. having end surfaces substantially at right-angles to the axis of the piece, as distinct from the pointed or rounded ends usually produced, is obtained by forming the dough piece into a double lobe shape x (Fig. 2), flattening the piece, and coiling it. A dough piece is passed between a roller 5 and a plate 6 having a hump 6a which forms lobes y, and the formed piece is sheeted between rollers 5, 7, 8 and coiled up by means of a group of parallel chains 10 secured at one end to. a bar 11 and free at the other end. The double lobe forming, sheeting and coiling means may be mounted on or over a conveyer band, the lobe forming means comprising a blade increasing in width in the direction of travel of the band.
Patent GB-1261079-A (GB)
Title: Improvements in or relating to atmosphere-testing devices
IPC: G01N31/22
Filed: 1969-02-14
Abstract: 1,261,079. Gas analysis. AUERGESELLSCHAFT G.m.b.H. Feb.14, 1969 [Feb.16, 1968], No.8261/69. Heading G1B. A device for testing the atmosphere in sewers, comprises a tube containing an indicator layer e.g. silica-gel, iodine pentoxide and oleum, for the detection of benzene vapour and carbon monoxide and a preliminary layer through which air to be tested is first passed e.g. silica-gel, chromium trioxide and oleum, the length of the preliminary layer being such that with the same quantity of test air toxic concentrations of both benzene vapour and carbon monoxide produce similar lengths of colour change in the indicator layer. A mark may be provided on the tube to indicate this colour change length and a further mark indicating the danger of ignition may also be provided. The purpose of the preliminary layer is to remove a porportion of the benzene vapour before it reaches the indicator so that equal indications with regard to toxicity and combustion are given both by benzene vapour and carbon monoxide. Benzole and methane with hydrogen which usually are present in sewers in fairly well defined proportions with regard to the concentrations of benzene vapour and carbon monoxide can also be indicated using the device of the invention by assuming that these are present whenever benzene vapour or carbon monoxide occur.
Patent GB-313902-A (GB)
Title: Improvements in or relating to gas ovens
IPC: F24C3/08
Filed: 1928-03-19
Abstract: 313,902. Forshaw, A., Main, Ltd., R. & A., and Wortley, G. W. March 19, 1928. Gas cooking-stoves; ovens; baffles.-To prevent smothering of the burners in a gas oven, a baffle plate is arranged above them, having an upwardlydirected opening 9 above the burner and a surface 10 extending downwardly from the opening to direct the burnt gases away from the flames. The baffles, in the constructions described, are formed in frame-like base members supporting the oven walls: in the form shown in the Figs. the base member 3 wholly supports the oven and outer walls of the stove. It comprises a rectangular frame with flanges 4 for supporting the stove on a stand, upstanding ribs 5 forming a channel for receiving the side and rear walls, a large central opening 8, an operture or slot 9 at each side above the burners, which direct the flames upwards through the slots, and the downwardlyinclined guiding surfaces 10. The rear member of the frame is formed as an arch 13 to provide an outlet 12 beneath it leading to a flue in the rear wall. Supplementary flue outlets 15 are formed in the rear flange 4 of the base member. In a modification, only the inner oven walls are supported on the base member, the outer walls extending below it to take the place of the flange 4, and the baffles 10 are of stepped formation. The arch 13 is not provided, the flue outlet being formed by a recess in the rear edge of the base member. In a further modification, the baffles are formed as part of cylindrical members of which the upper portion, which contains the slot, is separate from the base frame, to which it is secured. In this construction the base frame is three-sided, the. front member being omitted.