baber/WOPTO huggingface dataset:
Patent GB-1025066-A (GB)
Title: Overload safety device for pull or push drives, particularly in stamping presses
IPC: D01D4/02
Filed: 1964-04-27
Abstract: 1,025,066. Shearing &c. presses. C. BEHRENS A.G. April 27, 1964 [May 11, 1963], No. 17367/64. Headings B3H and B3W. A relief mechanism for a punching, stamping &c. machine comprises spring means 9 in or associated with the drive mechanism of a moving part 10. In an embodiment, Fig. 1 (not shown), the springs 9 are on a telescopic connecting rod 5, 6 which, through a quadrant lever 19 and a link 22, drives a slide 10 from an eccentric 65. The springs 9 are compressed between collars 7, 8 by a nut 11. Upon overload, part 6 of the connecting rod slides in part 5, further compressing the springs and carrying an abutment 17 on a sleeve 16 surrounding the springs against a switch 18 which stops the machine. The locked mechanism may be released by turning an eccentric pin 18 normally held against rotation by a keeper, Fig. 2 (not shown). The force required for upward movements of the slide is transmitted between parts 5, 6 of the connecting rod through a shoulder 15 which bears on a split collar 14 on the part 5. In a modification, Fig. 3 (not shown), the connecting rod 47 drives the slide 10, through a toggle linkage 46. The relief mechanism permits movement of the fixed pivot 48 of the linkage upon overload and comprises a telescopic rod 31, 36 pre-loaded by springs 38 compressed by a nut 41. A link 35 on a pivot 49 connects the toggle linkage 46 to part 36 of the telescopic rod and turns about the pivot upon overload. This causes movement of part 36 of the telescopic rod in part 31, until an abutment 43 operates a switch 44. The link 35 may be dispensed with if the rod 31, 36 is coaxial with the slide 45 and connected direct to the pivot 48.
Patent GB-1341055-A (GB)
Title: Method and device for facilitating removal of moderator blocks
IPC: G21C19/02
Filed: 1971-05-27
Abstract: 1341055 Moderator structures BROWN BOVERI & CO Ltd 27 May 1971 [29 May 1970] 17399/71 Heading G6C The stacked moderator blocks of a nuclear reactor are provided with means for moving adjacent columns of the stacked blocks bodily away from a column to be removed, prior to the operation of the charging machine to remove the column, so as to separate the column to be removed from the adjacent columns. In the embodiment described, the moderator blocks 3 stand on core support tubes 6 which extend through the bottom shield 16 of the reactor pressure vessel. Each column of moderator blocks 3 is provided with a base-plate 11 which normally rests on a flange 17 connected to a core support tube 6. Pistons 12 are contained in the core support tubes 6, each being rotatable by means of mechanical gearing so that a peg 13 on the upper face of the piston can be turned to such a position that it will tilt the corresponding moderator column in the desired direction when the piston 12 is raised by means of a screw jack 14. Each piston 12 is coupled to a position indicator 15 which is connected via an hydraulic connection to the peripheral support system of the moderator. The peripheral support system is formed by a plurality of levers pivoted at their lower ends and adjustable horizontally at their upper ends by control mechanisms to allow for the tilting of the moderator columns. To provide accurate tilting and moderator removal, the drive rotating each piston 12 is also coupled to the peripheral support system so that the appropriate sector of the system responds to a given rotary position of the piston, i.e. of peg 13.
Patent GB-994858-A (GB)
Title: Pneumatic control device
IPC: F24F3/052
Filed: 1963-05-02
Abstract: 994,858. Fluid-pressure servomotor systems. ROBERTSHAW CONTROLS CO. May 2, 1963 [May 9,1962], No. 17423/63. Heading G3P. A cold air valve 16 operated by a pneumatic piston actuator 20 and a hot air valve 18 also operated by a similar actuator 22 feed air through a conduit 30 to a space to be heated and are controlled by apparatus 32 having a signal pressure line 128 from a thermally responsive means in the space and operative to increase the signal pressure in response to increase of temperature, and static pressure connections 82, 86 leading to opposite sides of a diaphragm 78 for exercising control of the flow rate to the space. An adjustment means 108,102 varies the spring-loading on the diaphragm to set the desired rate of flow which is controlled by a flapper 98 actuated by the diaphragm and determining the pressure in a chamber 62 which, through a diaphragm 42 and plate 50, controls pressure in a chamber 46 by means of a valve member 52 coacting with a fixed seat 53 communicating with a pressure supply chamber 38 and with a movable seat 56 communicating through a passage 60 with atmosphere. Increase of flow to the space to be heated causes the flapper to increase the pressure in chamber 62 which results in an increase of pressure in the chamber 46 and a consequent closing action of the valve 16 whose actuator is connected by a pipe 24 with the chamber 46. At the same time, signal pressure from the thermally responsive means is transmitted past a diaphragm 118, which is normally depressed, to a pipe 26 to actuate the valve 18. Should the valve 16 become fully closed and the flow rate still be above the desired valve pressure in the chamber 46, passing through a passage 126, will lift the diaphragm 118 and have access through openings 120 to the pipe 26. Control of the valve 18 is thus transferred from the thermally responsive means to the flow responsive means until the desired temperature is again reached in the space, when the signal pressure will again depress the diaphragm 118.
Patent GB-222933-A (GB)
Title: Improvements in or relating to gramophones or disc talking machines
IPC: G11B19/265
Filed: 1923-07-06
Abstract: 222,933. Janes, W. L. S. July 6, 1923. Speed, regulating.-Relates to sound-recording or reproducing machines in which a constant speed of the record-groove under the stylus may be obtained, or in which the turntable may .run at a constant angular velocity when required for the manufacture or use of ordinary records. According to the invention, there is provided on the tone-arm 1 a toothed segment 19 engaging a rack 17, which is connected by a lever 15 to a strip 11 having a tapered end 14. This end coacts with the brake-lever 9 of the centrifugal governor of the motor so as to increase the speed as the tone-arm moves across the turntable, the acceleration being such that the linear speed of the surface engaging the stylus remains constant, Means are provided for disengaging the rack 17 from the segment when a constant angular speed is required. In the construction shown in Figs. 1 and 2, the strip 11 is interposed between the end of the upper arm of the brake lever 9 and the regulating screw 10. A modification is described in which the, tapered strip co-operates with a screw fixed in the outer arm of the brake-lever, which lever is controlled by a spring. In this construction, in addition to the provision of means for disengaging the toothed rack from the segment on the tone-arm, transmission of movement of the tone-arm to the strip 11 may be interrupted by the withdrawal, by means of a lever 24, Fig. 6, of the pivot 22 of the lever 15. This lever is then freely supported in a bracket 23.
Patent GB-1473151-A (GB)
IPC: G10H5/04
Filed: 1974-04-22
Abstract: 1473151 Electrophonic warbler PLAYART Ltd 22 April 1974 17597/74 Heading G5J An audio frequency signal generating circuit for producing repeated tones comprises a pair of transistors, the transistor TR1 having a capacitor C4 between its emitter and earth which begins to charge when the switch 10 is closed, causing TR2 to conduct and C4 to begin to discharge, TR2 having reactive feedback causing it to oscillate, resulting in a "warbling" tone from speaker 8. The circuit is housed in a bird-shaped casing 16 (Fig. 2, not shown) having a supply switch 10 and push-button switches 14. This arrangement forms the subject of Specification 1,473,152.
Patent GB-1466076-A (GB)
Title: Treating refractory or ceramic bodies or coatings
IPC: C23C22/00
Filed: 1973-08-24
Abstract: 1466076 Refractory bodies and coatings KAMAN SCIENCES CORP 24 Aug 1973 [18 Sept 1972] 17605/76 Divided out of 1466074 Headings C1J and C1A Bodies or coatings having interconnected porosity and comprising a nitride, a carbide, a silicide, a boride, an intermetallic, a ferrite, a metal or a metal alloy are densified, hardened and strengthened by impregnating with a solution of a soluble chromium compound also containing a dissolved metal oxide other than chromium trioxide (CrO 3 ) or with a solution of a metal chromate and then drying and heating the impregnated body or coating to convert the chromium compound into chromium oxide (Cr 2 O 3 ). Many suitable materials from which the initial body or coating can be formed and many suitable impregnating solutions are listed. The examples relate to the treatment of bars of SiC, bodies pressed from Cr 3 C 2 , SiC, Si 3 N, TiN, or Fe 4 N and having a potassium silicate binder, bodies pressed from Ti, Ce, Al, Ni, or Mn+Fe metal powders, oxalate coatings on steel or titanium, anodized coatings on alumium, chromium plating on steel, and chromium oxide coatings on titanium; the impregnating solutions used are magnesium chromate, magnesium or zinc dichromate, magnesium or zinc chromate containing added chromium trioxide and a solution made by partially reducing chromic acid with carbon. In the examples the impregnation and curing cycle can be repeated up to twelve times.
Patent GB-727638-A (GB)
Title: An apparatus for extruding ceramic material, particularly for the manufacture of bricks and other ceramic articles
IPC: B28B3/20
Filed: 1953-06-25
Abstract: 727,638. Extruding bricks &c. STICHTING LABORATORIUM VLAMOVEN N.V. June 25, 1953 [June 26, 1952 ; Nov. 27, 1952], No. 17612/53. Class 87 (2) An apparatus for extruding ceramic material (e.g. for making bricks) while vibrating it longitudinally in the direction of extrusion, comprises a moulding- nozzle 2 connected to the extrusion chamber by a guide-tube 3 having an armature 4 on it which is attracted by an electromagnet 5, against the action of a resilient cushion 7 rigidly mounted at 8, this producing a rapid movement of the tube 3 so that the material in the tube lags behind with respect to the tube. On release, the tube returns slowly under the action of the resilient cushion carrying the material with it.
Patent GB-730392-A (GB)
Title: Improvements in and relating to road-vehicle refuse-collecting containers
IPC: B65F3/26
Filed: 1952-07-14
Abstract: 730,392. Tipping vehicles. FEIDERT, J. July 14, 1952 [July 19; 1951], No. 17690/52. Addition to 682,143. Class 108 (1). The road vehicle refuse container of the parent Specification may be tipped or tilted about either pair of its trunnions 3, 4, which are locked or unlocked in their bearings by a hand-operated mechanism which permits only one pair to be unlocked at a time. Trunnion lock pistons 7a, 8a are operated by pressure cylinders 7, 8, and valves 11, 12, to free either one or the other pair of trunnions, or both pairs together for replacement of the container.
Patent GB-216380-A (GB)
Title: Improvements in wardrobe or like fittings
IPC: A47B61/02
Filed: 1923-07-09
Abstract: 216,380. Timings, S. July 9. 1923. Garment racks.-A telescopic rack for wardrobes and the like comprises a hollow stationary member 4 made from a rectangular blank of sheet metal by cutting and bending and a U-shaped sliding rod 10 fitting therein, a sleeve 15 clipped to an arm of the U making a running connection with the outside of the member 4.
Patent GB-386879-A (GB)
Title: Improvements in or relating to optical instruments arranged to provide a diffusely illuminated testing or exposure area
IPC: G01J1/42
Filed: 1932-06-23
Abstract: 386,879. Photographic apparatus. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Eich, F. L., 627, North Plymouth Boulevard, Los Angeles, U.S.A.) June 23, 1932, No. 17792. Convention date, Jan. 5. [Classes 97 (i) and 98 (i).] A method of compensating for irregularities in the illumination provided by optical instruments comprising a source of illumination arranged to provide a diffusely illuminated testing or exposure area, consists in exposing an area of photosensitive material in the light path between the source of illumination and the testing or exposure area, removing and treating the photosensitive material to give. a photographic transparency of which the light transmission is substantially inversely proportional to the intensity of the light incident on the photosensitive material, and positioning the photographic transparency in the light path between the source of illumination and the testing or exposure area in effectively the same position as that previously occupied by the photosensitive material. As shown is Fig. 1, a cabinet 1 encloses a source or sources of light 2 partially surrounded by a reflector 3, the light being diffused by the screen 4 and falling on a glass sheet 5 in an opening in the top of the cabinet 1. On sheet 5, Fig. 3, is a sensitometer strip 6 having areas with different light transmission characteristics, partially masked by the opaque sheet 7 and covered by the transparent sheet 8, on which the section of photographic material to be tested, such as a piece of kinematographic film, is held by the pad 10. A piece of photosensitive material 11 is placed on the glass sheet 5 and gives the correct exposure. It is developed in a non-staining developer to a gamma of approximately unity, washed, fixed, and dried. The exposed material 11 is then replaced under the glass sheet 5. Alternatively the reflector 3 may be coated with photosensitive emulsion and treated in a similar manner. The method may be applied to photographic enlargers, sensitometers, densitometers, or photometric apparatus.
Patent GB-184014-A (GB)
Title: Improvements relating to artificial arms
IPC: A61F2/58
Filed: 1921-07-01
Abstract: 184,014. Thiele, A. July 1, 1921. No Patent granted (Sealing fee not paid). Limbs, artificial.-Comprises a construction of shoulder harness for artificial arms for amputations above the elbow-joint, to which are secured operating- cords for the hand and the elbow-joint or forearm, the operation thereof being derived from movements of the chest, back, &c. The upper arm socket a is attached at the front, by a buckle strap e, to the end of a sling f which passes substantially horizontally across the nape of the neck, around and under the armpit of the sound arm, and slantwise upwards, as at h, across the back, the free end being secured to the main horizontal portion of the sling. The hand-operating cord i is attached at s to the slanting back portion of the sling. A locking device for the hand, comprising coacting members q, r, may be provided. The forearm actuating- strap g is secured at one end to the horizontal portion of the sling d, and, after passing over a guide-pulley l, the other end is fastened to a drum k fast upon a pivot belt c fixed to the lower limb member b and rotating in bearings in the upper member a. A locking-pin n coacting with a notch o in the bolt c may be provided to lock the arm in the bent position. Fig. 1 shows the front of the person.
Patent GB-472932-A (GB)
Title: Improved sanitary bed
IPC: A61G10/00
Filed: 1936-06-27
Abstract: 472,932. Medical treatment chambers ; bedsteads. NAVARRO, L. A. June 27, 1936, No. 17930. Convention date, June 27, 1935. [Class 81 (ii)] [Also in Group XIV] A bed forming for the occupant an isolated atmosphere is closed by non-rigid shutters, of the kind made of strips of wood assembled together by fabric, extending between the end members of the bed and a central arch-like guide. Eight shutters 18B, four each side, slide in grooves in the guide 1 and end members 2, 3; they can be telescoped into grooves 19, formed in the under part of the bed. The end 3 supports a child's cradle formed of a base 32 hinged on a horizontal pivot and two sides 31 hinged on vertical pivots, the front being covered by a roll shutter 24 of the kind referred to above, a cover 23 for housing the cradle, and dirty-linen compartments 22. The cradle may be isolated from the bed by a shutter (not shown). The ends 2 and 3 are connected by a stay 27 and boards 16 which support spring mattress 14 and lateral benches 30 provided with cushions or mattresses. The bed ends have air-vents 4, 5 having double doors, and openings 25 having vanes, all of which openings are covered with wire gauze. The cradle sides 31 have air-vents 29 which, when the sides are not in use, register with the openings 25. The ends of the bed are provided with refrigerating chambers, tables, chests, a book-case, electric lamps, &c.
Patent GB-892729-A (GB)
Title: Improvements in overspeed controls for variable pitch blade hydraulic turbines
Inventor: NICHOLS BEVERLY ROBERT
IPC: F03B15/08
Filed: 1960-05-20
Abstract: 892,729. Hydraulic turbines. ALLIS-CHALMERS MANUFACTURING CO. May 20, 1960, No. 17972/60. Class 110 (3). [Also in Group XXIX] An hydraulic turbine having blades 8 adjustable by a fluid-pressure servomotor 12 under the control of a valve 56 which is actuated by a turbine-driven governor 38 so that the pitch of the blades is decreased as the speed increases and vice versa has an overspeed governor 90 operating a valve 96 which controls an intercept valve 66 in the conduits 52, 54 between the valve 56 and the servomotor whereby on overspeeding of the turbine, resulting in venting of a chamber 80 and consequent downward movement of the intercept valve member, the portions 52b, 54b of the conduits 52, 54 are interconnected with each other to equalize the pressures on the two sides of the servomotor piston so that the blades, which are so arranged that the water pressure constantly urges them towards their coarse pitch positions, take up these positions in which the runaway speed is lowest. Under overspeed conditions the control valve 56 will be in its lowest position so that servo fluid from an inlet 50 will be acting through the conduit 52 on differential areas 68, 70 of the intercept valve to assist a spring 86 in lowering the intercept valve member. At the same time the conduit 54 will be vented to an outlet 62 so that the interconnected conduit portions 52b, 54b are also vented through the conduit 54. The valve 96, which is continuously rotated to ensure freedom of operation, is adjustably loaded by a spring 150. A follow-up arrangement is stated to be provided between the blades and the control valve 56.
Patent GB-579652-A (GB)
Title: Arrangement for monitoring pulse width modulation
IPC: G01R29/06
Filed: 1942-12-18
Abstract: 579,652. Pulse modulation, monitoring..CARTER, C. J., and PYE, Ltd. Dec. 18, 1942, No. 18031. [Class 40 (v)] [Also in Group XXXVI] In a system of monitoring pulses modulated in width, phase, or height, the time-base voltage and 'the audio-modulating voltage are both derived by frequency division from the pulse generator. As shown, a sine-wave generator V8 operating at the pulse frequency feeds a modulating valve V9 which converts the sinewave into pulses varying in width in accordance. with the modulating voltage applied to the transformer T2. The pulses are amplified at V10 and fed at.X to one pair of plates of an oscillograph. The sine-wave 'from the generator V8 is also fed from the coupling T1 to squaring valves V1, V2 which feed a frequencydivider comprising a pair of reversed diodes V3, V4. Each positive pulse passes current through the diode V4 into a condenser C2 which builds up a charge by successive pulses until the gas valve V5 breaks down and discharges the condenser C2. Each negative pulse discharges the condenser C1, but does not affect the charge on C2. The number of pulses necessary to give an adequate charge to the condenser C2, i.e. the ratio of frequency division, is adjusted by the slider on the resistance R2. Pulses of the reduced frequency are used to trip a sawtooth generator V6, the voltage from which is amplified in the valve V7 and applied at Y to the other plates of the oscillograph. A small fraction of the saw-tooth voltage is applied to an audio amplifier A which tends to convert the wave to a sine form, its output being applied to the modulating transformer T2. In this way, the frequency of the modulating signal applied to the monitoring circuit is the same as that of the time base, and is an integral fraction of the pulse frequency, thus giving a stationary picture on the oscillograph.
Patent GB-378149-A (GB)
Title: Improvements in or relating to wireless receivers and the like
IPC: H04B1/10
Filed: 1931-06-22
Abstract: 378,149. Valve amplifying and detecting circuits ; impedance networks. CARPENTER, R. E. H., 35, Croham Valley Road, Croydon, and WIRELESS MUSIC, Ltd., 11, Garrick Street, London. June 22, 1931, No. 18093. [Classes 40 (iii) and 40 (v). ] In order to prevent interference in radio reception from signals on adjacent frequencies, a multi-section low-pass filter is interposed in the detector circuit, or in the input or output circuits of the first low-frequency amplifier, the filter being designed to cut off at an audiofrequency near to but above the highest frequency necessary for speech or music, say at 8500 cycles. As shown, the filter comprises series inductance coils 6, 8, 9 the coils 6, 9 being shunted directly by condensers 7, 10 and the opposite ends of the coil 8 being connected to earth through condensers 3, 4. The filter may be inserted in the anode circuit of the detector valve 1 and may terminate in a resistance 13 and condenser 11, forming the coupling to the next valve 5. The filter may alternatively be connected in the grid circuit of the detector valve. Any form of multisection filter giving the desired cut-off may be used. The coils 6, 8, 9 may be set up mutually at right-angles, or their axes may be set parallel to each other at 55‹ to the line joining their centres so as to minimize coupling. Induction by external magnetic fields is reduced by connecting the central inductance 8 in the opposite sense to the other coils 6, 9. The central coil 8 has low self-capacity.
Patent GB-942412-A (GB)
Title: Improved apparatus for use in testing and setting the direction of vehicle headlamps
Inventor: BOOTH MARCUS BAXTER
IPC: G01M11/06
Filed: 1961-05-18
Abstract: 942,412. Levels; measuring angles. BOOTH PATENTS Ltd. Aug. 15,1962 [May 18,1961], No.18100/61. Headings G1F and G1X. An instrument 1, Fig. 1, for testing or setting the direction of vehicle headlamps comprises a head 4 for engaging the studs 3 on the lens 2 of a sealed prefocused lamp unit and a level indicator 7 on an arm 9 extending forwardly from the head 4 so that when the indicator 7 is horizontal the axis 6 of the lamp unit is also horizontal. The indicator 7, as shown, is a spirit level which is mounted on a platform 11 and can be initially set by adjustment of screw 12. By sliding wedge 16, which leans against a forked end 14 of platform 11, the angular relation of axis 6 to the horizontal may be determined or adjusted to a desired value, the knob 17 of wedge 16 co-operating with a degree scale 20 to show the inclination. To measure inclination of the axis 6 in a horizontal plane, a frame 30, Fig. 6, is provided with a member 31 pressed against the vehicle front wheels 24, and a cross member 36 is angularly adjusted on frame 30, by placing a peg 44 in one of a series of holes 42 in a member 41 on frame 30 until the cross member 36 is observed to be parallel to a transverse bar 37 provided on the arm 9 of instrument 1. According to the Provisional Specification a board may be placed against the vehicle front wheels and arm 9 observed in relation to a series of angularly spaced lines on the board.