baber/WOPTO huggingface dataset:
Patent GB-212104-A (GB)
Title: Improvements in or relating to filters for milk
IPC: A01J11/06
Filed: 1923-03-03
Abstract: 212,104. Brown, J. W. March 3, 1923. Funnel filters.-In a filter for milk, of the type comprising a chamber c having an internal flange e on which rest sieves g, k, supporting pads of cotton-wool or other suitable material, a slightly tapered partition ! l is placed upon the flange and forms an annular settling-compartment n with the wall of the filter. The partition is flanged at the upper end, which is covered by a gauze sieve l<2>. A cover m having a downwardly projecting wall m<1> divides the compartment n into two parts. The milk enters the outer part of the compartment n through a cut-away portion o of the cover and passes into the inner part through gauze p on the opposite side of the wall m<1>. The whole may be secured in the bottom of a. refrigerator pan q by means of a spring wire r.
Patent GB-215884-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1923-03-05
Abstract: 215,884. Singer Manufacturing Co., Ltd., Corrall, H., and Stevens, B. A. March 5, 1923. Sewing-machines; feed by presser-foot; worksupports; work-guides; needles-guides.-A sewing- machine which is specially adapted for sewing purses comprises a throat plate, part of which is inclined at an oblique angle to the direction of the needle, and a feed member carried by an arm pivotally mounted and inclined at the same angle as the throat plate. An eye-pointed needle 10 cooperates with a shuttle oscillated by a pitman 13 connected by linkage to the main shaft. The needle enters a slot in the inclined part 23<1> of a throat-plate a horizontal part 23 of which is secured to the work-arm. A feeding-foot 24 is mounted above the plate 23<1> on an arm 27 pivoted at 29 to a bracket 31 rotatable about a vertical stud 32. A guide 33 located above the feed-foot is carried by an arm 35 also pivoted at 29 and pressed towards the arm 27 by a spring 39. Feeding movements are given to the arm 27 by mechanism comprising a face cam 42 on the main shaft acting through levers to rock a shaft 48 and arm 49 which is connected by a link 50 to a lever 51. A block 52 on the lever 51 has detachable engagement with a ball 53 on a rod 54 clamped by a screw in a socket 56 on the feed-lever. The lever 51 is pivoted at 63 to a cross-head 62 carried by a spring-depressed bar 59. A rod depending from the cross-head engages a cam 64 on the main shaft, which thus communicates lifting movements to the lever 51. The bar 59 carries a bracket 68 which is engaged by a hand-operated cam 71 to raise the lever 51 and the feed-foot. A stationary needle guard 72 is secured to the horizontal portion 23 of the throat-plate and forms in conjunction with the bevelled end 74 of the feeding foot a grinding means for the work. An edge-guide 77 sliding between the guard 72 and the throat-plate is provided with a lateral arm 78 to which is pivoted an arm 79. The guide 77 is retractible from operative position to allow the tab of a purse to pass under the guard 72 by pinching together the arm 78 and a spring-influenced catch-lever 81 having a notched arm 83 which engages a pin 84 on the arm 79. An extension 85 of the throat-plate is held by a spring against the forward edge of the part 23<1>, but may be swung aside. In operation the feeding foot is raised and shifted for a fresh feeding operation while the needle is in the work.
Patent GB-1509112-A (GB)
Title: Railway rolling-stock bogie-trucks
IPC: B61F5/16
Filed: 1976-02-19
Abstract: 1509112 Undercarriages SOC DES ACIERIES DE PARIS ET D'OUTREAU 19 Feb 1976 [25 Feb 1975] 06496/76 Heading B7L A moulded steel railway bogie comprises a pair of parallel side members 2 each having near its ends cavities for axle boxes, and a cross beam 1 carrying a centre bearing support 5, the beam 1 being formed of a central section la and end sections 1b integral or welded to the side members 2, wherein the bearing support 5 is butt-welded at 8 to the top of the section 1a and each end of the latter is butt-welded at 3 to an end of a corresponding section 1b.
Patent GB-957989-A (GB)
Title: Improvements in or relating to injection moulding apparatus
IPC: B29C45/76
Filed: 1962-02-20
Abstract: 957,989. Injection moulding machines. H. LUDWIG, [trading as DEUTSCHE SPECIALMASCHINENEN CO. H. LUDWIG KOMM.- GES.]. Feb. 20, 1962 [April 26, 1961], No. 6499/62. Heading B5A. An injection moulding apparatus has an extended mould part 19 attached to a resiliently mounted displaceable plate 14 which actuates a switch 26 to terminate injection when a predetermined internal pressure is reached and also to maintain this pressure after injection is completed. The plate 14 is mounted on a ram 12 by means of springs 15 and screw bolts 16. The compression of the springs 15 may be adjusted by means of screws 17. On injection, the pressure in the mould rises, and as the mould part 19 and the plate 14 are displaced downwardly they operate the switch 26 which contacts means 25 for moving a slider 24 to stop injection. The injection worm or piston (not shown) is stopped simultaneously. As the material cools and shrinks the mould part 14 is pushed up by the springs to maintain the same pressure on the material.
Patent GB-693137-A (GB)
Title: Party line identification dial
IPC: H04Q5/02
Filed: 1951-03-19
Abstract: 693,137. Automatic exchange systems; impulse dials. AUTOMATIC ELECTRIC LABORATORIES, Inc. March 19, 1951 [May 16, 1950], No. 6523/51. Class 40 (iv). In a dial for use on party lines which is provided with means for sending in addition to the ordinary break impulses a number of ground impulses to identify the calling party, the latter impulses are generated at springs 24, 24a, 25 under the joint control of an auxiliary cam 41 on the finger-wheel shaft and the cam 49 which operates the usual impulse-springs 19, 20. The spring 24, which is connected to line, has pivoted thereon a detent 38 having one end in the path of projections 45 on the cam 41 and the other end pressed against the spring, so that during the return movement of the finger-wheel each projection moves the spring 24 into engagement with the spring 24a, whereas the detent 38 merely turns idly during the setting movement. An extended portion 25b of the spring 25, which is connected to ground, bears against the impulse cam 49 to allow engagement of the springs 25, 24a while the impulse springs 19, 20 are closed, thus ensuring that ground impulses are evenly spaced before the first break impulse and between subsequent break impulses. For a 4-party-line, the cams 41 at the various instruments are provided with 0, 1, 2 and 3 projections respectively, or similar cams may be adjusted on the shaft to make effective the appropriate number of projections. Exchange circuits. When a call is made, the party line is extended over a line switch 320 to a repeater-selector 400, 405. Relay R450 repeats the first dialled digit to set the selector, while differential relay R420 responds to ground impulses, if any, and controls switch 350 to choose the appropriate meter M305 ... M308 for actuation upon reply. R410 pulls up after the first digit and nullifies any subsequent ground impulses. When a party line is called, the first dialled digit 2 ... 5 indicates the wanted party on the line and the selector 405 seizes a connector 401 ... 404 which supplies ringing current of appropriate frequency. The initial digit 1 is reserved for special service calls, e.g. to a toll operator 110. With the construction described above, not more than 2 ground impulses can be sent when this digit is dialled, but this is immaterial as such calls are not metered in the ordinary way. Specification 234,036, [Class 40 (iv)], is referred to.
Patent GB-539167-A (GB)
Title: Improvements in or relating to the manufacture of hollow articles
IPC: B21C37/29
Filed: 1940-04-12
Abstract: 539,167. Making pipe tees &c. WATSON, F. (W.S.A., Inc.). April 12, 1940, No. 6651. [Classes 83 (ii) and 83 (iv)] Stamping.-Hollow articles such as pipe tees, crosses, elbows and Y-s are made in copper, aluminium, mild steel &c. by forming a closed ended tube from a blanked out disc and converting into the required form by internal fluid pressure as described in Specification 463,651. The cupped blank is formed with a thickened end 14, Fig. 2, and a short parallel section of the same thickness tapering uniformly at 16a to a thinner parallel portion 16b. The blank is placed in a closely fitting twopart die 18, is substantially filled with liquid 44, and is acted on by a punch shaped according to the taper of blank. Excess liquid passes by a central bore 40 to a side duct 42 both formed in the pilot section 32 of the punch. Considerable fluid pressure is built up by the time the shoulder 36 contacts the end of the blank and the combined end pressure and internal pressure start expansion in the lateral branches 22, 24. The expansion is completed by the use of further punches with shorter pilots to complete the stamping as in Fig. 9. The finished fitting is of substantially uniform thickness except for a slight thickening at and depending on the magnitude of the radiusing 28. The squared ends are removed as by sawing and the ends may be expanded to enable soldered push-in joints to be made. The ends need not be completely squared before removal.
Patent GB-374114-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N5/04
Filed: 1931-03-04
Abstract: 374,114. Television. BAIRD, J. L. and BAIRD TELEVISION, Ltd., 133, Long Acre, London. March 4, 1931, Nos. 6712 and 13646. [Class 40 (iii).] In a multi-wa,y television system using mechanical scanning, the incoming signals are received during a quiescent period of the local station and the vector sum of the principal component of the incoming signals and the principal component of the outgoing signal is substantially zero at synchronism. The signals from one station have the form a, Fig. 5, and from the other station the form b. At synchronism these currents are equivalent to half waves of two equal frequencies c of opposite phase and hence there is no resultant current of this frequency. On departure from synchronism, a resultant current d is produced, which energizes a magnetic field co-operating with a toothed iron rotor, Fig. 1 (not shown), or, after rectification, feeds an extra winding on the field of the driving-motor, or an eddy-current brake. The scanning disc, Fig. 2, contains two sets 30, 32 of apertures with the apertures in each set spaced at a distance equal to twice the width of the area 34, 36 scanned, and each aperture lies on a radius which bisects the angle formed by the radii on which the two neighbouring apertures of the other set lie. A fluctuating neon lamp is placed behind the mask 34 and a steady arc light behind the mask 36, and the opening of the mask 34 may be extended to reveal a monitoring image of the operator. The local transmitter is prevented from affecting the local receiver by a commutator running in co-operation with the local scanning apparatus. Specifications 266,564, 269,658, 288,882, 309,965, [all in Class 40 (iii), Telegraphs, Electric], 321,930, [Class 39 (i), Electric lamps, Arc &c.], 336,655, [Class 40 (iii), Telegraphs, Electric], and 365,241 are referred to.
Patent GB-690304-A (GB)
Title: Drill holder for grinding devices
IPC: B24B3/24
Filed: 1951-03-21
Abstract: 690,304. Grinding drills. WEDEVAGS BRUKS AKTIEBOLAG. March 21, 1951 [May 23, 1950], No. 6731/51. Class 60. Apparatus for sharpening the cutting edges of drill bits provided with a cutting edge at the tip comprises an arm 3 pivoted at 2 to a base 1.; rollers or balls 19 are interposed between the base 1 and the underside of arm 3, and further balls 19a are interposed between the upper side of arm 3 and a plate 24 secured to the base 1 by bolts 25 passing through a curved slot 26 in the arm 3. The drill 8 is carried by a chuck comprising inner and outer sleeves 6, 22 fixedly connected for joint movement; the chuck is rotatable and axially movable in spaced bearings 4; 5 on the arm 3. The chuck is upwardly slanted in the direction of the grindstone 21, and can be rotated by a handle 7. A sleeve 8a, secured on the chuck in desired angular relation thereto by a screw 9, has cam faces 10, 11. Cam 10 coacts with a roller 12 carried by a bracket 13 on the base 1, contact being ensured by a spring 18 fastened to the base 1 at 23 and abutting against the arm 3. Cam 11 coacts with a roller 14 carried by a bracket 15 on arm 3 contact being ensured by a spring 16. When the handle 7 is rotated, the drill rotates and is moved axially by the cam 11 while the arm 3 is simultaneously rocked by the cam 10.
Patent GB-1136981-A (GB)
Title: Improvements relating to cross-flow fans
Inventor: VOGLER DIETER
IPC: F04D17/04
Filed: 1965-02-16
Abstract: 1,136,981. Transverse-flow fans. FIRTH CLEVELAND Ltd. Feb.15, 1966 [Feb. 16, 1965], No.6731/65. Heading F1C. In a transverse-flow fan for a hair dryer, a guide 23' extends generally lengthwise of the rotor 2 with its cross-section approximately aligned with or parallel to a tangent T to the rotor from a sharp or rounded nose 13. This has the effect, for a given restriction R, of so controlling the vortex core CR as to increase the effective throughput cross-section at A-A and avoid excessive divergence of diffuser portion D. The guide may be slightly inclined to the rotor axis (as seen in a projection on to an axial plane) or portions of the guide may be inclined (by 10 to 15 degrees) in alternate directions to reduce noise. The crosssection of the guide may be slightly bent, have rounded ends or be of elongated elliptical form. The guide my be moulded from plastics. A pocket 15 may converge in the direction of rotor rotation less than the amount shown or not at all. The guide may lie on the pocket side or the outlet duct side of the tangent T, preferably by a distance not exceeding a rotor blade chord. The surface 11 of wall 10 subtends an angle of less than 30 degrees at the rotor axis.
Patent GB-487973-A (GB)
Title: Improvements in and relating to machines for grinding or sharpening knives and the like
IPC: B24B3/54
Filed: 1937-03-08
Abstract: 487,973. Sharpening knives &c. STANLEY, A. J. March 8, 1937, No. 6787. Addition to 475,216. [Class 60] In a knife-sharpening &c. machine as described in the parent Specification, the adjusting means comprising the right- and left-handed screwed spindle and the associated nuts are enclosed in a casing to prevent access of abrasive dust to those parts. The machine comprises a table 1 on the top 1b of which are pivotally mounted, in lugs 2, the tubular bodies carrying the grinding-wheels x, driven by the electric motor 10. Across the table is cast a lug 11, which is bored axially and screwed at its ends to receive plugs 12 forming bearings for the spindle 14 having thereon right- and lefthanded threads 15, 16. Slidable in the bore of the lug are two nuts 19 engaging the threads and each provided with a pin 20 projecting through a slot 21 in the lug to engage each with a slot 22 in an arm 23, each arm being secured to one of the lugs 4 of the tubular members. The spindle 14 is rotated, to adjust the grinding-wheels x, by a knob 24, and the nuts 19 are of such length as always to close the slots 21. A felt washer 25 is provided on the end of the spindle 14, and axial movement of the spindle is prevented by a screw 18a, which engages a groove 18 in a collar 17 on the spindle.
Patent GB-838786-A (GB)
Title: Improvements in or relating to signal translating apparatus
Inventor: BIRD RAYMOND
IPC: G06F3/08
Filed: 1956-03-05
Abstract: 838,786. Electric digital-data-storage apparatus; sensing record cards. INTERNATIONAL COMPUTERS & TABULATORS Ltd. March 1, 1957 [March 5, 1956], No. 6818/56. Class 106 (1). Parallel-to-serial signal translating apparatus comprises cyclically operable switching means for testing, during each cycle, all input channels in succession for the presence of a pulse, a shifting register for storing a different character representation during each cycle, and means for reading out the stored representation each time the switching means detects a pulse to form a serial pulse train. As described, record card sensing means 47 controls a group of triggers 48 which are reset by cam contacts 49 at the end of each index point. During the sensing of each row of the card a counter 12, operated by clock pulses from a source 13 which is synchronized with, and may be a track on, a drum 58, is taken through a cycle during which output signals on lines 16 are applied to a diode decoding matrix 15 whereby output lines 17 are energized in sequence. Thus a series of gates 50 connected between the triggers 48 and the lines 17 pass a series of signals to a gate 51 equivalent to the holes reading across one row of the card. In order to express this information in binary-decimal form a four-bit shifting register 54 is arranged to register the value of the card row which is being sensed at any time. To provide for this the value " 9 " is entered into the register by the operation of cam contacts 43, 44 at the beginning of a card-sensing cycle and, as each index point passes, a signal derived from cam contacts 6, 8 conditions a subtractor 55 in the feedback circuit of the shifting register 54 to reduce the digit registered by unity. At the appropriate time, with each opening of the gate 53, a serial binary pulse train representing the decimal digit in the register 54 is fed to a recording head 75 whereby a serial representation of the data on the card will be recorded on the drum 58 at the end of the sensing cycle. A device 56 provides for inhibiting the gate 53 so as to limit the recording of data on the drum 58 under control of the counter 12. Specifications 738,269 and 838,787 are referred to.
Patent GB-693654-A (GB)
Title: Improvements in or relating to aerial systems
IPC: H01Q13/06
Filed: 1951-03-21
Abstract: 693,654. Aerials. GENERAL ELECTRIC CO., Ltd., and CRONIN, D. E. March 14, 1952 [March 21, 1951], No. 6822/51. Class 40 (vii). An aerial comprises a wave-guide orifice which is flush with a conducting metal surface 9 and is surrounded by a gap 7 in the conducting surface of such a depth, for example a quarterwavelength, that a high impedance is presented between the orifice and the conducting surface. By this means coupling between the orifice and surface is reduced, thus preventing distortion of the directivity pattern of the aerial system by currents flowing in the metal conducting surface. The waveguide is preferably of circular section and radiates circularly-polarized radiation. The wave-guide orifice may be closed by a member forming a window across the waveguide and both the guide and the gap 7 may be filled with a solid dielectric material, e.g. polythene.
Patent GB-535554-A (GB)
Title: Improvements relating to rotary blowers and pumps
IPC: F04C18/08
Filed: 1940-04-18
Abstract: 535,554. Rotary engines. GENERAL MOTORS CORPORATION. April 18, 1940, No. 6999. Convention date, April 22, 1939. Drawings to Specification. [Class 110 (ii)] The lobes and end walls of the rotors of a Roots' blower are provided with surfaces of readily abraidable material which are rubbed down to secure minimum clearances by a preliminary running-in process. Alternating, the casing may be provided with such surfaces. The abraidable material may be sawdust, ground cork, corn meal, cotton, rayon, ground synthetic resins or hard rubber with a varnish or suitable binder.
Patent GB-739465-A (GB)
Title: Improvements in or relating to umbrellas
IPC: A45B25/16
Filed: 1954-03-10
Abstract: 739,465. Telescopic umbrellas. ROSENKAIMER GES. March 10, 1954 [March 13, 1953], No. 7017/54. Class 134. In a telescopic umbrella of the type having auxiliary struts 6 pivoted to a main 'slide 4 and main struts 8 pivoted to an auxiliary slide 5 which moves along the main slide 4 under pressure from a spring 9 to automatically open the umbrella, the crown 7 of the auxiliary slide 5 is surrounded by a guide member 10 provided with rests to guide the main struts 8 during opening and closing of the umbrella and thus prevent twisting of the auxiliary slide 5 relative to the main slide 4 owing to the action of the spring 9. The struts 8 are provided with flattened ends which are closely embraced by the slots in the guide member, the height of which should preferably exceed that of the crown 7. The spring 9 bears against the base 10a of the guide member. A similar guide member may be provided surrounding the umbrella crown 2 to which the ribs 3 are pivoted and/or surrounding the crown 4a of the main slide 4.
Patent GB-1274823-A (GB)
Title: An electric buzzer
IPC: G10K1/067
Filed: 1970-02-13
Abstract: 1,274,823. Electric buzzer. UNITED-CARR Inc. 13 Feb., 1970 [17 Feb., 1969], No. 7071/70. Heading G5J. An electric buzzer comprises an armature, movable under the control of a magnetizable core, and a leaf spring, which has a free end for making sliding engagement with the armature and is made of a material which can be manually bent into different positions to determine its engagement with the armature so as to adjust the flexing movement of the latter when the core is energized. The spring leaf may be made of a spring brass or a spring bronze strip. This arrangement enables the buzzer to be tuned manually.
Patent GB-945446-A (GB)
Title: Improved piston and connecting rod assembly
IPC: F16J1/16
Filed: 1962-02-23
Abstract: 945,446. Connecting-rods. FORD MOTOR CO. Ltd. Feb. 23, 1962 [Feb. 27, 1961], No. 7100/62. Heading F2T. [Also in Division F1] A connecting-rod 19, secured by a gudgeonpin 27, to an I.C. engine or compressor piston 11 and slidable on the bearing journal 17 of a crankshaft 16, is rotatable to a limited extent about the gudgeon pin axis but is restrained from significant movement along that axis in at least one direction by engagement with the piston. The connecting-rod 19 may form part of an I.C. engine having opposed horizontal cylinders and has a forked big end 21 in which nests the plain big end 29 of a connecting-rod 28 secured by a pin 34 to an opposed piston. The connecting-rods are rotatably supported on a common two-part bearing 36, 37 rotatably mounted on the crank-shaft 16 and are centred on the crank-shaft by machined faces on both sides of the small end 23 of the rod 19 engaging with a running fit corresponding faces on the gudgeon pin bosses 26 in the piston 11. Alternatively, each of the opposite machined faces 44, 46 on the connecting-rods 19, 28, respectively engages a gudgeon pin boss face in its respective piston.