baber/WOPTO huggingface dataset:
Patent GB-1536799-A (GB)
Title: Musical instrument truss rod assembly
IPC: G10D3/06
Filed: 1977-10-04
Abstract: 1536799 Stringed instrument C L FENDER 4 Oct 1977 [20 Oct 1976] 41114/77 Heading G5J The neck of a stringed instrument, e.g. a guitar, has a truss rod 21 tensioned by nuts 24, 25, so as to be curved to counteract warping of the neck, the truss rod being flattened 28 in a plane perpendicular to the plane of curvature over the major part of its length. The truss rod extends between an anchoring nut 24 at the body end of the neck and a tensioning nut 25 and washer 26 at the head end. When in place the rod is curved when viewed in longitudinal section and is flattened 28 in a plane perpendicular to the plane of curvature. The flattening makes the rod, which is initially of circular section and flattened in a press, more flexible and allows the thinnest part of the filling strip 35 to be thicker than is otherwise the case. Adjustment of tensioning nut 25 varies the tension in the truss rod to compensate for warping of the neck.
Patent GB-1327100-A (GB)
Title: Drive unit particularly for drum-type automatic washing machines
IPC: H02K7/10
Filed: 1970-08-27
Abstract: 1327100 Friction clutch HANNING ELECTRO-WERKE ROBERT HANNING 27 Aug 1970 [4 Sept 1969] 41383/70 Heading F2C The drive for a washing machine having spindrying facilities is effected by a two-speed reversible motor 1 which drives a V-belt pulley 11 either at high speed via drive shaft 5 and a radially acting centrifugal clutch 12 for spindrying or at low speed via a planetary reduction gear 2 and hollow carrier shaft 8 connected to the pulley by a radially acting friction clutch 10 for washing. The centrifugal clutch 12 includes spring-loaded pivoted friction arms 13, and clutch 10 includes an elastic band 14 formed with an internal tri-lobed cam surface against which engage three rollers 16 mounted on driving flanges 19 fast with the hollow shaft 8. Relative rotation between flanges 17 and the band 14 to engage the clutch is effected by a lever 19 friction mounted at 18 on the shaft 8 and abutting a pin 23 on the band. A spring pawl 20 and a stop cam 21 on the flange 17 lock the clutch 10 in its dis-engaged position during spin drying.
Patent GB-1523735-A (GB)
Title: Arrangement for calibrating gas analyser measuring circuits
IPC: G01D18/00
Filed: 1975-10-09
Abstract: 1523735 Calibration of voltage measuring arrangement HARTMANN & BRAUN AG 9 Oct 1975 [13 Nov 1974] 41454/75 Heading G1U A measuring arrangement is compensated for drift by repetitive calibration involving feeding sequentially two input values corresponding to extremes of the measurement range, and adjusting until the corresponding outputs reach the desired values, the arrangement being such that the two adjustments are independent of each other. In the gas analyzer shown, to calibrate, the programmer P closes switch S1 and controls valves M1, M2 to allow a control gas N into the analyzer G whose output should then represent the zero point of the measurement response. With switch S1 closed, the output voltage U A  is compared K1 to the pre-set desired voltage U OS  and voltage U O  is adjusted until they are equal. In this state, R2 has zero volts across it and therefore the zero-setting is independent of the value of R2. Programmer P now opens S1, closes S2 and controls Ml, M2 to allow a reference gas E to enter the analyzer, which provides an output representing the 'full scale' value. The output voltage U A  is now compared to a desired value U ES  and R2 adjusted accordingly. A similar arrangement Fig. 2 (not shown) is described where the measuring arrangement includes three differential amplifiers instead of one.
Patent GB-1406836-A (GB)
Title: Rotary shear
IPC: B23D35/00
Filed: 1972-09-07
Abstract: 1406836 Mounting circular blades MASCHINEN - UND BOHRGERATEFABRIK ALFRED WIRTH & CO KG 7 Sept 1972 [13 Sept 1971] 41658/72 Heading B3W A pair of co-operating circular blades 5, 6 are axially located on their spindles 1, 2 by stops A1, A2 respectively, the stop being on the opposite side of the cutting plane from the blade with which it is associated so that locating reground blades or blades of different thickness against the stops automatically maintains the original cutting clearance. The blade 5, flanked by stripping and support rings 7, is held against a fixed stop A1 on the spindle 1 by a bayonet catch device 12, 13. A cylinder 12 is urged towards the stop A1 by springs 16, acting between a piston 14 fixed to the spindle 1 and a shoulder 12a on the cylinder, and can be moved away from the stop by the introduction of pressurized oil through inlet 17 to chamber 18. A pin 15 prevents rotation of the cylinder relative to the spindle 1. With the cylinder moved away from the stop, an internally splined nut 13 is slid on to splines 19 on the cylinder and rotated half a spline width on a non-splined portion of the cylinder. The oil is exhausted from chamber 18 and the springs 16 cause the catch device 12, 13 to clamp the blade assembly against the stop A1. The stop A2 is adjustably mounted on the spindle 2 to allow variation of the cutting clearance. A sleeve 21 is fixed to the spindle 2 and the stop A2 is formed by a nut 23 threaded on the sleeve. A cylinder 25 supporting the blade 6 with its associated rings 8 is urged by springs 26 towards the stop A2 and is moved away from the stop by the supply of pressurized oil to a chamber 30 to allow a splined locking nut 24 to be slid on or off the nut 23 and adjustment of the nut 23 on the sleeve 21. To clamp the blade assembly against the stop A2 the nut 24 is slid beyond the splined portion of the nut 23 and rotated half a spline width on the sleeve 21. The size of the cutting clearance can be read from a scale 34.
Patent GB-1122635-A (GB)
Title: Improvements in or relating to door latch operating handle asemblies
Inventor: STARLING MICHAEL JULIAN
IPC: E05B3/06
Filed: 1965-10-05
Abstract: 1,122,635. Securing handles on spindles. MARLEY TILE CO. Ltd. 5 Oct., 1966 [5 Oct., 1965], No. 42229/65. Heading F2U. A handle assembly, adjustable for different door thicknesses, comprises a moulded plastics handle 1 journalled on a sleeve 13 of a moulded plastics rose 2 and having an outer end square bore engaging a square latch spindle 27, the handle being infinitely axially adjustably secured thereon, within a limited range, by a self-locking screw 9 engageable in a tapped bore 28 in the spindle end. The locking screw and washer are recessed at 11 in the handle aud covered by a plastics cap 12 fitted flush in the recess. The inner end of the handle hub 3 has an annular recess 21 by which the handle is snap-engaged with arcuate beads 20 formed at the radially inner ends of ribs 19 on the outer face of the rose 2, which rose is secured to the door face by wood screws (17) (Fig. 2, not shown) and covered by a plastics cover-plate 24 snapped over its outer edge. The cover-plate has a screwdriver aperture 25 for inserting the wood screws, after which the aperture is positioned over a stud 26 of the rose 2, the stud being flush with the cover-plate face. A return coil spring 5 is arranged over the rose sleeve 13 within the handle hub 3, stop faces (22), (23) (Fig. 3, not shown) between the sleeve and hub limiting the action of the return spring to the latch engaged condition.
Patent GB-1089064-A (GB)
Title: Improvements in or relating to lift control systems
Inventor: STATHAM BRIAN GEORGE
IPC: B66B1/52
Filed: 1965-10-06
Abstract: 1,089,064. Lift control systems. EXPRESS LIFT CO. Ltd. Aug. 25, 1966 [Oct. 6, 1965], No. 42406/65. Heading B8L. A lift selector comprises a stepping motor 1 whose rotor 2 corresponds to car position and carries means for actuating on/off switching elements. As shown, these comprise main magnetic reed switches 5 (one for each floor) for position signals and auxiliary ones 6 to initiate slowing. The switching elements are connected directly in transistor or the like control circuits 8 and in indicator lamp circuits 9. Stepping signals 7 are generated by proximity or other sensing devices on car and shaft, or by an auxiliary device moved in synchronism with the car. Reed switches may be actuated by a magnet 4, or a stationary magnet with movable polepiece or magnetic screen; alternatively the switching elements may be photo-electric or capacitive devices.
Patent GB-889899-A (GB)
Title: Microwave impedance-discriminating devices
Inventor: ROBINSON STEPHEN JOSEPH
IPC: G01R27/02
Filed: 1960-12-09
Abstract: 889,899. Impedance measurement. MULLARD Ltd. Dec. 9, 1960, No. 42565/60. Class 37. A micro-wave impedance discriminator for comparing an impedance to be tested with a known impedance element comprises means to apply identical signals to both impedances, junctions dividing signals reflected from both into two equal parts, first and second comparison devices for comparing each half of each reflected signal comprising hybrid junction and square law detectors, and means provided between second junction and second comparison device whereby the output signals have amplitudes proportional to the reflection coefficients and the amplitude and phase difference is a function of the difference between the angles of the reflection coefficients. A circuit of such a discriminator is shown in Fig. 1 in which an input terminal 8 is connected via a two-way power-splitter 180-degree hybrid junction F to a similar junction G having opposite arms terminated in a non-reflecting impedance and to a junction E having one terminal connected to a non-reflecting impedance and the other to an impedance TP to be tested. The remaining terminals of E and G are connected to junctions D and C, respectively, the output terminals of which are connected to both of two junctions A and B, each being connected to square law rectifiers R. The voltages so produced are applied to the X and Y plates of a cathode-ray oscillograph, as shown in Fig. 2, to produce a display in the form of a spot displaced from the centre point by a distance r and at an angle #. Specification 818,018 is referred to.
Patent GB-1159161-A (GB)
Title: Improved Door Handle Assembly
Inventor: WANSBROUGH BRIAN
IPC: E05B3/06
Filed: 1966-09-23
Abstract: 1,159,161. Furniture &c. handles. B. WANSBROUGH and R. M. TURNBULL. 23 Sept., 1966, No. 42593/66. Heading A4U. [Also in Division E2] In a door handle assembly, which is mounted without visible screws, the escutcheon plate consists of a base plate 4, secured to the door by screws 19, and a cover plate 5 having an externally threaded hollow boss which is in threaded engagement with an internally threaded aperture in the base plate. The boss forms a bearing for a stub shaft having a squared end 9 operatively engaged in a lock 18, and an end 10 embedded in epoxy resin in a cavity 15 as a knob 6. Bearing washers 2, 3, coverplate 5, and knob 6 are secured to the shaft by the setting of the resin, and this assembly is mounted on the door, on which the base plate is already screwed, by insertion of the shaft through co-incident apertures in the base plate and in the door and rotating the cover plate in threaded engagement in the aperture in the base plate. The base plate has projections 8 for preliminary marking of the door at the positions where apertures should be drilled for the screws 19.
Patent GB-1018800-A (GB)
Title: Method of carrying out gas chromatography
Inventor: ROTZSCHE HAROLD
IPC: B01J20/281
Filed: 1962-11-12
Abstract: Cyanoalkyl polysiloxanes of the general formula <FORM:1018800/C3/1> where the ratio x:y is variable; x being greater than or equal to 1; y being greater than or equal to 0; and z being greater than or equal to 1; R is a methyl or phenyl radical and R1 is one of a number of specified radicals of formula -(CnH2n)-, where n is 2-4, can be prepared by co-hydrolysis of compounds of the general formulae (1) R2SiCl2; (2) NC-R1-SiCl2R; (3) R3SiCl or by the hydrolysis of compounds of the general formula (2) above, alone or together with compounds of the general formula (1) followed by polymerization and equilibration with compounds of the general formula R3SiOSiR3 In a typical example, gamma cyanopropyl methyl dichlorosilane was co-hydrolysed with dimethyl dichlorosilane and trimethyl chlorosilane in the presence of ether and water, the resultant oil freed from water, hydrogen chloride and ether, and oligomers removed by distillation.ALSO:Gas chromatographic separation is carried out using as stationary phase one or more cyanoalkyl polysiloxanes of general formula:  <FORM:1018800/B1-B2/1> wherein the ratio x:y is variable; x being greater than or equal to 1; y being greater than or equal to 0; z being greater than or equal to 1; R is a methyl or phenyl radical and R1 is one of a number of specified radicals of formula -(CnH2n)- where n is 2-4.  A cyanoalkyl polysiloxane may be used in admixture with other polysiloxanes. Varying the ratio x:y:z in the general formula produces compounds having differing separation efficiencies. Examples refer inter alia to the use of compounds on carriers such as sterchamol, "Celite" (Registered Trade Mark) and kieselguhr; and to separation of alkylbenzenes from N-paraffins and of a mixture of alkyl and chloro substituted silanes.  Comparative details are provided for nitrobenzene and diethylphthalate silicone oil as stationary phase.
Patent GB-1409116-A (GB)
Title: Photoelectric reading device for a data medium
IPC: G06K7/10
Filed: 1972-09-14
Abstract: 1409116 Photo-electric reader COMPAGNIE HONEYWELL BULL 14 Sept 1972 [30 Sept 1971] 42771/72 Heading G4M A photo-electric reader for a perforated medium has two surfaces between which the medium passes and has a light source in one medium and a light detector in the other. Both the source and detector have two light emitting or collecting regions. Light from a source 18 is carried by light guide 21 which is forked at one end to form two light sources. A detector 19 receives light from a similar guide 20. In a normal read position of a perforation as shown light from both sources is collected at both detector guides. The two source or detector guides are so arranged that the maximum displacement of a hole due to stretching, mispunching or incorrect feed covers only one source or detector guide so that more light is passed through the hole than passes through the body of the card and a read level is above a noise level.  Two separate guides may feed a detector or source or the guides may have a cover containing two openings.
Patent GB-1116724-A (GB)
Title: Mounting for tile or the like
Inventor: KNAPP EUGENE JEROME
IPC: E04F13/08
Filed: 1965-10-08
Abstract: 1,116,724. Facing units. CORNING GLASS WORKS. 8 Oct., 1965, No. 42808/65. Heading E1B. A facing tile or panel made of a material (e.g. foam plastics or plywood) subject to shrinkage is adhered to a supporting surface (e.g. a ceiling) through flexible plugs 18 which bend to allow said shrinkage, the plugs being integral with or adhered to the rear face of the tile. The ceiling tile shown is of foam plastics, has integral cylindrical plugs 18 coated with contact adhesive, and has two opposite edges 16, 17 raised or rebated to overlap the plain edges of adjacent tiles. During manufacture the foam plastics plugs may be compressed by a roller to render them more resilient.
Patent GB-1061023-A (GB)
Title: Improvements in and relating to electrical windings
Inventor: AUTH WALTER
IPC: H01F27/34
Filed: 1963-10-30
Abstract: 1,061,023. Transformers &c. LICENTIA PATENT.- VERWALTUNGS - G.m.b.H. Oct. 30, 1963, No. 42857/63. Heading HIT. A winding arrangement for power transformers or chokes comprises an intermediate tapped winding portion connected to winding portions whose remote ends are at a high voltage and a low voltage respectively, the winding portions being arranged in layers, and the low voltage winding portion forming a whole untapped layer. In one embodiment, the tapped winding portion 5 is connected in such a way to two untapped end portions 1, 3 that the flux developed in the intermediate portion 5 can be arranged either to aid or to oppose that developed in the untapped end portion 1. In another embodiment (Fig. 3, not shown), an intermediate portion (5) is permanently connected at one end to an untapped end portion (3) and any one of the tappings of the intermediate portion (5) is connected selectively to one of number of tappings on another end portion (1). An additional winding (12) (Fig. 4, not shown) may be provided for surge screening purposes and the low voltage end winding portion may be connected to earth or to a star point.
Patent GB-1248394-A (GB)
Title: Improvements in automatic poultry feeders
Inventor: PERRY NORMAN JOHN
IPC: A01K39/01
Filed: 1967-09-21
Abstract: 1,248,394. Automatic poultry feeders. PERRY BROS. (CONCORD) Ltd. 18 Dec., 1968 [21 Sept., 1967], No. 42985/67. Heading AIM. [Also in Division B8] In an automatic poultry feeder, feed carried from a hopper to an upper trough 6 by an endless chain 3 falls into a lower trough 4 through holes 20 in the upper trough bottom and holes 21 in a reciprocating plate 10 when these two sets of holes are aligned, a timing mechanism to run at preset intervals being provided to switch on respective mechanisms for driving the endless chain and the reciprocating plate, and two interleaved comb-shaped members 22, 24 being provided in the lower trough to spread the feed uniformly on each side of the trough. The timer-mechanism consists of a synchronous motor 48 (Fig. 4B, not shown) which, through a reduction gear (49) and a mechanism (43, 42, 41) drives at a preset speed a plate 40 having a plurality of circular tracks 61 (Fig. 4A, not shown) comprising uniformly disposed holes (62). The plate also has a light source on one side and a radially adjustable photo-electric cell on the other so that with a plate-hole coming in a line with the light source and the cell, activates to switch on respective motors of the chain-driving and the platereciprocating mechanisms which mechanisms are provided with means which are preset independently to stop the mechanisms after an interval of time. The mechanism will operate again after the next plate-hole comes in line with the light-source and the cell. The height of both the troughs together is adjustable.
Patent GB-1006285-A (GB)
Title: Feedback-controlled single-sideband generator
IPC: H03C1/60
Filed: 1961-12-01
Abstract: 1,006,285. Single sideband modulator. SPERRY RAND CORPORATION. Dec. 1, 1961 [Jan. 10, 1961], No. 43044/61. Heading H3R. A circuit for producing a single side band output signal which may be demodulated at a receiver by means of a square law detector comprises a summing circuit 2, an amplifier 6, a signal processing network 8, a conventional single side-band modulator 13 and a feedback path from the modulator output to the summing circuit which includes a square law detector 3 and low pass filter 4. Summing circuit 2 produces an output signal equal to the difference between a unipolar modulating signal applied to its input terminal and a unipolar feed-back signal representing the square of the envelope of the modulator output signal and this signal is amplified and applied to the modulator input via network 8 which prevents the signal attaining a negative polarity. The loop gain is such that the square of the envelope of the modulated output signal is constrained to follow the input modulating signal to a close degree.
Patent GB-1028941-A (GB)
Title: Improvements in or relating to tedders
IPC: A01D78/00
Filed: 1962-11-15
Abstract: 1,028,941. Hay-tedders. C. VAN DER LELY N.V. Nov. 15, 1962 [Nov. 30, 1961], No. 43333/62. Heading A1F. In a hay-tedder of the kind having a horizontal rotary tined drum transverse to the line of travel, the drum includes tine supports 127 parallel to its rotationaxis, the crop-working portion 128 of each tine being connected to one of the tinesupports through a loop or helix 129, 134, an elongated member being passed through a series of such helices or loops to retain them in the event of tine-breakage. In Fig. 3, the supports comprise tubes 127 extending between end-plates 126, the retaining means being a steel cable passing axially through all the tine-helices 129 and being anchored to the end-plates. The inner ends 130 of the tines are bolted to the tubes 126. In Fig. 5, there is a single loop 134 on each tine 133 in addition to the helix 136 and a spring steel rod 138 passes through all the tine-loops being retained therein by eyes at its ends. The tines are mounted on the machine described in Specification 1,028,942.
Patent GB-1094171-A (GB)
Title: Gramophone
Inventor: ROBINSON PAUL BARON HENN
IPC: G11B3/085
Filed: 1963-11-02
Abstract: 1,094,171. Guiding pick-ups. DISCATRON Ltd. Jan. 27, 1965 [Nov. 2, 1963], No. 43347/63. Heading G5R. The claims relate to the radial pick-up guiding means described in Specification 1,094,173.
Patent GB-1392299-A (GB)
Title: Clutches
IPC: F16D21/06
Filed: 1971-09-18
Abstract: 1392299 Friction clutches GKN TRANSMISSIONS Ltd 25 Aug 1972 [18 Sept 1971] 43598/71 Heading F2C In a double friction clutch for the main and power-take-off drives of a tractor wherein two driven discs 16, 18 are normally clamped between a flywheel 13 and first and second presser plates 15, 17 by springs 22 and are sequentially released by radial release levers 26, the first and second presser plates 15, 17 are connected for conjoint rotation by rods 34 positioned radially outwardly of the second driven disc 18 and springs 37 reduce the clamping pressure on the disc 16. The rods 34 are axially fast with the first presser plate 15 and pass through bores in the second presser plate 17 to permit relative axial movement between the presser plates. The release levers 26 are pivoted at 27 to the second presser plate 17 and initial movement of the levers pivots the latter about pins 30 which react on the rods 34 to maintain the first driven plate 16 clamped between the flywheel 13 and first presser plate 15 whilst the second driven disc 18 is disengaged. On further movement of the levers 26, pivot bolts 35 engage reaction studs 25a on a clutch cover 25 and thereafter the levers 26 pivot about the bolts 35 to relieve the pressure on the rods 34 whereupon the springs 37 disengage the first driven disc 16. The pivot bolts 35 are adjustable to allow for wear. Reference has been directed by the Comptroller to Specification 1,215,717.
Patent GB-1244352-A (GB)
Title: Improvements in and relating to nails
Inventor: ROSEN SIDNEY
IPC: F16B15/00
Filed: 1968-09-17
Abstract: 1,244,352. Nails. S. ROSEN. 17 Sept., 1968, No. 44015/68. Heading F2H. A nail which may be of steel comprises a member of I cross-section having a flat web 1 and flanges 2, the web 1 being provided with a V-shaped recess 4 which defines points 6 at one end of the web 1. The flanges 2 may have curved outer faces and the V-shaped recess 4 may be defined by knife-edges 7.
Patent GB-1062493-A (GB)
Title: Improvements in or relating to implements for spreading powdered or granular materials
IPC: A01C17/00
Filed: 1963-10-17
Abstract: The subject matter of this Specification is included in that of Specification 1,062,492 but the claims differ.
Patent GB-919687-A (GB)
Title: Improvements in or relating to fixing brackets for curtain-supporting means
Inventor: ADAMS WILLIAM JOHN
IPC: A47H1/144
Filed: 1961-12-11
Abstract: 919,687. Suspending curtains. INSULARBO Ltd. Dec. 11, 1961, No. 44206/61. Class 52 (5). A fixing bracket for curtain suspending means, including a horizontal board 1 with channels 2, has an upper limb 9 and a lower limb 10 providing a channel to receive the board 1, the lower limb 10 having a sharp projection 11 which becomes embedded in the board and retains it in position. Alternatively a square or other projection engages a slot in the board which is tilted for insertion into the bracket.