baber/WOPTO huggingface dataset:
Patent GB-1165142-A (GB)
Title: Door Latches for Automobile Doors
Inventor: GREENLAND RALPH
IPC: E05B65/20
Filed: 1966-07-07
Abstract: 1,165,142. Latches. GENERAL MOTORS Ltd. 15 June, 1967 [7 July, 1966], No. 30471/66. Heading E2A. A car door latch having a rotatable toothed bolt comprises a detent lever 5 which prevents unlatching movement of the bolt, first and second actuator levers 7, 14 which, through a link 9, can rock the detent lever to free the bolt and a child safety selector lever 60'which projects from the shut face of the door and renders effective or ineffective a connection between an interior door handle and the second actuator lever 14. As shown, the selector lever 60 has a slot 62 by which it moves the end 16 of a rod connected to the interior door handle along one arm 64 of an L-shaped slot in the second actuator lever 14 from the position shown in which it'is effective to rock the lever 14 to the dotted-line position in which it moves idly along an arm 65 of the slot. The first actuator lever 7 is actuated by an outside push button and the link 9 to which it is coupled has a' tail which can be moved by a trip lever 18, actuated by a cylinder lock or. by a sill push button, so that a shoulder 12 on the link which normally engages the detent lever 5 will move idly past it. If the door is slammed with the trip lever 18 in locking position, rocking of the detent lever 5, by its cooperating ratchet wheel on the bolt shaft, rocks a lever 28 which through its ear 29a restores the link 9 and trip lever 18 to unlocking position. However, if the outside push button is held depressed at this time, a shoulder 30 on the link 9 will be below the path of the ear 29a and so the mechanism will remain locked.
Patent GB-889266-A (GB)
Title: Stable esters of vitamin-a and the manufacture thereof
Filed: 1960-09-05
Abstract: The invention comprises substituted benzoic acid esters of Vitamin A in which the substitution consists of one or more halogen atoms or alkyl or alkoxy groups each containing up to four carbon atoms or of a nitro group in the o- or m-position or of two nitro groups. Specified compounds are: Vitamin-A o-nitro benzoate, Vitamin-A m-nitro benzoate, Vitamin-A 3,5-dinitro-benzoate, Vitamin-A p-chloro-benzoate, Vitamin-A 3,4,5-trimethoxy-benzoate, and Vitamin-A p-methoxy-benzoate. These esters may be made by the esterification of vitamin-A or a derivative with a benzoic acid which is appropriately substituted with halogeno atoms or -alkyl, -alkoxy or nitro groups, or by transesterifying an appropriate carboxylic acid ester of Vitamin A such as the acetate with an ester formed from an appropriate aliphatic alcohol and a halogeno, -alkyl,-alkoxy, or nitrobenzoic acid, using a transesterification catalyst such as an alkali metal hydroxide or alkalimetal alcoholate.
Patent GB-574673-A (GB)
Title: Improved means for feeding ammunition to belt fed machine guns
IPC: F41A9/29
Filed: 1938-10-22
Abstract: 574,673. Belt-fed machine guns. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. Oct. 22, 1938, No. 30569. [Class 92 (ii)] A machine gun 2, Fig. 1, in a rotary turret 1 is fed with rounds 14 by a belt 5 uncoiled from a remote drum 4, the belt passing along a light metal or plastic guide channel 7, Fig. 2, leading to a guide exit 9 below the axis of rotation of the turret and being free to twist between this exit and the entrance guide 10 on the turret. Further, the belt is fed along the guide by sprockets 16, Fig. 4, power driven independently of the gun mechanism, but operative only when the gun is firing. Fig. 3 shows a brake 21 for the drum 4 normally applied by a spring 24, but released by a solenoid 25 energized when the gun is fired. Guide rollers 31, 32, Fig. 7, are provided at bends 6, 8 in the belt. Specifications 486,684 and 495,187 are referred to.
Patent GB-672816-A (GB)
Title: Improvement in short wave electromagnetic radiation catoptrics
IPC: G21K7/00
Filed: 1949-11-29
Abstract: 672,816. X-ray apparatus; optical systems. RECHERCHES ET INDUSTRIE. Nov. 29, 1949 [Nov. 29, 1948], No. 30593/49. Classes 98 (i) and 97 (i). An X-ray or γ-ray imaging system comprises a source of rays, at least one concave reflecting surface disposed in the path of the rays at grazing incidence thereto, and an X-ray or γ-ray photographic plate or film, or fluorescent screen, disposed in the path of the reflected rays. It is shown that if X-rays or γ-rays from a point source fall on a concave spherical or cylindrical mirror with a large radius of curvature so that the rays make a small angle with the surface, e.g. less than 0.01 radian, the reflected rays will form a line image; and that if the rays are reflected at grazing incidence from two such mirrors, with the normals to their surfaces at the point of incidence of the principal ray perpendicular, the reflected rays form a point image. Hence it follows that an image of a small object can be formed and made visible by means of a fluorescent screen or a photographic plate or film. The image so formed is anamorphobic, but can be corrected by successive reflection from three mirrors, two of which are placed perpendicular to, and' symmetrically with respect to, the third. By choice of the object distance and of the curvature of the mirrors a magnified image is obtained. Alternatively, one mirror may be used to produce a beam of parallel rays, which are brought to a focus by a second mirror. Mirrors of elliptical or parabolic section may be used. In an example, Fig. 12, X-rays from a tube 43 fall on a plate 44 with a small hole acting as a point source illuminating an object in a holder 27. Rays from the object are reflected successively at grazing incidence from mutually perpendicular concave mirrors 36, 37 and form a magnified image on a photographic film 42. The parts are adjustable on rails 21, 22, and the mirror 36 is adjustable with respect to mirror 37. A tube 47, filled with helium, reduces the length of the path of the rays through air.
Patent GB-1410056-A (GB)
Title: Systems for constructing small fresnel holograms
IPC: G03H1/32
Filed: 1972-09-13
Abstract: 1410056 Holograms THOMSON - CSF 13 Sept 1972 30594/72 Heading G2J A Fresnel hologram is made by converting a parallel object beam into a plurality of non- converging beams that intersect one another at a location, smaller in area than the transparency coding the information, the latter being positioned in the path of the non-converging beams. Diffraction gratings or a lens array are used to generate the plurality of beams. By this means speckle is reduced. Laser source 12 provides reference beam, via mirrors 13, 16 and object beam the latter being expanded and collimated. Diffraction grating 9 provides the plurality of beams that shine through coded transparency 10 and intersect at a window in 18 to impinge on radiationsensitive surface 11.
Patent GB-1038938-A (GB)
Title: Improvements in or relating to reinforcing cords
IPC: D07B1/16
Filed: 1965-07-19
Abstract: The wire rope, Fig. 1 (not shown) comprises a centre core of three stranded filaments 5 of equal diameter, the core being surrounded by three larger elements 6 each of the same diameter and fitting in the valleys between said core filaments 5, and three further elements 7 each of the same diameter fitting within the spacer between the elements 6.  Each element 7 is smaller than an element 6 but larger than a core filament 5.  All the outer elements may be stranded filaments or only three may be stranded filaments, the other three being single filaments. One or more of the filaments or elements may have metallic or non-metallic coatings and a metallic or non-metallic element may be wound helically around the whole assembly.
Patent GB-1191843-A (GB)
Title: Improvements in or relating to Data Transmission Apparatus
Inventor: GREENAWAY JOHN FRANK
IPC: H04L27/20
Filed: 1966-07-07
Abstract: 1,191,843. Digital transmission systems. PLESSEY CO. Ltd. 7 July, 1967 [7 July, 1966], No. 30664/66. Heading H4P. A demodulator for differential phase-shift signals comprises a unit including a delay line to which the received signal is fed, the output of the delay line being selectively fed back to its input to derive a signal delayed by a multiple of the delay line period. Transmitter.-Input binary data is converted to dibit form, the dibits controlling the phase of a two-stage counter, fed by squarewave carrier frequency clock pulses, by subtracting from the count the binary number represented by a dibit. The output from the second stage is a signal in which each dibit is represented by *1¢ cycles of a square-wave which has a phase, relative to the preceding 1¢cycles, indicative of the dibit. This signal is filtered and transmitted. Receiver.-The signal is filtered and limited, the limiter output passing to a comparator and also to a unit which samples the signal several times per cycle. The samples pass to a gated feed-back delay unit which has a basic delay of one-quarter of a carrier cycle. By repeated feed-back the samples are delayed by multiples of a quarter cycle, the delay providing three outputs equal to the limited input signal delayed by 1“, and¢ 1¥ carrier cycles. These signals pass to a comparator wherein each is compared with the limited (and undelayed) signal. The resulting three outputs are fed to respective units, each comprising a Miller integrator and a threshold unit, to develop respective outputs corresponding to the three dibit signals other than 00, these outputs passing to a circuit giving a serial output identical to the signal at the transmitter input. The sampling pulses are also passed to counter/divider which outputs a clock signal synchronized with the received data. The comparator provides a fourth output by comparison of the 1“ and 1¥ cycle delayed signals, the result passing to a fourth integrator and threshold unit. The threshold unit pulses at each dibit level transition, and at each such pulse a pulse is either inserted or removed from the sampling pulse train fed to the divider to control the phase of the counter output.
Patent GB-1201899-A (GB)
Title: Closure device for the bottom outlet opening of a casting ladle
IPC: B22D37/00
Filed: 1969-06-17
Abstract: 1,201,899. Metal pouring ladles. METACON A.G. 17 June, 1969 [18 June, 1968], No. 30715/69. Heading F4B. In a casting ladle 2 incorporating a bottom pour nozzle 3 supported by a holding ring 7 and disc 8 firmly connected to the ladle casing 6, the opening and closing of the ladle discharge opening is controlled by movement of a slide plate 10 kept in tight sealing engagement with the disc 8. The slide-plate is carried by a frame 12 pivotally mounted at 13<SP>1</SP> for rotation about a horizontal axis 15 in bushes of a two-arm flexible lever 40. A ball and socket arrangement 22, 23 mounts the lever 40 on to a bracket 20 which is secured to the ladle casing 6. The ball pin 22 can be screwed in to pretension the lever 40 to ensure that the slide plate is urged upwardly against the disc 8. Alternately (Fig. 4, not shown) the bracket may be resiliently mounted on the ladle. The lever is rotated between its open and closed positions either by means of an hydraulic piston 28 or by manual displacement (Fig. 5). In an alternative embodiment (Fig. 6, not shown), the two-arm lever is replaced by a onearm flexible lever (41).
Patent GB-223080-A (GB)
Title: Improvements in fire alarms
IPC: G08B17/02
Filed: 1923-12-07
Abstract: 223,080. Sharman, R. T. Dec. 7, 1923. Alarms operated by inflammable devices.-A fire-alarm comprises a bell &c. actuated by a sand bucket-wheel set in operation bv a wire &c. extending from an inflammable cord mechanism. When a cord stretched around a box, Fig. 3 and hooked to the end of a lever s is burnt through, it allows this lever to rise under the pressure of a spring r acting on a disc p<1> upon a rod p. A wire o attached to this rod is connected to a lever k, Fig. 1, contained in one compartment of a box A, so that a sluice f, Fig. 2, is opened and sand allowed to fall and turn a bucket wheel e. A pinion i, Fig. 1, on the bucket-wheel axle e actuates the pivoted striker c of a gong &c. b, the striker leaving a segmental slot (not shown) to accommodate the axle e<1>. Inflammable trailers may be attached to the inflammable cord which is held away from the box, Fig. 3, by angle-pieces.
Patent GB-324127-A (GB)
Title: Improvements in or relating to the mouthpieces of tobacco pipes, cigar and cigarette holders and the like
IPC: A24F7/00
Filed: 1928-10-24
Abstract: 324,127. Prytherch, J. R. Oct. 24, 1928. Tobacco pipe and cigar and cigarette holders. -The mouthpiece bore is bifurcated, with openings at. the side. Each passage 6, 7 is equal in diameter to the main bore 11. Reference has been directed by the Comptroller to Specifications 16892/90, 5227/97, 10328/97, 20266/97, 15111/07, 269/08, 101,791 and 196,210.
Patent GB-737837-A (GB)
Title: An improved cock for controlling the flow of fluid from a pipe
IPC: F16K31/58
Filed: 1953-11-06
Abstract: 737,837. Valves. ECREMEUSES MELOTTE SOC. ANON. Nov. 6, 1953 [Nov. 12, 1952], No. 30800/53. Class 135. A cock closure member for use with a pipe 12, e.g. of a milking system pipeline having a hole 14 in its wall, comprises a body member 15 sealingly engaging the pipe and having an opening 31 therein and retaining means 16 removably clamping the member 15 on the pipe but permitting relative movement between them so that the opening. may be moved into and out of communication with the hole to control fluid flow therethrough. The member 15 is flanged at 15a and carries a resilient seal 30. The rotation of the closure member is limited by a pipe boss 35 entering a slot 36 in the retaining means. By unscrewing the nut 27, the closure member may be removed from the pipe for cleaning. A cover 40 closes the inlet 31 when a hose 34 is disconnected.
Patent GB-611315-A (GB)
Title: Improvements in or relating to door checks
IPC: E05F5/02
Filed: 1945-11-16
Abstract: 611,315. Burglar-alarms. THOMPSON, H. G. Nov. 16, 1945, No. 30820. Drawings to Specification. [Class 118 (i)] [Also in Groups XXV and XXXII] A door check is provided with a micro switch connected with a burglar alarm system so that the alarm is operated by the opening of the door. Specification 21322/10, [Class 65 (i)], and U.S.A. Specification 2,074,008 are referred to.
Patent GB-638592-A (GB)
Title: Improvements in or relating to frames for spectacle-type goggles
IPC: G02C1/08
Filed: 1947-11-20
Abstract: 638,592. Goggles. FISH OPTICAL CO., Ltd., and McCABE, V. G. Nov. 20, 1947, No. 30858. [Class 97 (i)] Spectacle-type goggles comprise a rim for each eyepiece, a break in each rim united by a screw or bolt to allow removal of the eyepieces and side arms pivoted to the temporal sides of each rim at points different from that at which the bolt is located, the side arms being curved inwardly so as to grip behind the wearer's head. As shown, the rims 12, 13 are divided in the upper portion, one end of a bridge 17 being welded to the rim at one side of the break, the rim having an attachment 23 at the other side through which a screw 24 passes into the threaded end of the tubular bridge 17 to hold the eyepieces in place. An auxiliary bridge 16 may, if desired, be provided. The side arms each comprises flexible strips 25, 26, the strip 25 bearing a U-shaped clip (not shown) engaging an ear 19 fixed to the rim and having a portion 28 overturned to engage the strip 26, the ends of which are bent to engage the back of the wearer's head. The latter strip has a series of holes 29 in which a screw 30 on the strip 25 may be engaged to vary the length of the arms. Leather screens 20 are also provided and the eyepieces 14, 15 may be of coloured or " safety " glass.
Patent GB-762727-A (GB)
Title: Improvements in or relating to showcards, signs and the like
Inventor: LINDSEY GEORGE
IPC: G09F13/04
Filed: 1954-10-26
Abstract: 762,727. Signs. ACME SHOWCARD & SIGN CO., Ltd. Sept. 23, 1955 [Oct. 26, 1954], No. 30880/54. Class 3 (2). A showcard, sign or the like comprises a cardboard panel 10 having cut-out letters 11 covered with perforated, coloured translucent material 12 which is embossed so as to stand out in relief. The panel 10 is backed by a corrugated, indented or embossed screen 14 which may, in certain circumstances, be flat or concave and is rendered reflecting as by spraying with metal or covering with metal foil. The screen 14 is adhesively secured to one side of the panel 10 and is releasably connected to the other side through a tongue-and-slot connection, see Fig. 2 (not shown). A cover 18 is hinged to the panel 10 and connected to the screen 14 by a tongue- and-slot connection, the cover 18 being provided with vents 20. A collapsible box 22 is provided on the back of the screen and the said members are apertured to receive a lamp and lampholder as shown.
Patent GB-537015-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: B01D46/00
Filed: 1939-11-27
Abstract: 537,015. Centrifugal pumps. LA BOUR, H. E. Nov. 27, 1939, No. 30907. [Classes 110 (i) and 122 (v)] A centrifugal pump comprises a main body 11 with inlet and discharge chambers 28, 45, separated by a wall 26, and formed of a light metal such as aluminium. The impeller housing is made of wear-resisting metal and comprises two parts 52, 65 connected at 62 by a telescopic joint, the wall 52 having an inlet port 53, while the wall 65 is integral with a cover plate 12 bolted to the body 11. The body 11 is supported by a plate 59 carried by the housing 60 of the driving motor. The inlet opening has a hinged valve 36 to prevent escape of liquid when the pump is idle, and priming liquid may be introduced by removing the plate 40 over the valve. The arrangement enables the impeller housing to be easily removed by undoing bolts 54, 55, and the impeller may then be removed from the driving shaft 73 by undoing screw 96. The shaft is attached to the motor flywheel 100 by a spider 77. The stuffing box may then be removed by undoing nuts 93. The arrangement of the inlet and discharge chambers above the impellers makes the pump self-priming, whether it is vertical or horizontal. The stuffing-box comprises rubber sleeves 85, 86, with flanges clamped against a block 87 by annular members 88, 89 held together by bolts 90. Specification 511,304 and U.S.A. Specifications 2,166,358 and 2,110,883 are referred to.
Patent GB-887810-A (GB)
Title: An improved portable folding cot or carrier
IPC: A47D13/02
Filed: 1960-09-08
Abstract: 887,810. Portable cots. ELLIOTT, K. Sept. 8, 1960, No. 30920/60. Class 108(1). The flexible walls 4 of a cot are connected by gussets 9 to the end walls 6, 7 so that they may all be collapsed overlying the base 3. The base in then folded over on itself to form a flat package which may be carried by the handles 13 secured to the underside of the base. When erected two-part stiffeners 15 may be inserted in pockets 18 and the end walls 6, 7 may also be provided with stiffeners.
Patent GB-311786-A (GB)
Title: Improvements in and relating to the prevention of rancidity in vegetable oils when used as ingredients of plastic compositions for coating fabric, paper and the like
IPC: C11B5/00
Filed: 1927-11-17
Abstract: 311,786. Scharff, G. E., and Nobel's Explosives Co., Ltd. Nov. 17, 1927. Addition to 256,654. Coating-compositions. - Rancidity in the vegetable oil constituent of plastic compositions for coating paper, fabric, and the like is prevented by the addition of a mixture of a metallic sulphide with zinc oxide or magnesium oxide. In an example, a composition comprises nitrocellulose, camphor, vegetable oil, fillers, and 1-5 per cent, relative to oil, of a mixture of 95 lb. of sulphide of antimony or arsenic with 5-8 lb. of either oxide. The Provisional Specification also specifies the sulphides of lead and zinc.
Patent GB-1214879-A (GB)
Title: Method and apparatus for the determination of the correct exposure factors to be used in photographic colour printing
IPC: G03B27/73
Filed: 1968-06-28
Abstract: 1,214,879. 879. Photographic colour printing. AGFA-GEVAERT A.G. June 28, 1968 [June 30, 1967], No.30971/68. Heading G2A. The invention relates to a method for the determination of the correct exposure factors to be used in photographic colour printing of an original, and to apparatus for printing an original after determination of its exposure factors by this method. A cathode ray tube 15 effects pointwise scanning illumination of a reference original 17 and the emerging light is split into three beams, one of each of the three primary colours, by a dichroic beam splitter 18. Each of the beams falls on a secondary electron multiplier 22, 23, 24 by way of a colour filter 19, 20, 21 and the output signals are passed by converters 25, 26, 27 either to a counter 28, 29, 30 or to a pulse discriminator 31, 32, 33. During a first scan of e.g. a hundred points, the counters 28-30 measure the sum of all the values of the scanning light pulses, and this sum is utilized to give the average transparency value T m  for each of the three colours. The pulse discriminators 31-33 are set to these values and, during a second scan pass only the pulses corresponding to these average values to counters 31-33. The exposure factors for this reference original are known, and the six density characteristics (three average values and their frequency of occurence) serve as an address for these exposure factors in an information store. This is repeated with approximately 1000 reference originals to give a comprehensive store. An original to be printed is similarly scanned to determine the density characteristics thereof, and the information store searched for the exposure factors corresponding to these density characteristics. In a photographic colour printing apparatus an original film strip 1 is moved past a scanning station 14 and a printing station. As described above, each original has its density characteristics determined and the corresponding exposure factors are taken from the information store and passed to filter control apparatus 13. While one original is being printed, the next is being scanned.
Patent GB-959001-A (GB)
Title: Motor speed control by space transmission of electromagnetic energy
IPC: H02P7/295
Filed: 1962-08-13
Abstract: 959,001. Control of D.C. motors. SINGER CO. Aug. 13, 1962 [Aug.31, 1961], No.31015/62. Heading H2J. [Also in Division G1] The speed of a sewing machine motor 12 is controlled by the change in space coupling between a radiating circuit element 14 and an antenna 18 brought about by the movement of the operator's foot relative to the element 14 or of the operator's knee relative to the antenna 18, the body of the operator forming part of the energy path. A control frequency of 27.255 Mcs./g. modulated at approx. 1000 c/s. is referred to, and as an alternative control by 10 c/s. or 60 c/s. pick-up by the operator from the mains is described. A crystal controlled carrier oscillator, a phase shift transistor audio oscillator and a transistor RF amplifier modulator is described with reference to Fig. 3 (not shown), the output circuit being tuned to resonance when the operator is in a sewing position with her foot on the element 14. The signal pushed up on antenna 18 is amplified in transistor amplifier 31, detected by the diode circuit 32 and applied to a band-pass transistor amplifier 33 of narrow band-width to avoid spurious operation by an adjacent signal where a group of machines are installed. The detected signal is applied to a controlled rectifier stage 36 through an isolation amplifier stage 34 which isolates the receiver section from motor noise, and a PNP transistor 35. Controlled solid state rectifier 40 is connected between the armature 45 and field winding 44 of the motor across A.C. source 13, and the potential on gate electrode 43 is controlled by the effect of the signal varied impedance of transistor 35 on the potential across resistor 48. When pick up from the mains is used for control purposes it is essential that the signal and power supply to the motor should be in phase. Different modulation frequencies may be used with a batch of adjacent machines. Specification 953,061 is referred to.