baber/WOPTO huggingface dataset:
Patent GB-342558-A (GB)
Title: Improvements in power-actuated typewriters
IPC: B41J23/12
Filed: 1930-02-28
Abstract: 342,558. Typewriters. WADE, H., 111, Hatton Garden, London.-(Electromatic Typewriters, Inc.; 60, Commercial Street, Rochester, New York, U.S.A.) Feb. 28, 1930, No. 6675. [Class 100 (iv).] Relay actions ; carriage and case-shift mechanism. -In mechanism comprising a relay device which on depression and release of a key is operated twice to shift and return a paper-carriage, type-basket, or other member, the direction of movement of the member is positively determined by means of a key-controlled interponent, the arrangement preventing the member from being moved in the wrong direction in an operation following one in which the relay device has failed to act. In the carriage-shift mechanism shown in Fig. 1, the carriage 11 is supported at each end of rocking arms 13, 14, one of the arms 14 being connected to the framework by a toggle 17, 18, which is connected to the framework by a toggle 20, 21. Pins 36, 37, arranged on the toggle arm 21 at equal distances from the pivot 22, co-operate with an interponent or head 35 on a link 34 which is carried by a bell crank 31 and has a pin 43 engaging a slot in a shiftkey lever 39. The bell crank is connected by a link 30 to a lever 27 carrying a cam 29 which is controlled by the shift-key lever and co-operates with a driving-roller 26 in the manner described below. On depression of the shift-key lever, the link 34 is depressed, the cam engages the driving- roller and makes a half-revolution, the lever 27 and bell crank 31 are rocked, the head engages the pin 36 and moves rearwardly the toggle arm 21, and the carriage is shifted upwards. A dwell in the cam then permits a spring 32 to return the bell crank into engagement with a stop 33. On release of the shift-key lever, the cam again makes a half-revolution and the head co-operates with the pin 37 to return the toggle arm 21 and thereby lower the carriage into the normal position. The shift and return movements of the carriage are limited by the straightening of the toggles 20, 21 and 17, 18, respectively, positive stops being dispensed with. The carriage is balanced by a spring 25 connected to elbows 23, 24 on the arms 13, 14, the elbows moving out of alignment when the carriage is raised. The cam is urged into engagement with the driving-roller by means of a spring-urged lever 46, Fig. 4, co-operating with either of a pair of pins 45 on the cam, movement being normally prevented by engagement of either of a pair of lugs 52 on the cam with a detent 51 on a lever 49 having a lug 53 engaging a fork 41 on the shift-key lever. On depression of the shift-key lever, the cam engages the driving-roller and after making a half-revolution is arrested by engagement of one of the lugs 52 with a detent 50 on the lever 49. On release of the shift-key lever, the cam is again moved into engagement with the driving-roller, and after making a half-revolution is arrested by the detent 51.
Patent GB-612619-A (GB)
Title: Improvements in or relating to recording apparatus
IPC: G01D15/28
Filed: 1946-03-04
Abstract: 612,619. Recording-apparatus. KAPELLA, Ltd., and REASON, R. E. March 4, 1946, Nos. 6678, 20782 and 29221. [Class 106 (iv)] Recording - apparatus wherein a two - coordinate record is made on a travelling-sheet is such that the part of the record surface which is co-operating with a marking element during recording is curved cylindrically and concavely about the axis of oscillation of the marking element. Figs. 1 and 2 show an electrically-operated recording-apparatus wherein a penarm C is carried by spring ligaments C<1> secured to a coil B<1> whose pivots B<2> are connected by spiral springs B3 to a non-magnetic frame B' fixed to a magnet A having a soft iron core B between its poles embossed by the coil B<1> so that the pen arm C oscillates with the coil about its axis X-X, but has free vertical play. A flexible recording strip D is drawn from a supply spool D<1>, round a roller D<2>, and through a guide D<3> by a sprocket D<4>, electrically driven, the guide D<3> being cylindrically curved about the axis X-X so that the record strip is so flexed where it co-operates with the pen C. One element bounding the guide may be resilient or the strip may be urged against a plate by spring- operated plungers. The strip may be visible from above throughout its length or it may be partly covered. The pen arm may oscillate about a vertical axis and the strip move vertically where it contacts the pen. As shown in Fig. 3, the pen may be mounted on a vertical ligament C<2> and it may be bent forward at an angle, the lower end being bent down normal to the record surface. The pen arm may be driven in accordance with pressure as in a Bowdon gauge or in accordance with a temperature responsive element instead of electrically. Marking action. Marking may be by ink, pencil or scribing on paper or by electrical methods. Where marking is by ink a hollow pen arm C<3> is fed by induction from a reservoir whose liquid level is approximately that of the median plane Y-Y, the end C<5> of the feedpipe and the end C<6> of the pen arm being equidistant above and below the axis X-X and joined by a looped flexible rubber tube C<7>. As shown in Fig. 7, where marking is by ink, the rubber interconnection biasses the pen arm E toward the record strip, its tension being adjustable by means of a screw E<7> and the level of the reservoir being adjustable by means of a screw E<9>. Safety-devices. A device for preventing damage to the pen is shown in Fig. 3, wherein a lever H pivoted at H<3> is biassed by a spring H' to hold the pen clear of the strip unless a solenoid H<5> is energized by the closing of the circuit to the electric motor which drives the sprocket D'. Alternative means are shown in Fig. 10, wherein a spring-loaded plunger J frictionally engages the record strip and moves forward with the strip to close a contact to cause the pen to co-operate with the strip and moves backward with the strip to close another contact to cause the pen to lift away from the strip.
Patent GB-1415213-A (GB)
Title: Bicyclononane diol esters thereof and process for their  manufacture
IPC: C07D493/04
Filed: 1973-02-12
Abstract: 1415213 Dioxabicyclononane derivatives CIBA-GEIGY AG 12 Feb 1973 [10 Feb 1972 10 May 1972] 6811/73 Heading C2C Novel dioxabicyclononane derivatives of the formula wherein Z 1  and Z 2  each are free or esterified hydroxy groups are prepared by reducing compounds of the formula where X 1  is H and X 2  is OH, or X 1  and X 2  together form an oxo group, and, if desired, esterifying the resulting compound in which Z 1  and Z 2  are OH. The compounds are intermediates in a process for the preparation of prostaglandins particularly PGF 2 α and PGF 3 α.
Patent GB-349146-A (GB)
Title: Improvements in and relating to the mounting of sound recording and reproducing devices for gramophones
IPC: H04R11/08
Filed: 1930-03-01
Abstract: 349,146. Gramophones. WRIGHT, A. F. J., Billet Works, Billet Road, Walthamstow, London. March 1, 1930, No. 6829. [Class 40 (ii).] Consists in a method of mounting an electromagnetic pick-up or recording device in such a manner that the resonant frequency of the system is so low as to be imperceptible. The invention is shown as applied to a pick-up of the kind described in Specification 321,688, [Class 40 (iv), Telephones &c.]. The pick-up has two lugs 6, 7 which embrace a rectangular enlargement 3 on the end of a pivoted tubular carrier arm 1. The member 3 has holes drilled therein at opposite sides, in which steel centres 10, abutting against rubber pads 8 and surrounded by rubber bushes 9, are located. The parts 10 form bearings for pivot points 11, 12 carried by the lugs 6, 7, one or both of the pivots being adjustable if desired. With this arrangement, the compliance of the device in a direction parallel to that in which the point of the.stylus vibrates is increased. Modifications of details in the construction of the pivots are described.
Patent GB-1263864-A (GB)
Title: A synchronous motor
IPC: H02K21/14
Filed: 1970-02-12
Abstract: 1,263,864. Electric motors. SIEMENS A.G. 12 Feb., 1970 [13 Feb., 1969], No. 6922/70. Heading H2A. A synchronous electric motor includes an excitation coil 1 mounted on a former 2 of electrically insulating material having a projection 4, or projections, supporting a rotor, the former being mounted between two stator pole supports 11, 12 so as to be coaxial with an array of stator polepieces 9, 10. The polepieces are stamped out of the supports 11, 12 and bent over to engage the inner surface of the former. The rotor shaft 3 may be of plastics material and is formed integrally with a support 7 for a ring shaped permanent magnet 8. Metal bearing parts may be formed in the projection 4. Alternatively the shaft 3 may be of steel. The pole supports may have interengaging tabs and slats, or may be adhesively bonded, welded or riveted together. In a modification, Fig. 10 (not shown) the former has a projection on the motor axis, the projection supporting a plastics part (33) carrying the rotor magnet and including an output shaft (34).
Patent GB-1416532-A (GB)
Title: Electrical switches
IPC: H01H23/12
Filed: 1972-02-16
Abstract: 1416532 Mechanical switches LUCAS ELECTRICAL CO Ltd 12 Feb 1973 [16 Feb 1972] 7087/72 Heading H1N A switch in which an insulating actuating member 2, Fig. 1, is movable relative to a switch body 1 to a first, second or third (rest) position has a relatively rigid contact arm 14 mounted to the body by a resilient flexible arm 12, the contact arm 14 being movable by a lobe 23 or 22 of the actuating member to be electrically connected to a first fixed contact 3 in its first position, or to a second fixed contact 6 in its second position or to neither of these contacts in its third position but wherein it abuts against another fixed contact 10 and a pair of stops 16, 17. Rib 9 provides an insulating attachment point for a fixed contact 8 which is permanently connected to the arm 12 and an insulating spacer 20 is interposed between the arm and the fixed contact 10. In the first embodiment of Figs. 1, 2, 3 the internal contact parts are duplicated to form a double-pole switch having a common actuator member pivoted to the body and each pole of the switch is actuated in a similar manner. In a second embodiment, Figs. 4, 5, 6 (not shown), the first pole of the switch is similar to that described above but the first and second fixed contacts (32, 33) are U-shaped and common to both poles. The movable contact arm for the second pole is in the form of a resilient member (38) attached to the body and in permanent engagement with a fixed contact (39). Instead of the lobes (41, 42) a single finger (43) on the actuator member (40) acts on one or other end of the resilient member (38) to engage it in electrical contact with fixed terminal (32) or (32) for the first and second positions respectively. All fixed contacts extend through the switch base in the form of integral spade terminals.
Patent GB-126118-A (GB)
Title: Improvements in Hoes.
IPC: A01B1/08
Filed: 1918-04-27
Abstract: 126,118. Elwell, Ltd., E., and Thornton, C. P. April 27, 1918. Hoes. - The blade a of a Dutch hoe is made channel-shaped with vertical sides a<1>, a<2>, rounded corners a<5>, a<6>, and front and rear cutting-edges a<3>, a<4>. It is attached to a forked piece b which is connected to the handle by the socket attachment described in Specification 125,245, [Class 61 (i), Hand-tools &c. handles], or by other means.
Patent GB-543830-A (GB)
Title: Improvements in and relating to driving mechanism for textile spinning and twisting machines
IPC: D01H1/20
Filed: 1941-06-05
Abstract: 543,830. Driving drawing rollers of spinning frames. MEHTA, V. L. June 5, 1941, No. 7142. Convention date, June 1, 1940. [Class 120 (ii)] In a spinning or twisting machine the drive to the drawing rollers and the drive to the spindles are effected by two separate motors during the whole operation of the machine, the spindles being driven through the intermediary of the tin roller shaft; means may be provided for starting up the spindles and draft rollers in timed relation so that the spindles may lead the rollers. As shown the tin roller 4 driving the spindles in the usual manner is belt or chain driven from the motor 1 and the twist wheel 13 to which the draft rollers are geared is driven by a belt or chain from an independent motor 1a. The speed of the drawing rollers may be varied to give a yarn of non-uniform twist. The Specification as open to inspection under Sect 91 comprises also a modification in which the twist wheel is driven by a belt or chain from a member which may be clutched to the tin roller shaft, at any time after the machine is started. This subjectmatter does not appear in the Specification as accepted.
Patent GB-103928-A (GB)
Title: Improvements in Posts for Binding Loose Leaves.
Inventor: STEEL FREDERICK
IPC: B42F13/12
Filed: 1916-05-19
Abstract: 103,928. Steel, F. May 19, 1916. Post files.-A filing-post for a looseleaf binder comprises a shank a, preferably of celluloid, bone, &c., cut diametrically at t to form tongues c, on to which a removable. head c may be sprung, and having a fixed head b at the other end, grooves d, f being formed into which removable washers g may be sprung.
Patent GB-110535-A (GB)
Title: Improvements in the Manufacture of White or Light Coloured Pigments.
IPC: C09C1/36
Filed: 1917-05-18
Abstract: 110,535. Kilburn, B. E. D., (Norske Akticselskab for Elecktrokemisk Industri, Norsk Industri Hypotekbank). May 18, 1917. Drawings to Specification. Pigments containing amorphous titanium oxide in association with other materials such as calcium or barium sulphate are heated to 000- 1050 C., with or without a catalyst such as a halogen compound, for instance, zinc chloride or ammonium fluoride, to convert the titanium oxide wholly or partly into a crystalline form. Specification 104,885 is referred to.
Patent GB-833842-A (GB)
Title: Improvements in or relating to transformers
Inventor: HOBSON ALFRED
IPC: H01F27/42
Filed: 1958-03-06
Abstract: 833,842. Transformers; transformer arrangements. SMITH HOBSON Ltd. March 6, 1958, No. 7276/58. Classes 38 (2) and 38 (4). The exciting ampere-turns of a current transformer I are provided by an amplifier 8 whose input signal is derived from a separate transformer II. The primaries 1, 4 of the two transformers, which have identical turns ratios, are in series and may be a common single straight conductor; the secondaries 2, 5 are also in series with each other and with a load 7 which may be a measuring instrument or protective device. A third winding 6 on transformer II has induced in it a current which it is stated is proportional to the vector difference between the primary and secondary ampere-turns, i.e. to the magnetizing ampereturns of the main transformer I. This current provides the input signal to the amplifier 8, and the output is fed to a third winding 3 on transformer I where it provides nearly all the magnetizing ampere-turns. The amplifier may be of the thermionic valve or transistor type and an example of the latter is described.
Patent GB-1505801-A (GB)
Title: Hospital beds
IPC: A61G7/018
Filed: 1976-02-25
Abstract: 1505801 Adjustable hospital beds KERWIT MEDICAL PRODUCTS Inc 25 Feb 1976 [24 Dec 1975] 07397/76 Heading A4J [Also in Divisions F1 and H5] A hospital bed comprises pivotally interconnected patient supporting panels 24-30 adjustably mounted on a vertically adjustable support frame 12, adjustment of the panels and the frame being effected by hydraulic piston and cylinder units to which fluid is pumped by a pump coupled to a foot pedal and to a switch and operated by either the foot pedal 21 or, when the switch is depressed, a compressed air motor (see Division F 1). Each end of the support frame 12 comprises a central pedestal 88 vertically adjustable relative to a base 90 by a piston and cylinder unit 94, 92. The head supporting panel 24 comprises a bracket 62 provided with a pin 64 releasably engaged with one end of a link 60 pivotally connected to the free end of a piston rod of a piston and cylinder unit 114 secured to the bed frame. In an emergency, the head rest may be returned to a horizontal position merely by lifting the rest to cause disengagement of the pin 64 to allow the head rest to be lowered manually.
Patent GB-1007721-A (GB)
Title: Automatic brake adjuster
IPC: F16D65/56
Filed: 1963-02-25
Abstract: 1,007,721. Automatic brake adjusters; securing handle on brake adjusters. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as TEVES MASCHINEN-UND ARMATURENFABRIK ALFRED KOMM. GES]. Headings F2E and F2U. In an automatic brake adjuster comprising a screw-threaded spindle 14, an adjusting nut 3 screw-threadedly mounted thereon and a rotatable ring 8 which, upon actuation of the brake is adapted to be coupled to the nut 3, a sleeve 10 is rotatable upon actuation of the brake by means of an operating pin 11 to exert a limited torque on the ring 8 through a non- positive coupling 9. The adjuster may be used with internal and external shoe-drum brakes or, as shown, with calliper disc brakes. The adjuster is mounted in a brake-operating lever 27 which is pivoted on an arm 31, the spindle 14, the head 38 of which engages with the other arm 30, passing through an aperture 40. The arms 30, 31 carry pads 32 and are pivoted at 40, 41 to the brake casing. Anti-clockwise movement of the lever 27 to operate the brake causes the pin 11, which extends through aperture 28 in the lever, to rotate in the direction of the arrow in Fig. 1. The pre-stressed torsion spring 9, the ends 17, 18 of which are connected to the sleeve 10 and ring 8 respectively is just sufficient to overcome the frictional resistance of the released nut 3 and so rotate the toothed ring 8 and the nut 3 which is coupled to the ring in this direction of rotation by the spring- loaded pawl 5. Rotation of the nut 3 continues to shorten the brake linkage, the spring- loaded pawl 4 riding over the teeth 19 in the cross-head 1 attached to the lever 37, until the pads 32 contact the disc 29 when the braking force produces enough friction between the end face of the nut 3 and the friction ring 2 disposed in the end face of the cross-head 1 to hold the nut fast. Continued rotation of the sleeve 10 by the pin 11 is taken up by the spring 9. On release of the brake spring 33 moves lever 27 clockwise and the torsion spring 9 is returned to its initial position in which its outer periphery engages the wall of the sleeve 10 by the pin 11. During remaining movement of the lever 27 spring 9 clamps ring 8 to sleeve 10 to permit pawl 5 to ride over as many teeth 20 as it did during application. The nut 3 is prevented from rotating backwards by the pawl 4 engaging teeth 19 on the cross-head 1.
Patent GB-1531731-A (GB)
Title: Viewing device
IPC: G02B27/04
Filed: 1975-12-24
Abstract: 1531731 Optical viewer D M BENN 24 Dec 1975 [22 Feb 1975] 7562/75 Headings G2J and G2X A device for viewing films and slides comprises a one-piece moulded plastics body 10 in a generally flat form having two integral hinges 12, 14 which define three sections 10A, 10B and 10C, section 10A being adapted to carry a viewing lens and section 10C being so adapted to hold both slides and film strips for viewing (when the device is folded) through the lens, the film strips being movable transversely to the viewing axis. Preferably slides are held by brackets 38 and film strips by slots (42). Reference has been directed by the Comptroller to Specification 1426921.
Patent GB-847103-A (GB)
Title: A method of making a bimetallic billet
IPC: B23K9/23
Filed: 1957-03-07
Abstract: 847,103. Welding by fusion; rolling; making billets and strip. COPPERWELD STEEL CO. March 7, 1957 [Aug. 20, 1956], No. 7566/57. Classes 83 (2) and 83 (4). A bi-metallic billet comprising a facing-plate 3, e.g. stainless steel, on a backing-plate 2, e.g. carbon steel, is made by sealing at least a portion of the joint 4 between the plates by a fluxless weld 7 and subsequently depositing a submerged arc weld 8 over the fluxless weld 7. The facing plate 3 is slightly smaller than the backing-plate 2 to allow fillet welds to be made. The seating weld 7 is made by inert gas shielded metal arc welding. Both welds are made with austenitic stainless steel welding-rods. The billet is subsequently heated and rolled down to clad strip. To ensure bonding during rolling the interfaces of the plates are nickel-plated. The outer faces may also be nickel-plated, in which case the nickel acts as a lubricant during hot rolling. Facing plates 3 may be provided on both faces of the backing plate 2.
Patent GB-1498731-A (GB)
Title: Fluid mixing valve
IPC: F16K11/078
Filed: 1975-02-22
Abstract: 1498731 Valves D J GOLDSMITH 20 Feb 1976 [22 Feb 1975 14 March 1975] 7567/75 and 10697/75 Heading F2V  A mixing valve has inlet ports 16, 53 and an outlet port 15 leading to a bore in which a valve member 20 is movable axially to control flow rate and rotationally to control relative inlet flows, the valve member having two arcuate control surfaces 21, 22 each co-operable with separate ones of the ports. As shown the valve member 20 has cylindrical parts 23, 24 closely fitting in bores 51, 52 and made fluid tight by 0-rings 25, 26, 27. Arcuate cut outs in locations 21, 22 co-operate with the inlet port 16 and outlet port 15 respectively. The ports 15, 16 have circumferential and axial edges intersecting at right angles. A control head 33 has a handle 40 pivotally attached thereto by a pin 36 and to the valve member by a pin 32 thus providing for axial and rotational movement of the valve member by the handle. The handle engages a detent pin 43 with the valve member via a projection 41. A screw 44 engages a face 46 to limit rotational movement, Fig. 2 (not shown).
Patent GB-399851-A (GB)
Title: Improvements in or relating to film charging devices for use with cinematographic cameras and projectors
IPC: G03B17/26
Filed: 1932-03-15
Abstract: 399,851. Kinematograph apparatus. COLLINGS, C. E. HILLERY-, 9N, Camberwell Green Estate, London. March 15, 1932, No. 7672. Addition to 375,912. [Class 97 (i).] The tongues or projections cut from a flat wall of a film tray to enter slots cut in a flat wall of another film tray, and thus detachablv secure the travs together, as described in the parent Specification, are located diametrically opposite one another on the wall, and are each spaced 90‹ from the centres of the film openings in the trays, or from a point midway between the extreme limits of the film openings when the openings are not identically placed in the trays. Figs. 1 and 2 show, in plan, trays A, B, the tray A having a lateral film opening a2, and a cut-away portion a<3> and perforations a<4> in its upper wall. Tongues a<1> are cut in the lower wall of tray A to engage slots formed by cutting tongues b<1> in the upper wall of tray B, and the tongues are located as stated above with respect to film openings a<2>, b<2>. Each tongue may be cut so that relative rotation of the trays is necessary to secure them together.
Patent GB-1533587-A (GB)
Title: Method of determining particle size
IPC: G01N15/04
Filed: 1976-05-12
Abstract: 1533587 Measuring the size of particles M J GROVES and J A TEMPEL 12 May 1976 [24 Feb 1975] 7703/75 Heading G1A In a method of determining the size of particles in a liquid continuum contained in a centrifuge tank rotatable about an axis, a size analysis is carried out at two or more different points which are spaced at different radial distances from the axis of rotation of the tank. The size determination may be effected during or after the particles have been subjected to centrifugal action. The analysis may be optical density measurements employing a centrifugal photo densitometer as described in Specification 1533586. Alternatively, x-rays may be used or the samples are withdrawn by means of a hollow needle or needles. The measurements may be processed by an extrapolation technique using an analogue computer.