baber/WOPTO huggingface dataset:
Patent GB-332020-A (GB)
Title: Improvements in talking machines
IPC: G11B3/60
Filed: 1929-06-12
Abstract: 332,020. Gramophone Co., Ltd., and Crick, 0. J. P. June 12, 1929. Magazine gramophones.-Means for gripping a disc record for use with the record-conveying mechanism of a magazine gramophone comprises a pair of relatively-movable members 4, 15, which are adapted to be inserted into the centre hole of a record, and after insertion one member 15 is adapted to move the record with regard to the other member 4 so as to cause a part of the wall of the hole to be engaged within a recess 10 in such member 4. The member 4 is hollow in order to accommodate a slidably-mounted pin 12 having an enlarged head 13 disposed within a corresponding recess in the head 6 of the member 4. The hollow rod 4, together with a bell-shaped abutment member 5, is secured by a nut 9 in the end of a channelshaped arm 1 which is fixed at its other end to a post 2 movable vertically and horizontally in a sleeve 3. A slot 33 provided in the central vertical plane of the hollow rod 4 adjacent the recess 10 is adapted to be disposed in alignment with a slot 34 in the pin 12 so as to form a housing for the hooked-shaped end 15 of a spring 16 anchored at its other end in a slot 17 in the head 6 of the rod 4. The width of the hook 15 is substantially equal to the diameter of the rod 4 and in its normal or rest position projects in part from the slot 33 at the side distant from the recess 10 as shown in Fig. 1. When the arm 1 is swung horizontally and lowered to engage the lower end of the rod 4 in the centre hole of the record 35 at the top of a pile, the hook 15 is caused by engagement with the edge of the aperture to recede into the slots 33, 34, as shown in Fig. 2, and the spring 16 is placed under tension The recess 10 at this time registers with the wall of the aperture and the hook 15 moves the record to the left and causes it to be firmly engaged in the recess 10. During lowering movement of the record, the lower end of the pin 12 engages with the upper end of the turntable spindle and is thrust longitudinally of the rod 4, thereby causing a pin 21, which is fixed transversely of the slot 34 in the pin 12, to engage the part 22 of the spring 16 in such manner that the hook 15 is withdrawn into the slots 33. 34. This action results in the record being removed from the recess 10 and deposited in position on the turntable. The abutment 5 serves during lifting and swinging movement of a record to prevent rocking movements of the latter. Manual means for removing a record from the rod 4 consists of a lever 23 pivoted by means of a pin 29 and elongated slot 30 in the underside of the arm 1. The end 24 of the lever 23 contacts with the underside of the arm 1 and the other end projects through a slot in the head 6 of the rod 4 into a recess 26 formed in the upper part of the pin 12. The pin 12 is raised within the xod 4 to release a record by lifting a knob 27 on the lever 23.
Patent GB-1076842-A (GB)
Title: Improvements relating to spining
Inventor: MACKIE JOHN PRINGLE
IPC: D01H13/30
Filed: 1963-05-08
Abstract: 1,076,842. Wet spinning. JAMES MACKIE & SONS Ltd. Aug. 7, 1964 [May 8, 1963], No. 18218/63. Heading D1D. A ring spinning frame for the wet spinning of green or retted flax or similar fibres, e.g. ramie comprises a water trough 9 for wetting the roving mounted so that a lip 16 over which the roving 1 passes is approximately level with and adjacent to the nip of the back rollers 6, 7 of the drafting head. In the case of fragile, e.g. bleached, rovings rollers 3, 5 are provided and driven at approximately the same speed as rollers 6, 7 to draw the rovings from bobbins 2 to prevent tension being applied to the wetted rovings. Guide plates 4, 13 are provided and a bar or roller 12 causes the rovings to pass below the surface of the liquid. A lower, supporting apron 14 is provided in the drafting zone.
Patent GB-1262258-A (GB)
Title: A portable box-like housing for a rotary duplicator
Inventor: RITZERFELD GERHARD
IPC: B41L3/00
Filed: 1970-04-16
Abstract: 1,262,258. Feeding and delivering sheets. C. RITZERFELD. 16 April, 1970 [25 April, 1969], No. 18283/70. Heading B8R. A housing for a rotary duplicator 2, 4, Figs. 1 and 3 comprises a U-shaped part comprising side walls 7 and a bottom 23, and front and rear walls, the side walls supporting a feed-table portion 8 with guide rails 14, and a delivery guide plate 16. A cover portion constitutes a feed table 10 having a handle 30 and pivotable about pins 9 and the front wall is formed as a feed table support 13 pivotable about pins 11. In the operative position, the support 13 abuts a member 12 and the table 10 rests on the support, the table 10 having guide rails 15 and a handle 15. The rear wall is formed as a delivery table 18 pivoted on pins 17, the table in the operating position abutting the plate 16, and supporting, by means of a magnet 41, Fig. 4, a sheet stop plate member 40 connected to a bottle stopper 42. In the closed position, locating members 26, 27 on the table 10 engage in holes 28, 29 in the support 13 and table 18 respectively, and the machine can be carried by the handle 30, while the member 40 is removed from the table 18 and attached to the plate 16, a bottle 45 containing dampening liquid being screwed into the stopper 42. In the operative position the bottle is detached from the stopper, mounted on a pivotable bracket, and connected to a sheet moistening device by means of one or more tubes.
Patent GB-613608-A (GB)
Title: Improvements in or relating to television and like receivers
IPC: G02B17/08
Filed: 1946-06-18
Abstract: 613,608. Optical-projection systems. RAULAND CORPORATION, and PERKINELMER CORPORATION. June 18, 1946, No. 18284. Convention date, June 19, 1945. [Class 97 (i)] [Also in Group XL (a)] Apparatus, particularly for the projection of television images, comprises a cathode-ray tube, a concave spherical reflector, a transparent hemispherical shell of uniform thickness concentric with the mirror and a correcting plate in the path of the light from the mirror figured to reduce the spherical aberration of the reflector and shell. Fig. 2 shows the system forming part of the envelope of a cathode-ray tube having a neck 10 for the electron source and a fluorescent screen 15. The outer wall 13 forms a transparent shell of heat-resisting glass and is concentric with the reflector formed on the inner surface of the wall 12. A second substantially hemispherical shell 17 may be provided also concentric with the mirror, the figured plate 16 being disposed at the common centre of curvature. Fig. 5 shows a modification in which the optical elements 19, 21, 22, 23 are separate from the cathode-ray tube 24 and the centre of the mirror is masked by a baffle 20. The glass of the shells and correcting plates is so chosen as to minimize chromatic aberration. Numerical data are given. Specifications 586,851 and 613,614 are referred to.
Patent GB-1267396-A (GB)
Title: Improvements relating to machine tools
Inventor: DENFORD GERALD HAROLD REGINALD
IPC: B23Q5/40
Filed: 1969-04-09
Abstract: 1,267,396. Nut controllers; screw-and-nut gearing. DENFORD MACHINE TOOLS Ltd. 17 Feb., 1970 [9 April, 1969], No. 18296/69. Headings B3B and B3T. [Also in Division F2] A split nut controller for a displaceable slide member in a machine tool such as a lathe, comprises half nuts 18 supported on carriers 12 which are pivotally mounted on pins 16 on the wall 14 of casing 10 mounted on a machine slide, the nut halves being urged apart by a spring 26 and closed against the spring to engage the lathe lead screw by rotatable member 24 located in a bore in the wall 14. The closing action of the half nuts is effected by a pin 20 which extends from the half nuts respectively to engage in chordal slots 22 in member 24. The rotation of the member 24 closing the half nuts and being returned in this position by an "over centre" relationship with the spring whereby the half nuts are held in the closed position and just overcome the force of the spring. To effect opening of the nuts to disengage the driving connection between half nuts and the lead screw a rod member 34 with a rack 30 thereon which engages teeth on the periphery of the member 24, is displaced in a direction parallel to the lead screw to rotate the member which permits the spring force to urge the half nuts apart. The rod member 34 may be actuated by abutment with an adjustable stop 42 on the machine tool as the machine slide traverses the bed. Alternatively, the member 24 may be operated manually.
Patent GB-1423749-A (GB)
Title: Jacks
IPC: B66F3/22
Filed: 1973-04-17
Abstract: 1423749 Lazy-tong jacks and lifting platforms DUNLOP Ltd 17 April 1973 [19 April 1972] 18345/73 Headings B8J and B8H A jack comprises a rectangular base 1 on each side of which are two pairs of cross-pieces pivoted at their centres 3. One cross-piece of each pair is pivoted at 4 near the end of the base 1, the other cross-piece resting on the base via a roller 5. The cross-pieces 2 support a platform 6, one being pivoted to it at 7, the other bearing a roller 8 in a rail (not shown). Pneumatic bellows 9 between the base 1 and the platform 6 can be inflated to raise the platform 6. At least one further platform 10 can be supported from the platform 6 in a similar manner. A safety device is provided to prevent collapse of the jack should the bellows 9 be accidentally deflated. This device comprises a stop member in the form of a bar 13 pivoted at 14 to one of the cross-pieces 2 at its lower end with the roller 5. Abutment faces on block 16, 17 are provided to engage the lower ends of the other crosspieces 2 adjacent their rollers 5. The bar 13 may be disengaged by a lever 19. the lever being automatically returned to its inactive position by a lug 21 on the bar 13 when the jack is lowered. The bar 13 automatically comes into action as the jack is raised as the blocks 16, 17 are bevelled on their non-abutment ends. In a modification (not shown) the safety bar is pivoted to the base of the jack.
Patent GB-1058287-A (GB)
Title: Improvements in or relating to voltage-stabilized power pack
IPC: G05F1/573
Filed: 1964-05-04
Abstract: 1,058,287. Protective arrangements. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. May 4, 1964 [May 4, 1963 18354/64. Heading H2K. [Also in Division G3] A voltage regulator comprises input terminals 1, 2 connected to a supply source including a transformer 14 and a rectifier 15; output terminals 4, 5; a power transistor 17 in the series load current circuit which also includes a fuse 18 and a resistor 19; and a first control transistor 22 for controlling the impedance of transistor 17 in dependence upon output voltage variations as detected by a voltage divider 20, 21 connected across the output terminals 4, 5 and as compared with a reference voltage across a Zener diode 23, whereby the output voltage is maintained constant up to a predetermined value of load current. When this value of current is exceeded, diode 25 is rendered conductive by the voltage at the collector of a second control transistor 26 which amplifies the voltage drop across resistor 19; control by transistor 26 then supersedes control by transistor 22 which no longer responds to the voltage divider 20, 21 because of the low resistance, presented by the conducting, diode 25, between its base and the collector of transistor 26. As the load current rises above the predetermined value, the collector voltage of transistor 26 becomes more negative and the action of transistor 22 causes an increase in the resistance presented by transistor 17 whereby the output voltage falls until a low-voltage protective relay or fuse (not shown) operates at a second predetermined value of current to disconnect the supply from the regulator. The Specification discusses the load sharing characteristics of the regulator when operated in parallel with similar arrangements (Figs. 2 and 3, not shown), and describes an embodiment with protection against excess temperatures and with a bi-stable circuit arranged to protect against overloads (Fig. 5, not shown). Valves may replace the transistors 17, 22 and 26.
Patent GB-847171-A (GB)
Title: Permanently lubricated rubber bearing
IPC: F16C33/22
Filed: 1958-06-09
Abstract: 847,171. Pivots. CLEVITE HARRIS PRODUCTS Inc. June 9, 1958 [June 11, 1957; Nov. 27, 1957], No. 18387/58. Class 65(2). Relatively movable surfaces are separated by a rubber or rubber-like bushing or other member and lubricant is sealed between the rubber and one or both of the surfaces. As shown in Fig. 1 there is relative movement between shaft 11 and arm 10. Fitted about the reduced end 13 of shaft 10 is a sleeve 20 to which a rubber bushing 22 is bonded. The bushing rotates within a collar 21 forced in an aperture in the arm 10 and is provided with longitudinal grooves 50 in which lubricant is sealed. The collar 21 has at one end an inturned flange 34 engaging in a corresponding groove in the bushing. At the other end both the collar and bushing are of enlarged diameter and flanges 41, 42 form a lubricant and dirt seal. Instead of spaced grooves 50 the bushing may have a scalloped outer surface, or the grooves may be connected by a single circumferential groove. As shown the bushing is retained on shaft I by a washer 55 held by bolt 15 but in pivots designed to take end thrust either the open end of collar 21 is bent over the bushing or an end plate is secured in the collar. As shown in Fig. 15 relatively movable members 130, 131 are corrugated or screw threaded with the rubber interposed. Lubricant is retained in grooves or dimples formed in any or all of the opposed surfaces. The invention is also shown applied to a ball joint in which the spherical surface may be dimpled. In Fig. 27, lever 230 moves relative to the fixed frame 231. The cup-shaped end of lever 230 moves between rubber bearings 233, 234 retained in position by member 232 bolted to frame 231.
Patent GB-946073-A (GB)
Title: Improvements relating to luminescent materials
Inventor: WARD HAROLD FRANCIS
IPC: C09K11/69
Filed: 1959-05-29
Abstract: A luminescent material comprises a halovanadate having the molecular formula xMO.V2O5.yMH2 where M represents Zn, Cd, Mg, Sr or Ba, H represents Cl or F and x has a value between 1 and 6 and y has a value of 0.5 to 1.0.  The material may be prepared by heating in air at a temperature of 700-1200 DEG  C. an intimate mixture of an oxide of a metal M, a halide of the metal M and vanadium pentoxide or a vanadium salt which will, when heated yield the pentoxide, and after cooling powdering the resulting material.  A preferred material has the formula 3MO.V2O5M(Cl.F).  The material is stated to be capable of excitation by radiation of wavelengths 2357 <\>rA and 3650 <\>rA. According to the Provisional Specification the metal M can be calcium.
Patent GB-1072493-A (GB)
Title: Improvements relating to disc brakes
IPC: F16D65/14
Filed: 1965-05-03
Abstract: 1,072,493. Disc brakes. DAIMLER-BENZ A.G. May 3, 1965 [May 2, 1964], No. 18513/65. Heading F2E. A disc brake having hydraulically operated pistons 16 on both sides of the brake disc 17 has a mechanical brake-operating device arranged to act on the pistons through pressure pieces 19, which pass through the end faces of the cylinders 11 for the pistons. The pressure pieces are actuated by respective levers 22, (23) (Fig. 1, not shown) pivoted on opposite sides of the caliper 11 and connected by equally loaded rods (28), (29) (Fig. 4, not shown) which pass through holes in the brake pad backing plate to guide the latter. The mechanical actuation is effected by a pull on lever 22 in a direction stated to pass through the base of the caliper 11 so that no turning movement is applied thereto. Withdrawal of the rods and a cross-shaped spring (30), (Fig. 4, not shown) permits removal of the brake pads. An automatic wear adjustment of the one-way acting ratchet type is provided. A cylinder 33 disposed on the member 19 within the cylinder has its axial movement limited by the engagement of one end of a spring bow 34 with a larger radial hole 35 in the member. The outside of the cylinder is provided with detent teeth engaging with teeth of larger pitch formed one on each of a series of split rings 37-40 restrained from turning by a locking member 43 and secured by a circlip 46. On actuation of the piston 16 by hydraulic pressure the rings 37-40 move to the right with the piston and as the pad wears the teeth override and the piston moves gradually to the right in relation to the sleeve 33 and the flange 19<SP>1</SP>. On release of pressure the piston is returned by the action of a rubber seal 45, which overcomes the weak spring 36. To restore the initial setting, when replacing shoes, the members 19 are manually rotated through 90 degrees by a clip 31, the spring bow engaging bevels inside the split rings 37-40 to open them and disengage the teeth (Fig. 6, not shown).
Patent GB-564604-A (GB)
Title: An improvement in mercury switches for electrical circuits
IPC: H01H29/16
Filed: 1943-12-09
Abstract: 564,604. Converting. FOSTER, R. S. Dec. 9, 1943, No. 18539/42. [Class 38 (ii)] [Also in Group XXXVII] A body of mercury 9 serving as one contact of a switch is covered by a body of glycerine 16 sufficient always to cover the working part of the movable electrode 11, which is preferably of copper or other amalgam-forming metal. To prevent deterioration of the hygroscopic glycerine, a body of oil 19 may cover the latter. The contacts form part of an interrupter-circuit used for electrifying fences for restraining cattle. On energization of coil 1, the armature 17 is attracted, rotating arm 14 about pivot 20 and lifting electrode 11 clear of the mercury. Charging current now flows through the coil 1 to the electrolytic condenser 3 and, at the completion of the charge, the flow ceases, releasing the armature 17 to establish over the reclosed mercury switch a discharge circuit for condenser 3 through the coil 5, thereby energizing the transformer 6 over contact 18. A screw 7 controls the amount of immersion of electrode 11.
Patent GB-685328-A (GB)
Title: Coke-oven pusher machine having an articulated pusher ram
IPC: C10B33/10
Filed: 1950-07-25
Abstract: 685,328. Discharging horizontal coke ovens. KOPPERS CO., Inc. July 25, 1950 [Aug. 12, 1949], No. 18604/50. Class 51 (ii). In a coke oven pusher machine 20 adapted to work in a restricted space the pusher ram comprises a longitudinal bar having a relatively long primary portion 25 carrying the pusher head 30 and a supporting shoe 31 pivotally secured by a hinge pin 27 to a relatively short secondary portion 26 which in the inoperative position Fig. 1 swings downwardly about wheels 53 on a track 60 to a substantially vertical position. Pusher ram movements are controlled by a driven pinion 33 engaging a rack 32 and a flat surface 34 under the ram engages cylindrical surfaces on the pinion 33 and rollers 40 supported on the pusher machine frame, upward displacement of the ram being prevented by a roller 36 above the pinion 33 and guide members 66, 68 engaging wheels 65 mounted on said ram, side guide rollers 42 being also provided. The primary and secondary portions of the ram are respectively formed with a bifurcated head member 43 and a head member 44 having a narrow tongue engaging the aforesaid bifurcated member and secured to the hinge pin 27 by a set screw 46, Fig. 5, the members 43 and 44 being also formed with a coacting recess and projection in their contacting front faces 47 and 48. Initial movement of the ram from the inoperative position of Fig. 1 causes some movement of the wheels 53 which are mounted on the member 44 along the track 60 so that tne secondary portion 26 of the ram both moves to the left and rotates about the axis of the wheels 53 swinging the lower portion to the right, the arrangement being such that the lower end of the secondary portion 26 is never moved to the right beyond the position it occupies in the fully-retracted position. As the primary portion 25 of the ram moves to the left and the wheels 65 clear the guide members 66 the ram rocks about the pinion 33 and the supporting shoe 31 engages the refractory floor 11 of the oven well inside the door frame 17 so that the latter is not damaged.
Patent GB-790909-A (GB)
Title: Improvements in or relating to magnetic transducing heads
Inventor: BRUNT WILLIAM DAVID
IPC: G11B5/235
Filed: 1955-06-29
Abstract: 790,909. Magnetic recording and reproducing heads. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 4, 1956 [June 29, 1955], No. 18736/55. Class 40 (2). A magnetic transducing head has a spacer for the magnetic gap made of aluminium or an alloy thereof, the surfaces of said spacer having been oxidized to harden said surfaces. A convenient method of oxidizing said surfaces is to connect a sheet of aluminium foil, which may be of the order of 0.00025 inch thick, as an anode in a bath of chromic acid.
Patent GB-792428-A (GB)
Title: Improvements in or relating to armature coils for dynamo electric machines
IPC: H02K3/12
Filed: 1955-06-29
Abstract: 792,428. Commutator windings for dynamoelectric machines. FLETCHER, G. H. June 18, 1956 [June 29, 1955], No. 18831/55. Class 35. Armature slot conductors 1 are made of several separate sections or strands, one of which, at each turn, is extended beyond the rest to provide commutator connections 7 at the rear end of the coils. As shown, the coil has five turns of flat strip divided into four sections but interconnected, as by brazing at X. Coils are interconnected at the start S and finish F in the usual way except that the commutator risers are not used for this purpose. Multiturn coils may be provided by taking commutator connections from alternate coils or less often. The sub-divided conductors may lie vertically instead of horizonta,lly in the slots.
Patent GB-706933-A (GB)
Title: Machine tools for machining brake drums and the like
IPC: B23B41/12
Filed: 1951-08-10
Abstract: 706,933. Brake drums. STANFORD-ROBERTS MANUFACTURING CO. Aug. 10, 1951 [May 29, 1951], No. 18849/51. Class 103(1) [Also in Group XXII] A brake drum comprises a cast iron cylinder 271 and an annular steel disc 272 riveted to a hub 259. The drum is machined in one operation in a lathe designed for that purpose (see Group XXII).
Patent GB-774058-A (GB)
Title: Liquid filter
IPC: B01D25/00
Filed: 1955-06-29
Abstract: 774,058. Magnetic filters. ARGO GES FUR FEINMECHANIK. June 29, 1955 [July 21, 1954], No. 18873/55. Class 117 [Also in Group I ] The major part of liquid to be filtered entering at 8; Fig. 1, passes upwards through bore 10 and over permanent magnets 18, and through bores 20 and 21 to the outlet 9. The minor part passes downwards through bore 11 and inwards through an edge filter 23 and thereafter raises, first a piston 29 against a spring 30 and, second, a valve 38 (located in the piston) against a spring 42. The filtrate flows past the valve through apertures 43 in a nut 40 and is sucked through a nozzle 44 by the main filtrate, which it joins to flow out at 9. On cessation of in-flow pressure the filter 23 is backwashed by return of the piston 29. In Fig. 2, the magnetic and mechanical filter devices are reversed in position and secured to a removable member 57, and the nozzle 85 for the minor filtrate is eccentrically located in the outlet 54 beyond a valve 82. The backwashing of the mechanical filter is effected by filtrate impelled by air trapped during the filtering process under the dome 50.