baber/WOPTO huggingface dataset:
Patent GB-218840-A (GB)
Title: Improvements in and relating to pneumatic hammers
IPC: B25D17/02
Filed: 1923-07-07
Abstract: 218,840. Meurer, N. July 7, 1923. Percussive tools.-Coatings of sprayed metal produced by the method described in Specification 25132/13, [Class 82 (ii), Washing granular &c.], are hammered by a pneumatic hammer with a number of separate spring-mounted tappets c mounted in the hollow hammer-head g. A telescopic pipe f conveys gas to the head, whence it escapes through holes h and is ignited for the purpose of heating the tool and the work. The faces of the tappets may be made exchangeable, to accommodate work of different sorts.
Patent GB-738620-A (GB)
Title: Method of fitting closing channels in stator slots of electrical machines
IPC: H02K15/06
Filed: 1953-06-25
Abstract: 738,620. Coil-making apparatus. COMPAGNIE ELECTRO-MECANIQUE. June 25, 1953 [Nov. 13, 1952], No. 17682/53. Class 35. A method of inserting windings into stator slots from corresponding slots of a dummy rotor consists of first placing an insulating channel. member 3 in the rotor slots, laying the wires 1 on this channel and then forcing radially outwards both channel and wires into the stator slots under the influence of driving iods 6. This channel once inserted in the stator slots does the function of a winding supporter thus eliminating the need of a slot wedge. Specifications 639,069, 649,432, 725,231 and 725,236, [Group XXIX], are referred to.
Patent GB-1055852-A (GB)
Title: Improvements relating to photographic apparatus
IPC: G01T1/29
Filed: 1965-04-27
Abstract: 1,055,852. Local viewing by scanning. CEDARS OF LEBANON-Mt. SINAI HOSPITALS OF THE LOS ANGELES JEWISH MEDICAL CENTER. April 27, 1965 [April 27, 1964], No. 17699/65. Heading H4F. The distribution of radio-active isotope in a body on a table 13 is determined by a detector 11 which is traversed over the body in the x direction in a succession of parallel lines spaced apart in the y direction, the output from the detector being applied to modulate the grid 88 of a cathode-ray tube 21 which is scanned in steps with the detector movements by signals generated by potentiometers 29, 30, whereby the tube displays a light pattern corresponding to the distribution of radio-activity. The cathode-ray tube is photographed by colour camera 20, and in accordance with the characteristic feature of the invention the recorded image is given a colour characteristic, in accordance with the level of activity determined by the detector, by means of a multi-colour filter 23 which is positioned so as to introduce a particular colour under the control of a servosystem 28 actuated by a rate-meter 15. The filter may include colours corresponding to the visible spectrum and the operation may be such that areas of maximum activity are given the colour red and areas of less activity colours extending progressively through the spectrum to violet. The signals from the detector are applied to an analyzer which responds only to signals due to the particular isotope in use and produces output pulses of constant amplitude and width which recur at a rate directly proportional to the measured radio-activity. The pulses control rate-meter 15 directly, but are applied to modulate the cathode-ray tube grid via a one-shot trigger circuit 83 having an adjustable pulse width control to permit a suitable photographic exposure. The connections from potentiometer 29, 30 to the cathode-ray tube deflection plates include amplitude control potentiometers 45, 46 and lift potentiometers 60, 61 to allow for adjustment of the scan by detector 11 to accommodate bodies of varying size and position. A saw-tooth oscillator 80 imparts a high frequency oscillation to the cathode-ray tube in a direction transverse the x direction to fill the spaces between successive lines. A switch 86 and associated circuits 91, 92, 97, 98 permits the detector signal to be replaced by manually produced pulses for the purpose of adding reference marks to the photographic recording.
Patent GB-389802-A (GB)
Title: Improvements in or relating to apparatus for the impregnation of cables, etc
IPC: B67D7/32
Filed: 1931-06-18
Abstract: 389,802. Mixing-apparatus. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin. June 18, 1931, No. 17719. Convention date, July 15, 1930. Void [Published under Sect. 91 of the Acts]. [Class 86.] The material for impregnating electric cables &c. is melted and mixed in a vessel fitted with a heating jacket and with a heated stirrer. The heating may be effected electrically or by the circulation of steam or hot gases. In the form shown, the stirrer is hollow and steam is supplied thereto through a pipe k and escapes by a pipe l, suitable packing being provided.
Patent GB-808580-A (GB)
Title: Improvements in or relating to an element having a semi-conductor and a method of producing the same
IPC: C30B23/02
Filed: 1956-06-08
Abstract: 808,580. 8emi-conductor devices. ENOMOTO, M. June 8, 1956 [June 20, 1955; July 12, 1955 ; July 20, 1955], No. 17853/56. Class 37. A method of making a semi-conductor device comprises evaporating a layer of semi-conductor on to a base-plate, evaporating an impurity layer on to the semi-conductor layer and then heating to amalgamate the two layers. In one embodiment layers of Ge and As are evaporated on to a molybdenum or silverplate provided with rows of uniformly spaced recesses. The layers are then divided into a multiplicity of rectangular zones each centred on a recess by means of longitudinal and transverse cuts. Heating the plates in argon for ¢-1 minute at a temperature above the melting-point of germanium and slowly cooling causes the layers to form monocrystalline beads of N-type germanium in the recesses. In another embodiment a base plate of mica, quartz or ceramic is provided on one face with lines of equally spaced recesses. Germanium is then evaporated over the entire face of the base plate after which a mark is applied over each line of recesses and arsenic is evaporated on to the unmasked area. The masking is then removed, the arsenic coated areas masked and indium evaporated on the remaining germanium. The coatings are then subdivided into zones by lines along the centres of the arsenic strips and transverse lines between the rows of recesses. Each zone thus comprises a layer of germanium covered by a strip of indium between two strips of arsenic. The base plate is then heated in argon at about 960‹ C. for an extended period to aggregate the layers. On cooling monocrystalline beads comprising a zone of P-type material between two zones of N-type material are formed in the recesses. PNP-type monocrystals may be formed using a similar process but using indium instead of arsenic and vice versa. Silicon may be used instead of germanium and other tri- and pentavalent elements used as impurities. The germanium is evaporated on to the base plate in the apparatus shown in Fig. 2. The crucible 25 is charged with germanium and a number of base plates 39 fixed to the inside of the semi-circular lid 34 which is pivoted at 33. Cover 10 is then fitted the enclosure evacuated by pumps 37, 38 and the crucible electrically heated to the boiling- point of germanium. During the early stages of heating the lid 32 is placed over the crucible enclosure 17 whereby volatile impurities in the germanium are condensed on it or on the watercooled surface of enclosure 17. When the boiling-point is near, the lid is withdrawn and replaced by the semi-circular lid 34. A pure germanium deposit is thus formed on the base plates. The heating current is then switched-off and the assembly cooled with the flat lid over the crucible. The impurity coating is carried out in another vacuum chamber differing from that shown in Fig. 2 in that the impurity is placed in a tungsten coil instead of a crucible and the coil enclosure is not cooled. The coating procedure is as before.
Patent GB-180922-A (GB)
Title: Improvements relating to apparatus for measuring or gauging lengths
IPC: G01B3/11
Filed: 1921-07-01
Abstract: 180,922. Hellawell, B. July 1, 1921. No Patent granted (Sealing fee not paid). Measuring-tapes.-In a measuring-cord for use in the game of bowls, one end of the cord C is permanently attached to an inner sleeve carried by a hollow peg A, while the peg B is slidably mounted on the cord. This inner sleeve is normally retained in its retracted position by a spring, and when extended, the amount of such extension can be read from a scale a' on the sleeve. An aperture a<2> in the outer member enables the operator to retain the inner sleeve in its extended position by pressing on it with the thumb.
Patent GB-949784-A (GB)
Title: Thermal relays
IPC: H01H61/00
Filed: 1960-05-20
Abstract: 949,784. Thermal switches; control of A.C. motors. TEXAS INSTRUMENTS Inc. May 20, 1960 [July 29, 1959], No. 17951/60. Headings H2B and H2J. In a switch similar to that of Specification 941,873 a snap-acting thermally responsive electrically conductive member is mounted in cantilever fashion. A normally-closed contact 82 is mounted on a bifurcated bimetal strip 70 connected by its two legs to terminals 30 and 40. Upon heating, the strip 70 bends downward to open contacts 82, 24 and, if the heating current continues, then pushes an insulating button 100 on a spring blade 90 to close contacts 98, 44. When used as a start relay for a split-phase motor, the start winding is connected between terminals 20 and 40 and the main winding between terminals 30 and 40. Thus, both the starting current and the main current flow through the bimetal element 70 until the contacts 24, 82 open, when the main current only continues to flow therethrough. Continuance of this main current causes contacts 44, 98 to close and short out the bimetal element 70 to protect it from overheating. When the element 70 cools, it allows the spring blade 90 to rise, and since the main current is still flowing, the contact 98 continues to cycle, maintaining the bimetal element 70 just above the reset temperature. The operating temperature can be adjusted by turning screw 60 to move the terminal 40 (and contact 44) longitudinally and thus vary the tension of the bowed snap-action bimetal leg 76. By setting the operating temperature high, the switch is made relatively independent of ambient temperature changes.
Patent GB-1529398-A (GB)
Title: Connecting devices
IPC: H01M2/30
Filed: 1976-05-03
Abstract: 1529398 Connecting device C TRITENNE 3 May 1976 [7 May 1975] 17970/76 Heading H2E In a device for connecting a conical terminal 2 to a socket 3 the socket is provided with a thread 4, on to which an insulating cap 7 carrying a connector 10, may be fitted, the thread 4 being provided with projecting parts 6, Fig. 4 or 16, Fig. 5. The pitch of parts 6 is greater than the pitch of thread 4. In the embodiment the terminal 2 is the post of a battery terminal and is made of malleable material, e.g. lead and the socket 3 is made of steel, brass or bronze. The socket is fixed to the terminal by fully screwing cap 7, in which case the projecting parts 6 dig into the terminal to secure the socket. On unscrewing the cap the socket remains on the terminal and the connector 10 is separated from the flange 5 of the socket, breaking the connection between a wire (13, Fig. 3, not shown) connected to connector 10 by crimping or soldering, and the terminal. The socket is prevented from being unlocked from the terminal by the tapered shape of the projecting parts (Fig. 6) two or more of which may be joined by a slit 17. Connector 10 contacts socket 3, only when cap 7 is fully screwed (Fig. 3, not shown). In a modification (Figs. 7 to 9, not shown) the connector 10, is connected to an insert (23) which fits in an aperture (22) on the top of cap (20) and it contacts the socket 3, only when the cap is fully screwed through hemispherical studs (19) provided on the top (18) of socket 3.
Patent GB-857949-A (GB)
Title: Improvements relating to digital computing engines
Inventor: DIPROSE KENNETH VICTOR
IPC: G06F7/66
Filed: 1958-06-05
Abstract: 857,949. Digital differential analysers. ROE & CO. Ltd., A. V. June 3, 1959 [June 5, 1958], No. 17972/58. Class 106 (1). In a digital differential analyser the pulses applied to two inputs a, b are added, the summed output being taken from an OR gate c. In the event of input pulses coinciding an AND gate d feeds a pulse through a delay circuit f to set a flip-flop g. A clock pulse restores g and causes AND circuit k to deliver an extra pulse to the OR gate c. If this pulse coincides with another pulse on a or b then circuits c, f, g, k re-operate to insert yet another pulse. The inputs are arranged so that pulses would not coincide on inputs a and b in consecutive time intervals.
Patent GB-760527-A (GB)
Title: Improvements in or relating to the construction of walls and like structures
IPC: E04G11/34
Filed: 1954-06-18
Abstract: 760,527. Casting walls in situ. TAYLOR, A, J. June 17, 1955 [June 18, 1954], No. 17974/54. Class 20(2) In a method of constructing a wall, a mould constituted by a pair of side plates A, Fig. 5, is filled with a moulding material to form an element of the wall, and a ram C attached to the side plates is then operated to move the mould along the wall away from the moulded material into a position ready for moulding the next element. In Figs. 5 and 6, the side plates A have upper and lower flanges A<SP>1</SP>, A' and connected in spaced relationship by U-shaped bridge pieces B spanning the tops of the side plates, and a U-shaped plate K is supported by the bridge pieces B to form a cavity within the wall. A hydraulic ram C is mounted on a carriage L which is attached to the side plates A and is supported by a roller M. Two ram heads N<SP>1</SP>, N<SP>2</SP>, one on each side of the wall cavity, are connected by a cross-bar (Fig. 7, not shown), which extends through narrow slots in the plate K and is secured to the piston rod N of the cam C. Springs O<SP>1</SP>, O' are provided for retracting the ram after its operation to move the mould into the position for moulding the next element. The roller M is carried by a spindle M<SP>3</SP> which can be selectively located in either of two vertically spaced positions defined by holes M' in roller support bracket M<SP>1</SP>, the arrangement being such that, in the lower position of the roller M, the lower flanges A<SP>2</SP> of the side plates A rest upon the wall foundation whilst the lowermost course of the wall is under construction, and in the uppermost position of the roller M, the side plates A slightly overlap the faces of the previously formed course whilst a subsequent course is under construction. The apparatus shown in Figs. 5 and 6 may be assembled without the U- shaped part K and with a single ram head, for constructing solid walls. In order to form the first element in each course, a plate is detachably secured between the side plates A at the open end of the mould. In a modification (Fig. 4, not shown), for constructing circular or part circular walls, the side plates A may be curved and the mould guided along its line of travel by one or more radial arms rotable about and vertically adjustable upon, a centre post. The wall elements may be shaped, for example, to form keyways, by means of blocks inserted at the time of filling the mould. 'The ends of the elements may have keyways formed by means of a ridge on the ram head. In a modification the plates A may be provided with wheels or projections G, Fig. 3, which engage guide means, such as rails H<SP>1</SP> independent of the wall itself. The guide rails can be carried by a fixed framework H at appropriate heights or can be adjusted to any chosen height on vertical guide posts.
Patent GB-530187-A (GB)
Title: The preparation of therapeutically useful heterocyclic compounds
IPC: C07D213/76
Filed: 1939-06-20
Abstract: 530,187. Sulphonamide compounds. MAY & BAKER, Ltd., EWINS, A. J., and PHILLIPS, M. A. June 20, 1939, No. 17976. Addition to 512,145. [Class 2 (iii)] p-Aminobenzenesulphonamide derivatives of pyridine and quinoline are prepared by directly reacting nuclear-halogen compounds of pyridine and quinoline with p-aminobenzenesulphonamide. The products possess therapeutic properties. Examples are given of the interaction of p-aminobenzenesulphonamide with 2-bromoquinoline, 2-bromopyridine, 2-iodopyridine and nitro-2-chloropyridine.
Patent GB-765203-A (GB)
Title: Conveyor
Inventor: BLANCH ALVAN BENNETT
IPC: B65G19/20
Filed: 1954-06-21
Abstract: 765,203. Endless conveyers. ALVAN BLANCH DEVELOPMENT CO., Ltd. March 7, 1955 [June 21, 1954], No. 18104/54. Class 78 (1). Material is swept along an open-ended trough 11 by the lower run of an endless chain 12 having wings 20, the upper run being supported by guides 33 carried by inverted U-members 32 secured to the trough. The idler terminal chain sprocket 14 is adjustably mounted, being journalled between, the one ends of a pair of parallel arms 23 whose other ends are pivoted at 24 on brackets 25. These brackets are a adjustably secured to plates 27 fixed to the sides of the trough 11 by bolts 28, bolts 26 passing through longitudinal slots in the plates 27 and the position of each bracket being adjusted by a screw 29 working in a bracket 31. When the conveyer is to be operated, the arms 23 are moved anticlockwise about the axis 24 into a position in which they rest on an abutment 34 on the bracket 25 and apply a desirable tension to the chain, the wings 20 of the lower run in this position sweeping the contents of the trough from one end to the other. When it is desired to clean the trough, the arms 23 are returned to the position shown in Fig. 2 so as to provide sufficient slackness in the chain to allow the bottom run to be raised and supported on hooks 35 on the members 32.
Patent GB-140299-A (GB)
Title: Improvements in or relating to mowers
IPC: A01D34/26
Filed: 1919-07-21
Abstract: 140,299. Cluett, S. L. July 21, 1919. Mowing-machines.-A mowing-machine is provided with a floating gag-lever pivoted on links carried by the hanger on which the shoe is pivoted. The mower comprises a frame 13 supported on driving-wheels 10 and provided with a pole 15 and driving-shaft sleeve 14. Tie and push rods 17, 19, extending from and pivotally secured to the frame 13, rotatably support a hanger 21 to which the mower shoe 24 is pivoted by a pin 23. A handlever 27, pivoted on a lug on the sleeve 14, and connected to an arm 30 projecting from the hanger 21, controls the height of the cutters. The gaglever 35 is pivoted at 36 between the arms of a U-shaped link 34 pivoted at its other end to a lug 32 on the hanger. One end of the gag-lever is pivoted at 38 to the shoe 24, and the other end is connected by an adjustable link 39 to a bell-crank lever 40 pivoted on the pole 15 and operated by a foot-lever 44 or hand-lever 45. A spring 42, attached to the bell-crank lever 40 and to a lug on the sleeve 14, causes part of the weight of the cutter-bar and its associated parts to be transferred to the main wheels of the machine. In operation, on the hand or the foot lever being pulled backwards, the hanger 21, with the cutterbar, swings upwards, practically as a solid body, about the axis of the pivotal connexions of the bars 17, 19 with the machine frame, the gag-lever merely having a slight movement about its pivot 36 to lift the outer edge of the cutter-bar until the bar 17 engages a stop 47 on the poie 15. The lever 35 then swings sharply about its pivot 36 and is at the same time forced outwards about the pivot 33, causing the cutter-bar to swing upwards about the pivot pin 23 until, when the cutter-bar is practically in a vertical position, the lever 35 engages the pivot pin 33, which thus limits the movement of the lever.
Patent GB-146301-A (GB)
Title: Improvements in artificial teeth
IPC: A61C13/10
Filed: 1920-07-02
Abstract: 146,301. Riechelmann, O. Jan. 23, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Teeth. artificial.-A porcelain tooth having a T. shaped groove b, d is secured to the plate by means of a screw pin i, the head f of which compresses a flexible washer g arranged in the enlarged portion b of the groove. If a squareheaded pin f<1> is used the tooth is secured by means of a conical nut m fitting in a coned hole l formed in the plate h. In a modification, the tooth is cut away diagonally at the biting edge and the metal plate is correspondingly extended so that the bite comes on the plate. The tooth may have a vertical groove coinciding with a corresponding slot in a backing plate secured to the tooth by flanges engaging lateral acute-angled or rectangular grooves in the tooth. The washer g may be replaced by a plate u which is as wide as the groove b and which has a vertical slot v the edges v<1> of which extend into the groove d.
Patent GB-771553-A (GB)
Title: Improvements in or relating to tool makers' microscopes
IPC: G02B21/00
Filed: 1955-06-23
Abstract: 771,553. Microscopes. LINDNER GES., H. June 23, 1955 [June 29, 1954], No. 18233/55. Class 97(1) In a tool maker's microscope of the kind having the optical axis of the objective in line with the axis of a spindle on a machine tool and the optical axis of the ocular inclined thereto, illumination is provided by a light source from which the light rays reach the work (1) through the objective and (2) through an adjustable arrangement the optical axis of which intersects the optical axis of the objective in the edge or line of the work piece to be sighted. As shown in Fig. 1, the microscope has a casing 6 with a stepped conical shaft portion 25 which may be inserted into the bore of a spindle of a machine tool. The optical axis of the objective 1, mounted in the casing 6, is in line with the axis of the shaft portion 25, whereas the optical axis 2<SP>1</SP> of the ocular 3 mounted in a tubular extension 5 of the casing 6, is at an, angle thereto. Light from the work piece 14 passing through the objective reaches the ocular after reflection in a prism 21. A lamp 4 is housed in a chamber 7 in the microscope casing 6, and is surrounded by a cylinder 10 rotatable within the chamber 7. Light from the lamp 4 passes out through an aperture 10" in the cylinder 10 through lenses 18 to an optical flat 19 mounted at an angle of 45 degrees to the optical axis 2 of the objective 1. After reflection at the optical flat 19, the light passes through the objective to the work piece 14. The cylinder 10 has a tubular portion 8 projecting through an aperture 10<SP>111</SP> in the casing, the aperture 10<SP>111</SP> being sufficiently large for the tubular portion 8 to be adjusted so that the optical axis 12 of a lens system 11 mounted therein may intersect the optical axis 2 of the objective at the edge 13 of the work piece 14. By this means if the edge 13 of the work piece 14 is chamfered or bevelled, the bounding lines of the chamfered or bevelled area can be clearly seen and may be aligned with the graticule on a plate 24 which is viewed in the ocular 3. If desired, the tubular portion 8 may be moved into its dotted-line position so that the optical axis 12 is parallel to the optical 'axis 2 of the objective 1. In this case, the work piece is illuminated only by light emerging from the objective 1.