baber/WOPTO huggingface dataset:
Patent GB-1185799-A (GB)
Title: Square-Wave Generator
IPC: H03K3/28
Filed: 1968-11-28
Abstract: 1,185,799. Delay line pulse oscillator circuits. INSTYTUT BADAN JADROWYCH. 28 Nov., 1968 [1 Dec., 1967], No. 56408/68. Heading H3T. A square wave oscillator comprises a transistor having negative feedback between output and input via a delay line comprising a number of sections 25-28 selectively switchable at 6-9 into circuit so as to vary its length and thus the oscillation frequency. In the circuit shown, when the transistor switches from cut off to saturation the resulting pulse at its collector passes through the line to cut-off the transistor again, the resulting pulse restoring the saturation-state after the delay so that the circuit oscillates between the states. Trimming capacitors are provided and the lines are double screened to prevent harmonic operation. An external line may be connected into circuit by switch 10. A strobing pulse may be obtained from a shaping circuit 37, 38 and the amplitude is adjusted by potentiometer 31 which varies the collector supply, the meter 33 measuring the supply voltage and thus indicating the pulse amplitude.
Patent GB-1376686-A (GB)
Title: Expanding shoe braking apparatus
IPC: F16D65/09
Filed: 1972-12-11
Abstract: 1376686 Internal shoe-drum brakes for trailer; braking responsive to direction of travel HAHN FAHRZEUGBAU GmbH 11 Dec 1972 [11 Dec 1971] 57150/72 Headings F2E and F2F An internal shoe drum brake for trailer overrun braking comprises a brake shoe 1 functioning as a primary shoe on forward movement in the direction of arrow A and a secondary shoe 2: an expanding device 3 positioned between the brake shoes 1, 2 is actuable to apply the shoes 1, 2 to the drum against the action of tension springs 16 17 and at their ends remote from the device 3 the shoes 1, 2 are supported on respective support members 4, 6 and a pivoted cam 11 is disposed between the support members 4, 6: during braking the pivotal cam 11 is acted on by counteracting forces P 1 , P 2  from support members 4, 6 and during braking on forward movement, A, the cam 11 remains in the same position but during braking on reverse movement, B, the cam 11 is pivoted anticlockwise to thereby reduce the braking force. As shown in Fig. 2 the support members 4, 6 are mounted for axial movement in a hollow cylinder 9 although two respective hollow cylinders could be utilized. The members 4, 6 are secured against rotation in the hollow cylinder 9 by, for example, stop springs and the members 4, 6 carry adjusting nuts 5, 7 on screw bolts, which nuts 5, 7 have slots for the respective ends of shoes 1, 2, the ports 4-7 and 9 serving for adjustment of the brake. The hollow cylinder 9 also supports a bearing pin 10 for the cam 11, which has a lever 13 extending through an aperture 12 in cylinder 9 and urged towards a stop 13 by a tension spring 14. The forces P 1 , P 2  act on the cam 11 with lever arms L 1 , L 2  which may be of unequal or equal length.  In the embodiment of Fig. 3 the cam 11a has an elongated hole 15 for pin 10. This allows of a reduction in the force acting on the cam 11a during braking on forward movement. The pivotal cam 11a can also be adjusted for wear occurring at its points of contact with support members 4, 6.
Patent GB-1299854-A (GB)
Title: Improvements in or relating to release means for vehicle door latches
Inventor: LUCKETT JAMES
IPC: E05B65/32
Filed: 1968-12-03
Abstract: 1299854 Latches WILMOT-BREEDEN Ltd 1 Dec 1969. [3 Dec 1968] 57392/68 Heading E2A A vehicle door latch comprises a bolt 3. rotatable on a back plate 1, spring urged pivoted pawl 4 having one arm 7 engageable with the bolt, outer and inner release levers 10, 14 and a two armed locking lever 17 which has a waisted roller 29 engaging a slot 27 in one channel shaped end portion of an end link 19 of an inner remote control linkage such that actuating the locking lever 17 bodily displaces the link 19 so that a web 28 thereon is unable to contact a stud 24 on a pivoted release lever 22 when the link is actuated and therefore is unable to release the bolt. The locking lever may be actuated by rotating the link 19 in the reverse direction from that for releasing the bolt.
Patent GB-1121060-A (GB)
Title: Improvements in or relating to friction clutch plates
IPC: F16D13/68
Filed: 1966-12-22
Abstract: 1,121,060. Clutch plates. SOC. ANON. FRANCAISE DU FERODO. 22 Dec., 1966 [24 Dec., 1965], No. 57526/66. Heading F2U. In a friction clutch disc each opening 19 for the reception of the normal helical vibration damping spring has small circular holes 20a- 20d near the corners with inclined slits 21a- 21d extending between the corners and holes, so that larger bearing areas for the ends of the springs are provided when the outer and inner edges AD, BC are bent out to form the usual lips.
Patent GB-1187730-A (GB)
Title: Apparatus for the Production of Cast Concrete Members
IPC: B28B11/14
Filed: 1968-12-05
Abstract: 1,187,730. Concrete casting plant. SPAN-DECK Inc. 5 Dec., 1968 [5 Dec., 1967], No. 57831/68. Heading B5A. A concrete casting plant, Fig. 1, comprises a manufacturing area 10, having an elongated curing area 12, and an elongated unloading and overrun area 16, 18 on opposite sides thereof, a track 20 running through the three areas, an elongated casting bed 14 movable along the track in either direction and a casting machine 40 in the manufacturing area to cast concrete on the bed 14 while it is moved through the manufacturing area, the casting bed 14 remaining stationary in the curing area while curing. As shown in Fig. 1, manufacturing area 10 also contains storage tracks 50 higher than tracks 20 and on which the main casting machine 40 is stored as well as soffit laying unit 36, pallet cleaning and oiling unit 52, soffit rolling unit 54, and plank cutting unit or saw 56. There is also a transfer track 58 on the same level as track 20, and transfer car 60 running on track 58 carries a further track level with storage tracks 50 and a track 78 on the casting bed 14 either side of pallet 84. After casting and curing of the complete concrete plank in area 12, door 164 is opened and the bed 14 driven to the right by means 22. Saw 56 is driven on to track 78 on bed 14 by means of transfer car 60 and moved to the locking position where it is held by means 270. Bed 14 is moved intermittently to the right, saw 56 cutting the plank into desired lengths which are unloaded in area 16, e.g. by crane. After this right to left traverse of bed 14 the saw 56 is replaced by pallet cleaning and oiling unit 52 for a continuous left to right traverse of the bed 14 carrying the pallet 84. During a further right to left traverse, a soffit layer 27, Fig. 2, is east by means of soffit laying unit 36, used together with soffit rolling unit 54 (see also Figs. 12-14, not shown). Finally an upper concrete layer 29 is cast by means of main casting machine 40 (see also Fig. 15, not shown) during a left to right traverse into curing area 12. Area 10 also includes a fixed overhead concrete batch plant 28 to feed " dry " concrete mix through shoot 32 to a point 34 above soffit laying unit 36 when in use or " wet " concrete mix to a point 38 above main casting machine 40 when in use, and a fixed overhead core material container 42 to deliver core material through shoot 44 to a point 46 above the core material hopper of main casting machine 40. The pallet 84 has pivotable sides (92, Fig. 4, not shown), operable by hydraulic cylinder 104. The apparatus is particularly suitable for production of concrete planks, Fig. 2, having a bottom wall or soffit 27 of a lightweight, dry aggregate/cement composition and a top wall 29 with webs 31, 33, 35, 37 of a dense, strong, wet concrete mix, with a plurality of prestressed cables 41 and reinforcing rods 43. A granular core material may be used and either removed or retained for insulating or other purposes.
Patent GB-1412604-A (GB)
Title: Drinking straw
IPC: A47G21/18
Filed: 1972-12-15
Abstract: 1412604 Drinking straw S FRIEDMAN 15 Dec 1972 [17 Dec 1971] 57926/72 Heading C6E A drinking straw, see Fig. 1, comprises a transparent first section 1a and a second section 1b, the two sections communicating with one another. Thus the sections 1a and 1b may be of one piece or, as shown, may be tightly telescoped one into the other. Section 1a has an open end 2a and is surrounded with clearance by a transparent or translucent tube 4 which projects with its free end portion 4a beyond the open end 2a and is provided in the region of the latter with at least one very small pinhole 3. The free end portion 4a of tube 4 is closed by a removable or non-removable plug 5. Section 1b has an open end 2b which is to be placed in the mouth of the user and, according- ly, section 1b may be made of disposable material such as paper, straw or plastics. The plug 5 may be placed, as shown, in the mouth of a doll D and the open end portion 4b of the tube 4 immersed in a body of liquid 7 in container 6. When child C applies suction at open end 2b, liquid will be drawn through the open end portion 4b into the clearance between tube 4 and section 1a, rising in this clearance to the open end 2a. Liquid will then proceed through sections 1a and 1b to the child's mouth, thus creating the illusion that the child and the doll are drinking together. Pinhole 3 ensures that, when suction is no longer applied at open end 2b, the liquid in the clearance between tube 4 and section 1a will flow back into the container 6. According to an alternative construction Fig.2, the drinking straw comprises section 20 and transparent section 21 telescoped one into the other. Section 21 is tubular and has located therein a divider 25 extending longitudinally of section 21 from the vicinity of an opening 22 through which liquid enters. Adjacent to pinhole 23, the transverse wall closing the end of section 21 is provided with a mouthpiece 24 for insertion in the doll's mouth. When suction is applied to the open end of section 20, liquid is drawn through opening 22 along channel 26a, to the free end of divider 25, back along channel 26b and into section 20.
Patent GB-1356644-A (GB)
Title: Facsimile scanning apparatus
IPC: H04N1/08
Filed: 1971-12-14
Abstract: 1356644 Facsimile apparatus MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS Inc 14 Dec 1971 [16 Dec 1970 24 Dec 1970 15 June 1971] 58104/71 Heading H4F In facsimile apparatus the sheet to be scanned for transmission or reproduction is held against the outer surface of a transparent cylinder 16 by means of an endless belt 15 wrapped around part of the cylinder. Scanning elements 20/21 on rotating and axially moving head 4 perform a helical scan of the sheet through the transparent cylinder. A microswitch 23 determines when a sheet is placed on the bed 1 and activates a belt roller drive motor 8 such that the sheet is drawn in between the cylinder and belt until symmetrically placed with respect to the overlapping area. The motor 8 is switched off when this symmetrical position is reached by virtue of microswitch 7 coacting with cam 18. At the end of the helical scan, a spring biased wire 13 draws head 4 back to its starting position. Motor 8 is also restarted, to draw out the sheet from between the cylinder and belt whence it falls out beneath bed 2. Lateral movement of belt 15 on its rollers can be prevented, Fig. 4, by having a plurality of side by side belts supported on rollers having belt retaining peripheral rings formed on either end of their surfaces.
Patent GB-1419077-A (GB)
Title: Stabilizing and anti-snaking device for caravans and trailers
IPC: B60D1/06
Filed: 1972-12-19
Abstract: 1419077 Anti-snaking vehicle coupling R TUNESI 19 Dec 1972 [20 Dec 1971 12 Dec 1972] 58451/72 Heading B7T An anti-snaking vehicle coupling comprises a leaf spring 13 connected at one end to a trailer drawbar 3 by a vertically operable screw-jack 15 and at its other end by means of a rotary damper to a bar 8 adapted to be bolted to the mounting bracket 6 of a ball hitch 4 coupled with a socket on drawbar 3, the coupling in use transferring trailer weight to the towing vehicle by raising and stressing the spring 13 by jack 15 and preventing snaking by the damper, the latter consisting of a bolt 24 which passes through a sleeved aperture in the spring and is integral with a plate 27, the upper end of the bolt passing through a bearing 10 bolted to bar 8 and being retained therein by cotter pin 32 passing through bore 31. The plate is non- rotatably connected to bearing 10 by a pin 34 entering one of a series of holes 35 and the spring retained on the bolt by nut 25. A friction plate 29 is located between plate 27 and a base member 28, the latter being rotatable on the bolt. Spring washers 26, 30 compress friction plate 29 between member 28 and plate 27. A pair of springs and rotary dampers may be provided one on either side of drawbar 3. In a modification a steel bar may replace spring 13 and a spring within the jack provide resilient stressing of said bar. Alternatively the spring or steel bar may lie below the drawbar and the jack pass therethrough. In Fig. 14 the stationary bearing 10 is formed with a frusto-conical aperture 54 adapted to receive the bolt 24 and its formed with a serrated surface 56 which is engaged by surface 48 on plate 47 to prevent rotation of the bolt. The bolt 24 may enter aperture 54 when canted. Alternative means preventing rotation between bolt 24 and bearing 10 are disclosed. If the drawbar is telescopic for use with an over-run brake a spring or air bag may be inserted between the drawbar and spring to prevent stress between the telescoping parts. The spring 13 may be arranged above the drawbar. In the embodiment of Fig. 23 the steel bar is replaced by a steel iron arm 84 and is stressed by a spring 32 surrounding a jack passing through the drawbar and connected to the arm by a cable 85.
Patent GB-1411957-A (GB)
Title: Preparation of benzoselenazoles
IPC: C07D517/04
Filed: 1972-12-21
Abstract: 1411957 5,6-Dialkoxy-2-alkyl-benzo[b]selenazoles ILFORD Ltd 15 March 1974 [21 Dec 1972] 59055/72 Heading C2C A benzoselenazole (I), where R 1  and R 2  are C 1-4  alkyl or form a methylenedioxy group and R 3  is C 1-4  alkyl, is made by heating an alcoholic solution of a dinitro compound II with an aqueous alkali metal diselenide and cyclizing the resulting bis-(4,6-disubstituted-2-nitrophenyl) diselenide, by heating, under reducing conditions with a C 1-4  carboxylic acid anhydride. Bis - (4,5 - dimethoxy - 2 - nitrophenyl)- diselenide is made by reacting 4,5-dinitroveratrole with potassium diselenide. Bis.(4,5- methylenedioxy - 2 - nitrophenyl) diselenide is made in a similar manner.
Patent GB-1270154-A (GB)
Title: Digital cutoff system
IPC: G01G13/28
Filed: 1969-12-10
Abstract: 1,270,154. Control systems. RELIANCE ELECTRIC CO. 10 Dec., 1969 [16 Dec., 1968], No. 60377/69. Heading G4H. In apparatus for comparing a reference digital signal representing a required condition with a digital signal representing an actual condition a first signal is generated at coincidence and a second signal is generated when the actual condition signal exceeds the reference digital signal, a common control signal being generated in response to either the first or second signals. As described for controlling a weighing scale the count in multi-decade counter 12-15 (Fig. 2) representing the actual weight is compared with the required weight represented by the position of switch 19 to generate signals on leads 1000A, 100A, 10A, 1A at equality so that a coincidence circuit (Fig. 3, not shown) is triggered. The counters operate as ring counters except that with the nth output lead energized the preceding n-1 leads are also energized. Further switches 20 ganged to switches 19 detect an overweight condition since the counter outputs of the three most significant decades are stepped down 1 unit before being connected to the contacts of switches 20, i.e. the "two" output is connected to the "one" contact so that with, for example, a required weight of 2,875 units conductor 1000B is only energized when at least 3000 units have been fed to the weighing scale. The counter outputs are connected via OR gates to an AND gate (22, Fig. 3, not shown) to generate a control signal to the weighing scale at coincidence or overweight.
Patent GB-1292540-A (GB)
Title: Combination thrust-radial bearing
Inventor: MORI HIDEO
IPC: F16C17/22
Filed: 1970-12-22
Abstract: 1292540 Bearings H MORI 22 Dec 1970 60756/70 Heading F2A [Also in Division H2] A bearing member for a rotating shaft has a plastics bearing bush 1 for receiving radial load to which is connected a part 6 for receiving axial load, there being a clearance between the bush and the part 6 such that in use thermal expansion and deformation of the bush due to heating of the axial load receiving part is reduced. The bush is provided with lubricant pockets 2 for supplying grease to the bearing surface of the journal. The axial load receiving part is preferably of metal and is connected to the bush by projections 8. A plastics washer may be inserted between the metal portion 6 and the corresponding bearing surface of the shaft. An alternative embodiment (Figs. 13 to 15, not shown) has axially extending projections (27) on a metal plate (24) fixed to the shaft supported in two opposed bearings, the projections being resilient to take up thermal expansion.
Patent GB-1382249-A (GB)
Title: Shock absorber and suspension strut
IPC: F16F9/06
Filed: 1971-12-30
Abstract: 1382249 Hydropneumatic suspension units TOKICO Ltd 30 Dec 1971 [17 April 1971] 60878/71 Heading F2S In a hydropneumatic piston-cylinder suspension unit of the type having a liquid-containing cylinder and a hollow piston rod containing gas and liquid, liquid chamber C is in permanent communication with chamber B, and a non- return valve 418 on the piston rod permits flow from the liquid chamber A into the gas chamber D. Liquid chamber A is in permanent or valved communication with chamber B- either directly (as shown) or indirectly via chamber C. The unit may be combined with a helical spring (Figs. 3 and 4, not shown).
Patent GB-1240000-A (GB)
Title: Signal reproducer
IPC: A63H3/33
Filed: 1968-12-23
Abstract: 1,240,000. Gramophone for toy figure. W. EISEN, [trading as TROSSINGER METALLSTIMMENFABRIK HANS EISEN]. 23 Dec., 1968 [22 Dec., 1967], No. 61200/68. Heading G5R. In a gramophone for a toy figure a pivoted weighted arm swings into engagement with an actuating member as the figure is moved, thereby energizing the gramophone. Movement of the figure pivots weighted arm 98 into engagement with actuating button 73 which is depressed against the action of spring 94. Downward movement of the button tilts turntable and record 20 whereby pick-up arm 36 with needle 78 can swing under the action of spring 66 into engagement with outer stop 42. The motor drive circuit is opened by a switch contact 74 actuated by the depression of the button but a second switch contact 52 also connected in the-motor circuit is closed as operating member 62 on the pick-up arm is moved away therefrom. As the weighted arm moves off the button the turntable and record reassume their operating position in contact with the pick-up arm needle and the switch contact is closed, thereby energizing motor 28 which drives the turntable and record via belt 24. The drive is switched off at the end of the record as member 62 on the pick-up arm opens switch contact 52. The weighted arm can include a pivoted portion which acts to operate the actuating member only when the arm swings in one direction.
Patent GB-1240535-A (GB)
Title: Improvements relating to photographic film assemblies
IPC: G03B17/34
Filed: 1968-12-30
Abstract: 1,240,535. Film assemblages. INTERNATIONAL POLAROID CORP. Dec. 30, 1968 [Dec. 27, 1967; March 18, 1968], No.61700/68. Heading G2A. A film assemblage, intended for use in the camera of Fig. 1 (not shown), and shown in exploded view in Fig. 2 comprises a container holding a plurality of film units in stacked relation, which can be withdrawn one at a time through an opening at one end of the container, and also a sheet of opaque material which extends across the said opening. The assemblage is formed as a front section 14 and a rear section 16, flanges 28 on section 14 fitting within flanges 36 on section 16. Respective extensions 30 and 38 on the two parts co-operate to define a slot through which the film unit is withdrawn after exposure, which exposure is effected through an opening 24 in upper part 14. A number of tongues 46 are cut or pressed out of the bottom wall 34 of part 16, and act as springs for biasing the film units upwards. A sheet 18 of opaque material is positioned within the assemblage, below the film units, which are thus shielded against stray light entering the openings 44 from where the tongues 46 have been cut. The forward end of sheet 18 is bent into a number of sections 52, 50, 48, so that the front section 48 extends into the withdrawal slot between extensions 30 and 38, so closing it against stray light. Since sheet 18 is flexible, the sections 50, 48 will allow a film unit to be withdrawn when required, and the sloping configuration of section 50 will ensure that only the topmost film unit is withdrawn.
Patent GB-647619-A (GB)
Abstract: 647,619. Book racks. JOSEPH, J. Oct. 7, 1948, No. 26171. [Class 52 (i)] [Also in Group XVII] A rack or holder for directories and the like comprises a plurality of book-like containers 1 supported in a case 6 for individual combined pivotal and sliding movements, so that they can be positioned horizontally for removal of the contents, each container comprising two spaced side walls connected by a spline 2 that is formed with a projection or outwardly curled lip 12, Fig. 2, to slide on the case bottom and to co-act with an intumed lip 11 at the front of the case. The side walls are connected at the base by a bridge 3, Fig. 2, which supports the directory, and the containers may be open at the top only. Finger grips 5 and handles 9 may be provided on the containers and case respectively and the inner face of the back wall and bottom of the case may be lined with rubber.
Patent GB-2027762-A (GB)
Title: Improvements in and relating to Sewing Machines
IPC: D05B49/02
Filed: 1978-08-03
Abstract: A thread take up lever D has two or more thread take up arms 14. A sewing machine may include such take up lever D and one or more thread guides 15 can be located on the machine body below the take up arms 14. A shuttle F is provided capable of carrying a bobbin or spool K of thread which can accommodate at least one thousand yards of thread, the take up lever being suitable for the large loop of thread necessary to pass round such bobbin. <IMAGE>
Patent GB-2029754-A (GB)
Title: Surgical Stapler
IPC: A61B19/00
Filed: 1978-09-14
Abstract: An apparatus for suturing organs comprises two clamps 1, 2 having two jaws 3, 4, 5, 6 each for clamping the organs and detachably joined together so that the mating plane I, I, of the jaws of each clamp is perpendicular to the mating plane II, II of the clamps. Mounted on the clamp jaws are magazines 9 with slots 10 for staples, staple pushers 11, dies 12 with grooves 13 for clinching said staples and casings 15 with members 17, 18 fixing the walls of the organs. The casings are set on each of the jaws in guides (21, Fig. 4) providing for the restricted movement of said casings in a plane perpendicular to the mating plane of the jaws and the mating plane of the clamps. Mounted on said jaws are locks (27, Fig 5) locking the casings in the forward position, in which the locking members 17, 18 lie between the mating surfaces of said clamp jaws and at some distance in front of the mating surfaces of said clamps, and locks 31 locking said casings in the backward position, Fig. 2, in which the locking members lie at some distance from the mating surfaces of the clamp jaws and approximately in the mating planes of the clamps. <IMAGE>