Abstract: The needle writing head comprises a support in two parts (5 and 6), each comprising recesses (15, or 18) forming guide paths for needles (16) located along two rows. The part (6) is movable parallel to the row of needles (16) over a distance equal to one-half of the distance between centers of the needles (16) so as to make it possible to place the needles of the second row in alignment or staggered in relation to the needles of the first row. Means (19 to 26) consist of notching means to fix the two relative positions of the parts (5 and 6).The latter (5 and 6) are rubies and the part (5) is in two parts (12and 13) glued at (14).

Abstract: A tidal station includes a plurality of turbine/generator sets removably insertable along the central axis of a caisson to provide a symmetrical installation. Fixedly disposed basin side and sea side diffusers include inlets alternately juxtaposed opposite ends of the turbine/generator sets as the sets are rotatably displaced 180 degrees between ebb and flood tides. Ballasting/deballasting structure contained in the caisson permits self-portability of the caisson to its site and subsequent positioning thereat.

Abstract: The supply conduits (1, 2) for two different gases to be mixted are each associated to a pressure regulator (3, 4) and lead into two chambers (5, 6) connected by chokes (7, 8) having a variable section area to a mixing chamber (9). A control member (13) allows the cross section area of the chokes (7, 8) to be varied without modifying the ratio between those cross section areas. Another control member (14) allows the ratio between those cross section areas to be varied without modifying the sum. This device allows a mixture of gases of any molecular weight in predetermined proportions.

Abstract: A compound bow includes a pair of improved pivotally mounted cam assemblies having separate, specification profiled string cable segments and power cable segments constructed and arranged to produce a draw force curve representing a greater area of stored energy than that obtained with most existing compound bows. The draw length of the bow, among other parameters, is readily altered without compressing and dismantling the bow cable components by removing and replacing differently configured draw length cam modules associated with the power cable segments. Attachment and subsequent turning of each of the timing, string and power cables is easily accomplished by means of cable adjusters carried by each cam assembly.

Abstract: A cask or container for dispensing liquid under pressure is of the type having a top housing with a bung hole therein and an extractor tube extending into the container and in which a top fitting is attached to the housing with means operative thereon to bring a gas introduction passage into communication with one part of the housing and a beverage outlet passage in to communication with the top of the extractor tube. The arrangement of the invention is such that pilferage from the container is reduced, achieved by welding the housing directly to the cask and arranging for the extractor tube to be withdrawn through the top of the housing with a sealing means arranged so that it can be upset and removed. The opening in the top of the housing is arranged to permit passage of the sealing means and extractor tube which is threadably engaged by a lower part of the housing for extraction by means of a special tool.

Abstract: A dart comprises a point portion 1, a barrel portion 2, a shaft 3 and a flight 4. The point portion 1 is detachably secured within the barrel portion 2 by a screw thread 8 provided at one end of the point portion 1 and a corresponding screw thread provided at one end 9 of the barrel portion 2. The shaft 3 is detachably secured to the other end of the barrel at 11 by screw thread 12. This enables the point or the shaft to be selectively connected with either end of the barrel whereby the dart may be made to have two different flight characteristics. In a second embodiment the barrel has different size screw threads at each end, and two points and two shafts are provided. One shaft and one point have a screw to match one end of the barrel and the other shaft and point have screw threads to match the other end of the barrel. The barrel of both embodiments has an asymmetrical longitudinal shape.

Abstract: A railway hopper car includes an angular roof having a roof sheet provided with lateral edges each connected to the top of the car side sheet by an elongated top chord. Each top chord includes a substantially rectangularly-sectioned tube member affixed to the exterior of the top portion of the side sheet and includes a top wall inclined inwardly and upwardly and projecting interiorly of the car beyond the top edge of the side sheet. The undersurface of the lateral portion of the roof sheet overlies and is attached to a substantial portion of the upper surface of the top chord top wall. An inside wall on each top chord comprises a vertical member terminating in a top edge abutting the inclined top wall to provide a smooth vertical plane readily admitting installation of the side sheets and subsequent car interior lining.

Abstract: The spectacle hinge comprises two parts (3) and (4) in order to insure pivoting of the arm (1) on the frame (2). An intermediate part (5) is fixed on the part (3) by means of a screw (6) and includes a portion (11) forming a cam for engagement with an elastic element (12) of the part (4). The part (4) is pivoted on the part (5) by a screw 10' passing through a hole (10). By removing the intermediate part (5) a standard hinge can be pivotally connected to part (3) in order to provide a standard hinge, that is one which does not utilize elastic means.

Abstract: A railcar for transporting coal includes steel sheets metallized with an aluminum coating on the interior surfaces thereof normally engaged by coal lading. A coating thickness of substantially 0.006-0.009 inch significantly extends the service life of the railcar by inhibiting corrosion and abrasion of the steel sheets by the coal. The method includes the steps of cleaning all interior surfaces of the railcar sheets prior to a metallizing operation and followed by application of a seal coat.

Abstract: The object to be measured (2) is placed on carrier (1). Measuring pins (7,8) can be adjusted roughly in terms of height after loosening screws (11). Sliding carriages (5,6) are guided movably by spherical guides in measurement support members (3,4) perpendicularly to the direction of measurement. Measuring pins (7,8) located in support members (3,4) which are provided with handles (13) and which are connected with sliding carriages (5,6) by means of leaf springs (14). If the laterally adjustable support member (4) is moved into the measuring position, the sliding carriages (5,6) with their measuring pins (7,8) can, within the limits of leaf springs (14), be freely centered in the pitch of the thread to be measured (2a) thus providing the ideal prerequisites for correct measurement of the thread diameter.

Abstract: A railway car adapted to convey cylindrical objects such as coils includes a plurality of fixed trough members and sections of shiftable inclined trough assemblies disposed atop a support deck. By selectively laterally displacing the shiftable trough assemblies the car is alternately configured to provide single/triple or double troughs, or a combination thereof, in order to achieve maximum lading capacity in any one car regardless of the diameters of the coils. Positioning elements on each shiftable trough assembly alternately mate with a fixed trough member or separate positioning elements on the support deck to specifically define the various trough modes. A lock assembly is operable to engage a retainer element carried by each shiftable trough assembly when located in either mode.

Abstract: The composition for in situ treatment of textiles or textile products comprises in admixtures:(a) an ammonium salt or mixture of ammonium salts having flame retardant properties,(b) a water-soluble amide decomposing at a temperature of 100.degree. C. to 200.degree. C. to give ammonia, and(c) aqueous acid in a concentration insufficient to cause degradation of a fabric by the composition when applied thereto.

Abstract: The tool comprises pliers (5) mounted in an extension of a shaft (2) mounted to rotate around its axis in tubular sleeve (4). Metal wire (14) can be engaged in an axial bore (12) of shaft (2) and between the jaws of pliers (5). The tool makes it possible to fasten two elements (17,18) to one another by means of the wire (14) by a pull exerted on the sleeve (15) of the tool which, in a first stage, wraps the ends of the fastener engaged between the jaws of the pliers (5), around one another, and, in a second stage, separates the fastener from the wire (14).

Abstract: The means for the capacitive measurement of displacements includes a scale in the form of a belt (10) movable longitudinally in relation to a measuring device which is provided with several groups of electrodes (22 to 25) connected by lines (27) to an electronic means. The belt (10) is made of metal and is provided with a plurality of regularly spaced rectangular openings (11). The belt (10) constitutes, with the transmitting electrodes (22 to 25) and a receiving electrode (29) situated relative to the transmitting electrodes, a differential condenser permitting the accomplishment of capacitive measurement of displacements.

Abstract: A merchandise pricing ticket assembly has a rigid highly polished plastic material forming a support panel which is printed with display matter and has areas left clear to form windows. Components of a soft flexible material, also highly polished, are provided which adhere to the rear of the windows whereby information on the components may be viewed therethrough. A setting panel is provided enabling the components to be laid out in their correct relative position before the support panel is laid thereover to pick-up the components. The support panel is thereafter retained in a channeled shelf fixture.

Abstract: A railway hopper car includes a curved roof having a roof sheet provided with lateral edges each joined to the top of a car side sheet by a top chord assembly. Each top chord assembly includes a top chord fully disposed within the car interior and having a vertical leg joined to the interior surface of a side sheet while an opposite inclined or angular leg is joined to the interior surface of the roof sheet. A curved cover overlies both top chord legs and forms, with the roof sheet and side sheet, a smooth continuously descending profile from the top centerline of the car roof to each of the car sides.

Abstract: An adjustable arrangement for anchoring the ends of each tension cable in a compound bow includes a displaceable disc cradled in a bridle cable suspended from each bow limb tip. Each disc is provided with a plurality of holes, slots or notches variably spaced from the center of the disc such that the distal portion of a tension cable may be selectively anchored in any one hole, slot or notch thereby allowing tuning of each bow limb by the alternate positioning of the anchored portions of the two tension cables in the respective discs. The slidable, captive engagement between the disc periphery and bridle cable automatically insures maintenance of each tension cable end within a plane passing through the bow centerline.